0.5.0-alpha.9

* Rewrite CSV conversion to dodge Serde

* Update CHANGELOG

.cargo/config

@@ -0,0 +1,2 @@
+[target.x86_64-pc-windows-msvc]
+rustflags = ["-Ctarget-feature=+crt-static"]

.editorconfig

@@ -3,19 +3,16 @@ root = true
 [*]
 end_of_line = lf
 charset = utf-8
-
-[*.lua]
-indent_style = tab
+insert_final_newline = false
 trim_trailing_whitespace = true
-insert_final_newline = true
 
-[*.rs]
-indent_style = space
-indent_size = 4
-trim_trailing_whitespace = true
-insert_final_newline = true
-
-[*.json]
+[*.{json,js,css}]
 indent_style = space
 indent_size = 2
-trim_trailing_whitespace = true
+
+[*.{md,rs}]
+indent_style = space
+indent_size = 4
+
+[*.lua]
+indent_style = tab

.gitignore

@@ -1,2 +1,5 @@
-/target/
+/site
+/target
+/scratch-project
 **/*.rs.bk
+/server/failed-snapshots/

.gitmodules

@@ -0,0 +1,15 @@
+[submodule "plugin/modules/roact"]
+	path = plugin/modules/roact
+	url = https://github.com/Roblox/roact.git
+[submodule "plugin/modules/testez"]
+	path = plugin/modules/testez
+	url = https://github.com/Roblox/testez.git
+[submodule "plugin/modules/lemur"]
+	path = plugin/modules/lemur
+	url = https://github.com/LPGhatguy/lemur.git
+[submodule "plugin/modules/promise"]
+	path = plugin/modules/promise
+	url = https://github.com/LPGhatguy/roblox-lua-promise.git
+[submodule "plugin/modules/t"]
+	path = plugin/modules/t
+	url = https://github.com/osyrisrblx/t.git

.travis.yml

@@ -0,0 +1,54 @@
+matrix:
+  include:
+    # Lua tests are currently disabled because of holes in Lemur that are pretty
+    # tedious to fix. It should be fixed by either adding missing features to
+    # Lemur or by migrating to a CI system based on real Roblox instead.
+
+    # - language: python
+    #   env:
+    #     - LUA="lua=5.1"
+
+    #   before_install:
+    #     - pip install hererocks
+    #     - hererocks lua_install -r^ --$LUA
+    #     - export PATH=$PATH:$PWD/lua_install/bin
+
+    #   install:
+    #     - luarocks install luafilesystem
+    #     - luarocks install busted
+    #     - luarocks install luacov
+    #     - luarocks install luacov-coveralls
+    #     - luarocks install luacheck
+
+    #   script:
+    #     - cd plugin
+    #     - luacheck src
+    #     - lua -lluacov spec.lua
+
+    #   after_success:
+    #     - cd plugin
+    #     - luacov-coveralls -e $TRAVIS_BUILD_DIR/lua_install
+
+    - language: rust
+      rust: 1.32.0
+      cache: cargo
+
+      script:
+        - cargo test --verbose
+        - cargo test --verbose --all-features
+
+    - language: rust
+      rust: stable
+      cache: cargo
+
+      script:
+        - cargo test --verbose
+        - cargo test --verbose --all-features
+
+    - language: rust
+      rust: beta
+      cache: cargo
+
+      script:
+        - cargo test --verbose
+        - cargo test --verbose --all-features

CHANGELOG.md

@@ -0,0 +1,204 @@
+# Rojo Changelog
+
+## [Unreleased]
+
+## [0.5.0 Alpha 9](https://github.com/LPGhatguy/rojo/releases/tag/v0.5.0-alpha.9) (April 4, 2019)
+* Changed `rojo build` to use buffered I/O, which can make it up to 2x faster in some cases.
+    * Building [*Road Not Taken*](https://github.com/LPGhatguy/roads) to an `rbxlx` file dropped from 150ms to 70ms on my machine
+* Fixed `LocalizationTable` instances being made from `csv` files incorrectly interpreting empty rows and columns. ([#149](https://github.com/LPGhatguy/rojo/pull/149))
+* Fixed CSV files with entries that parse as numbers causing Rojo to panic. ([#152](https://github.com/LPGhatguy/rojo/pull/152))
+* Improved error messages when malformed CSV files are found in a Rojo project.
+
+## [0.5.0 Alpha 8](https://github.com/LPGhatguy/rojo/releases/tag/v0.5.0-alpha.8) (March 29, 2019)
+* Added support for a bunch of new types when dealing with XML model/place files:
+    * `ColorSequence`
+    * `Float64`
+    * `Int64`
+    * `NumberRange`
+    * `NumberSequence`
+    * `PhysicalProperties`
+    * `Ray`
+    * `Rect`
+    * `Ref`
+* Improved server instance ordering behavior when files are added during a live session ([#135](https://github.com/LPGhatguy/rojo/pull/135))
+* Fixed error being thrown when trying to unload the Rojo plugin.
+* Added partial fix for [issue #141](https://github.com/LPGhatguy/rojo/issues/141) for `Lighting.Technology`, which should restore live sync functionality for the default project file.
+
+## [0.5.0 Alpha 6](https://github.com/LPGhatguy/rojo/releases/tag/v0.5.0-alpha.6) (March 19, 2019)
+* Fixed `rojo init` giving unexpected results by upgrading to `rbx_dom_weak` 1.1.0
+* Fixed live server not responding when the Rojo plugin is connected ([#133](https://github.com/LPGhatguy/rojo/issues/133))
+* Updated default place file:
+    * Improved default properties to be closer to Studio's built-in 'Baseplate' template
+    * Added a baseplate to the project file (Thanks, [@AmaranthineCodices](https://github.com/AmaranthineCodices/)!)
+* Added more type support to Rojo plugin
+* Fixed some cases where the Rojo plugin would leave around objects that it knows should be deleted
+* Updated plugin to correctly listen to `Plugin.Unloading` when installing or uninstalling new plugins
+
+## [0.5.0 Alpha 5](https://github.com/LPGhatguy/rojo/releases/tag/v0.5.0-alpha.5) (March 1, 2019)
+* Upgraded core dependencies, which improves compatibility for lots of instance types
+    * Upgraded from `rbx_tree` 0.2.0 to `rbx_dom_weak` 1.0.0
+    * Upgraded from `rbx_xml` 0.2.0 to `rbx_xml` 0.4.0
+    * Upgraded from `rbx_binary` 0.2.0 to `rbx_binary` 0.4.0
+* Added support for non-primitive types in the Rojo plugin.
+    * Types like `Color3` and `CFrame` can now be updated live!
+* Fixed plugin assets flashing in on first load ([#121](https://github.com/LPGhatguy/rojo/issues/121))
+* Changed Rojo's HTTP server from Rouille to Hyper, which reduced the release size by around a megabyte.
+* Added property type inference to projects, which makes specifying services a lot easier ([#130](https://github.com/LPGhatguy/rojo/pull/130))
+* Made error messages from invalid and missing files more user-friendly
+
+## [0.5.0 Alpha 4](https://github.com/LPGhatguy/rojo/releases/tag/v0.5.0-alpha.4) (February 8, 2019)
+* Added support for nested partitions ([#102](https://github.com/LPGhatguy/rojo/issues/102))
+* Added support for 'transmuting' partitions ([#112](https://github.com/LPGhatguy/rojo/issues/112))
+* Added support for aliasing filesystem paths ([#105](https://github.com/LPGhatguy/rojo/issues/105))
+* Changed Windows builds to statically link the CRT ([#89](https://github.com/LPGhatguy/rojo/issues/89))
+
+## [0.5.0 Alpha 3](https://github.com/LPGhatguy/rojo/releases/tag/v0.5.0-alpha.3) (February 1, 2019)
+* Changed default project file name from `roblox-project.json` to `default.project.json` ([#120](https://github.com/LPGhatguy/rojo/pull/120))
+    * The old file name will still be supported until 0.5.0 is fully released.
+* Added warning when loading project files that don't end in `.project.json`
+    * This new extension enables Rojo to distinguish project files from random JSON files, which is necessary to support nested projects.
+* Added new (empty) diagnostic page served from the server
+* Added better error messages for when a file is missing that's referenced by a Rojo project
+* Added support for visualization endpoints returning GraphViz source when Dot is not available
+* Fixed an in-memory filesystem regression introduced recently ([#119](https://github.com/LPGhatguy/rojo/pull/119))
+
+## [0.5.0 Alpha 2](https://github.com/LPGhatguy/rojo/releases/tag/v0.5.0-alpha.2) (January 28, 2019)
+* Added support for `.model.json` files, compatible with 0.4.x
+* Fixed in-memory filesystem not handling out-of-order filesystem change events
+* Fixed long-polling error caused by a promise mixup ([#110](https://github.com/LPGhatguy/rojo/issues/110))
+
+## [0.5.0 Alpha 1](https://github.com/LPGhatguy/rojo/releases/tag/v0.5.0-alpha.1) (January 25, 2019)
+* Changed plugin UI to be way prettier
+    * Thanks to [Reselim](https://github.com/Reselim) for the design!
+* Changed plugin error messages to be a little more useful
+* Removed unused 'Config' button in plugin UI
+* Fixed bug where bad server responses could cause the plugin to be in a bad state
+* Upgraded to rbx\_tree, rbx\_xml, and rbx\_binary 0.2.0, which dramatically expands the kinds of properties that Rojo can handle, especially in XML.
+
+## [0.5.0 Alpha 0](https://github.com/LPGhatguy/rojo/releases/tag/v0.5.0-alpha.0) (January 14, 2019)
+* "Epiphany" rewrite, in progress since the beginning of time
+* New live sync protocol
+    * Uses HTTP long polling to reduce request count and improve responsiveness
+* New project format
+    * Hierarchical, preventing overlapping partitions
+* Added `rojo build` command
+    * Generates `rbxm`, `rbxmx`, `rbxl`, or `rbxlx` files out of your project
+    * Usage: `rojo build <PROJECT> --output <OUTPUT>.rbxm`
+* Added `rojo upload` command
+    * Generates and uploads a place or model to roblox.com out of your project
+    * Usage: `rojo upload <PROJECT> --cookie "<ROBLOSECURITY>" --asset_id <PLACE_ID>`
+* New plugin
+    * Only one button now, "Connect"
+    * New UI to pick server address and port
+    * Better error reporting
+* Added support for `.csv` files turning into `LocalizationTable` instances
+* Added support for `.txt` files turning into `StringValue` instances
+* Added debug visualization code to diagnose problems
+    * `/visualize/rbx` and `/visualize/imfs` show instance and file state respectively; they require GraphViz to be installed on your machine.
+* Added optional place ID restrictions to project files
+    * This helps prevent syncing in content to the wrong place
+    * Multiple places can be specified, like when building a multi-place game
+* Added support for specifying properties on services in project files
+
+## [0.4.13](https://github.com/LPGhatguy/rojo/releases/tag/v0.4.13) (November 12, 2018)
+* When `rojo.json` points to a file or directory that does not exist, Rojo now issues a warning instead of throwing an error and exiting
+
+## [0.4.12](https://github.com/LPGhatguy/rojo/releases/tag/v0.4.12) (June 21, 2018)
+* Fixed obscure assertion failure when renaming or deleting files ([#78](https://github.com/LPGhatguy/rojo/issues/78))
+* Added a `PluginAction` for the sync in command, which should help with some automation scripts ([#80](https://github.com/LPGhatguy/rojo/pull/80))
+
+## [0.4.11](https://github.com/LPGhatguy/rojo/releases/tag/v0.4.11) (June 10, 2018)
+* Defensively insert existing instances into RouteMap; should fix most duplication cases when syncing into existing trees.
+* Fixed incorrect synchronization from `Plugin:_pull` that would cause polling to create issues
+* Fixed incorrect file routes being assigned to `init.lua` and `init.model.json` files
+* Untangled route handling-internals slightly
+
+## [0.4.10](https://github.com/LPGhatguy/rojo/releases/tag/v0.4.10) (June 2, 2018)
+* Added support for `init.model.json` files, which enable versioning `Tool` instances (among other things) with Rojo. ([#66](https://github.com/LPGhatguy/rojo/issues/66))
+* Fixed obscure error when syncing into an invalid service.
+* Fixed multiple sync processes occurring when a server ID mismatch is detected.
+
+## [0.4.9](https://github.com/LPGhatguy/rojo/releases/tag/v0.4.9) (May 26, 2018)
+* Fixed warning when renaming or removing files that would sometimes corrupt the instance cache ([#72](https://github.com/LPGhatguy/rojo/pull/72))
+* JSON models are no longer as strict -- `Children` and `Properties` are now optional.
+
+## [0.4.8](https://github.com/LPGhatguy/rojo/releases/tag/v0.4.8) (May 26, 2018)
+* Hotfix to prevent errors from being thrown when objects managed by Rojo are deleted
+
+## [0.4.7](https://github.com/LPGhatguy/rojo/releases/tag/v0.4.7) (May 25, 2018)
+* Added icons to the Rojo plugin, made by [@Vorlias](https://github.com/Vorlias)! ([#70](https://github.com/LPGhatguy/rojo/pull/70))
+* Server will now issue a warning if no partitions are specified in `rojo serve` ([#40](https://github.com/LPGhatguy/rojo/issues/40))
+
+## [0.4.6](https://github.com/LPGhatguy/rojo/releases/tag/v0.4.6) (May 21, 2018)
+* Rojo handles being restarted by Roblox Studio more gracefully ([#67](https://github.com/LPGhatguy/rojo/issues/67))
+* Folders should no longer get collapsed when syncing occurs.
+* **Significant** robustness improvements with regards to caching.
+    * **This should catch all existing script duplication bugs.**
+    * If there are any bugs with script duplication or caching in the future, restarting the Rojo server process will fix them for that session.
+* Fixed message in plugin not being prefixed with `Rojo: `.
+
+## [0.4.5](https://github.com/LPGhatguy/rojo/releases/tag/v0.4.5) (May 1, 2018)
+* Rojo messages are now prefixed with `Rojo: ` to make them stand out in the output more.
+* Fixed server to notice file changes *much* more quickly. (200ms vs 1000ms)
+* Server now lists name of project when starting up.
+* Rojo now throws an error if no project file is found. ([#63](https://github.com/LPGhatguy/rojo/issues/63))
+* Fixed multiple sync operations occuring at the same time. ([#61](https://github.com/LPGhatguy/rojo/issues/61))
+* Partitions targeting files directly now work as expected. ([#57](https://github.com/LPGhatguy/rojo/issues/57))
+
+## [0.4.4](https://github.com/LPGhatguy/rojo/releases/tag/v0.4.4) (April 7, 2018)
+* Fix small regression introduced in 0.4.3
+
+## [0.4.3](https://github.com/LPGhatguy/rojo/releases/tag/v0.4.3) (April 7, 2018)
+* Plugin now automatically selects `HttpService` if it determines that HTTP isn't enabled ([#58](https://github.com/LPGhatguy/rojo/pull/58))
+* Plugin now has much more robust handling and will wipe all state when the server changes.
+    * This should fix issues that would otherwise be solved by restarting Roblox Studio.
+
+## [0.4.2](https://github.com/LPGhatguy/rojo/releases/tag/v0.4.2) (April 4, 2018)
+* Fixed final case of duplicated instance insertion, caused by reconciled instances not being inserted into `RouteMap`.
+    * The reconciler is still not a perfect solution, especially if script instances get moved around without being destroyed. I don't think this can be fixed before a big refactor.
+
+## [0.4.1](https://github.com/LPGhatguy/rojo/releases/tag/v0.4.1) (April 1, 2018)
+* Merged plugin repository into main Rojo repository for easier tracking.
+* Improved `RouteMap` object tracking; this should fix some cases of duplicated instances being synced into the tree.
+
+## [0.4.0](https://github.com/LPGhatguy/rojo/releases/tag/v0.4.0) (March 27, 2018)
+* Protocol version 1, which shifts more responsibility onto the server
+    * This is a **major breaking** change!
+    * The server now has a content of 'filter plugins', which transform data at various stages in the pipeline
+    * The server now exposes Roblox instance objects instead of file contents, which lines up with how `rojo pack` will work, and paves the way for more robust syncing.
+* Added `*.model.json` files, which let you embed small Roblox objects into your Rojo tree.
+* Improved error messages in some cases ([#46](https://github.com/LPGhatguy/rojo/issues/46))
+
+## [0.3.2](https://github.com/LPGhatguy/rojo/releases/tag/v0.3.2) (December 20, 2017)
+* Fixed `rojo serve` failing to correctly construct an absolute root path when passed as an argument
+* Fixed intense CPU usage when running `rojo serve`
+
+## [0.3.1](https://github.com/LPGhatguy/rojo/releases/tag/v0.3.1) (December 14, 2017)
+* Improved error reporting when invalid JSON is found in a `rojo.json` project
+    * These messages are passed on from Serde
+
+## [0.3.0](https://github.com/LPGhatguy/rojo/releases/tag/v0.3.0) (December 12, 2017)
+* Factored out the plugin into a separate repository
+* Fixed server when using a file as a partition
+    * Previously, trailing slashes were put on the end of a partition even if the read request was an empty string. This broke file reading on Windows when a partition pointed to a file instead of a directory!
+* Started running automatic tests on Travis CI (#9)
+
+## [0.2.3](https://github.com/LPGhatguy/rojo/releases/tag/v0.2.3) (December 4, 2017)
+* Plugin only release
+* Tightened `init` file rules to only match script files
+    * Previously, Rojo would sometimes pick up the wrong file when syncing
+
+## [0.2.2](https://github.com/LPGhatguy/rojo/releases/tag/v0.2.2) (December 1, 2017)
+* Plugin only release
+* Fixed broken reconciliation behavior with `init` files
+
+## [0.2.1](https://github.com/LPGhatguy/rojo/releases/tag/v0.2.1) (December 1, 2017)
+* Plugin only release
+* Changes default port to 8000
+
+## [0.2.0](https://github.com/LPGhatguy/rojo/releases/tag/v0.2.0) (December 1, 2017)
+* Support for `init.lua` like rbxfs and rbxpacker
+* More robust syncing with a new reconciler
+
+## [0.1.0](https://github.com/LPGhatguy/rojo/releases/tag/v0.1.0) (November 29, 2017)
+* Initial release, functionally very similar to [rbxfs](https://github.com/LPGhatguy/rbxfs)

CHANGES.md

@@ -1,11 +0,0 @@
-# Rojo Change Log
-
-## Current Master
-* *No changes*
-
-## 0.2.0
-* Support for `init.lua` like rbxfs and rbxpacker
-* More robust syncing with a new reconciler
-
-## 0.1.0
-* Initial release, functionally very similar to [rbxfs](https://github.com/LPGhatguy/rbxfs)

Cargo.toml

@@ -1,20 +1,5 @@
-[package]
-name = "rojo"
-version = "0.2.0"
-authors = ["Lucien Greathouse <me@lpghatguy.com>"]
-description = "A tool to create robust Roblox projects"
-license = "MIT"
-repository = "https://github.com/LPGhatguy/rojo"
-
-[[bin]]
-name = "rojo"
-path = "src/bin.rs"
-
-[dependencies]
-clap = "2.27.1"
-rouille = "1.0"
-serde = "1.0"
-serde_derive = "1.0"
-serde_json = "1.0"
-notify = "4.0.0"
-rand = "0.3"
+[workspace]
+members = [
+	"server",
+	"rojo-e2e",
+]

LICENSE.md

@@ -1,9 +0,0 @@
-The MIT License (MIT)
-
-Copyright (c) 2017 Lucien Greathouse
-
-Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

LICENSE.txt

@@ -0,0 +1,373 @@
+Mozilla Public License Version 2.0
+==================================
+
+1. Definitions
+--------------
+
+1.1. "Contributor"
+    means each individual or legal entity that creates, contributes to
+    the creation of, or owns Covered Software.
+
+1.2. "Contributor Version"
+    means the combination of the Contributions of others (if any) used
+    by a Contributor and that particular Contributor's Contribution.
+
+1.3. "Contribution"
+    means Covered Software of a particular Contributor.
+
+1.4. "Covered Software"
+    means Source Code Form to which the initial Contributor has attached
+    the notice in Exhibit A, the Executable Form of such Source Code
+    Form, and Modifications of such Source Code Form, in each case
+    including portions thereof.
+
+1.5. "Incompatible With Secondary Licenses"
+    means
+
+    (a) that the initial Contributor has attached the notice described
+        in Exhibit B to the Covered Software; or
+
+    (b) that the Covered Software was made available under the terms of
+        version 1.1 or earlier of the License, but not also under the
+        terms of a Secondary License.
+
+1.6. "Executable Form"
+    means any form of the work other than Source Code Form.
+
+1.7. "Larger Work"
+    means a work that combines Covered Software with other material, in
+    a separate file or files, that is not Covered Software.
+
+1.8. "License"
+    means this document.
+
+1.9. "Licensable"
+    means having the right to grant, to the maximum extent possible,
+    whether at the time of the initial grant or subsequently, any and
+    all of the rights conveyed by this License.
+
+1.10. "Modifications"
+    means any of the following:
+
+    (a) any file in Source Code Form that results from an addition to,
+        deletion from, or modification of the contents of Covered
+        Software; or
+
+    (b) any new file in Source Code Form that contains any Covered
+        Software.
+
+1.11. "Patent Claims" of a Contributor
+    means any patent claim(s), including without limitation, method,
+    process, and apparatus claims, in any patent Licensable by such
+    Contributor that would be infringed, but for the grant of the
+    License, by the making, using, selling, offering for sale, having
+    made, import, or transfer of either its Contributions or its
+    Contributor Version.
+
+1.12. "Secondary License"
+    means either the GNU General Public License, Version 2.0, the GNU
+    Lesser General Public License, Version 2.1, the GNU Affero General
+    Public License, Version 3.0, or any later versions of those
+    licenses.
+
+1.13. "Source Code Form"
+    means the form of the work preferred for making modifications.
+
+1.14. "You" (or "Your")
+    means an individual or a legal entity exercising rights under this
+    License. For legal entities, "You" includes any entity that
+    controls, is controlled by, or is under common control with You. For
+    purposes of this definition, "control" means (a) the power, direct
+    or indirect, to cause the direction or management of such entity,
+    whether by contract or otherwise, or (b) ownership of more than
+    fifty percent (50%) of the outstanding shares or beneficial
+    ownership of such entity.
+
+2. License Grants and Conditions
+--------------------------------
+
+2.1. Grants
+
+Each Contributor hereby grants You a world-wide, royalty-free,
+non-exclusive license:
+
+(a) under intellectual property rights (other than patent or trademark)
+    Licensable by such Contributor to use, reproduce, make available,
+    modify, display, perform, distribute, and otherwise exploit its
+    Contributions, either on an unmodified basis, with Modifications, or
+    as part of a Larger Work; and
+
+(b) under Patent Claims of such Contributor to make, use, sell, offer
+    for sale, have made, import, and otherwise transfer either its
+    Contributions or its Contributor Version.
+
+2.2. Effective Date
+
+The licenses granted in Section 2.1 with respect to any Contribution
+become effective for each Contribution on the date the Contributor first
+distributes such Contribution.
+
+2.3. Limitations on Grant Scope
+
+The licenses granted in this Section 2 are the only rights granted under
+this License. No additional rights or licenses will be implied from the
+distribution or licensing of Covered Software under this License.
+Notwithstanding Section 2.1(b) above, no patent license is granted by a
+Contributor:
+
+(a) for any code that a Contributor has removed from Covered Software;
+    or
+
+(b) for infringements caused by: (i) Your and any other third party's
+    modifications of Covered Software, or (ii) the combination of its
+    Contributions with other software (except as part of its Contributor
+    Version); or
+
+(c) under Patent Claims infringed by Covered Software in the absence of
+    its Contributions.
+
+This License does not grant any rights in the trademarks, service marks,
+or logos of any Contributor (except as may be necessary to comply with
+the notice requirements in Section 3.4).
+
+2.4. Subsequent Licenses
+
+No Contributor makes additional grants as a result of Your choice to
+distribute the Covered Software under a subsequent version of this
+License (see Section 10.2) or under the terms of a Secondary License (if
+permitted under the terms of Section 3.3).
+
+2.5. Representation
+
+Each Contributor represents that the Contributor believes its
+Contributions are its original creation(s) or it has sufficient rights
+to grant the rights to its Contributions conveyed by this License.
+
+2.6. Fair Use
+
+This License is not intended to limit any rights You have under
+applicable copyright doctrines of fair use, fair dealing, or other
+equivalents.
+
+2.7. Conditions
+
+Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted
+in Section 2.1.
+
+3. Responsibilities
+-------------------
+
+3.1. Distribution of Source Form
+
+All distribution of Covered Software in Source Code Form, including any
+Modifications that You create or to which You contribute, must be under
+the terms of this License. You must inform recipients that the Source
+Code Form of the Covered Software is governed by the terms of this
+License, and how they can obtain a copy of this License. You may not
+attempt to alter or restrict the recipients' rights in the Source Code
+Form.
+
+3.2. Distribution of Executable Form
+
+If You distribute Covered Software in Executable Form then:
+
+(a) such Covered Software must also be made available in Source Code
+    Form, as described in Section 3.1, and You must inform recipients of
+    the Executable Form how they can obtain a copy of such Source Code
+    Form by reasonable means in a timely manner, at a charge no more
+    than the cost of distribution to the recipient; and
+
+(b) You may distribute such Executable Form under the terms of this
+    License, or sublicense it under different terms, provided that the
+    license for the Executable Form does not attempt to limit or alter
+    the recipients' rights in the Source Code Form under this License.
+
+3.3. Distribution of a Larger Work
+
+You may create and distribute a Larger Work under terms of Your choice,
+provided that You also comply with the requirements of this License for
+the Covered Software. If the Larger Work is a combination of Covered
+Software with a work governed by one or more Secondary Licenses, and the
+Covered Software is not Incompatible With Secondary Licenses, this
+License permits You to additionally distribute such Covered Software
+under the terms of such Secondary License(s), so that the recipient of
+the Larger Work may, at their option, further distribute the Covered
+Software under the terms of either this License or such Secondary
+License(s).
+
+3.4. Notices
+
+You may not remove or alter the substance of any license notices
+(including copyright notices, patent notices, disclaimers of warranty,
+or limitations of liability) contained within the Source Code Form of
+the Covered Software, except that You may alter any license notices to
+the extent required to remedy known factual inaccuracies.
+
+3.5. Application of Additional Terms
+
+You may choose to offer, and to charge a fee for, warranty, support,
+indemnity or liability obligations to one or more recipients of Covered
+Software. However, You may do so only on Your own behalf, and not on
+behalf of any Contributor. You must make it absolutely clear that any
+such warranty, support, indemnity, or liability obligation is offered by
+You alone, and You hereby agree to indemnify every Contributor for any
+liability incurred by such Contributor as a result of warranty, support,
+indemnity or liability terms You offer. You may include additional
+disclaimers of warranty and limitations of liability specific to any
+jurisdiction.
+
+4. Inability to Comply Due to Statute or Regulation
+---------------------------------------------------
+
+If it is impossible for You to comply with any of the terms of this
+License with respect to some or all of the Covered Software due to
+statute, judicial order, or regulation then You must: (a) comply with
+the terms of this License to the maximum extent possible; and (b)
+describe the limitations and the code they affect. Such description must
+be placed in a text file included with all distributions of the Covered
+Software under this License. Except to the extent prohibited by statute
+or regulation, such description must be sufficiently detailed for a
+recipient of ordinary skill to be able to understand it.
+
+5. Termination
+--------------
+
+5.1. The rights granted under this License will terminate automatically
+if You fail to comply with any of its terms. However, if You become
+compliant, then the rights granted under this License from a particular
+Contributor are reinstated (a) provisionally, unless and until such
+Contributor explicitly and finally terminates Your grants, and (b) on an
+ongoing basis, if such Contributor fails to notify You of the
+non-compliance by some reasonable means prior to 60 days after You have
+come back into compliance. Moreover, Your grants from a particular
+Contributor are reinstated on an ongoing basis if such Contributor
+notifies You of the non-compliance by some reasonable means, this is the
+first time You have received notice of non-compliance with this License
+from such Contributor, and You become compliant prior to 30 days after
+Your receipt of the notice.
+
+5.2. If You initiate litigation against any entity by asserting a patent
+infringement claim (excluding declaratory judgment actions,
+counter-claims, and cross-claims) alleging that a Contributor Version
+directly or indirectly infringes any patent, then the rights granted to
+You by any and all Contributors for the Covered Software under Section
+2.1 of this License shall terminate.
+
+5.3. In the event of termination under Sections 5.1 or 5.2 above, all
+end user license agreements (excluding distributors and resellers) which
+have been validly granted by You or Your distributors under this License
+prior to termination shall survive termination.
+
+************************************************************************
+*                                                                      *
+*  6. Disclaimer of Warranty                                           *
+*  -------------------------                                           *
+*                                                                      *
+*  Covered Software is provided under this License on an "as is"       *
+*  basis, without warranty of any kind, either expressed, implied, or  *
+*  statutory, including, without limitation, warranties that the       *
+*  Covered Software is free of defects, merchantable, fit for a        *
+*  particular purpose or non-infringing. The entire risk as to the     *
+*  quality and performance of the Covered Software is with You.        *
+*  Should any Covered Software prove defective in any respect, You     *
+*  (not any Contributor) assume the cost of any necessary servicing,   *
+*  repair, or correction. This disclaimer of warranty constitutes an   *
+*  essential part of this License. No use of any Covered Software is   *
+*  authorized under this License except under this disclaimer.         *
+*                                                                      *
+************************************************************************
+
+************************************************************************
+*                                                                      *
+*  7. Limitation of Liability                                          *
+*  --------------------------                                          *
+*                                                                      *
+*  Under no circumstances and under no legal theory, whether tort      *
+*  (including negligence), contract, or otherwise, shall any           *
+*  Contributor, or anyone who distributes Covered Software as          *
+*  permitted above, be liable to You for any direct, indirect,         *
+*  special, incidental, or consequential damages of any character      *
+*  including, without limitation, damages for lost profits, loss of    *
+*  goodwill, work stoppage, computer failure or malfunction, or any    *
+*  and all other commercial damages or losses, even if such party      *
+*  shall have been informed of the possibility of such damages. This   *
+*  limitation of liability shall not apply to liability for death or   *
+*  personal injury resulting from such party's negligence to the       *
+*  extent applicable law prohibits such limitation. Some               *
+*  jurisdictions do not allow the exclusion or limitation of           *
+*  incidental or consequential damages, so this exclusion and          *
+*  limitation may not apply to You.                                    *
+*                                                                      *
+************************************************************************
+
+8. Litigation
+-------------
+
+Any litigation relating to this License may be brought only in the
+courts of a jurisdiction where the defendant maintains its principal
+place of business and such litigation shall be governed by laws of that
+jurisdiction, without reference to its conflict-of-law provisions.
+Nothing in this Section shall prevent a party's ability to bring
+cross-claims or counter-claims.
+
+9. Miscellaneous
+----------------
+
+This License represents the complete agreement concerning the subject
+matter hereof. If any provision of this License is held to be
+unenforceable, such provision shall be reformed only to the extent
+necessary to make it enforceable. Any law or regulation which provides
+that the language of a contract shall be construed against the drafter
+shall not be used to construe this License against a Contributor.
+
+10. Versions of the License
+---------------------------
+
+10.1. New Versions
+
+Mozilla Foundation is the license steward. Except as provided in Section
+10.3, no one other than the license steward has the right to modify or
+publish new versions of this License. Each version will be given a
+distinguishing version number.
+
+10.2. Effect of New Versions
+
+You may distribute the Covered Software under the terms of the version
+of the License under which You originally received the Covered Software,
+or under the terms of any subsequent version published by the license
+steward.
+
+10.3. Modified Versions
+
+If you create software not governed by this License, and you want to
+create a new license for such software, you may create and use a
+modified version of this License if you rename the license and remove
+any references to the name of the license steward (except to note that
+such modified license differs from this License).
+
+10.4. Distributing Source Code Form that is Incompatible With Secondary
+Licenses
+
+If You choose to distribute Source Code Form that is Incompatible With
+Secondary Licenses under the terms of this version of the License, the
+notice described in Exhibit B of this License must be attached.
+
+Exhibit A - Source Code Form License Notice
+-------------------------------------------
+
+  This Source Code Form is subject to the terms of the Mozilla Public
+  License, v. 2.0. If a copy of the MPL was not distributed with this
+  file, You can obtain one at https://mozilla.org/MPL/2.0/.
+
+If it is not possible or desirable to put the notice in a particular
+file, then You may include the notice in a location (such as a LICENSE
+file in a relevant directory) where a recipient would be likely to look
+for such a notice.
+
+You may add additional accurate notices of copyright ownership.
+
+Exhibit B - "Incompatible With Secondary Licenses" Notice
+---------------------------------------------------------
+
+  This Source Code Form is "Incompatible With Secondary Licenses", as
+  defined by the Mozilla Public License, v. 2.0.

README.md

@@ -1,73 +1,68 @@
-<h1 align="center">Rojo</h1>
 <div align="center">
-	<a href="https://travis-ci.org/LPGhatguy/Rojo">
-		<img src="https://api.travis-ci.org/LPGhatguy/Rojo.svg?branch=master" alt="Travis-CI Build Status" />
-	</a>
-	<a href="#">
-		<img src="https://img.shields.io/badge/docs-soon-red.svg" alt="Documentation" />
-	</a>
+    <img src="assets/rojo-logo.png" alt="Rojo" height="217" />
 </div>
 
 <div>&nbsp;</div>
 
-**EARLY DEVELOPMENT, USE WITH CARE**
+<div align="center">
+    <a href="https://travis-ci.org/LPGhatguy/rojo">
+        <img src="https://api.travis-ci.org/LPGhatguy/rojo.svg?branch=master" alt="Travis-CI Build Status" />
+    </a>
+    <a href="https://crates.io/crates/rojo">
+        <img src="https://img.shields.io/crates/v/rojo.svg?label=version" alt="Latest server version" />
+    </a>
+    <a href="https://lpghatguy.github.io/rojo/0.4.x">
+        <img src="https://img.shields.io/badge/docs-0.4.x-brightgreen.svg" alt="Rojo Documentation" />
+    </a>
+    <a href="https://lpghatguy.github.io/rojo/0.5.x">
+        <img src="https://img.shields.io/badge/docs-0.5.x-brightgreen.svg" alt="Rojo Documentation" />
+    </a>
+</div>
 
-Rojo is a flexible multi-tool designed for creating robust Roblox projects.
+<hr />
 
-It's designed for power users who want to use the best tools available for building games, libraries, and plugins.
+**Rojo** is a flexible multi-tool designed for creating robust Roblox projects.
 
-It has a number of desirable features *right now*:
+It lets Roblox developers use industry-leading tools like Git and VS Code, and crucial utilities like Luacheck.
 
-* Work from the filesystem, in your favorite editor
-* Version your place, library, or plugin using Git or another VCS
+Rojo is designed for **power users** who want to use the **best tools available** for building games, libraries, and plugins.
+
+## Features
+Rojo lets you:
+
+* Work on scripts from the filesystem, in your favorite editor
+* Version your place, model, or plugin using Git or another VCS
+* Sync `rbxmx` and `rbxm` models into your game in real time
+* Package and deploy your project to Roblox.com from the command line
 
 Soon, Rojo will be able to:
 
-* Create installation scripts for libraries to be used in standalone places
-	* Similar to [rbxpacker](https://github.com/LPGhatguy/rbxpacker), another one of my projects
-* Add strongly-versioned dependencies to your project
+* Sync instances from Roblox Studio to the filesystem
+* Compile MoonScript and other custom things for your project
 
-## Installation
-Rojo has two components:
-* The binary, written in Rust
-* The [Roblox Studio plugin](https://www.roblox.com/library/1211549683/Rojo-v0-0-0), written in Lua
+## [Documentation](https://lpghatguy.github.io/rojo)
+You can also view the documentation by browsing the [docs](https://github.com/LPGhatguy/rojo/tree/master/docs) folder of the repository, but because it uses a number of Markdown extensions, it may not be very readable.
 
-To install the binary, there are two options:
-* Cargo, which requires you to have Rust installed
-* Pre-built binaries from the [the GitHub releases page](https://github.com/LPGhatguy/rojo/releases)
+## Inspiration and Alternatives
+There are lots of other tools that sync scripts into Roblox or provide other tools for working with Roblox places.
 
-### Cargo (Recommended)
-Make sure you have [Rust 1.21 or newer](https://www.rust-lang.org/) installed.
+Here are a few, if you're looking for alternatives or supplements to Rojo:
 
-Install Rojo using:
+* [rbxmk by Anaminus](https://github.com/anaminus/rbxmk)
+* [Rofresh by Osyris](https://github.com/osyrisrblx/rofresh)
+* [RbxRefresh by Osyris](https://github.com/osyrisrblx/RbxRefresh)
+* [Studio Bridge by Vocksel](https://github.com/vocksel/studio-bridge)
+* [Elixir by Vocksel](https://github.com/vocksel/elixir)
+* [RbxSync by evaera](https://github.com/evaera/RbxSync)
+* [CodeSync by MemoryPenguin](https://github.com/MemoryPenguin/CodeSync)
+* [rbx-exteditor by MemoryPenguin](https://github.com/MemoryPenguin/rbx-exteditor)
 
-```sh
-cargo install rojo
+If you use a plugin that _isn't_ Rojo for syncing code, open an issue and let me know why! I'd like Rojo to be the end-all tool so that people stop reinventing solutions to this problem.
 
-# Installed!
-rojo help
-```
+## Contributing
+Pull requests are welcome!
 
-### Pre-Built (Windows only)
-Download the latest binary from [the GitHub releases page](https://github.com/LPGhatguy/rojo/releases). Put it somewhere you can access it from a terminal!
-
-## Usage
-For more help, use `rojo help`.
-
-### New Project
-Just create a new folder and tell Rojo to initialize it!
-
-```sh
-mkdir my-new-project
-cd my-new-project
-
-rojo init
-```
-
-Rojo will create an empty project in the directory.
-
-### Migrating an Existing Roblox Project
-Coming soon!
+Rojo supports Rust 1.32 and newer. Any changes to the minimum required compiler version require a _minor_ version bump.
 
 ## License
-Rojo is available under the terms of the MIT license. See [LICENSE.md](LICENSE.md) for details.
+Rojo is available under the terms of the Mozilla Public License, Version 2.0. See [LICENSE.txt](LICENSE.txt) for details.

assets/kenney-ui-gray-sheet.xml

@@ -0,0 +1,41 @@
+<TextureAtlas imagePath="sheet.png">
+	<SubTexture name="grey_arrowDownGrey.png" x="78" y="498" width="15" height="10"/>
+	<SubTexture name="grey_arrowDownWhite.png" x="123" y="496" width="15" height="10"/>
+	<SubTexture name="grey_arrowUpGrey.png" x="108" y="498" width="15" height="10"/>
+	<SubTexture name="grey_arrowUpWhite.png" x="93" y="498" width="15" height="10"/>
+	<SubTexture name="grey_box.png" x="147" y="433" width="38" height="36"/>
+	<SubTexture name="grey_boxCheckmark.png" x="147" y="469" width="38" height="36"/>
+	<SubTexture name="grey_boxCross.png" x="185" y="433" width="38" height="36"/>
+	<SubTexture name="grey_boxTick.png" x="190" y="198" width="36" height="36"/>
+	<SubTexture name="grey_button00.png" x="0" y="143" width="190" height="45"/>
+	<SubTexture name="grey_button01.png" x="0" y="188" width="190" height="49"/>
+	<SubTexture name="grey_button02.png" x="0" y="98" width="190" height="45"/>
+	<SubTexture name="grey_button03.png" x="0" y="331" width="190" height="49"/>
+	<SubTexture name="grey_button04.png" x="0" y="286" width="190" height="45"/>
+	<SubTexture name="grey_button05.png" x="0" y="0" width="195" height="49"/>
+	<SubTexture name="grey_button06.png" x="0" y="49" width="191" height="49"/>
+	<SubTexture name="grey_button07.png" x="195" y="0" width="49" height="49"/>
+	<SubTexture name="grey_button08.png" x="240" y="49" width="49" height="49"/>
+	<SubTexture name="grey_button09.png" x="98" y="433" width="49" height="45"/>
+	<SubTexture name="grey_button10.png" x="191" y="49" width="49" height="49"/>
+	<SubTexture name="grey_button11.png" x="0" y="433" width="49" height="45"/>
+	<SubTexture name="grey_button12.png" x="244" y="0" width="49" height="49"/>
+	<SubTexture name="grey_button13.png" x="49" y="433" width="49" height="45"/>
+	<SubTexture name="grey_button14.png" x="0" y="384" width="190" height="49"/>
+	<SubTexture name="grey_button15.png" x="0" y="237" width="190" height="49"/>
+	<SubTexture name="grey_checkmarkGrey.png" x="99" y="478" width="21" height="20"/>
+	<SubTexture name="grey_checkmarkWhite.png" x="78" y="478" width="21" height="20"/>
+	<SubTexture name="grey_circle.png" x="185" y="469" width="36" height="36"/>
+	<SubTexture name="grey_crossGrey.png" x="120" y="478" width="18" height="18"/>
+	<SubTexture name="grey_crossWhite.png" x="190" y="318" width="18" height="18"/>
+	<SubTexture name="grey_panel.png" x="190" y="98" width="100" height="100"/>
+	<SubTexture name="grey_sliderDown.png" x="190" y="234" width="28" height="42"/>
+	<SubTexture name="grey_sliderEnd.png" x="138" y="478" width="8" height="10"/>
+	<SubTexture name="grey_sliderHorizontal.png" x="0" y="380" width="190" height="4"/>
+	<SubTexture name="grey_sliderLeft.png" x="0" y="478" width="39" height="31"/>
+	<SubTexture name="grey_sliderRight.png" x="39" y="478" width="39" height="31"/>
+	<SubTexture name="grey_sliderUp.png" x="190" y="276" width="28" height="42"/>
+	<SubTexture name="grey_sliderVertical.png" x="208" y="318" width="4" height="100"/>
+	<SubTexture name="grey_tickGrey.png" x="190" y="336" width="17" height="17"/>
+	<SubTexture name="grey_tickWhite.png" x="190" y="353" width="17" height="17"/>
+</TextureAtlas>

design.gv

@@ -0,0 +1,39 @@
+digraph G {
+	graph [
+		ranksep = "0.7",
+		nodesep = "1.0",
+	];
+	node [
+		fontname = "Hack",
+		shape = "record",
+	];
+
+	roblox_studio -> plugin [dir = "both"];
+	plugin -> web_server [style = "dashed", dir = "both"];
+
+	web_server -> session;
+
+	session -> rbx_session;
+	session -> fs_watcher;
+	session -> message_queue;
+
+	fs_watcher -> imfs [weight = "10"];
+	fs_watcher -> rbx_session [constraint = "false"];
+
+	imfs -> fs;
+
+	rbx_session -> imfs;
+	rbx_session -> middlewares [weight = "10"];
+	rbx_session -> message_queue [constraint = "false"];
+
+	plugin [label = "Studio Plugin"];
+	roblox_studio [label = "Roblox Studio"];
+	fs [label = "Filesystem"];
+	fs_watcher [label = "Filesystem Watcher"];
+	session [label = "Session"];
+	web_server [label = "Web API"];
+	imfs [label = "In-Memory Filesystem"];
+	rbx_session [label = "RbxSession"];
+	message_queue [label = "MessageQueue"];
+	middlewares [label = "Middlewares"];
+}

docs/creating-a-place.md

@@ -0,0 +1,68 @@
+[TOC]
+
+## Creating the Rojo Project
+
+To use Rojo to build a place, you'll need to create a new project file, which tells Rojo how your project is structured on-disk and in Roblox.
+
+Create a new folder, then run `rojo init` inside that folder to initialize an empty project.
+
+```sh
+mkdir my-new-project
+cd my-new-project
+
+rojo init
+```
+
+Rojo will make a small project file in your directory, named `default.project.json`. It'll make sure that any code in the directory `src` will get put into `ReplicatedStorage.Source`.
+
+Speaking of, let's make sure we create a directory named `src`, and maybe a Lua file inside of it:
+
+```sh
+mkdir src
+echo 'print("Hello, world!")' > src/hello.lua
+```
+
+## Building Your Place
+Now that we have a project, one thing we can do is build a Roblox place file for our project. This is a great way to get started with a project quickly with no fuss.
+
+All we have to do is call `rojo build`:
+
+```sh
+rojo build -o MyNewProject.rbxl
+```
+
+If you open `MyNewProject.rbxl` in Roblox Studio now, you should see a `Folder` containing a `ModuleScript` under `ReplicatedStorage`!
+
+!!! info
+    To generate an XML place file instead, like if you're checking the place file into version control, just use `rbxlx` as the extension on the output file instead.
+
+## Live-Syncing into Studio
+Building a place file is great for the initial build, but for actively working on your place, you'll want something quicker.
+
+In Roblox Studio, make sure the Rojo plugin is installed. If you need it, check out [the installation guide](installation) to learn how to install it.
+
+To expose your project to the plugin, you'll need to _serve_ it from the command line:
+
+```sh
+rojo serve
+```
+
+This will start up a web server that tells Roblox Studio what instances are in your project and sends notifications if any of them change.
+
+Note the port number, then switch into Roblox Studio and press the Rojo **Connect** button in the plugins tab. Type in the port number, if necessary, and press **Start**.
+
+If everything went well, you should now be able to change files in the `src` directory and watch them sync into Roblox Studio in real time!
+
+## Uploading Your Place
+Aimed at teams that want serious levels of automation, Rojo can upload places to Roblox.com automatically.
+
+You'll need an existing place on Roblox.com as well as the `.ROBLOSECURITY` cookie of an account that has write access to that place.
+
+!!! warning
+    It's recommended that you set up a Roblox account dedicated to deploying your place instead of your personal account in case your security cookie is compromised.
+
+Generating and uploading your place file is as simple as:
+
+```sh
+rojo upload --asset_id [PLACE ID] --cookie "[SECURITY COOKIE]"
+```

docs/extra.css

@@ -0,0 +1,3 @@
+.md-typeset__table {
+  width: 100%;
+}

docs/images/sync-example-files.gv

@@ -0,0 +1,17 @@
+digraph "Sync Files" {
+	graph [
+	    ranksep = "0.7",
+	    nodesep = "0.5",
+	];
+	node [
+	    fontname = "monospace",
+	    shape = "record",
+	];
+
+	my_model [label = "MyModel"]
+	init_server [label = "init.server.lua"]
+	foo [label = "foo.lua"]
+
+	my_model -> init_server
+	my_model -> foo
+}

docs/images/sync-example-files.svg

@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN"
+ "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<!-- Generated by graphviz version 2.38.0 (20140413.2041)
+ -->
+<!-- Title: Sync Files Pages: 1 -->
+<svg width="258pt" height="132pt"
+ viewBox="0.00 0.00 258.00 132.00" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+<g id="graph0" class="graph" transform="scale(1 1) rotate(0) translate(4 128)">
+<title>Sync Files</title>
+<polygon fill="white" stroke="none" points="-4,4 -4,-128 254,-128 254,4 -4,4"/>
+<!-- my_model -->
+<g id="node1" class="node"><title>my_model</title>
+<polygon fill="none" stroke="black" points="104,-87.5 104,-123.5 178,-123.5 178,-87.5 104,-87.5"/>
+<text text-anchor="middle" x="141" y="-101.8" font-family="monospace" font-size="14.00">MyModel</text>
+</g>
+<!-- init_server -->
+<g id="node2" class="node"><title>init_server</title>
+<polygon fill="none" stroke="black" points="0,-0.5 0,-36.5 140,-36.5 140,-0.5 0,-0.5"/>
+<text text-anchor="middle" x="70" y="-14.8" font-family="monospace" font-size="14.00">init.server.lua</text>
+</g>
+<!-- my_model&#45;&gt;init_server -->
+<g id="edge1" class="edge"><title>my_model&#45;&gt;init_server</title>
+<path fill="none" stroke="black" d="M126.632,-87.299C116.335,-74.9713 102.308,-58.1787 90.7907,-44.3902"/>
+<polygon fill="black" stroke="black" points="93.4435,-42.1065 84.3465,-36.6754 88.0711,-46.594 93.4435,-42.1065"/>
+</g>
+<!-- foo -->
+<g id="node3" class="node"><title>foo</title>
+<polygon fill="none" stroke="black" points="176,-0.5 176,-36.5 250,-36.5 250,-0.5 176,-0.5"/>
+<text text-anchor="middle" x="213" y="-14.8" font-family="monospace" font-size="14.00">foo.lua</text>
+</g>
+<!-- my_model&#45;&gt;foo -->
+<g id="edge2" class="edge"><title>my_model&#45;&gt;foo</title>
+<path fill="none" stroke="black" d="M155.57,-87.299C166.013,-74.9713 180.237,-58.1787 191.917,-44.3902"/>
+<polygon fill="black" stroke="black" points="194.659,-46.5681 198.451,-36.6754 189.317,-42.0437 194.659,-46.5681"/>
+</g>
+</g>
+</svg>

docs/images/sync-example-instances.gv

@@ -0,0 +1,15 @@
+digraph "Sync Files" {
+	graph [
+	    ranksep = "0.7",
+	    nodesep = "0.5",
+	];
+	node [
+	    fontname = "monospace",
+	    shape = "record",
+	];
+
+	my_model [label = "MyModel (Script)"]
+	foo [label = "foo (ModuleScript)"]
+
+	my_model -> foo
+}

docs/images/sync-example-instances.svg

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN"
+ "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<!-- Generated by graphviz version 2.38.0 (20140413.2041)
+ -->
+<!-- Title: Sync Files Pages: 1 -->
+<svg width="173pt" height="132pt"
+ viewBox="0.00 0.00 173.00 132.00" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+<g id="graph0" class="graph" transform="scale(1 1) rotate(0) translate(4 128)">
+<title>Sync Files</title>
+<polygon fill="white" stroke="none" points="-4,4 -4,-128 169,-128 169,4 -4,4"/>
+<!-- my_model -->
+<g id="node1" class="node"><title>my_model</title>
+<polygon fill="none" stroke="black" points="8,-87.5 8,-123.5 157,-123.5 157,-87.5 8,-87.5"/>
+<text text-anchor="middle" x="82.5" y="-101.8" font-family="monospace" font-size="14.00">MyModel (Script)</text>
+</g>
+<!-- foo -->
+<g id="node2" class="node"><title>foo</title>
+<polygon fill="none" stroke="black" points="0,-0.5 0,-36.5 165,-36.5 165,-0.5 0,-0.5"/>
+<text text-anchor="middle" x="82.5" y="-14.8" font-family="monospace" font-size="14.00">foo (ModuleScript)</text>
+</g>
+<!-- my_model&#45;&gt;foo -->
+<g id="edge1" class="edge"><title>my_model&#45;&gt;foo</title>
+<path fill="none" stroke="black" d="M82.5,-87.299C82.5,-75.6626 82.5,-60.0479 82.5,-46.7368"/>
+<polygon fill="black" stroke="black" points="86.0001,-46.6754 82.5,-36.6754 79.0001,-46.6755 86.0001,-46.6754"/>
+</g>
+</g>
+</svg>

docs/images/sync-example-json-model.gv

@@ -0,0 +1,17 @@
+digraph "Sync Files" {
+	graph [
+	    ranksep = "0.7",
+	    nodesep = "0.5",
+	];
+	node [
+	    fontname = "monospace",
+	    shape = "record",
+	];
+
+	model [label = "My Cool Model (Folder)"]
+	root_part [label = "RootPart (Part)"]
+	send_money [label = "SendMoney (RemoteEvent)"]
+
+	model -> root_part
+	model -> send_money
+}

docs/images/sync-example-json-model.svg

@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN"
+ "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<!-- Generated by graphviz version 2.38.0 (20140413.2041)
+ -->
+<!-- Title: Sync Files Pages: 1 -->
+<svg width="390pt" height="132pt"
+ viewBox="0.00 0.00 390.00 132.00" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+<g id="graph0" class="graph" transform="scale(1 1) rotate(0) translate(4 128)">
+<title>Sync Files</title>
+<polygon fill="white" stroke="none" points="-4,4 -4,-128 386,-128 386,4 -4,4"/>
+<!-- model -->
+<g id="node1" class="node"><title>model</title>
+<polygon fill="none" stroke="black" points="75,-87.5 75,-123.5 273,-123.5 273,-87.5 75,-87.5"/>
+<text text-anchor="middle" x="174" y="-101.8" font-family="monospace" font-size="14.00">My Cool Model (Folder)</text>
+</g>
+<!-- root_part -->
+<g id="node2" class="node"><title>root_part</title>
+<polygon fill="none" stroke="black" points="0,-0.5 0,-36.5 140,-36.5 140,-0.5 0,-0.5"/>
+<text text-anchor="middle" x="70" y="-14.8" font-family="monospace" font-size="14.00">RootPart (Part)</text>
+</g>
+<!-- model&#45;&gt;root_part -->
+<g id="edge1" class="edge"><title>model&#45;&gt;root_part</title>
+<path fill="none" stroke="black" d="M152.954,-87.299C137.448,-74.6257 116.168,-57.2335 99.0438,-43.2377"/>
+<polygon fill="black" stroke="black" points="100.972,-40.2938 91.0147,-36.6754 96.5426,-45.7138 100.972,-40.2938"/>
+</g>
+<!-- send_money -->
+<g id="node3" class="node"><title>send_money</title>
+<polygon fill="none" stroke="black" points="176,-0.5 176,-36.5 382,-36.5 382,-0.5 176,-0.5"/>
+<text text-anchor="middle" x="279" y="-14.8" font-family="monospace" font-size="14.00">SendMoney (RemoteEvent)</text>
+</g>
+<!-- model&#45;&gt;send_money -->
+<g id="edge2" class="edge"><title>model&#45;&gt;send_money</title>
+<path fill="none" stroke="black" d="M195.248,-87.299C210.904,-74.6257 232.388,-57.2335 249.677,-43.2377"/>
+<polygon fill="black" stroke="black" points="252.213,-45.6878 257.783,-36.6754 247.809,-40.2471 252.213,-45.6878"/>
+</g>
+</g>
+</svg>

docs/index.md

@@ -0,0 +1,11 @@
+This is the documentation home for Rojo 0.5.x.
+
+Available versions of these docs:
+
+* [Latest version (currently 0.5.x)](https://lpghatguy.github.io/rojo)
+* [0.5.x](https://lpghatguy.github.io/rojo/0.5.x)
+* [0.4.x](https://lpghatguy.github.io/rojo/0.4.x)
+
+**Rojo** is a flexible multi-tool designed for creating robust Roblox projects.
+
+This documentation is a continual work in progress. If you find any issues, please file an issue on [Rojo's issue tracker](https://github.com/LPGhatguy/rojo/issues)!

docs/installation.md

@@ -0,0 +1,45 @@
+[TOC]
+
+## Overview
+
+Rojo has two components:
+
+* The command line interface (CLI)
+* The Roblox Studio plugin
+
+!!! info
+    It's important that your installed version of the plugin and CLI are compatible.
+
+    The plugin will show errors in the Roblox Studio output window if there is a version mismatch.
+
+## Installing the CLI
+
+### Installing from GitHub
+If you're on Windows, there are pre-built binaries available from Rojo's [GitHub Releases page](https://github.com/LPGhatguy/rojo/releases).
+
+The Rojo CLI must be run from the command line, like Terminal.app on MacOS or `cmd.exe` on Windows. It's recommended that you put the Rojo CLI executable on your `PATH` to make this easier.
+
+### Installing from Cargo
+If you have Rust installed, the easiest way to get Rojo is with Cargo!
+
+To install the latest 0.5.0 alpha, use:
+
+```sh
+cargo install rojo --version 0.5.0-alpha.9
+```
+
+## Installing the Plugin
+
+### Installing from GitHub
+The Rojo Roblox Studio plugin is available available from Rojo's [GitHub Releases page](https://github.com/LPGhatguy/rojo/releases).
+
+Download the attached `rbxm` file and put it into your Roblox Studio plugins folder. You can find that folder by pressing **Plugins Folder** from your Plugins toolbar in Roblox Studio:
+
+!['Plugins Folder' button in Roblox Studio](images/plugins-folder-in-studio.png)
+{: align="center" }
+
+### Installing from Roblox.com
+Visit [Rojo's Roblox.com Plugin page](https://www.roblox.com/library/1997686364/Rojo-0-5-0-alpha-3) in Roblox Studio and press **Install**.
+
+## Visual Studio Code Extension
+If you use Visual Studio Code on Windows, you can install [Evaera's unofficial Rojo extension](https://marketplace.visualstudio.com/items?itemName=evaera.vscode-rojo), which will install both halves of Rojo for you. It even has a nifty UI to add partitions and start/stop the Rojo server!

docs/internals/overview.md

@@ -0,0 +1,45 @@
+This document aims to give a general overview of how Rojo works. It's intended for people who want to contribute to the project as well as anyone who's just curious how the tool works!
+
+[TOC]
+
+## CLI
+
+### RbxTree
+Rojo uses a library named [`rbx_tree`](https://github.com/LPGhatguy/rbx-tree) as its implementation of the Roblox DOM. It serves as a common format for serialization to all the formats Rojo supports!
+
+Rojo uses two related libraries to deserialize instances from Roblox's file formats, `rbx_xml` and `rbx_binary`.
+
+### In-Memory Filesystem (IMFS)
+Relevant source files:
+
+* [`server/src/imfs.rs`](https://github.com/LPGhatguy/rojo/blob/master/server/src/imfs.rs)
+* [`server/src/fs_watcher.rs`](https://github.com/LPGhatguy/rojo/blob/master/server/src/fs_watcher.rs)
+
+Rojo keeps an in-memory copy of all files that it needs reasons about. This enables taking fast, stateless, tear-tree snapshots of files to turn them into instances.
+
+Keeping an in-memory copy of file contents will also enable Rojo to debounce changes that are caused by Rojo itself. This'll happen when two-way sync finally happens.
+
+### Snapshot Reconciler
+Relevant source files:
+
+* [`server/src/snapshot_reconciler.rs`](https://github.com/LPGhatguy/rojo/blob/master/server/src/snapshot_reconciler.rs)
+* [`server/src/rbx_snapshot.rs`](https://github.com/LPGhatguy/rojo/blob/master/server/src/rbx_snapshot.rs)
+* [`server/src/rbx_session.rs`](https://github.com/LPGhatguy/rojo/blob/master/server/src/rbx_session.rs)
+
+To simplify incremental updates of instances, Rojo generates lightweight snapshots describing how files map to instances. This means that Rojo can treat file change events similarly to damage painting as opposed to trying to surgically update the correct instances.
+
+This approach reduces the number of desynchronization bugs, reduces the complexity of important pieces of the codebase, and makes writing plugins a lot easier.
+
+### HTTP API
+Relevant source files:
+
+* [`server/src/web.rs`](https://github.com/LPGhatguy/rojo/blob/master/server/src/web.rs)
+
+The Rojo live-sync server and Roblox Studio plugin communicate via HTTP.
+
+Requests sent from the plugin to the server are regular HTTP requests.
+
+Messages sent from the server to the plugin are delivered via HTTP long-polling. This is an approach that uses long-lived HTTP requests that restart on timeout. It's largely been replaced by WebSockets, but Roblox doesn't have support for them.
+
+## Roblox Studio Plugin
+TODO

docs/migrating-to-epiphany.md

@@ -0,0 +1,58 @@
+Rojo underwent a large refactor during most of 2018 to enable a bunch of new features and lay groundwork for lots more in 2019. As such, Rojo **0.5.x** projects are not compatible with Rojo **0.4.x** projects.
+
+[TOC]
+
+## Supporting Both 0.4.x and 0.5.x
+Rojo 0.5.x uses a different name for its project format. While 0.4.x used `rojo.json`, 0.5.x uses `default.project.json`, which allows them to coexist.
+
+If you aren't sure about upgrading or want to upgrade gradually, it's possible to keep both files in the same project without causing problems.
+
+## Upgrading Your Project File
+Project files in 0.5.x are more explicit and flexible than they were in 0.4.x. Project files can now describe models and plugins in addition to places.
+
+This new project file format also guards against two of the biggest pitfalls when writing a config file:
+
+* Using a service as a partition target directly, which often wiped away extra instances
+* Defining two partitions that overlapped, which made Rojo act unpredictably
+
+The biggest change is that the `partitions` field has been replaced with a new field, `tree`, that describes the entire hierarchy of your project from the top-down.
+
+A project for 0.4.x that syncs from the `src` directory into `ReplicatedStorage.Source` would look like this:
+
+```json
+{
+    "name": "Rojo 0.4.x Example",
+    "partitions": {
+        "path": "src",
+        "target": "ReplicatedStorage.Source"
+    }
+}
+```
+
+In 0.5.x, the project format is more explicit:
+
+```json
+{
+    "name": "Rojo 0.5.x Example",
+    "tree": {
+        "$className": "DataModel",
+        "ReplicatedStorage": {
+            "$className": "ReplicatedStorage",
+            "Source": {
+                "$path": "src"
+            }
+        }
+    }
+}
+```
+
+For each object in the tree, we define *metadata* and *children*.
+
+Metadata begins with a dollar sign (`$`), like `$className`. This is so that children and metadata can coexist without creating too many nested layers.
+
+All other values are considered children, where the key is the instance's name, and the value is an object, repeating the process.
+
+## Migrating Unknown Files
+If you used Rojo to sync in files as `StringValue` objects, you'll need to make sure those files end with the `txt` extension to preserve this in Rojo 0.5.x.
+
+Unknown files are now ignored in Rojo instead of being converted to `StringValue` objects.

docs/project-format.md

@@ -0,0 +1,100 @@
+[TOC]
+
+## Project File
+
+Rojo projects are JSON files that have the `.project.json` extension. They have these fields:
+
+* `name`: A string indicating the name of the project.
+    * This is only used for diagnostics.
+* `tree`: An [Instance Description](#instance-description) describing the root instance of the project.
+
+## Instance Description
+Instance Descriptions correspond one-to-one with the actual Roblox Instances in the project. They can be specified directly in the project file or be pulled from the filesystem.
+
+* `$className`: The ClassName of the Instance being described.
+    * Optional if `$path` is specified.
+* `$path`: The path on the filesystem to pull files from into the project.
+    * Optional if `$className` is specified.
+    * Paths are relative to the folder containing the project file.
+* `$properties`: Properties to apply to the instance. Values should be [Instance Property Values](#instance-property-value).
+    * Optional
+* `$ignoreUnknownInstances`: Whether instances that Rojo doesn't know about should be deleted.
+    * Optional
+    * Default is `false` if `$path` is specified, otherwise `true`.
+
+All other fields in an Instance Description are turned into instances whose name is the key. These values should also be Instance Descriptions!
+
+Instance Descriptions are fairly verbose and strict. In the future, it'll be possible for Rojo to infer class names for known services like `Workspace`.
+
+## Instance Property Value
+The shape of Instance Property Values is defined by the [rbx_tree](https://github.com/LPGhatguy/rbx-tree) library, so it uses slightly different conventions than the rest of Rojo.
+
+Each value should be an object with the following required fields:
+
+* `Type`: The type of property to represent.
+    * [Supported types can be found here](https://github.com/LPGhatguy/rbx-tree#property-type-coverage).
+* `Value`: The value of the property.
+    * The shape of this field depends on which property type is being used. `Vector3` and `Color3` values are both represented as a list of numbers, for example.
+
+Instance Property Values are intentionally very strict. Rojo will eventually be able to infer types for you!
+
+## Example Projects
+This project bundles up everything in the `src` directory. It'd be suitable for making a plugin or model:
+
+```json
+{
+    "name": "AwesomeLibrary",
+    "tree": {
+        "$path": "src"
+    }
+}
+```
+
+This project describes the layout you might use if you were making the next hit simulator game, *Sisyphus Simulator*:
+
+```json
+{
+    "name": "Sisyphus Simulator",
+    "tree": {
+        "$className": "DataModel",
+
+        "HttpService": {
+            "$className": "HttpService",
+            "$properties": {
+                "HttpEnabled": {
+                    "Type": "Bool",
+                    "Value": true
+                }
+            }
+        },
+
+        "ReplicatedStorage": {
+            "$className": "ReplicatedStorage",
+            "$path": "src/ReplicatedStorage"
+        },
+
+        "StarterPlayer": {
+            "$className": "StarterPlayer",
+
+            "StarterPlayerScripts": {
+                "$className": "StarterPlayerScripts",
+                "$path": "src/StarterPlayerScripts"
+            }
+        },
+
+        "Workspace": {
+            "$className": "Workspace",
+            "$properties": {
+                "Gravity": {
+                    "Type": "Float32",
+                    "Value": 67.3
+                }
+            },
+
+            "Terrain": {
+                "$path": "Terrain.rbxm"
+            }
+        }
+    }
+}
+```

docs/requirements.txt

@@ -0,0 +1,3 @@
+mkdocs
+mkdocs-material
+pymdown-extensions

docs/sync-details.md

@@ -0,0 +1,91 @@
+This page aims to describe how Rojo turns files on the filesystem into Roblox objects.
+
+[TOC]
+
+## Overview
+| File Name      | Instance Type       |
+| -------------- | ------------------- |
+| any directory  | `Folder`            |
+| `*.server.lua` | `Script`            |
+| `*.client.lua` | `LocalScript`       |
+| `*.lua`        | `ModuleScript`      |
+| `*.csv`        | `LocalizationTable` |
+| `*.txt`        | `StringValue`       |
+| `*.model.json` | Any                 |
+| `*.rbxm`       | Any                 |
+| `*.rbxmx`      | Any                 |
+
+## Limitations
+Not all property types can be synced by Rojo in real-time due to limitations of the Roblox Studio plugin API. In these cases, you can usually generate a place file and open it when you start working on a project.
+
+Some common cases you might hit are:
+
+* Binary data (Terrain, CSG, CollectionService tags)
+* `MeshPart.MeshId`
+* `HttpService.HttpEnabled`
+
+For a list of all property types that Rojo can reason about, both when live-syncing and when building place files, look at [rbx_tree's type coverage chart](https://github.com/LPGhatguy/rbx-tree#property-type-coverage).
+
+## Folders
+Any directory on the filesystem will turn into a `Folder` instance unless it contains an 'init' script, described below.
+
+## Scripts
+The default script type in Rojo projects is `ModuleScript`, since most scripts in well-structued Roblox projects will be modules.
+
+If a directory contains a file named `init.server.lua`, `init.client.lua`, or `init.lua`, that folder will be transformed into a `*Script` instance with the contents of the 'init' file. This can be used to create scripts inside of scripts.
+
+For example, these files:
+
+![Tree of files on disk](images/sync-example-files.svg)
+{: align="center" }
+
+Will turn into these instances in Roblox:
+
+![Tree of instances in Roblox](images/sync-example-instances.svg)
+{: align="center" }
+
+## Localization Tables
+Any CSV files are transformed into `LocalizationTable` instances. Rojo expects these files to follow the same format that Roblox does when importing and exporting localization information.
+
+## Plain Text Files
+Plain text files (`.txt`) files are transformed into `StringValue` instances. This is useful for bringing in text data that can be read by scripts at runtime.
+
+## JSON Models
+Files ending in `.model.json` can be used to describe simple models. They're designed to be hand-written and are useful for instances like `RemoteEvent`.
+
+A JSON model describing a folder containing a `Part` and a `RemoteEvent` could be described as:
+
+```json
+{
+    "Name": "My Cool Model",
+    "ClassName": "Folder",
+    "Children": [
+        {
+            "Name": "RootPart",
+            "ClassName": "Part",
+            "Properties": {
+                "Size": {
+                    "Type": "Vector3",
+                    "Value": [4, 4, 4]
+                }
+            }
+        },
+        {
+            "Name": "SendMoney",
+            "ClassName": "RemoteEvent"
+        }
+    ]
+}
+```
+
+It would turn into instances in this shape:
+
+![Tree of instances in Roblox](images/sync-example-json-model.svg)
+{: align="center" }
+
+## Binary and XML Models
+Rojo supports both binary (`.rbxm`) and XML (`.rbxmx`) models generated by Roblox Studio or another tool.
+
+Not all property types are supported for all formats!
+
+For a rundown of supported types, check out [rbx_tree's type coverage chart](https://github.com/LPGhatguy/rbx-tree#property-type-coverage).

docs/why-rojo.md

@@ -0,0 +1,23 @@
+There are a number of existing plugins for Roblox that move code from the filesystem into Roblox.
+
+Besides Rojo, you might consider:
+
+* [rbxmk by Anaminus](https://github.com/anaminus/rbxmk)
+* [Rofresh by Osyris](https://github.com/osyrisrblx/rofresh)
+* [RbxRefresh by Osyris](https://github.com/osyrisrblx/RbxRefresh)
+* [Studio Bridge by Vocksel](https://github.com/vocksel/studio-bridge)
+* [Elixir by Vocksel](https://github.com/vocksel/elixir)
+* [RbxSync by evaera](https://github.com/evaera/RbxSync)
+* [CodeSync by MemoryPenguin](https://github.com/MemoryPenguin/CodeSync)
+* [rbx-exteditor by MemoryPenguin](https://github.com/MemoryPenguin/rbx-exteditor)
+
+So why did I build Rojo?
+
+Each of these tools solves what is essentially the same problem from a few different angles. The goal of Rojo is to take all of the lessons and ideas learned from these projects and build a tool that can solve this problem for good.
+
+Additionally:
+
+* I think that this tool needs to be built in a compiled language without a runtime, for easy distribution and good performance.
+* I think that the conventions promoted by other sync plugins (`.module.lua` for modules, as well a single sync point) are sub-optimal.
+* I think that I have a good enough understanding of the problem to build something robust.
+* I think that Rojo should be able to do more than just sync code.

generate-docs

@@ -0,0 +1,35 @@
+#!/bin/sh
+
+# Kludged documentation generator to support multiple versions.
+# Make sure the `site` folder is a checkout of this repository's `gh-pages`
+# branch.
+
+set -e
+
+REMOTE=$(git remote get-url origin)
+CHECKOUT="$(mktemp -d)"
+OUTPUT="$(pwd)/site"
+
+if [ -d site ]
+then
+	cd site
+	git pull
+else
+	git clone "$REMOTE" site
+	cd site
+	git checkout gh-pages
+fi
+
+git clone "$REMOTE" "$CHECKOUT"
+cd "$CHECKOUT"
+
+echo "Building master"
+git checkout master
+mkdocs build --site-dir "$OUTPUT"
+
+echo "Building 0.5.x"
+mkdocs build --site-dir "$OUTPUT/0.5.x"
+
+echo "Building 0.4.x"
+git checkout v0.4.x
+mkdocs build --site-dir "$OUTPUT/0.4.x"

mkdocs.yml

@@ -0,0 +1,31 @@
+site_name: Rojo Documentation
+repo_name: LPGhatguy/rojo
+repo_url: https://github.com/LPGhatguy/rojo
+
+theme:
+  name: material
+  palette:
+    primary: 'Red'
+    accent: 'Red'
+
+nav:
+  - Home: index.md
+  - Why Rojo?: why-rojo.md
+  - Installation: installation.md
+  - Creating a Place with Rojo: creating-a-place.md
+  - Migrating from 0.4.x to 0.5.x: migrating-to-epiphany.md
+  - Project Format: project-format.md
+  - Sync Details: sync-details.md
+  - Rojo Internals:
+    - Internals Overview: internals/overview.md
+
+extra_css:
+  - extra.css
+
+markdown_extensions:
+  - attr_list
+  - admonition
+  - codehilite:
+      guess_lang: false
+  - toc:
+      permalink: true

plugin/.gitignore

@@ -0,0 +1 @@
+/luacov.*

plugin/.luacheckrc

@@ -9,10 +9,11 @@ stds.roblox = {
 
 		-- Extra functions
 		"tick", "warn", "spawn",
-		"wait", "settings",
+		"wait", "settings", "typeof",
 
 		-- Types
 		"Vector2", "Vector3",
+		"Vector2int16", "Vector3int16",
 		"Color3",
 		"UDim", "UDim2",
 		"Rect",
@@ -51,6 +52,6 @@ files["**/*.server.lua"] = {
 	std = "+plugin",
 }
 
-files["**/*-spec.lua"] = {
+files["**/*.spec.lua"] = {
 	std = "+testez",
 }

plugin/.luacov

@@ -0,0 +1,8 @@
+return {
+	include = {
+		"^src",
+	},
+	exclude = {
+		"%.spec$",
+	},
+}

plugin/README.md

@@ -0,0 +1,5 @@
+# Rojo Plugin
+
+This is the source to the Rojo Roblox Studio plugin.
+
+Documentation is WIP.

plugin/default.project.json

@@ -0,0 +1,18 @@
+{
+  "name": "Rojo",
+  "tree": {
+    "$className": "Folder",
+    "Plugin": {
+      "$path": "src"
+    },
+    "Roact": {
+      "$path": "modules/roact/lib"
+    },
+    "Promise": {
+      "$path": "modules/promise/lib"
+    },
+    "t": {
+      "$path": "modules/t/lib/t.lua"
+    }
+  }
+}

plugin/loadEnvironment.lua

@@ -0,0 +1,37 @@
+--[[
+	Loads the Rojo plugin and all of its dependencies.
+]]
+
+local function loadEnvironment()
+	-- If you add any dependencies, add them to this table so they'll be loaded!
+	local LOAD_MODULES = {
+		{"src", "Rojo"},
+		{"modules/promise/lib", "Promise"},
+		{"modules/testez/lib", "TestEZ"},
+	}
+
+	-- This makes sure we can load Lemur and other libraries that depend on init.lua
+	package.path = package.path .. ";?/init.lua"
+
+	-- If this fails, make sure you've run `lua bin/install-dependencies.lua` first!
+	local lemur = require("modules.lemur")
+
+	-- Create a virtual Roblox tree
+	local habitat = lemur.Habitat.new()
+
+	-- We'll put all of our library code and dependencies here
+	local modules = lemur.Instance.new("Folder")
+	modules.Name = "Modules"
+	modules.Parent = habitat.game:GetService("ReplicatedStorage")
+
+	-- Load all of the modules specified above
+	for _, module in ipairs(LOAD_MODULES) do
+		local container = habitat:loadFromFs(module[1])
+		container.Name = module[2]
+		container.Parent = modules
+	end
+
+	return habitat, modules
+end
+
+return loadEnvironment

plugin/place.project.json

@@ -0,0 +1,48 @@
+{
+  "name": "rojo",
+  "tree": {
+    "$className": "DataModel",
+
+    "ReplicatedStorage": {
+      "$className": "ReplicatedStorage",
+
+      "Rojo": {
+        "$className": "Folder",
+
+        "Plugin": {
+          "$path": "src"
+        },
+        "Roact": {
+          "$path": "modules/roact/lib"
+        },
+        "Promise": {
+          "$path": "modules/promise/lib"
+        },
+        "t": {
+          "$path": "modules/t/lib/t.lua"
+        }
+      },
+      "TestEZ": {
+        "$path": "modules/testez/lib"
+      }
+    },
+
+    "HttpService": {
+      "$className": "HttpService",
+      "$properties": {
+        "HttpEnabled": {
+          "Type": "Bool",
+          "Value": true
+        }
+      }
+    },
+
+    "ServerScriptService": {
+      "$className": "ServerScriptService",
+
+      "TestBootstrap": {
+        "$path": "testBootstrap.server.lua"
+      }
+    }
+  }
+}

plugin/rbxfs.json

@@ -1,4 +0,0 @@
-{
-  "rootDirectory": "src",
-  "rootObject": "ReplicatedStorage.Rojo"
-}

plugin/rojo.json

@@ -0,0 +1,34 @@
+{
+  "name": "rojo",
+  "servePort": 8000,
+  "partitions": {
+    "plugin": {
+      "path": "src",
+      "target": "ReplicatedStorage.Rojo.Plugin"
+    },
+    "modules/roact": {
+      "path": "modules/roact/lib",
+      "target": "ReplicatedStorage.Rojo.Roact"
+    },
+    "modules/rodux": {
+      "path": "modules/rodux/lib",
+      "target": "ReplicatedStorage.Rojo.Rodux"
+    },
+    "modules/roact-rodux": {
+      "path": "modules/roact-rodux/lib",
+      "target": "ReplicatedStorage.Rojo.RoactRodux"
+    },
+    "modules/promise": {
+      "path": "modules/promise/lib",
+      "target": "ReplicatedStorage.Rojo.Promise"
+    },
+    "modules/testez": {
+      "path": "modules/testez/lib",
+      "target": "ReplicatedStorage.TestEZ"
+    },
+    "tests": {
+      "path": "testBootstrap.server.lua",
+      "target": "TestService.testBootstrap"
+    }
+  }
+}

plugin/runTest.lua

@@ -0,0 +1,15 @@
+local loadEnvironment = require("loadEnvironment")
+
+local testPath = assert((...), "Please specify a path to a test file.")
+
+local habitat = loadEnvironment()
+
+local testModule = habitat:loadFromFs(testPath)
+
+if testModule == nil then
+	error("Couldn't find test file at " .. testPath)
+end
+
+print("Starting test module.")
+
+habitat:require(testModule)

plugin/spec.lua

@@ -0,0 +1,17 @@
+--[[
+	Loads our library and all of its dependencies, then runs tests using TestEZ.
+]]
+
+local loadEnvironment = require("loadEnvironment")
+
+local habitat, modules = loadEnvironment()
+
+-- Load TestEZ and run our tests
+local TestEZ = habitat:require(modules.TestEZ)
+
+local results = TestEZ.TestBootstrap:run({modules.Rojo}, TestEZ.Reporters.TextReporter)
+
+-- Did something go wrong?
+if results.failureCount > 0 then
+	os.exit(1)
+end

plugin/src/ApiContext.lua

@@ -0,0 +1,169 @@
+local Promise = require(script.Parent.Parent.Promise)
+
+local Config = require(script.Parent.Config)
+local Version = require(script.Parent.Version)
+local Http = require(script.Parent.Http)
+local HttpError = require(script.Parent.HttpError)
+
+local ApiContext = {}
+ApiContext.__index = ApiContext
+
+-- TODO: Audit cases of errors and create enum values for each of them.
+ApiContext.Error = {
+	ServerIdMismatch = "ServerIdMismatch",
+
+	-- The server gave an unexpected 400-category error, which may be the
+	-- client's fault.
+	ClientError = "ClientError",
+
+	-- The server gave an unexpected 500-category error, which may be the
+	-- server's fault.
+	ServerError = "ServerError",
+}
+
+setmetatable(ApiContext.Error, {
+	__index = function(_, key)
+		error("Invalid ApiContext.Error name " .. key, 2)
+	end
+})
+
+local function rejectFailedRequests(response)
+	if response.code >= 400 then
+		if response.code < 500 then
+			return Promise.reject(ApiContext.Error.ClientError)
+		else
+			return Promise.reject(ApiContext.Error.ServerError)
+		end
+	end
+
+	return response
+end
+
+function ApiContext.new(baseUrl)
+	assert(type(baseUrl) == "string")
+
+	local self = {
+		baseUrl = baseUrl,
+		serverId = nil,
+		rootInstanceId = nil,
+		messageCursor = -1,
+		partitionRoutes = nil,
+	}
+
+	setmetatable(self, ApiContext)
+
+	return self
+end
+
+function ApiContext:onMessage(callback)
+	self.onMessageCallback = callback
+end
+
+function ApiContext:connect()
+	local url = ("%s/api/rojo"):format(self.baseUrl)
+
+	return Http.get(url)
+		:andThen(rejectFailedRequests)
+		:andThen(function(response)
+			local body = response:json()
+
+			if body.protocolVersion ~= Config.protocolVersion then
+				local message = (
+					"Found a Rojo dev server, but it's using a different protocol version, and is incompatible." ..
+					"\nMake sure you have matching versions of both the Rojo plugin and server!" ..
+					"\n\nYour client is version %s, with protocol version %s. It expects server version %s." ..
+					"\nYour server is version %s, with protocol version %s." ..
+					"\n\nGo to https://github.com/LPGhatguy/rojo for more details."
+				):format(
+					Version.display(Config.version), Config.protocolVersion,
+					Config.expectedApiContextVersionString,
+					body.serverVersion, body.protocolVersion
+				)
+
+				return Promise.reject(message)
+			end
+
+			if body.expectedPlaceIds ~= nil then
+				local foundId = false
+
+				for _, id in ipairs(body.expectedPlaceIds) do
+					if id == game.PlaceId then
+						foundId = true
+						break
+					end
+				end
+
+				if not foundId then
+					local idList = {}
+					for _, id in ipairs(body.expectedPlaceIds) do
+						table.insert(idList, "- " .. tostring(id))
+					end
+
+					local message = (
+						"Found a Rojo server, but its project is set to only be used with a specific list of places." ..
+						"\nYour place ID is %s, but needs to be one of these:" ..
+						"\n%s" ..
+						"\n\nTo change this list, edit 'servePlaceIds' in roblox-project.json"
+					):format(
+						tostring(game.PlaceId),
+						table.concat(idList, "\n")
+					)
+
+					return Promise.reject(message)
+				end
+			end
+
+			self.serverId = body.serverId
+			self.partitionRoutes = body.partitions
+			self.rootInstanceId = body.rootInstanceId
+		end)
+end
+
+function ApiContext:read(ids)
+	local url = ("%s/api/read/%s"):format(self.baseUrl, table.concat(ids, ","))
+
+	return Http.get(url)
+		:andThen(rejectFailedRequests)
+		:andThen(function(response)
+			local body = response:json()
+
+			if body.serverId ~= self.serverId then
+				return Promise.reject("Server changed ID")
+			end
+
+			self.messageCursor = body.messageCursor
+
+			return body
+		end)
+end
+
+function ApiContext:retrieveMessages()
+	local url = ("%s/api/subscribe/%s"):format(self.baseUrl, self.messageCursor)
+
+	local function sendRequest()
+		return Http.get(url)
+			:catch(function(err)
+				if err.type == HttpError.Error.Timeout then
+					return sendRequest()
+				end
+
+				return Promise.reject(err)
+			end)
+	end
+
+	return sendRequest()
+		:andThen(rejectFailedRequests)
+		:andThen(function(response)
+			local body = response:json()
+
+			if body.serverId ~= self.serverId then
+				return Promise.reject("Server changed ID")
+			end
+
+			self.messageCursor = body.messageCursor
+
+			return body.messages
+		end)
+end
+
+return ApiContext

plugin/src/Assets.lua

@@ -0,0 +1,41 @@
+local Assets = {
+	Sprites = {
+		WhiteCross = {
+			asset = "rbxassetid://2738712459",
+			offset = Vector2.new(190, 318),
+			size = Vector2.new(18, 18),
+		},
+	},
+	Slices = {
+		RoundBox = {
+			asset = "rbxassetid://2773204550",
+			offset = Vector2.new(0, 0),
+			size = Vector2.new(32, 32),
+			center = Rect.new(4, 4, 4, 4),
+		},
+	},
+	Images = {
+		Logo = "rbxassetid://2773210620",
+	},
+	StartSession = "",
+	SessionActive = "",
+	Configure = "",
+}
+
+local function guardForTypos(name, map)
+	setmetatable(map, {
+		__index = function(_, key)
+			error(("%q is not a valid member of %s"):format(tostring(key), name), 2)
+		end
+	})
+
+	for key, child in pairs(map) do
+		if type(child) == "table" then
+			guardForTypos(("%s.%s"):format(name, key), child)
+		end
+	end
+end
+
+guardForTypos("Assets", Assets)
+
+return Assets

plugin/src/Components/App.lua

@@ -0,0 +1,205 @@
+local Roact = require(script:FindFirstAncestor("Rojo").Roact)
+
+local Plugin = script:FindFirstAncestor("Plugin")
+
+local Assets = require(Plugin.Assets)
+local Session = require(Plugin.Session)
+local Config = require(Plugin.Config)
+local Version = require(Plugin.Version)
+local Logging = require(Plugin.Logging)
+local DevSettings = require(Plugin.DevSettings)
+local preloadAssets = require(Plugin.preloadAssets)
+
+local ConnectPanel = require(Plugin.Components.ConnectPanel)
+local ConnectionActivePanel = require(Plugin.Components.ConnectionActivePanel)
+
+local e = Roact.createElement
+
+local function showUpgradeMessage(lastVersion)
+	local message = (
+		"Rojo detected an upgrade from version %s to version %s." ..
+		"\nMake sure you have also upgraded your server!" ..
+		"\n\nRojo plugin version %s is intended for use with server version %s."
+	):format(
+		Version.display(lastVersion), Version.display(Config.version),
+		Version.display(Config.version), Config.expectedServerVersionString
+	)
+
+	Logging.info(message)
+end
+
+--[[
+	Check if the user is using a newer version of Rojo than last time. If they
+	are, show them a reminder to make sure they check their server version.
+]]
+local function checkUpgrade(plugin)
+	-- When developing Rojo, there's no use in doing version checks
+	if DevSettings:isEnabled() then
+		return
+	end
+
+	local lastVersion = plugin:GetSetting("LastRojoVersion")
+
+	if lastVersion then
+		local wasUpgraded = Version.compare(Config.version, lastVersion) == 1
+
+		if wasUpgraded then
+			showUpgradeMessage(lastVersion)
+		end
+	end
+
+	plugin:SetSetting("LastRojoVersion", Config.version)
+end
+
+local SessionStatus = {
+	Disconnected = "Disconnected",
+	Connected = "Connected",
+	ConfiguringSession = "ConfiguringSession",
+	-- TODO: Error?
+}
+
+setmetatable(SessionStatus, {
+	__index = function(_, key)
+		error(("%q is not a valid member of SessionStatus"):format(tostring(key)), 2)
+	end,
+})
+
+local App = Roact.Component:extend("App")
+
+function App:init()
+	self:setState({
+		sessionStatus = SessionStatus.Disconnected,
+	})
+
+	self.connectButton = nil
+	self.currentSession = nil
+
+	self.displayedVersion = DevSettings:isEnabled()
+		and Config.codename
+		or Version.display(Config.version)
+end
+
+function App:render()
+	local children
+
+	if self.state.sessionStatus == SessionStatus.Connected then
+		children = {
+			ConnectionActivePanel = e(ConnectionActivePanel, {
+				stopSession = function()
+					Logging.trace("Disconnecting session")
+
+					self.currentSession:disconnect()
+					self.currentSession = nil
+					self:setState({
+						sessionStatus = SessionStatus.Disconnected,
+					})
+
+					Logging.trace("Session terminated by user")
+				end,
+			}),
+		}
+	elseif self.state.sessionStatus == SessionStatus.ConfiguringSession then
+		children = {
+			ConnectPanel = e(ConnectPanel, {
+				startSession = function(address, port)
+					Logging.trace("Starting new session")
+
+					local success, session = Session.new({
+						address = address,
+						port = port,
+						onError = function(message)
+							Logging.warn("Rojo session terminated because of an error:\n%s", tostring(message))
+							self.currentSession = nil
+
+							self:setState({
+								sessionStatus = SessionStatus.Disconnected,
+							})
+						end
+					})
+
+					if success then
+						self.currentSession = session
+						self:setState({
+							sessionStatus = SessionStatus.Connected,
+						})
+					end
+				end,
+				cancel = function()
+					Logging.trace("Canceling session configuration")
+
+					self:setState({
+						sessionStatus = SessionStatus.Disconnected,
+					})
+				end,
+			}),
+		}
+	end
+
+	return e("ScreenGui", {
+		AutoLocalize = false,
+		ZIndexBehavior = Enum.ZIndexBehavior.Sibling,
+	}, children)
+end
+
+function App:didMount()
+	Logging.trace("Rojo %s initializing", self.displayedVersion)
+
+	local toolbar = self.props.plugin:CreateToolbar("Rojo " .. self.displayedVersion)
+
+	self.connectButton = toolbar:CreateButton(
+		"Connect",
+		"Connect to a running Rojo session",
+		Assets.StartSession)
+	self.connectButton.ClickableWhenViewportHidden = false
+	self.connectButton.Click:Connect(function()
+		checkUpgrade(self.props.plugin)
+
+		if self.state.sessionStatus == SessionStatus.Connected then
+			Logging.trace("Disconnecting session")
+
+			self.currentSession:disconnect()
+			self.currentSession = nil
+			self:setState({
+				sessionStatus = SessionStatus.Disconnected,
+			})
+
+			Logging.trace("Session terminated by user")
+		elseif self.state.sessionStatus == SessionStatus.Disconnected then
+			Logging.trace("Starting session configuration")
+
+			self:setState({
+				sessionStatus = SessionStatus.ConfiguringSession,
+			})
+		elseif self.state.sessionStatus == SessionStatus.ConfiguringSession then
+			Logging.trace("Canceling session configuration")
+
+			self:setState({
+				sessionStatus = SessionStatus.Disconnected,
+			})
+		end
+	end)
+
+	preloadAssets()
+end
+
+function App:willUnmount()
+	if self.currentSession ~= nil then
+		self.currentSession:disconnect()
+		self.currentSession = nil
+	end
+end
+
+function App:didUpdate()
+	local connectActive = self.state.sessionStatus == SessionStatus.ConfiguringSession
+		or self.state.sessionStatus == SessionStatus.Connected
+
+	self.connectButton:SetActive(connectActive)
+
+	if self.state.sessionStatus == SessionStatus.Connected then
+		self.connectButton.Icon = Assets.SessionActive
+	else
+		self.connectButton.Icon = Assets.StartSession
+	end
+end
+
+return App

plugin/src/Components/ConnectPanel.lua

@@ -0,0 +1,261 @@
+local Rojo = script:FindFirstAncestor("Rojo")
+local Plugin = Rojo.Plugin
+
+local Roact = require(Rojo.Roact)
+
+local Config = require(Plugin.Config)
+local Version = require(Plugin.Version)
+local Assets = require(Plugin.Assets)
+local Theme = require(Plugin.Theme)
+local joinBindings = require(Plugin.joinBindings)
+
+local FitList = require(Plugin.Components.FitList)
+local FitText = require(Plugin.Components.FitText)
+local FormButton = require(Plugin.Components.FormButton)
+local FormTextInput = require(Plugin.Components.FormTextInput)
+
+local RoundBox = Assets.Slices.RoundBox
+
+local e = Roact.createElement
+
+local ConnectPanel = Roact.Component:extend("ConnectPanel")
+
+function ConnectPanel:init()
+	self.footerSize, self.setFooterSize = Roact.createBinding(Vector2.new())
+	self.footerVersionSize, self.setFooterVersionSize = Roact.createBinding(Vector2.new())
+
+	-- This is constructed in init because 'joinBindings' is a hack and we'd
+	-- leak memory constructing it every render. When this kind of feature lands
+	-- in Roact properly, we can do this inline in render without fear.
+	self.footerRestSize = joinBindings(
+		{
+			self.footerSize,
+			self.footerVersionSize,
+		},
+		function(container, other)
+			return UDim2.new(0, container.X - other.X - 16, 0, 32)
+		end
+	)
+
+	self:setState({
+		address = "",
+		port = "",
+	})
+end
+
+function ConnectPanel:render()
+	local startSession = self.props.startSession
+	local cancel = self.props.cancel
+
+	return e(FitList, {
+		containerKind = "ImageLabel",
+		containerProps = {
+			Image = RoundBox.asset,
+			ImageRectOffset = RoundBox.offset,
+			ImageRectSize = RoundBox.size,
+			SliceCenter = RoundBox.center,
+			ScaleType = Enum.ScaleType.Slice,
+			BackgroundTransparency = 1,
+			Position = UDim2.new(0.5, 0, 0.5, 0),
+			AnchorPoint = Vector2.new(0.5, 0.5),
+		},
+		layoutProps = {
+			HorizontalAlignment = Enum.HorizontalAlignment.Center,
+		},
+	}, {
+		Inputs = e(FitList, {
+			containerProps = {
+				BackgroundTransparency = 1,
+				LayoutOrder = 1,
+			},
+			layoutProps = {
+				FillDirection = Enum.FillDirection.Horizontal,
+				Padding = UDim.new(0, 8),
+			},
+			paddingProps = {
+				PaddingTop = UDim.new(0, 20),
+				PaddingBottom = UDim.new(0, 10),
+				PaddingLeft = UDim.new(0, 24),
+				PaddingRight = UDim.new(0, 24),
+			},
+		}, {
+			Address = e(FitList, {
+				containerProps = {
+					LayoutOrder = 1,
+					BackgroundTransparency = 1,
+				},
+				layoutProps = {
+					Padding = UDim.new(0, 4),
+				},
+			}, {
+				Label = e(FitText, {
+					Kind = "TextLabel",
+					LayoutOrder = 1,
+					BackgroundTransparency = 1,
+					TextXAlignment = Enum.TextXAlignment.Left,
+					Font = Theme.TitleFont,
+					TextSize = 20,
+					Text = "Address",
+					TextColor3 = Theme.AccentColor,
+				}),
+
+				Input = e(FormTextInput, {
+					layoutOrder = 2,
+					width = UDim.new(0, 220),
+					value = self.state.address,
+					placeholderValue = Config.defaultHost,
+					onValueChange = function(newValue)
+						self:setState({
+							address = newValue,
+						})
+					end,
+				}),
+			}),
+
+			Port = e(FitList, {
+				containerProps = {
+					LayoutOrder = 2,
+					BackgroundTransparency = 1,
+				},
+				layoutProps = {
+					Padding = UDim.new(0, 4),
+				},
+			}, {
+				Label = e(FitText, {
+					Kind = "TextLabel",
+					LayoutOrder = 1,
+					BackgroundTransparency = 1,
+					TextXAlignment = Enum.TextXAlignment.Left,
+					Font = Theme.TitleFont,
+					TextSize = 20,
+					Text = "Port",
+					TextColor3 = Theme.AccentColor,
+				}),
+
+				Input = e(FormTextInput, {
+					layoutOrder = 2,
+					width = UDim.new(0, 80),
+					value = self.state.port,
+					placeholderValue = Config.defaultPort,
+					onValueChange = function(newValue)
+						self:setState({
+							port = newValue,
+						})
+					end,
+				}),
+			}),
+		}),
+
+		Buttons = e(FitList, {
+			fitAxes = "Y",
+			containerProps = {
+				BackgroundTransparency = 1,
+				LayoutOrder = 2,
+				Size = UDim2.new(1, 0, 0, 0),
+			},
+			layoutProps = {
+				FillDirection = Enum.FillDirection.Horizontal,
+				HorizontalAlignment = Enum.HorizontalAlignment.Right,
+				Padding = UDim.new(0, 8),
+			},
+			paddingProps = {
+				PaddingTop = UDim.new(0, 0),
+				PaddingBottom = UDim.new(0, 20),
+				PaddingLeft = UDim.new(0, 24),
+				PaddingRight = UDim.new(0, 24),
+			},
+		}, {
+			e(FormButton, {
+				layoutOrder = 1,
+				text = "Cancel",
+				onClick = function()
+					if cancel ~= nil then
+						cancel()
+					end
+				end,
+				secondary = true,
+			}),
+
+			e(FormButton, {
+				layoutOrder = 2,
+				text = "Connect",
+				onClick = function()
+					if startSession ~= nil then
+						local address = self.state.address
+						if address:len() == 0 then
+							address = Config.defaultHost
+						end
+
+						local port = self.state.port
+						if port:len() == 0 then
+							port = Config.defaultPort
+						end
+
+						startSession(address, port)
+					end
+				end,
+			}),
+		}),
+
+		Footer = e(FitList, {
+			fitAxes = "Y",
+			containerKind = "ImageLabel",
+			containerProps = {
+				Image = RoundBox.asset,
+				ImageRectOffset = RoundBox.offset + Vector2.new(0, RoundBox.size.Y / 2),
+				ImageRectSize = RoundBox.size * Vector2.new(1, 0.5),
+				SliceCenter = RoundBox.center,
+				ScaleType = Enum.ScaleType.Slice,
+				ImageColor3 = Theme.SecondaryColor,
+				Size = UDim2.new(1, 0, 0, 0),
+				LayoutOrder = 3,
+				BackgroundTransparency = 1,
+
+				[Roact.Change.AbsoluteSize] = function(rbx)
+					self.setFooterSize(rbx.AbsoluteSize)
+				end,
+			},
+			layoutProps = {
+				FillDirection = Enum.FillDirection.Horizontal,
+				HorizontalAlignment = Enum.HorizontalAlignment.Center,
+				VerticalAlignment = Enum.VerticalAlignment.Center,
+			},
+			paddingProps = {
+				PaddingTop = UDim.new(0, 4),
+				PaddingBottom = UDim.new(0, 4),
+				PaddingLeft = UDim.new(0, 8),
+				PaddingRight = UDim.new(0, 8),
+			},
+		}, {
+			LogoContainer = e("Frame", {
+				BackgroundTransparency = 1,
+
+				Size = self.footerRestSize,
+			}, {
+				Logo = e("ImageLabel", {
+					Image = Assets.Images.Logo,
+					Size = UDim2.new(0, 80, 0, 40),
+					ScaleType = Enum.ScaleType.Fit,
+					BackgroundTransparency = 1,
+					Position = UDim2.new(0, 0, 1, -10),
+					AnchorPoint = Vector2.new(0, 1),
+				}),
+			}),
+
+			Version = e(FitText, {
+				Font = Theme.TitleFont,
+				TextSize = 18,
+				Text = Version.display(Config.version),
+				TextXAlignment = Enum.TextXAlignment.Right,
+				TextColor3 = Theme.LightTextColor,
+				BackgroundTransparency = 1,
+
+				[Roact.Change.AbsoluteSize] = function(rbx)
+					self.setFooterVersionSize(rbx.AbsoluteSize)
+				end,
+			}),
+		}),
+	})
+end
+
+return ConnectPanel

plugin/src/Components/ConnectionActivePanel.lua

@@ -0,0 +1,67 @@
+local Roact = require(script:FindFirstAncestor("Rojo").Roact)
+
+local Plugin = script:FindFirstAncestor("Plugin")
+
+local Theme = require(Plugin.Theme)
+local Assets = require(Plugin.Assets)
+
+local FitList = require(Plugin.Components.FitList)
+local FitText = require(Plugin.Components.FitText)
+
+local e = Roact.createElement
+
+local RoundBox = Assets.Slices.RoundBox
+local WhiteCross = Assets.Sprites.WhiteCross
+
+local function ConnectionActivePanel(props)
+	local stopSession = props.stopSession
+
+	return e(FitList, {
+		containerKind = "ImageLabel",
+		containerProps = {
+			Image = RoundBox.asset,
+			ImageRectOffset = RoundBox.offset + Vector2.new(0, RoundBox.size.Y / 2),
+			ImageRectSize = RoundBox.size * Vector2.new(1, 0.5),
+			SliceCenter = Rect.new(4, 4, 4, 4),
+			ScaleType = Enum.ScaleType.Slice,
+			BackgroundTransparency = 1,
+			Position = UDim2.new(0.5, 0, 0, 0),
+			AnchorPoint = Vector2.new(0.5, 0),
+		},
+		layoutProps = {
+			FillDirection = Enum.FillDirection.Horizontal,
+			VerticalAlignment = Enum.VerticalAlignment.Center,
+		},
+	}, {
+		Text = e(FitText, {
+			Padding = Vector2.new(12, 6),
+			Font = Theme.ButtonFont,
+			TextSize = 18,
+			Text = "Rojo Connected",
+			TextColor3 = Theme.PrimaryColor,
+			BackgroundTransparency = 1,
+		}),
+
+		CloseContainer = e("ImageButton", {
+			Size = UDim2.new(0, 30, 0, 30),
+			BackgroundTransparency = 1,
+
+			[Roact.Event.Activated] = function()
+				stopSession()
+			end,
+		}, {
+			CloseImage = e("ImageLabel", {
+				Size = UDim2.new(0, 16, 0, 16),
+				Position = UDim2.new(0.5, 0, 0.5, 0),
+				AnchorPoint = Vector2.new(0.5, 0.5),
+				Image = WhiteCross.asset,
+				ImageRectOffset = WhiteCross.offset,
+				ImageRectSize = WhiteCross.size,
+				ImageColor3 = Theme.PrimaryColor,
+				BackgroundTransparency = 1,
+			}),
+		}),
+	})
+end
+
+return ConnectionActivePanel

plugin/src/Components/FitList.lua

@@ -0,0 +1,63 @@
+local Roact = require(script:FindFirstAncestor("Rojo").Roact)
+
+local Dictionary = require(script.Parent.Parent.Dictionary)
+
+local e = Roact.createElement
+
+local FitList = Roact.Component:extend("FitList")
+
+function FitList:init()
+	self.sizeBinding, self.setSize = Roact.createBinding(UDim2.new())
+end
+
+function FitList:render()
+	local containerKind = self.props.containerKind or "Frame"
+	local fitAxes = self.props.fitAxes or "XY"
+	local containerProps = self.props.containerProps
+	local layoutProps = self.props.layoutProps
+	local paddingProps = self.props.paddingProps
+
+	local padding
+	if paddingProps ~= nil then
+		padding = e("UIPadding", paddingProps)
+	end
+
+	local children = Dictionary.merge(self.props[Roact.Children], {
+		["$Layout"] = e("UIListLayout", Dictionary.merge({
+			SortOrder = Enum.SortOrder.LayoutOrder,
+			[Roact.Change.AbsoluteContentSize] = function(instance)
+				local contentSize = instance.AbsoluteContentSize
+
+				if paddingProps ~= nil then
+					contentSize = contentSize + Vector2.new(
+						paddingProps.PaddingLeft.Offset + paddingProps.PaddingRight.Offset,
+						paddingProps.PaddingTop.Offset + paddingProps.PaddingBottom.Offset)
+				end
+
+				local combinedSize
+
+				if fitAxes == "X" then
+					combinedSize = UDim2.new(0, contentSize.X, containerProps.Size.Y.Scale, containerProps.Size.Y.Offset)
+				elseif fitAxes == "Y" then
+					combinedSize = UDim2.new(containerProps.Size.X.Scale, containerProps.Size.X.Offset, 0, contentSize.Y)
+				elseif fitAxes == "XY" then
+					combinedSize = UDim2.new(0, contentSize.X, 0, contentSize.Y)
+				else
+					error("Invalid fitAxes value")
+				end
+
+				self.setSize(combinedSize)
+			end,
+		}, layoutProps)),
+
+		["$Padding"] = padding,
+	})
+
+	local fullContainerProps = Dictionary.merge(containerProps, {
+		Size = self.sizeBinding,
+	})
+
+	return e(containerKind, fullContainerProps, children)
+end
+
+return FitList

plugin/src/Components/FitText.lua

@@ -0,0 +1,52 @@
+local TextService = game:GetService("TextService")
+
+local Roact = require(script:FindFirstAncestor("Rojo").Roact)
+
+local Dictionary = require(script.Parent.Parent.Dictionary)
+
+local e = Roact.createElement
+
+local FitText = Roact.Component:extend("FitText")
+
+function FitText:init()
+	self.sizeBinding, self.setSize = Roact.createBinding(UDim2.new())
+end
+
+function FitText:render()
+	local kind = self.props.Kind or "TextLabel"
+
+	local containerProps = Dictionary.merge(self.props, {
+		Kind = Dictionary.None,
+		Padding = Dictionary.None,
+		MinSize = Dictionary.None,
+		Size = self.sizeBinding
+	})
+
+	return e(kind, containerProps)
+end
+
+function FitText:didMount()
+	self:updateTextMeasurements()
+end
+
+function FitText:didUpdate()
+	self:updateTextMeasurements()
+end
+
+function FitText:updateTextMeasurements()
+	local minSize = self.props.MinSize or Vector2.new(0, 0)
+	local padding = self.props.Padding or Vector2.new(0, 0)
+
+	local text = self.props.Text or ""
+	local font = self.props.Font or Enum.Font.Legacy
+	local textSize = self.props.TextSize or 12
+
+	local measuredText = TextService:GetTextSize(text, textSize, font, Vector2.new(9e6, 9e6))
+	local totalSize = UDim2.new(
+		0, math.max(minSize.X, padding.X * 2 + measuredText.X),
+		0, math.max(minSize.Y, padding.Y * 2 + measuredText.Y))
+
+	self.setSize(totalSize)
+end
+
+return FitText

plugin/src/Components/FormButton.lua

@@ -0,0 +1,62 @@
+local Rojo = script:FindFirstAncestor("Rojo")
+local Plugin = Rojo.Plugin
+
+local Roact = require(Rojo.Roact)
+
+local Assets = require(Plugin.Assets)
+local Theme = require(Plugin.Theme)
+local FitList = require(Plugin.Components.FitList)
+local FitText = require(Plugin.Components.FitText)
+
+local e = Roact.createElement
+
+local RoundBox = Assets.Slices.RoundBox
+
+local function FormButton(props)
+	local text = props.text
+	local layoutOrder = props.layoutOrder
+	local onClick = props.onClick
+
+	local textColor
+	local backgroundColor
+
+	if props.secondary then
+		textColor = Theme.AccentColor
+		backgroundColor = Theme.SecondaryColor
+	else
+		textColor = Theme.SecondaryColor
+		backgroundColor = Theme.AccentColor
+	end
+
+	return e(FitList, {
+		containerKind = "ImageButton",
+		containerProps = {
+			LayoutOrder = layoutOrder,
+			BackgroundTransparency = 1,
+			Image = RoundBox.asset,
+			ImageRectOffset = RoundBox.offset,
+			ImageRectSize = RoundBox.size,
+			SliceCenter = RoundBox.center,
+			ScaleType = Enum.ScaleType.Slice,
+			ImageColor3 = backgroundColor,
+
+			[Roact.Event.Activated] = function()
+				if onClick ~= nil then
+					onClick()
+				end
+			end,
+		},
+	}, {
+		Text = e(FitText, {
+			Kind = "TextLabel",
+			Text = text,
+			TextSize = 18,
+			TextColor3 = textColor,
+			Font = Theme.ButtonFont,
+			Padding = Vector2.new(16, 8),
+			BackgroundTransparency = 1,
+		}),
+	})
+end
+
+return FormButton

plugin/src/Components/FormTextInput.lua

@@ -0,0 +1,80 @@
+local Rojo = script:FindFirstAncestor("Rojo")
+local Plugin = Rojo.Plugin
+
+local Roact = require(Rojo.Roact)
+
+local Assets = require(Plugin.Assets)
+local Theme = require(Plugin.Theme)
+
+local e = Roact.createElement
+
+local RoundBox = Assets.Slices.RoundBox
+
+local TEXT_SIZE = 22
+local PADDING = 8
+
+local FormTextInput = Roact.Component:extend("FormTextInput")
+
+function FormTextInput:init()
+	self:setState({
+		focused = false,
+	})
+end
+
+function FormTextInput:render()
+	local value = self.props.value
+	local placeholderValue = self.props.placeholderValue
+	local onValueChange = self.props.onValueChange
+	local layoutOrder = self.props.layoutOrder
+	local width = self.props.width
+
+	local shownPlaceholder
+	if self.state.focused then
+		shownPlaceholder = ""
+	else
+		shownPlaceholder = placeholderValue
+	end
+
+	return e("ImageLabel", {
+		LayoutOrder = layoutOrder,
+		Image = RoundBox.asset,
+		ImageRectOffset = RoundBox.offset,
+		ImageRectSize = RoundBox.size,
+		ScaleType = Enum.ScaleType.Slice,
+		SliceCenter = RoundBox.center,
+		ImageColor3 = Theme.SecondaryColor,
+		Size = UDim2.new(width.Scale, width.Offset, 0, TEXT_SIZE + PADDING * 2),
+		BackgroundTransparency = 1,
+	}, {
+		InputInner = e("TextBox", {
+			BackgroundTransparency = 1,
+			Size = UDim2.new(1, -PADDING * 2, 1, -PADDING * 2),
+			Position = UDim2.new(0.5, 0, 0.5, 0),
+			AnchorPoint = Vector2.new(0.5, 0.5),
+			Font = Theme.InputFont,
+			ClearTextOnFocus = false,
+			TextXAlignment = Enum.TextXAlignment.Center,
+			TextSize = TEXT_SIZE,
+			Text = value,
+			PlaceholderText = shownPlaceholder,
+			PlaceholderColor3 = Theme.AccentLightColor,
+			TextColor3 = Theme.AccentColor,
+
+			[Roact.Change.Text] = function(rbx)
+				onValueChange(rbx.Text)
+			end,
+			[Roact.Event.Focused] = function()
+				self:setState({
+					focused = true,
+				})
+			end,
+			[Roact.Event.FocusLost] = function()
+				self:setState({
+					focused = false,
+				})
+			end,
+		}),
+	})
+end
+
+return FormTextInput

plugin/src/Config.lua

@@ -1,3 +1,8 @@
 return {
-	pollingRate = 0.3,
-}
+	codename = "Epiphany",
+	version = {0, 5, 0, "-alpha.9"},
+	expectedServerVersionString = "0.5.0 or newer",
+	protocolVersion = 2,
+	defaultHost = "localhost",
+	defaultPort = 34872,
+}

plugin/src/DevSettings.lua

@@ -0,0 +1,127 @@
+local Config = require(script.Parent.Config)
+
+local Environment = {
+	User = "User",
+	Dev = "Dev",
+	Test = "Test",
+}
+
+local VALUES = {
+	LogLevel = {
+		type = "IntValue",
+		values = {
+			[Environment.User] = 2,
+			[Environment.Dev] = 3,
+			[Environment.Test] = 3,
+		},
+	},
+	TypecheckingEnabled = {
+		type = "BoolValue",
+		values = {
+			[Environment.User] = false,
+			[Environment.Dev] = true,
+			[Environment.Test] = true,
+		},
+	},
+}
+
+local CONTAINER_NAME = "RojoDevSettings" .. Config.codename
+
+local function getValueContainer()
+	return game:FindFirstChild(CONTAINER_NAME)
+end
+
+local valueContainer = getValueContainer()
+
+local function getStoredValue(name)
+	if valueContainer == nil then
+		return nil
+	end
+
+	local valueObject = valueContainer:FindFirstChild(name)
+
+	if valueObject == nil then
+		return nil
+	end
+
+	return valueObject.Value
+end
+
+local function setStoredValue(name, kind, value)
+	local object = valueContainer:FindFirstChild(name)
+
+	if object == nil then
+		object = Instance.new(kind)
+		object.Name = name
+		object.Parent = valueContainer
+	end
+
+	object.Value = value
+end
+
+local function createAllValues(environment)
+	assert(Environment[environment] ~= nil, "Invalid environment")
+
+	valueContainer = getValueContainer()
+
+	if valueContainer == nil then
+		valueContainer = Instance.new("Folder")
+		valueContainer.Name = CONTAINER_NAME
+		valueContainer.Parent = game
+	end
+
+	for name, value in pairs(VALUES) do
+		setStoredValue(name, value.type, value.values[environment])
+	end
+end
+
+local function getValue(name)
+	assert(VALUES[name] ~= nil, "Invalid DevSettings name")
+
+	local stored = getStoredValue(name)
+
+	if stored ~= nil then
+		return stored
+	end
+
+	return VALUES[name].values[Environment.User]
+end
+
+local DevSettings = {}
+
+function DevSettings:createDevSettings()
+	createAllValues(Environment.Dev)
+end
+
+function DevSettings:createTestSettings()
+	createAllValues(Environment.Test)
+end
+
+function DevSettings:hasChangedValues()
+	return valueContainer ~= nil
+end
+
+function DevSettings:resetValues()
+	if valueContainer then
+		valueContainer:Destroy()
+		valueContainer = nil
+	end
+end
+
+function DevSettings:isEnabled()
+	return valueContainer ~= nil
+end
+
+function DevSettings:getLogLevel()
+	return getValue("LogLevel")
+end
+
+function DevSettings:shouldTypecheck()
+	return getValue("TypecheckingEnabled")
+end
+
+function _G.ROJO_DEV_CREATE()
+	DevSettings:createDevSettings()
+end
+
+return DevSettings

plugin/src/Dictionary.lua

@@ -0,0 +1,33 @@
+--[[
+	This is a placeholder module waiting for Cryo to become available.
+]]
+
+local None = newproxy(true)
+getmetatable(None).__tostring = function()
+	return "None"
+end
+
+local function merge(...)
+	local output = {}
+
+	for i = 1, select("#", ...) do
+		local source = select(i, ...)
+
+		if source ~= nil then
+			for key, value in pairs(source) do
+				if value == None then
+					output[key] = nil
+				else
+					output[key] = value
+				end
+			end
+		end
+	end
+
+	return output
+end
+
+return {
+	None = None,
+	merge = merge,
+}

plugin/src/Http.lua

@@ -1,67 +1,75 @@
 local HttpService = game:GetService("HttpService")
 
-local HTTP_DEBUG = false
+local Promise = require(script.Parent.Parent.Promise)
 
-local Promise = require(script.Parent.Promise)
+local Logging = require(script.Parent.Logging)
 local HttpError = require(script.Parent.HttpError)
 local HttpResponse = require(script.Parent.HttpResponse)
 
-local function dprint(...)
-	if HTTP_DEBUG then
-		print(...)
-	end
-end
+local lastRequestId = 0
 
+-- TODO: Factor out into separate library, especially error handling
 local Http = {}
-Http.__index = Http
 
-function Http.new(baseUrl)
-	assert(type(baseUrl) == "string", "Http.new needs a baseUrl!")
+function Http.get(url)
+	local requestId = lastRequestId + 1
+	lastRequestId = requestId
 
-	local http = {
-		baseUrl = baseUrl
-	}
+	Logging.trace("GET(%d) %s", requestId, url)
 
-	setmetatable(http, Http)
-
-	return http
-end
-
-function Http:get(endpoint)
-	dprint("\nGET", endpoint)
 	return Promise.new(function(resolve, reject)
-		spawn(function()
-			local ok, result = pcall(function()
-				return HttpService:GetAsync(self.baseUrl .. endpoint, true)
+		coroutine.wrap(function()
+			local success, response = pcall(function()
+				return HttpService:RequestAsync({
+					Url = url,
+					Method = "GET",
+				})
 			end)
 
-			if ok then
-				dprint("\t", result, "\n")
-				resolve(HttpResponse.new(result))
+			if success then
+				Logging.trace("Request %d success: status code %s", requestId, response.StatusCode)
+				resolve(HttpResponse.fromRobloxResponse(response))
 			else
-				reject(HttpError.fromErrorString(result))
+				Logging.trace("Request %d failure: %s", requestId, response)
+				reject(HttpError.fromErrorString(response))
 			end
-		end)
+		end)()
 	end)
 end
 
-function Http:post(endpoint, body)
-	dprint("\nPOST", endpoint)
-	dprint(body)
+function Http.post(url, body)
+	local requestId = lastRequestId + 1
+	lastRequestId = requestId
+
+	Logging.trace("POST(%d) %s\n%s", requestId, url, body)
+
 	return Promise.new(function(resolve, reject)
-		spawn(function()
-			local ok, result = pcall(function()
-				return HttpService:PostAsync(self.baseUrl .. endpoint, body)
+		coroutine.wrap(function()
+			local success, response = pcall(function()
+				return HttpService:RequestAsync({
+					Url = url,
+					Method = "POST",
+					Body = body,
+				})
 			end)
 
-			if ok then
-				dprint("\t", result, "\n")
-				resolve(HttpResponse.new(result))
+			if success then
+				Logging.trace("Request %d success: status code %s", requestId, response.StatusCode)
+				resolve(HttpResponse.fromRobloxResponse(response))
 			else
-				reject(HttpError.fromErrorString(result))
+				Logging.trace("Request %d failure: %s", requestId, response)
+				reject(HttpError.fromErrorString(response))
 			end
-		end)
+		end)()
 	end)
 end
 
-return Http
+function Http.jsonEncode(object)
+	return HttpService:JSONEncode(object)
+end
+
+function Http.jsonDecode(source)
+	return HttpService:JSONDecode(source)
+end
+
+return Http

plugin/src/HttpError.lua

@@ -1,3 +1,5 @@
+local Logging = require(script.Parent.Logging)
+
 local HttpError = {}
 HttpError.__index = HttpError
 
@@ -7,14 +9,23 @@ HttpError.Error = {
 			"Check your game settings, located in the 'Home' tab of Studio.",
 	},
 	ConnectFailed = {
-		message = "Rojo plugin couldn't connect to the Rojo server.\n" ..
-			"Make sure the server is running -- use 'Rojo serve' to run it!",
+		message = "Couldn't connect to the Rojo server.\n" ..
+			"Make sure the server is running -- use 'rojo serve' to run it!",
+	},
+	Timeout = {
+		message = "Request timed out.",
 	},
 	Unknown = {
-		message = "Rojo encountered an unknown error: {{message}}",
+		message = "Unknown error: {{message}}",
 	},
 }
 
+setmetatable(HttpError.Error, {
+	__index = function(_, key)
+		error(("%q is not a valid member of HttpError.Error"):format(tostring(key)), 2)
+	end,
+})
+
 function HttpError.new(type, extraMessage)
 	extraMessage = extraMessage or ""
 	local message = type.message:gsub("{{message}}", extraMessage)
@@ -36,22 +47,26 @@ end
 --[[
 	This method shouldn't have to exist. Ugh.
 ]]
-function HttpError.fromErrorString(err)
-	err = err:lower()
+function HttpError.fromErrorString(message)
+	local lower = message:lower()
 
-	if err:find("^http requests are not enabled") then
+	if lower:find("^http requests are not enabled") then
 		return HttpError.new(HttpError.Error.HttpNotEnabled)
 	end
 
-	if err:find("^curl error") then
+	if lower:find("^httperror: timedout") then
+		return HttpError.new(HttpError.Error.Timeout)
+	end
+
+	if lower:find("^httperror: connectfail") then
 		return HttpError.new(HttpError.Error.ConnectFailed)
 	end
 
-	return HttpError.new(HttpError.Error.Unknown, err)
+	return HttpError.new(HttpError.Error.Unknown, message)
 end
 
 function HttpError:report()
-	warn(self.message)
+	Logging.warn(self.message)
 end
 
-return HttpError
+return HttpError

plugin/src/HttpResponse.lua

@@ -1,20 +1,34 @@
 local HttpService = game:GetService("HttpService")
 
+local stringTemplate = [[
+HttpResponse {
+	code: %d
+	body: %s
+}]]
+
 local HttpResponse = {}
 HttpResponse.__index = HttpResponse
 
-function HttpResponse.new(body)
-	local response = {
-		body = body,
+function HttpResponse:__tostring()
+	return stringTemplate:format(self.code, self.body)
+end
+
+function HttpResponse.fromRobloxResponse(response)
+	local self = {
+		body = response.Body,
+		code = response.StatusCode,
+		headers = response.Headers,
 	}
 
-	setmetatable(response, HttpResponse)
+	return setmetatable(self, HttpResponse)
+end
 
-	return response
+function HttpResponse:isSuccess()
+	return self.code >= 200 and self.code < 300
 end
 
 function HttpResponse:json()
 	return HttpService:JSONDecode(self.body)
 end
 
-return HttpResponse
+return HttpResponse

plugin/src/InstanceMap.lua

@@ -0,0 +1,81 @@
+local Logging = require(script.Parent.Logging)
+
+--[[
+	A bidirectional map between instance IDs and Roblox instances. It lets us
+	keep track of every instance we know about.
+
+	TODO: Track ancestry to catch when stuff moves?
+]]
+local InstanceMap = {}
+InstanceMap.__index = InstanceMap
+
+function InstanceMap.new()
+	local self = {
+		fromIds = {},
+		fromInstances = {},
+	}
+
+	return setmetatable(self, InstanceMap)
+end
+
+function InstanceMap:insert(id, instance)
+	self.fromIds[id] = instance
+	self.fromInstances[instance] = id
+end
+
+function InstanceMap:removeId(id)
+	local instance = self.fromIds[id]
+
+	if instance ~= nil then
+		self.fromIds[id] = nil
+		self.fromInstances[instance] = nil
+	else
+		Logging.warn("Attempted to remove nonexistant ID %s", tostring(id))
+	end
+end
+
+function InstanceMap:removeInstance(instance)
+	local id = self.fromInstances[instance]
+
+	if id ~= nil then
+		self.fromInstances[instance] = nil
+		self.fromIds[id] = nil
+	else
+		Logging.warn("Attempted to remove nonexistant instance %s", tostring(instance))
+	end
+end
+
+function InstanceMap:destroyInstance(instance)
+	local id = self.fromInstances[instance]
+
+	if id ~= nil then
+		self:destroyId(id)
+	else
+		Logging.warn("Attempted to destroy untracked instance %s", tostring(instance))
+	end
+end
+
+function InstanceMap:destroyId(id)
+	local instance = self.fromIds[id]
+	self:removeId(id)
+
+	if instance ~= nil then
+		local descendantsToDestroy = {}
+
+		for otherInstance in pairs(self.fromInstances) do
+			if otherInstance:IsDescendantOf(instance) then
+				table.insert(descendantsToDestroy, otherInstance)
+			end
+		end
+
+		for _, otherInstance in ipairs(descendantsToDestroy) do
+			self:removeInstance(otherInstance)
+		end
+
+		instance:Destroy()
+	else
+		Logging.warn("Attempted to destroy nonexistant ID %s", tostring(id))
+	end
+end
+
+return InstanceMap

plugin/src/Logging.lua

@@ -0,0 +1,50 @@
+local DevSettings = require(script.Parent.DevSettings)
+
+local Level = {
+	Error = 0,
+	Warning = 1,
+	Info = 2,
+	Trace = 3,
+}
+
+local testLogLevel = nil
+
+local function getLogLevel()
+	if testLogLevel ~= nil then
+		return testLogLevel
+	end
+
+	return DevSettings:getLogLevel()
+end
+
+local function addTags(tag, message)
+	return tag .. message:gsub("\n", "\n" .. tag)
+end
+
+local INFO_TAG = (" "):rep(15) .. "[Rojo-Info] "
+local TRACE_TAG = (" "):rep(15) .. "[Rojo-Trace] "
+local WARN_TAG = "[Rojo-Warn] "
+
+local Log = {}
+
+Log.Level = Level
+
+function Log.trace(template, ...)
+	if getLogLevel() >= Level.Trace then
+		print(addTags(TRACE_TAG, string.format(template, ...)))
+	end
+end
+
+function Log.info(template, ...)
+	if getLogLevel() >= Level.Info then
+		print(addTags(INFO_TAG, string.format(template, ...)))
+	end
+end
+
+function Log.warn(template, ...)
+	if getLogLevel() >= Level.Warning then
+		warn(addTags(WARN_TAG, string.format(template, ...)))
+	end
+end
+
+return Log

plugin/src/Main.server.lua

@@ -1,39 +0,0 @@
-if not plugin then
-	return
-end
-
-local Plugin = require(script.Parent.Plugin)
-
-local function main()
-	local pluginInstance = Plugin.new()
-
-	local toolbar = plugin:CreateToolbar("Rojo Plugin 0.2.0")
-
-	toolbar:CreateButton("Test Connection", "Connect to Rojo Server", "")
-		.Click:Connect(function()
-			pluginInstance:connect()
-				:catch(function(err)
-					warn(err)
-				end)
-		end)
-
-	toolbar:CreateButton("Sync In", "Sync into Roblox Studio", "")
-		.Click:Connect(function()
-			pluginInstance:syncIn()
-				:catch(function(err)
-					warn(err)
-				end)
-		end)
-
-	toolbar:CreateButton("Toggle Polling", "Poll server for changes", "")
-		.Click:Connect(function()
-			spawn(function()
-				pluginInstance:togglePolling()
-					:catch(function(err)
-						warn(err)
-					end)
-			end)
-		end)
-end
-
-main()

plugin/src/Plugin.lua

@@ -1,178 +0,0 @@
-local Config = require(script.Parent.Config)
-local Http = require(script.Parent.Http)
-local Server = require(script.Parent.Server)
-local Promise = require(script.Parent.Promise)
-local Reconciler = require(script.Parent.Reconciler)
-
-local function collectMatch(source, pattern)
-	local result = {}
-
-	for match in source:gmatch(pattern) do
-		table.insert(result, match)
-	end
-
-	return result
-end
-
-local Plugin = {}
-Plugin.__index = Plugin
-
-function Plugin.new()
-	local address = "localhost"
-	local port = 8081
-
-	local remote = ("http://%s:%d"):format(address, port)
-
-	local foop = {
-		_http = Http.new(remote),
-		_server = nil,
-		_polling = false,
-	}
-
-	setmetatable(foop, Plugin)
-
-	do
-		local screenGui = Instance.new("ScreenGui")
-		screenGui.Name = "Rojo UI"
-		screenGui.Parent = game.CoreGui
-		screenGui.DisplayOrder = -1
-		screenGui.Enabled = false
-
-		local label = Instance.new("TextLabel")
-		label.Font = Enum.Font.SourceSans
-		label.TextSize = 20
-		label.Text = "Rojo polling..."
-		label.BackgroundColor3 = Color3.fromRGB(31, 31, 31)
-		label.BackgroundTransparency = 0.5
-		label.BorderSizePixel = 0
-		label.TextColor3 = Color3.new(1, 1, 1)
-		label.Size = UDim2.new(0, 120, 0, 28)
-		label.Position = UDim2.new(0, 0, 0, 0)
-		label.Parent = screenGui
-
-		foop._label = screenGui
-	end
-
-	return foop
-end
-
-function Plugin:server()
-	if not self._server then
-		self._server = Server.connect(self._http)
-			:catch(function(err)
-				self._server = nil
-				return Promise.reject(err)
-			end)
-	end
-
-	return self._server
-end
-
-function Plugin:connect()
-	print("Testing connection...")
-
-	return self:server()
-		:andThen(function(server)
-			return server:getInfo()
-		end)
-		:andThen(function(result)
-			print("Server found!")
-			print("Protocol version:", result.protocolVersion)
-			print("Server version:", result.serverVersion)
-		end)
-end
-
-function Plugin:togglePolling()
-	if self._polling then
-		self:stopPolling()
-
-		return Promise.resolve(nil)
-	else
-		return self:startPolling()
-	end
-end
-
-function Plugin:stopPolling()
-	if not self._polling then
-		return
-	end
-
-	print("Stopped polling.")
-
-	self._polling = false
-	self._label.Enabled = false
-end
-
-function Plugin:_pull(server, project, routes)
-	local items = server:read(routes):await()
-
-	for index = 1, #routes do
-		local route = routes[index]
-		local partitionName = route[1]
-		local partition = project.partitions[partitionName]
-		local item = items[index]
-
-		local fullRoute = collectMatch(partition.target, "[^.]+")
-		for i = 2, #route do
-			table.insert(fullRoute, routes[index][i])
-		end
-
-		Reconciler.reconcileRoute(fullRoute, item)
-	end
-end
-
-function Plugin:startPolling()
-	if self._polling then
-		return
-	end
-
-	print("Starting to poll...")
-
-	self._polling = true
-	self._label.Enabled = true
-
-	return self:server()
-		:andThen(function(server)
-			self:syncIn():await()
-
-			local project = server:getInfo():await().project
-
-			while self._polling do
-				local changes = server:getChanges():await()
-
-				local routes = {}
-
-				for _, change in ipairs(changes) do
-					table.insert(routes, change.route)
-				end
-
-				self:_pull(server, project, routes)
-
-				wait(Config.pollingRate)
-			end
-		end)
-		:catch(function()
-			self:stopPolling()
-		end)
-end
-
-function Plugin:syncIn()
-	print("Syncing from server...")
-
-	return self:server()
-		:andThen(function(server)
-			local project = server:getInfo():await().project
-
-			local routes = {}
-
-			for name in pairs(project.partitions) do
-				table.insert(routes, {name})
-			end
-
-			self:_pull(server, project, routes)
-
-			print("Sync successful!")
-		end)
-end
-
-return Plugin

plugin/src/Promise-spec.lua

@@ -1,70 +0,0 @@
-return function()
-	local Promise = require(script.Parent.Promise)
-
-	describe("Promise.new", function()
-		it("should instantiate with a callback", function()
-			local promise = Promise.new(function() end)
-
-			expect(promise).to.be.ok()
-		end)
-
-		it("should invoke the given callback with resolve and reject", function()
-			local callCount = 0
-			local resolveArg
-			local rejectArg
-
-			local promise = Promise.new(function(resolve, reject)
-				callCount = callCount + 1
-				resolveArg = resolve
-				rejectArg = reject
-			end)
-
-			expect(promise).to.be.ok()
-
-			expect(callCount).to.equal(1)
-			expect(resolveArg).to.be.a("function")
-			expect(rejectArg).to.be.a("function")
-			expect(promise._status).to.equal(Promise.Status.Started)
-		end)
-
-		it("should resolve promises on resolve()", function()
-			local callCount = 0
-
-			local promise = Promise.new(function(resolve)
-				callCount = callCount + 1
-				resolve()
-			end)
-
-			expect(promise).to.be.ok()
-			expect(callCount).to.equal(1)
-			expect(promise._status).to.equal(Promise.Status.Resolved)
-		end)
-
-		it("should reject promises on reject()", function()
-			local callCount = 0
-
-			local promise = Promise.new(function(resolve, reject)
-				callCount = callCount + 1
-				reject()
-			end)
-
-			expect(promise).to.be.ok()
-			expect(callCount).to.equal(1)
-			expect(promise._status).to.equal(Promise.Status.Rejected)
-		end)
-
-		it("should reject on error in callback", function()
-			local callCount = 0
-
-			local promise = Promise.new(function()
-				callCount = callCount + 1
-				error("hahah")
-			end)
-
-			expect(promise).to.be.ok()
-			expect(callCount).to.equal(1)
-			expect(promise._status).to.equal(Promise.Status.Rejected)
-			expect(promise._value[1]:find("hahah")).to.be.ok()
-		end)
-	end)
-end

plugin/src/Promise.lua

@@ -1,308 +0,0 @@
---[[
-	An implementation of Promises similar to Promise/A+.
-]]
-
-local PROMISE_DEBUG = false
-
--- If promise debugging is on, use a version of pcall that warns on failure.
--- This is useful for finding errors that happen within Promise itself.
-local wpcall
-if PROMISE_DEBUG then
-	wpcall = function(f, ...)
-		local result = { pcall(f, ...) }
-
-		if not result[1] then
-			warn(result[2])
-		end
-
-		return unpack(result)
-	end
-else
-	wpcall = pcall
-end
-
---[[
-	Creates a function that invokes a callback with correct error handling and
-	resolution mechanisms.
-]]
-local function createAdvancer(callback, resolve, reject)
-	return function(...)
-		local result = { wpcall(callback, ...) }
-		local ok = table.remove(result, 1)
-
-		if ok then
-			resolve(unpack(result))
-		else
-			reject(unpack(result))
-		end
-	end
-end
-
-local function isEmpty(t)
-	return next(t) == nil
-end
-
-local Promise = {}
-Promise.__index = Promise
-
-Promise.Status = {
-	Started = "Started",
-	Resolved = "Resolved",
-	Rejected = "Rejected",
-}
-
---[[
-	Constructs a new Promise with the given initializing callback.
-
-	This is generally only called when directly wrapping a non-promise API into
-	a promise-based version.
-
-	The callback will receive 'resolve' and 'reject' methods, used to start
-	invoking the promise chain.
-
-	For example:
-
-		local function get(url)
-			return Promise.new(function(resolve, reject)
-				spawn(function()
-					resolve(HttpService:GetAsync(url))
-				end)
-			end)
-		end
-
-		get("https://google.com")
-			:andThen(function(stuff)
-				print("Got some stuff!", stuff)
-			end)
-]]
-function Promise.new(callback)
-	local promise = {
-		-- Used to locate where a promise was created
-		_source = debug.traceback(),
-
-		-- A tag to identify us as a promise
-		_type = "Promise",
-
-		_status = Promise.Status.Started,
-
-		-- A table containing a list of all results, whether success or failure.
-		-- Only valid if _status is set to something besides Started
-		_value = nil,
-
-		-- If an error occurs with no observers, this will be set.
-		_unhandledRejection = false,
-
-		-- Queues representing functions we should invoke when we update!
-		_queuedResolve = {},
-		_queuedReject = {},
-	}
-
-	setmetatable(promise, Promise)
-
-	local function resolve(...)
-		promise:_resolve(...)
-	end
-
-	local function reject(...)
-		promise:_reject(...)
-	end
-
-	local ok, err = wpcall(callback, resolve, reject)
-
-	if not ok and promise._status == Promise.Status.Started then
-		reject(err)
-	end
-
-	return promise
-end
-
---[[
-	Create a promise that represents the immediately resolved value.
-]]
-function Promise.resolve(value)
-	return Promise.new(function(resolve)
-		resolve(value)
-	end)
-end
-
---[[
-	Create a promise that represents the immediately rejected value.
-]]
-function Promise.reject(value)
-	return Promise.new(function(_, reject)
-		reject(value)
-	end)
-end
-
---[[
-	Returns a new promise that:
-		* is resolved when all input promises resolve
-		* is rejected if ANY input promises reject
-]]
-function Promise.all(...)
-	error("unimplemented", 2)
-end
-
---[[
-	Is the given object a Promise instance?
-]]
-function Promise.is(object)
-	if type(object) ~= "table" then
-		return false
-	end
-
-	return object._type == "Promise"
-end
-
---[[
-	Creates a new promise that receives the result of this promise.
-
-	The given callbacks are invoked depending on that result.
-]]
-function Promise:andThen(successHandler, failureHandler)
-	self._unhandledRejection = false
-
-	-- Create a new promise to follow this part of the chain
-	return Promise.new(function(resolve, reject)
-		-- Our default callbacks just pass values onto the next promise.
-		-- This lets success and failure cascade correctly!
-
-		local successCallback = resolve
-		if successHandler then
-			successCallback = createAdvancer(successHandler, resolve, reject)
-		end
-
-		local failureCallback = reject
-		if failureHandler then
-			failureCallback = createAdvancer(failureHandler, resolve, reject)
-		end
-
-		if self._status == Promise.Status.Started then
-			-- If we haven't resolved yet, put ourselves into the queue
-			table.insert(self._queuedResolve, successCallback)
-			table.insert(self._queuedReject, failureCallback)
-		elseif self._status == Promise.Status.Resolved then
-			-- This promise has already resolved! Trigger success immediately.
-			successCallback(unpack(self._value))
-		elseif self._status == Promise.Status.Rejected then
-			-- This promise died a terrible death! Trigger failure immediately.
-			failureCallback(unpack(self._value))
-		end
-	end)
-end
-
---[[
-	Used to catch any errors that may have occurred in the promise.
-]]
-function Promise:catch(failureCallback)
-	return self:andThen(nil, failureCallback)
-end
-
---[[
-	Yield until the promise is completed.
-
-	This matches the execution model of normal Roblox functions.
-]]
-function Promise:await()
-	self._unhandledRejection = false
-
-	if self._status == Promise.Status.Started then
-		local result
-		local bindable = Instance.new("BindableEvent")
-
-		self:andThen(function(...)
-			result = {...}
-			bindable:Fire(true)
-		end, function(...)
-			result = {...}
-			bindable:Fire(false)
-		end)
-
-		local ok = bindable.Event:Wait()
-		bindable:Destroy()
-
-		if not ok then
-			error(tostring(result[1]), 2)
-		end
-
-		return unpack(result)
-	elseif self._status == Promise.Status.Resolved then
-		return unpack(self._value)
-	elseif self._status == Promise.Status.Rejected then
-		error(tostring(self._value[1]), 2)
-	end
-end
-
-function Promise:_resolve(...)
-	if self._status ~= Promise.Status.Started then
-		return
-	end
-
-	-- If the resolved value was a Promise, we chain onto it!
-	if Promise.is((...)) then
-		-- Without this warning, arguments sometimes mysteriously disappear
-		if select("#", ...) > 1 then
-			local message = ("When returning a Promise from andThen, extra arguments are discarded! See:\n\n%s"):format(
-				self._source
-			)
-			warn(message)
-		end
-
-		(...):andThen(function(...)
-			self:_resolve(...)
-		end, function(...)
-			self:_reject(...)
-		end)
-
-		return
-	end
-
-	self._status = Promise.Status.Resolved
-	self._value = {...}
-
-	-- We assume that these callbacks will not throw errors.
-	for _, callback in ipairs(self._queuedResolve) do
-		callback(...)
-	end
-end
-
-function Promise:_reject(...)
-	if self._status ~= Promise.Status.Started then
-		return
-	end
-
-	self._status = Promise.Status.Rejected
-	self._value = {...}
-
-	-- If there are any rejection handlers, call those!
-	if not isEmpty(self._queuedReject) then
-		-- We assume that these callbacks will not throw errors.
-		for _, callback in ipairs(self._queuedReject) do
-			callback(...)
-		end
-	else
-		-- At this point, no one was able to observe the error.
-		-- An error handler might still be attached if the error occurred
-		-- synchronously. We'll wait one tick, and if there are still no
-		-- observers, then we should put a message in the console.
-
-		self._unhandledRejection = true
-		local err = tostring((...))
-
-		spawn(function()
-			-- Someone observed the error, hooray!
-			if not self._unhandledRejection then
-				return
-			end
-
-			-- Build a reasonable message
-			local message = ("Unhandled promise rejection:\n\n%s\n\n%s"):format(
-				err,
-				self._source
-			)
-			warn(message)
-		end)
-	end
-end
-
-return Promise

plugin/src/Reconciler.lua

@@ -1,237 +1,216 @@
-local Reconciler = {}
+local t = require(script.Parent.Parent.t)
 
-local function isInit(item, itemFileName)
-	if item and item.type == "dir" then
+local InstanceMap = require(script.Parent.InstanceMap)
+local Logging = require(script.Parent.Logging)
+local setCanonicalProperty = require(script.Parent.setCanonicalProperty)
+local rojoValueToRobloxValue = require(script.Parent.rojoValueToRobloxValue)
+local Types = require(script.Parent.Types)
+
+local Reconciler = {}
+Reconciler.__index = Reconciler
+
+function Reconciler.new()
+	local self = {
+		instanceMap = InstanceMap.new(),
+	}
+
+	return setmetatable(self, Reconciler)
+end
+
+function Reconciler:applyUpdate(requestedIds, virtualInstancesById)
+	-- This function may eventually be asynchronous; it will require calls to
+	-- the server to resolve instances that don't exist yet.
+	local visitedIds = {}
+
+	for _, id in ipairs(requestedIds) do
+		self:__applyUpdatePiece(id, visitedIds, virtualInstancesById)
+	end
+end
+
+local reconcileSchema = Types.ifEnabled(t.tuple(
+	t.map(t.string, Types.VirtualInstance),
+	t.string,
+	t.Instance
+))
+--[[
+	Update an existing instance, including its properties and children, to match
+	the given information.
+]]
+function Reconciler:reconcile(virtualInstancesById, id, instance)
+	assert(reconcileSchema(virtualInstancesById, id, instance))
+
+	local virtualInstance = virtualInstancesById[id]
+
+	-- If an instance changes ClassName, we assume it's very different. That's
+	-- not always the case!
+	if virtualInstance.ClassName ~= instance.ClassName then
+		-- TODO: Preserve existing children instead?
+		local parent = instance.Parent
+		self.instanceMap:destroyId(id)
+		return self:__reify(virtualInstancesById, id, parent)
+	end
+
+	self.instanceMap:insert(id, instance)
+
+	-- Some instances don't like being named, even if their name already matches
+	setCanonicalProperty(instance, "Name", virtualInstance.Name)
+
+	for key, value in pairs(virtualInstance.Properties) do
+		setCanonicalProperty(instance, key, rojoValueToRobloxValue(value))
+	end
+
+	local existingChildren = instance:GetChildren()
+
+	local unvisitedExistingChildren = {}
+	for _, child in ipairs(existingChildren) do
+		unvisitedExistingChildren[child] = true
+	end
+
+	for _, childId in ipairs(virtualInstance.Children) do
+		local childData = virtualInstancesById[childId]
+
+		local existingChildInstance
+		for instance in pairs(unvisitedExistingChildren) do
+			local ok, name, className = pcall(function()
+				return instance.Name, instance.ClassName
+			end)
+
+			if ok then
+				if name == childData.Name and className == childData.ClassName then
+					existingChildInstance = instance
+					break
+				end
+			end
+		end
+
+		if existingChildInstance ~= nil then
+			unvisitedExistingChildren[existingChildInstance] = nil
+			self:reconcile(virtualInstancesById, childId, existingChildInstance)
+		else
+			self:__reify(virtualInstancesById, childId, instance)
+		end
+	end
+
+	local shouldClearUnknown = self:__shouldClearUnknownChildren(virtualInstance)
+
+	for existingChildInstance in pairs(unvisitedExistingChildren) do
+		local childId = self.instanceMap.fromInstances[existingChildInstance]
+
+		if childId == nil then
+			if shouldClearUnknown then
+				existingChildInstance:Destroy()
+			end
+		else
+			self.instanceMap:destroyInstance(existingChildInstance)
+		end
+	end
+
+	-- The root instance of a project won't have a parent, like the DataModel,
+	-- so we need to be careful here.
+	if virtualInstance.Parent ~= nil then
+		local parent = self.instanceMap.fromIds[virtualInstance.Parent]
+
+		if parent == nil then
+			Logging.info("Instance %s wanted parent of %s", tostring(id), tostring(virtualInstance.Parent))
+			error("Rojo bug: During reconciliation, an instance referred to an instance ID as parent that does not exist.")
+		end
+
+		-- Some instances, like services, don't like having their Parent
+		-- property poked, even if we're setting it to the same value.
+		setCanonicalProperty(instance, "Parent", parent)
+	end
+
+	return instance
+end
+
+function Reconciler:__shouldClearUnknownChildren(virtualInstance)
+	if virtualInstance.Metadata ~= nil then
+		return not virtualInstance.Metadata.ignoreUnknownInstances
+	else
+		return true
+	end
+end
+
+local reifySchema = Types.ifEnabled(t.tuple(
+	t.map(t.string, Types.VirtualInstance),
+	t.string,
+	t.Instance
+))
+
+function Reconciler:__reify(virtualInstancesById, id, parent)
+	assert(reifySchema(virtualInstancesById, id, parent))
+
+	local virtualInstance = virtualInstancesById[id]
+
+	local instance = Instance.new(virtualInstance.ClassName)
+
+	for key, value in pairs(virtualInstance.Properties) do
+		setCanonicalProperty(instance, key, rojoValueToRobloxValue(value))
+	end
+
+	setCanonicalProperty(instance, "Name", virtualInstance.Name)
+
+	for _, childId in ipairs(virtualInstance.Children) do
+		self:__reify(virtualInstancesById, childId, instance)
+	end
+
+	setCanonicalProperty(instance, "Parent", parent)
+	self.instanceMap:insert(id, instance)
+
+	return instance
+end
+
+local applyUpdatePieceSchema = Types.ifEnabled(t.tuple(
+	t.string,
+	t.map(t.string, t.boolean),
+	t.map(t.string, Types.VirtualInstance)
+))
+
+function Reconciler:__applyUpdatePiece(id, visitedIds, virtualInstancesById)
+	assert(applyUpdatePieceSchema(id, visitedIds, virtualInstancesById))
+
+	if visitedIds[id] then
 		return
 	end
 
-	return not not itemFileName:find("^init%.")
+	visitedIds[id] = true
+
+	local virtualInstance = virtualInstancesById[id]
+	local instance = self.instanceMap.fromIds[id]
+
+	-- The instance was deleted in this update
+	if virtualInstance == nil then
+		self.instanceMap:destroyId(id)
+		return
+	end
+
+	-- An instance we know about was updated
+	if instance ~= nil then
+		self:reconcile(virtualInstancesById, id, instance)
+		return instance
+	end
+
+	-- If the instance's parent already exists, we can stick it there
+	local parentInstance = self.instanceMap.fromIds[virtualInstance.Parent]
+	if parentInstance ~= nil then
+		self:__reify(virtualInstancesById, id, parentInstance)
+		return
+	end
+
+	-- Otherwise, we can check if this response payload contained the parent and
+	-- work from there instead.
+	local parentData = virtualInstancesById[virtualInstance.Parent]
+	if parentData ~= nil then
+		if visitedIds[virtualInstance.Parent] then
+			error("Rojo bug: An instance was present and marked as visited but its instance was missing")
+		end
+
+		self:__applyUpdatePiece(virtualInstance.Parent, visitedIds, virtualInstancesById)
+		return
+	end
+
+	Logging.trace("Instance ID %s, parent ID %s", tostring(id), tostring(virtualInstance.Parent))
+	error("Rojo NYI: Instances with parents that weren't mentioned in an update payload")
 end
 
-local function findInit(item)
-	if item.type ~= "dir" then
-		return nil, nil
-	end
-
-	for childFileName, childItem in pairs(item.children) do
-		if isInit(childItem, childFileName) then
-			return childItem, childFileName
-		end
-	end
-
-	return nil, nil
-end
-
-local function itemToName(item, fileName)
-	if item and item.type == "dir" then
-		return fileName, "Folder"
-	elseif item and item.type == "file" or not item then
-		if fileName:find("%.server%.lua$") then
-			return fileName:match("^(.-)%.server%.lua$"), "Script"
-		elseif fileName:find("%.client%.lua$") then
-			return fileName:match("^(.-)%.client%.lua$"), "LocalScript"
-		elseif fileName:find("%.lua") then
-			return fileName:match("^(.-)%.lua$"), "ModuleScript"
-		else
-			return fileName, "StringValue"
-		end
-	else
-		error("unknown item type " .. tostring(item.type))
-	end
-end
-
-local function setValues(rbx, item, fileName)
-	local _, className = itemToName(item, fileName)
-
-	if className:find("Script") then
-		rbx.Source = item.contents
-	else
-		rbx.Value = item.contents
-	end
-end
-
-function Reconciler._reifyShallow(item, fileName)
-	if item.type == "dir" then
-		local initItem, initFileName = findInit(item)
-
-		if initItem then
-			local rbx = Reconciler._reify(initItem, initFileName)
-			rbx.Name = fileName
-
-			return rbx
-		else
-			local rbx = Instance.new("Folder")
-			rbx.Name = fileName
-
-			return rbx
-		end
-	elseif item.type == "file" then
-		local objectName, className = itemToName(item, fileName)
-
-		local rbx = Instance.new(className)
-		rbx.Name = objectName
-
-		setValues(rbx, item, fileName)
-
-		return rbx
-	else
-		error("unknown item type " .. tostring(item.type))
-	end
-end
-
-function Reconciler._reify(item, fileName, parent)
-	local rbx = Reconciler._reifyShallow(item, fileName)
-
-	if item.type == "dir" then
-		for childFileName, childItem in pairs(item.children) do
-			if not isInit(childItem, childFileName) then
-				local childRbx = Reconciler._reify(childItem, childFileName)
-				childRbx.Parent = rbx
-			end
-		end
-	end
-
-	rbx.Parent = parent
-
-	return rbx
-end
-
-function Reconciler.reconcile(rbx, item, fileName, parent)
-	-- Item was deleted!
-	if not item then
-		if isInit(item, fileName) then
-			if not parent then
-				return
-			end
-
-			-- Un-usurp parent!
-			local newParent = Instance.new("Folder")
-			newParent.Name = parent.Name
-
-			for _, child in ipairs(parent:GetChildren()) do
-				child.Parent = newParent
-			end
-
-			newParent.Parent = parent.Parent
-			parent:Destroy()
-
-			return
-		else
-			if rbx then
-				rbx:Destroy()
-			end
-
-			return
-		end
-	end
-
-	if item.type == "dir" then
-		-- Folder was created!
-		if not rbx then
-			return Reconciler._reify(item, fileName, parent)
-		end
-
-		local initItem, initFileName = findInit(item)
-
-		if initItem then
-			local _, initClassName = itemToName(initItem, initFileName)
-
-			if rbx.ClassName == initClassName then
-				setValues(rbx, initItem, initFileName)
-			else
-				rbx:Destroy()
-				return Reconciler._reify(item, fileName, parent)
-			end
-		else
-			if rbx.ClassName ~= "Folder" then
-				rbx:Destroy()
-				return Reconciler._reify(item, fileName, parent)
-			end
-		end
-
-		local visitedChildren = {}
-
-		for childFileName, childItem in pairs(item.children) do
-			if not isInit(childItem, childFileName) then
-				local childName = itemToName(childItem, childFileName)
-
-				visitedChildren[childName] = true
-
-				Reconciler.reconcile(rbx:FindFirstChild(childName), childItem, childFileName, rbx)
-			end
-		end
-
-		for _, childRbx in ipairs(rbx:GetChildren()) do
-			-- Child was deleted!
-			if not visitedChildren[childRbx.Name] then
-				Reconciler.reconcile(childRbx, nil, nil)
-			end
-		end
-
-		return rbx
-	elseif item.type == "file" then
-		if isInit(item, fileName) then
-			-- Usurp our container!
-			local _, className = itemToName(item, fileName)
-
-			if parent.ClassName == className then
-				rbx = parent
-			else
-				rbx = Reconciler._reify(item, fileName, parent.Parent)
-				rbx.Name = parent.Name
-
-				for _, child in ipairs(parent:GetChildren()) do
-					child.Parent = rbx
-				end
-
-				parent:Destroy()
-			end
-
-			setValues(rbx, item, fileName)
-
-			return rbx
-		else
-			if not rbx then
-				return Reconciler._reify(item, fileName, parent)
-			end
-
-			local _, className = itemToName(item, fileName)
-
-			if rbx.ClassName ~= className then
-				rbx:Destroy()
-				return Reconciler._reify(item, fileName, parent)
-			end
-
-			setValues(rbx, item, fileName)
-
-			return rbx
-		end
-	else
-		error("unknown item type " .. tostring(item.type))
-	end
-end
-
-function Reconciler.reconcileRoute(route, item)
-	local location = game
-
-	for i = 1, #route - 1 do
-		local piece = route[i]
-		local newLocation = location:FindFirstChild(piece)
-
-		if not newLocation then
-			newLocation = Instance.new("Folder")
-			newLocation.Name = piece
-			newLocation.Parent = location
-		end
-
-		location = newLocation
-	end
-
-	local fileName = route[#route]
-
-	local name = itemToName(item, fileName)
-	local rbx = location:FindFirstChild(name)
-	Reconciler.reconcile(rbx, item, fileName, location)
-end
-
-return Reconciler
+return Reconciler

plugin/src/Reconciler.spec.lua

@@ -0,0 +1,218 @@
+local Reconciler = require(script.Parent.Reconciler)
+
+return function()
+	it("should leave instances alone if there's nothing specified", function()
+		local instance = Instance.new("Folder")
+		instance.Name = "TestFolder"
+
+		local instanceId = "test-id"
+		local virtualInstancesById = {
+			[instanceId] = {
+				Name = "TestFolder",
+				ClassName = "Folder",
+				Children = {},
+				Properties = {},
+			},
+		}
+
+		local reconciler = Reconciler.new()
+		reconciler:reconcile(virtualInstancesById, instanceId, instance)
+	end)
+
+	it("should assign names from virtual instances", function()
+		local instance = Instance.new("Folder")
+		instance.Name = "InitialName"
+
+		local instanceId = "test-id"
+		local virtualInstancesById = {
+			[instanceId] = {
+				Name = "NewName",
+				ClassName = "Folder",
+				Children = {},
+				Properties = {},
+			},
+		}
+
+		local reconciler = Reconciler.new()
+		reconciler:reconcile(virtualInstancesById, instanceId, instance)
+
+		expect(instance.Name).to.equal("NewName")
+	end)
+
+	it("should assign properties from virtual instances", function()
+		local instance = Instance.new("IntValue")
+		instance.Name = "TestValue"
+		instance.Value = 5
+
+		local instanceId = "test-id"
+		local virtualInstancesById = {
+			[instanceId] = {
+				Name = "TestValue",
+				ClassName = "IntValue",
+				Children = {},
+				Properties = {
+					Value = {
+						Type = "Int32",
+						Value = 9
+					}
+				},
+			},
+		}
+
+		local reconciler = Reconciler.new()
+		reconciler:reconcile(virtualInstancesById, instanceId, instance)
+
+		expect(instance.Value).to.equal(9)
+	end)
+
+	it("should wipe unknown children by default", function()
+		local parent = Instance.new("Folder")
+		parent.Name = "Parent"
+
+		local child = Instance.new("Folder")
+		child.Name = "Child"
+
+		local parentId = "test-id"
+		local virtualInstancesById = {
+			[parentId] = {
+				Name = "Parent",
+				ClassName = "Folder",
+				Children = {},
+				Properties = {},
+			},
+		}
+
+		local reconciler = Reconciler.new()
+		reconciler:reconcile(virtualInstancesById, parentId, parent)
+
+		expect(#parent:GetChildren()).to.equal(0)
+	end)
+
+	it("should preserve unknown children if ignoreUnknownInstances is set", function()
+		local parent = Instance.new("Folder")
+		parent.Name = "Parent"
+
+		local child = Instance.new("Folder")
+		child.Parent = parent
+		child.Name = "Child"
+
+		local parentId = "test-id"
+		local virtualInstancesById = {
+			[parentId] = {
+				Name = "Parent",
+				ClassName = "Folder",
+				Children = {},
+				Properties = {},
+				Metadata = {
+					ignoreUnknownInstances = true,
+				},
+			},
+		}
+
+		local reconciler = Reconciler.new()
+		reconciler:reconcile(virtualInstancesById, parentId, parent)
+
+		expect(child.Parent).to.equal(parent)
+		expect(#parent:GetChildren()).to.equal(1)
+	end)
+
+	it("should remove known removed children", function()
+		local parent = Instance.new("Folder")
+		parent.Name = "Parent"
+
+		local child = Instance.new("Folder")
+		child.Parent = parent
+		child.Name = "Child"
+
+		local parentId = "parent-id"
+		local childId = "child-id"
+
+		local reconciler = Reconciler.new()
+
+		local virtualInstancesById = {
+			[parentId] = {
+				Name = "Parent",
+				ClassName = "Folder",
+				Children = {childId},
+				Properties = {},
+			},
+			[childId] = {
+				Name = "Child",
+				ClassName = "Folder",
+				Children = {},
+				Properties = {},
+			},
+		}
+		reconciler:reconcile(virtualInstancesById, parentId, parent)
+
+		expect(child.Parent).to.equal(parent)
+		expect(#parent:GetChildren()).to.equal(1)
+
+		local newVirtualInstances = {
+			[parentId] = {
+				Name = "Parent",
+				ClassName = "Folder",
+				Children = {},
+				Properties = {},
+			},
+			[childId] = nil,
+		}
+		reconciler:reconcile(newVirtualInstances, parentId, parent)
+
+		expect(child.Parent).to.equal(nil)
+		expect(#parent:GetChildren()).to.equal(0)
+	end)
+
+	it("should remove known removed children if ignoreUnknownInstances is set", function()
+		local parent = Instance.new("Folder")
+		parent.Name = "Parent"
+
+		local child = Instance.new("Folder")
+		child.Parent = parent
+		child.Name = "Child"
+
+		local parentId = "parent-id"
+		local childId = "child-id"
+
+		local reconciler = Reconciler.new()
+
+		local virtualInstancesById = {
+			[parentId] = {
+				Name = "Parent",
+				ClassName = "Folder",
+				Children = {childId},
+				Properties = {},
+				Metadata = {
+					ignoreUnknownInstances = true,
+				},
+			},
+			[childId] = {
+				Name = "Child",
+				ClassName = "Folder",
+				Children = {},
+				Properties = {},
+			},
+		}
+		reconciler:reconcile(virtualInstancesById, parentId, parent)
+
+		expect(child.Parent).to.equal(parent)
+		expect(#parent:GetChildren()).to.equal(1)
+
+		local newVirtualInstances = {
+			[parentId] = {
+				Name = "Parent",
+				ClassName = "Folder",
+				Children = {},
+				Properties = {},
+				Metadata = {
+					ignoreUnknownInstances = true,
+				},
+			},
+			[childId] = nil,
+		}
+		reconciler:reconcile(newVirtualInstances, parentId, parent)
+
+		expect(child.Parent).to.equal(nil)
+		expect(#parent:GetChildren()).to.equal(0)
+	end)
+end

plugin/src/Server.lua

@@ -1,69 +0,0 @@
-local HttpService = game:GetService("HttpService")
-
-local Server = {}
-Server.__index = Server
-
---[[
-	Create a new Server using the given HTTP implementation and replacer.
-
-	If the context becomes invalid, `replacer` will be invoked with a new
-	context that should be suitable to replace this one.
-
-	Attempting to invoke methods on an invalid conext will throw errors!
-]]
-function Server.connect(http)
-	local context = {
-		http = http,
-		serverId = nil,
-		currentTime = 0,
-	}
-
-	setmetatable(context, Server)
-
-	return context:_start()
-end
-
-function Server:_start()
-	return self:getInfo()
-		:andThen(function(response)
-			self.serverId = response.serverId
-			self.currentTime = response.currentTime
-
-			return self
-		end)
-end
-
-function Server:getInfo()
-	return self.http:get("/")
-		:andThen(function(response)
-			response = response:json()
-
-			return response
-		end)
-end
-
-function Server:read(paths)
-	local body = HttpService:JSONEncode(paths)
-
-	return self.http:post("/read", body)
-		:andThen(function(response)
-			response = response:json()
-
-			return response.items
-		end)
-end
-
-function Server:getChanges()
-	local url = ("/changes/%f"):format(self.currentTime)
-
-	return self.http:get(url)
-		:andThen(function(response)
-			response = response:json()
-
-			self.currentTime = response.currentTime
-
-			return response.changes
-		end)
-end
-
-return Server

plugin/src/Session.lua

@@ -0,0 +1,97 @@
+local Rojo = script:FindFirstAncestor("Rojo")
+
+local Promise = require(Rojo.Promise)
+
+local ApiContext = require(script.Parent.ApiContext)
+local Reconciler = require(script.Parent.Reconciler)
+
+local Session = {}
+Session.__index = Session
+
+function Session.new(config)
+	local remoteUrl = ("http://%s:%s"):format(config.address, config.port)
+	local api = ApiContext.new(remoteUrl)
+
+	local self = {
+		onError = config.onError,
+		disconnected = false,
+		reconciler = Reconciler.new(),
+		api = api,
+	}
+
+	api:connect()
+		:andThen(function()
+			if self.disconnected then
+				return
+			end
+
+			return api:read({api.rootInstanceId})
+		end)
+		:andThen(function(response)
+			if self.disconnected then
+				return
+			end
+
+			self.reconciler:reconcile(response.instances, api.rootInstanceId, game)
+			return self:__processMessages()
+		end)
+		:catch(function(message)
+			self.disconnected = true
+			self.onError(message)
+		end)
+
+	return not self.disconnected, setmetatable(self, Session)
+end
+
+function Session:__processMessages()
+	if self.disconnected then
+		return Promise.resolve()
+	end
+
+	return self.api:retrieveMessages()
+		:andThen(function(messages)
+			local promise = Promise.resolve(nil)
+
+			for _, message in ipairs(messages) do
+				promise = promise:andThen(function()
+					return self:__onMessage(message)
+				end)
+			end
+
+			return promise
+		end)
+		:andThen(function()
+			return self:__processMessages()
+		end)
+end
+
+function Session:__onMessage(message)
+	if self.disconnected then
+		return Promise.resolve()
+	end
+
+	local requestedIds = {}
+
+	for _, id in ipairs(message.added) do
+		table.insert(requestedIds, id)
+	end
+
+	for _, id in ipairs(message.updated) do
+		table.insert(requestedIds, id)
+	end
+
+	for _, id in ipairs(message.removed) do
+		table.insert(requestedIds, id)
+	end
+
+	return self.api:read(requestedIds)
+		:andThen(function(response)
+			return self.reconciler:applyUpdate(requestedIds, response.instances)
+		end)
+end
+
+function Session:disconnect()
+	self.disconnected = true
+end
+
+return Session

plugin/src/Theme.lua

@@ -0,0 +1,20 @@
+local Theme = {
+	ButtonFont = Enum.Font.GothamSemibold,
+	InputFont = Enum.Font.Code,
+	TitleFont = Enum.Font.GothamBold,
+	MainFont = Enum.Font.Gotham,
+
+	AccentColor = Color3.fromRGB(136, 0, 27),
+	AccentLightColor = Color3.fromRGB(210, 145, 157),
+	PrimaryColor = Color3.fromRGB(20, 20, 20),
+	SecondaryColor = Color3.fromRGB(235, 235, 235),
+	LightTextColor = Color3.fromRGB(140, 140, 140),
+}
+
+setmetatable(Theme, {
+	__index = function(_, key)
+		error(("%s is not a valid member of Theme"):format(key), 2)
+	end
+})
+
+return Theme

plugin/src/Types.lua

@@ -0,0 +1,36 @@
+local t = require(script.Parent.Parent.t)
+
+local DevSettings = require(script.Parent.DevSettings)
+
+local VirtualValue = t.interface({
+	Type = t.string,
+	Value = t.optional(t.any),
+})
+
+local VirtualMetadata = t.interface({
+	ignoreUnknownInstances = t.optional(t.boolean),
+})
+
+local VirtualInstance = t.interface({
+	Name = t.string,
+	ClassName = t.string,
+	Properties = t.map(t.string, VirtualValue),
+	Metadata = t.optional(VirtualMetadata)
+})
+
+local function ifEnabled(innerCheck)
+	return function(...)
+		if DevSettings:shouldTypecheck() then
+			return innerCheck(...)
+		else
+			return true
+		end
+	end
+end
+
+return {
+	ifEnabled = ifEnabled,
+	VirtualInstance = VirtualInstance,
+	VirtualMetadata = VirtualMetadata,
+	VirtualValue = VirtualValue,
+}

plugin/src/Version.lua

@@ -0,0 +1,46 @@
+local function compare(a, b)
+	if a > b then
+		return 1
+	elseif a < b then
+		return -1
+	end
+
+	return 0
+end
+
+local Version = {}
+
+--[[
+	Compares two versions of the form {major, minor, revision}.
+
+	If a is newer than b, 1.
+	If a is older than b, -1.
+	If a and b are the same, 0.
+]]
+function Version.compare(a, b)
+	local major = compare(a[1], b[1])
+	local minor = compare(a[2] or 0, b[2] or 0)
+	local revision = compare(a[3] or 0, b[3] or 0)
+
+	if major ~= 0 then
+		return major
+	end
+
+	if minor ~= 0 then
+		return minor
+	end
+
+	return revision
+end
+
+function Version.display(version)
+	local output = ("%d.%d.%d"):format(version[1], version[2], version[3])
+
+	if version[4] ~= nil then
+		output = output .. version[4]
+	end
+
+	return output
+end
+
+return Version

plugin/src/Version.spec.lua

@@ -0,0 +1,28 @@
+return function()
+	local Version = require(script.Parent.Version)
+
+	it("should compare equal versions", function()
+		expect(Version.compare({1, 2, 3}, {1, 2, 3})).to.equal(0)
+		expect(Version.compare({0, 4, 0}, {0, 4})).to.equal(0)
+		expect(Version.compare({0, 0, 123}, {0, 0, 123})).to.equal(0)
+		expect(Version.compare({26}, {26})).to.equal(0)
+		expect(Version.compare({26, 42}, {26, 42})).to.equal(0)
+		expect(Version.compare({1, 0, 0}, {1})).to.equal(0)
+	end)
+
+	it("should compare newer, older versions", function()
+		expect(Version.compare({1}, {0})).to.equal(1)
+		expect(Version.compare({1, 1}, {1, 0})).to.equal(1)
+	end)
+
+	it("should compare different major versions", function()
+		expect(Version.compare({1, 3, 2}, {2, 2, 1})).to.equal(-1)
+		expect(Version.compare({1, 2}, {2, 1})).to.equal(-1)
+		expect(Version.compare({1}, {2})).to.equal(-1)
+	end)
+
+	it("should compare different minor versions", function()
+		expect(Version.compare({1, 2, 3}, {1, 3, 2})).to.equal(-1)
+		expect(Version.compare({50, 1}, {50, 2})).to.equal(-1)
+	end)
+end

plugin/src/init.server.lua

@@ -0,0 +1,17 @@
+if not plugin then
+	return
+end
+
+local Roact = require(script.Parent.Roact)
+
+local App = require(script.Components.App)
+
+local app = Roact.createElement(App, {
+	plugin = plugin,
+})
+
+local tree = Roact.mount(app, game:GetService("CoreGui"), "Rojo UI")
+
+plugin.Unloading:Connect(function()
+	Roact.unmount(tree)
+end)

plugin/src/joinBindings.lua

@@ -0,0 +1,34 @@
+--[[
+	joinBindings is a crazy hack that allows combining multiple Roact bindings
+	in the same spirit as `map`.
+
+	It's implemented in terms of Roact internals that will probably break at
+	some point; please don't do that or use this module in your own code!
+]]
+
+local Binding = require(script:FindFirstAncestor("Rojo").Roact.Binding)
+
+local function evaluate(fun, bindings)
+	local input = {}
+
+	for index, binding in ipairs(bindings) do
+		input[index] = binding:getValue()
+	end
+
+	return fun(unpack(input, 1, #bindings))
+end
+
+local function joinBindings(bindings, joinFunction)
+	local initialValue = evaluate(joinFunction, bindings)
+	local binding, setValue = Binding.create(initialValue)
+
+	for _, binding in ipairs(bindings) do
+		Binding.subscribe(binding, function()
+			setValue(evaluate(joinFunction, bindings))
+		end)
+	end
+
+	return binding
+end
+
+return joinBindings

plugin/src/preloadAssets.lua

@@ -0,0 +1,28 @@
+local ContentProvider = game:GetService("ContentProvider")
+
+local Logging = require(script.Parent.Logging)
+local Assets = require(script.Parent.Assets)
+
+local function preloadAssets()
+	local contentUrls = {}
+
+	for _, sprite in pairs(Assets.Sprites) do
+		table.insert(contentUrls, sprite.asset)
+	end
+
+	for _, slice in pairs(Assets.Slices) do
+		table.insert(contentUrls, slice.asset)
+	end
+
+	for _, url in pairs(Assets.Images) do
+		table.insert(contentUrls, url)
+	end
+
+	Logging.trace("Preloading assets: %s", table.concat(contentUrls, ", "))
+
+	coroutine.wrap(function()
+		ContentProvider:PreloadAsync(contentUrls)
+	end)()
+end
+
+return preloadAssets

plugin/src/rojoValueToRobloxValue.lua

@@ -0,0 +1,38 @@
+local primitiveTypes = {
+	Bool = true,
+	Enum = true,
+	Float32 = true,
+	Float64 = true,
+	Int32 = true,
+	Int64 = true,
+	String = true,
+}
+
+local directConstructors = {
+	CFrame = CFrame.new,
+	Color3 = Color3.new,
+	Color3uint8 = Color3.fromRGB,
+	Rect = Rect.new,
+	UDim = UDim.new,
+	UDim2 = UDim2.new,
+	Vector2 = Vector2.new,
+	Vector2int16 = Vector2int16.new,
+	Vector3 = Vector3.new,
+	Vector3int16 = Vector3int16.new,
+}
+
+local function rojoValueToRobloxValue(value)
+	if primitiveTypes[value.Type] then
+		return value.Value
+	end
+
+	local constructor = directConstructors[value.Type]
+	if constructor ~= nil then
+		return constructor(unpack(value.Value))
+	end
+
+	local errorMessage = ("The Rojo plugin doesn't know how to handle values of type %q yet!"):format(tostring(value.Type))
+	error(errorMessage)
+end
+
+return rojoValueToRobloxValue

plugin/src/rojoValueToRobloxValue.spec.lua

@@ -0,0 +1,40 @@
+local rojoValueToRobloxValue = require(script.Parent.rojoValueToRobloxValue)
+
+return function()
+	it("should convert primitives", function()
+		local inputString = {
+			Type = "String",
+			Value = "Hello, world!",
+		}
+
+		local inputFloat32 = {
+			Type = "Float32",
+			Value = 12341.512,
+		}
+
+		expect(rojoValueToRobloxValue(inputString)).to.equal(inputString.Value)
+		expect(rojoValueToRobloxValue(inputFloat32)).to.equal(inputFloat32.Value)
+	end)
+
+	it("should convert properties with direct constructors", function()
+		local inputColor3 = {
+			Type = "Color3",
+			Value = {0, 1, 0.5},
+		}
+		local outputColor3 = Color3.new(0, 1, 0.5)
+
+		local inputCFrame = {
+			Type = "CFrame",
+			Value = {
+				1, 2, 3,
+				4, 5, 6,
+				7, 8, 9,
+				10, 11, 12,
+			},
+		}
+		local outputCFrame = CFrame.new(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
+
+		expect(rojoValueToRobloxValue(inputColor3)).to.equal(outputColor3)
+		expect(rojoValueToRobloxValue(inputCFrame)).to.equal(outputCFrame)
+	end)
+end

plugin/src/runTests.lua

@@ -0,0 +1,4 @@
+return function()
+	local TestEZ = require(script.Parent.Parent.TestEZ)
+	TestEZ.TestBootstrap:run(script.Parent)
+end

plugin/src/setCanonicalProperty.lua

@@ -0,0 +1,57 @@
+local Logging = require(script.Parent.Logging)
+
+--[[
+	Attempts to set a property on the given instance.
+
+	This method deals in terms of what Rojo calls 'canonical properties', which
+	don't necessarily exist either in serialization or in Lua-reflected APIs,
+	but may be present in the API dump.
+
+	Ideally, canonical properties map 1:1 with properties we can assign, but in
+	some cases like LocalizationTable contents and CollectionService tags, we
+	have to read/write properties a little differently.
+]]
+local function setCanonicalProperty(instance, key, value)
+	-- The 'Contents' property of LocalizationTable isn't directly exposed, but
+	-- has corresponding (deprecated) getters and setters.
+	if instance.ClassName == "LocalizationTable" and key == "Contents" then
+		instance:SetContents(value)
+		return
+	end
+
+	-- Temporary workaround for fixing issue #141 in this specific case.
+	if instance.ClassName == "Lighting" and key == "Technology" then
+		return
+	end
+
+	-- If we don't have permissions to access this value at all, we can skip it.
+	local readSuccess, existingValue = pcall(function()
+		return instance[key]
+	end)
+
+	if not readSuccess then
+		-- An error will be thrown if there was a permission issue or if the
+		-- property doesn't exist. In the latter case, we should tell the user
+		-- because it's probably their fault.
+		if existingValue:find("lacking permission") then
+			Logging.trace("Permission error reading property %s on class %s", tostring(key), instance.ClassName)
+			return
+		else
+			error(("Invalid property %s on class %s: %s"):format(tostring(key), instance.ClassName, existingValue), 2)
+		end
+	end
+
+	local writeSuccess, err = pcall(function()
+		if existingValue ~= value then
+			instance[key] = value
+		end
+	end)
+
+	if not writeSuccess then
+		error(("Cannot set property %s on class %s: %s"):format(tostring(key), instance.ClassName, err), 2)
+	end
+
+	return true
+end
+
+return setCanonicalProperty

plugin/testBootstrap.server.lua

@@ -0,0 +1,19 @@
+local ReplicatedStorage = game:GetService("ReplicatedStorage")
+
+local TestEZ = require(ReplicatedStorage.TestEZ)
+
+local Rojo = ReplicatedStorage.Rojo
+
+local DevSettings = require(Rojo.Plugin.DevSettings)
+
+local setDevSettings = not DevSettings:hasChangedValues()
+
+if setDevSettings then
+	DevSettings:createTestSettings()
+end
+
+TestEZ.TestBootstrap:run({Rojo.Plugin})
+
+if setDevSettings then
+	DevSettings:resetValues()
+end

plugin/tests/empty.lua

@@ -0,0 +1,5 @@
+local ReplicatedStorage = game:GetService("ReplicatedStorage")
+
+local Session = require(ReplicatedStorage.Modules.Rojo.Session)
+
+Session.new()

rojo-e2e/Cargo.toml

@@ -0,0 +1,6 @@
+[package]
+name = "rojo-e2e"
+version = "0.1.0"
+authors = ["Lucien Greathouse <me@lpghatguy.com>"]
+
+[dependencies]

rojo-e2e/README.md

@@ -0,0 +1,2 @@
+# Rojo End-to-End
+This is a WIP test runner designed for Rojo. It will eventually start up the Rojo server and plugin and test functionality end-to-end.

rojo-e2e/src/lib.rs

@@ -0,0 +1,32 @@
+use std::{
+    path::Path,
+    process::Command,
+    thread,
+    time::Duration,
+};
+
+fn main() {
+    let plugin_path = Path::new("../plugin");
+    let server_path = Path::new("../server");
+    let tests_path = Path::new("../tests");
+
+    let server = Command::new("cargo")
+        .args(&["run", "--", "serve", "../test-projects/empty"])
+        .current_dir(server_path)
+        .spawn();
+
+    thread::sleep(Duration::from_millis(1000));
+
+    // TODO: Wait for server to start responding on the right port
+
+    let test_client = Command::new("lua")
+        .args(&["runTest.lua", "tests/empty.lua"])
+        .current_dir(plugin_path)
+        .spawn();
+
+    thread::sleep(Duration::from_millis(300));
+
+    // TODO: Collect output from the client for success/failure?
+
+    println!("Dying!");
+}

rojo.json

@@ -1,10 +0,0 @@
-{
-  "name": "rojo",
-  "servePort": 8081,
-  "partitions": {
-    "test-folder": {
-      "path": "test-folder",
-      "target": "ReplicatedStorage.test"
-    }
-  }
-}

server/Cargo.toml

@@ -0,0 +1,50 @@
+[package]
+name = "rojo"
+version = "0.5.0-alpha.9"
+authors = ["Lucien Greathouse <me@lpghatguy.com>"]
+description = "A tool to create robust Roblox projects"
+license = "MIT"
+repository = "https://github.com/LPGhatguy/rojo"
+edition = "2018"
+
+[features]
+default = []
+server-plugins = []
+
+[lib]
+name = "librojo"
+path = "src/lib.rs"
+
+[[bin]]
+name = "rojo"
+path = "src/bin.rs"
+
+[dependencies]
+clap = "2.27"
+csv = "1.0"
+env_logger = "0.6"
+failure = "0.1.3"
+futures = "0.1"
+hyper = "0.12"
+log = "0.4"
+maplit = "1.0.1"
+notify = "4.0"
+rbx_binary = "0.4.0"
+rbx_dom_weak = "1.3.0"
+rbx_xml = "0.6.0"
+rbx_reflection = "2.0.374"
+regex = "1.0"
+reqwest = "0.9.5"
+rlua = "0.16"
+ritz = "0.1.0"
+serde = "1.0"
+serde_derive = "1.0"
+serde_json = "1.0"
+uuid = { version = "0.7", features = ["v4", "serde"] }
+
+[dev-dependencies]
+tempfile = "3.0"
+walkdir = "2.1"
+lazy_static = "1.2"
+pretty_assertions = "0.6.1"
+paste = "0.1"

server/README.md

@@ -0,0 +1,4 @@
+# Rojo Server
+This is the source to the Rojo server.
+
+Documentation is WIP.