Implement Syncback to support converting Roblox files to a Rojo project (#937)

This is a very large commit.
Consider checking the linked PR for more information.
This commit is contained in:
Micah
2025-11-19 09:21:33 -08:00
committed by GitHub
parent 071b6e7e23
commit 9b5a07191b
239 changed files with 5325 additions and 225 deletions

View File

@@ -28,24 +28,34 @@ use anyhow::Context;
use memofs::{IoResultExt, Vfs};
use serde::{Deserialize, Serialize};
use crate::snapshot::{InstanceContext, InstanceSnapshot, SyncRule};
use crate::{glob::Glob, project::DEFAULT_PROJECT_NAMES};
use crate::{
glob::Glob,
project::DEFAULT_PROJECT_NAMES,
syncback::{SyncbackReturn, SyncbackSnapshot},
};
use crate::{
snapshot::{InstanceContext, InstanceSnapshot, SyncRule},
syncback::validate_file_name,
};
use self::{
csv::{snapshot_csv, snapshot_csv_init},
dir::snapshot_dir,
csv::{snapshot_csv, snapshot_csv_init, syncback_csv, syncback_csv_init},
dir::{snapshot_dir, syncback_dir},
json::snapshot_json,
json_model::snapshot_json_model,
lua::{snapshot_lua, snapshot_lua_init, ScriptType},
project::snapshot_project,
rbxm::snapshot_rbxm,
rbxmx::snapshot_rbxmx,
json_model::{snapshot_json_model, syncback_json_model},
lua::{snapshot_lua, snapshot_lua_init, syncback_lua, syncback_lua_init},
project::{snapshot_project, syncback_project},
rbxm::{snapshot_rbxm, syncback_rbxm},
rbxmx::{snapshot_rbxmx, syncback_rbxmx},
toml::snapshot_toml,
txt::snapshot_txt,
txt::{snapshot_txt, syncback_txt},
yaml::snapshot_yaml,
};
pub use self::{project::snapshot_project_node, util::emit_legacy_scripts_default};
pub use self::{
lua::ScriptType, project::snapshot_project_node, util::emit_legacy_scripts_default,
util::PathExt,
};
/// Returns an `InstanceSnapshot` for the provided path.
/// This will inspect the path and find the appropriate middleware for it,
@@ -63,41 +73,14 @@ pub fn snapshot_from_vfs(
};
if meta.is_dir() {
if let Some(init_path) = get_init_path(vfs, path)? {
// TODO: support user-defined init paths
// If and when we do, make sure to go support it in
// `Project::set_file_name`, as right now it special-cases
// `default.project.json` as an `init` path.
for rule in default_sync_rules() {
if rule.matches(&init_path) {
return match rule.middleware {
Middleware::Project => {
let name = init_path
.parent()
.and_then(Path::file_name)
.and_then(|s| s.to_str()).expect("default.project.json should be inside a folder with a unicode name");
snapshot_project(context, vfs, &init_path, name)
}
Middleware::ModuleScript => {
snapshot_lua_init(context, vfs, &init_path, ScriptType::Module)
}
Middleware::ServerScript => {
snapshot_lua_init(context, vfs, &init_path, ScriptType::Server)
}
Middleware::ClientScript => {
snapshot_lua_init(context, vfs, &init_path, ScriptType::Client)
}
Middleware::Csv => snapshot_csv_init(context, vfs, &init_path),
_ => snapshot_dir(context, vfs, path),
};
}
}
snapshot_dir(context, vfs, path)
} else {
snapshot_dir(context, vfs, path)
let (middleware, dir_name, init_path) = get_dir_middleware(vfs, path)?;
// TODO: Support user defined init paths
// If and when we do, make sure to go support it in
// `Project::set_file_name`, as right now it special-cases
// `default.project.json` as an `init` path.
match middleware {
Middleware::Dir => middleware.snapshot(context, vfs, path, dir_name),
_ => middleware.snapshot(context, vfs, &init_path, dir_name),
}
} else {
let file_name = path
@@ -116,55 +99,50 @@ pub fn snapshot_from_vfs(
}
}
/// Gets an `init` path for the given directory.
/// This uses an intrinsic priority list and for compatibility,
/// it should not be changed.
fn get_init_path<P: AsRef<Path>>(vfs: &Vfs, dir: P) -> anyhow::Result<Option<PathBuf>> {
let path = dir.as_ref();
/// Gets the appropriate middleware for a directory by checking for `init`
/// files. This uses an intrinsic priority list and for compatibility,
/// that order should be left unchanged.
///
/// Returns the middleware, the name of the directory, and the path to
/// the init location.
fn get_dir_middleware<'path>(
vfs: &Vfs,
dir_path: &'path Path,
) -> anyhow::Result<(Middleware, &'path str, PathBuf)> {
let dir_name = dir_path
.file_name()
.expect("Could not extract directory name")
.to_str()
.ok_or_else(|| anyhow::anyhow!("File name was not valid UTF-8: {}", dir_path.display()))?;
static INIT_PATHS: OnceLock<Vec<(Middleware, &str)>> = OnceLock::new();
let order = INIT_PATHS.get_or_init(|| {
vec![
(Middleware::ModuleScriptDir, "init.luau"),
(Middleware::ModuleScriptDir, "init.lua"),
(Middleware::ServerScriptDir, "init.server.luau"),
(Middleware::ServerScriptDir, "init.server.lua"),
(Middleware::ClientScriptDir, "init.client.luau"),
(Middleware::ClientScriptDir, "init.client.lua"),
(Middleware::CsvDir, "init.csv"),
]
});
for default_project_name in DEFAULT_PROJECT_NAMES {
let project_path = path.join(default_project_name);
let project_path = dir_path.join(default_project_name);
if vfs.metadata(&project_path).with_not_found()?.is_some() {
return Ok(Some(project_path));
return Ok((Middleware::Project, dir_name, project_path));
}
}
let init_path = path.join("init.luau");
if vfs.metadata(&init_path).with_not_found()?.is_some() {
return Ok(Some(init_path));
for (middleware, name) in order {
let test_path = dir_path.join(name);
if vfs.metadata(&test_path).with_not_found()?.is_some() {
return Ok((*middleware, dir_name, test_path));
}
}
let init_path = path.join("init.lua");
if vfs.metadata(&init_path).with_not_found()?.is_some() {
return Ok(Some(init_path));
}
let init_path = path.join("init.server.luau");
if vfs.metadata(&init_path).with_not_found()?.is_some() {
return Ok(Some(init_path));
}
let init_path = path.join("init.server.lua");
if vfs.metadata(&init_path).with_not_found()?.is_some() {
return Ok(Some(init_path));
}
let init_path = path.join("init.client.luau");
if vfs.metadata(&init_path).with_not_found()?.is_some() {
return Ok(Some(init_path));
}
let init_path = path.join("init.client.lua");
if vfs.metadata(&init_path).with_not_found()?.is_some() {
return Ok(Some(init_path));
}
let init_path = path.join("init.csv");
if vfs.metadata(&init_path).with_not_found()?.is_some() {
return Ok(Some(init_path));
}
Ok(None)
Ok((Middleware::Dir, dir_name, dir_path.to_path_buf()))
}
/// Gets a snapshot for a path given an InstanceContext and Vfs, taking
@@ -194,9 +172,10 @@ fn snapshot_from_path(
}
/// Represents a possible 'transformer' used by Rojo to turn a file system
/// item into a Roblox Instance. Missing from this list are directories and
/// metadata. This is deliberate, as metadata is not a snapshot middleware
/// and directories do not make sense to turn into files.
/// item into a Roblox Instance. Missing from this list is metadata.
/// This is deliberate, as metadata is not a snapshot middleware.
///
/// Directories cannot be used for sync rules so they're ignored by Serde.
#[derive(Debug, Clone, Copy, PartialEq, Deserialize, Serialize)]
#[serde(rename_all = "camelCase")]
pub enum Middleware {
@@ -218,6 +197,17 @@ pub enum Middleware {
Text,
Yaml,
Ignore,
#[serde(skip_deserializing)]
Dir,
#[serde(skip_deserializing)]
ServerScriptDir,
#[serde(skip_deserializing)]
ClientScriptDir,
#[serde(skip_deserializing)]
ModuleScriptDir,
#[serde(skip_deserializing)]
CsvDir,
}
impl Middleware {
@@ -230,7 +220,7 @@ impl Middleware {
path: &Path,
name: &str,
) -> anyhow::Result<Option<InstanceSnapshot>> {
match self {
let mut output = match self {
Self::Csv => snapshot_csv(context, vfs, path, name),
Self::JsonModel => snapshot_json_model(context, vfs, path, name),
Self::Json => snapshot_json(context, vfs, path, name),
@@ -257,6 +247,120 @@ impl Middleware {
Self::Text => snapshot_txt(context, vfs, path, name),
Self::Yaml => snapshot_yaml(context, vfs, path, name),
Self::Ignore => Ok(None),
Self::Dir => snapshot_dir(context, vfs, path, name),
Self::ServerScriptDir => {
snapshot_lua_init(context, vfs, path, name, ScriptType::Server)
}
Self::ClientScriptDir => {
snapshot_lua_init(context, vfs, path, name, ScriptType::Client)
}
Self::ModuleScriptDir => {
snapshot_lua_init(context, vfs, path, name, ScriptType::Module)
}
Self::CsvDir => snapshot_csv_init(context, vfs, path, name),
};
if let Ok(Some(ref mut snapshot)) = output {
snapshot.metadata.middleware = Some(*self);
}
output
}
/// Runs the syncback mechanism for the provided middleware given a
/// SyncbackSnapshot.
pub fn syncback<'sync>(
&self,
snapshot: &SyncbackSnapshot<'sync>,
) -> anyhow::Result<SyncbackReturn<'sync>> {
let file_name = snapshot.path.file_name().and_then(|s| s.to_str());
if let Some(file_name) = file_name {
validate_file_name(file_name).with_context(|| {
format!("cannot create a file or directory with name {file_name}")
})?;
}
match self {
Middleware::Csv => syncback_csv(snapshot),
Middleware::JsonModel => syncback_json_model(snapshot),
Middleware::Json => anyhow::bail!("cannot syncback Json middleware"),
// Projects are only generated from files that already exist on the
// file system, so we don't need to pass a file name.
Middleware::Project => syncback_project(snapshot),
Middleware::ServerScript => syncback_lua(snapshot),
Middleware::ClientScript => syncback_lua(snapshot),
Middleware::ModuleScript => syncback_lua(snapshot),
Middleware::Rbxm => syncback_rbxm(snapshot),
Middleware::Rbxmx => syncback_rbxmx(snapshot),
Middleware::Toml => anyhow::bail!("cannot syncback Toml middleware"),
Middleware::Text => syncback_txt(snapshot),
Middleware::Yaml => anyhow::bail!("cannot syncback Yaml middleware"),
Middleware::Ignore => anyhow::bail!("cannot syncback Ignore middleware"),
Middleware::Dir => syncback_dir(snapshot),
Middleware::ServerScriptDir => syncback_lua_init(ScriptType::Server, snapshot),
Middleware::ClientScriptDir => syncback_lua_init(ScriptType::Client, snapshot),
Middleware::ModuleScriptDir => syncback_lua_init(ScriptType::Module, snapshot),
Middleware::CsvDir => syncback_csv_init(snapshot),
Middleware::PluginScript
| Middleware::LegacyServerScript
| Middleware::LegacyClientScript
| Middleware::RunContextServerScript
| Middleware::RunContextClientScript => {
anyhow::bail!("syncback is not implemented for {self:?} yet")
}
}
}
/// Returns whether this particular middleware would become a directory.
#[inline]
pub fn is_dir(&self) -> bool {
matches!(
self,
Middleware::Dir
| Middleware::ServerScriptDir
| Middleware::ClientScriptDir
| Middleware::ModuleScriptDir
| Middleware::CsvDir
)
}
/// Returns whether this particular middleware sets its own properties.
/// This applies to things like `JsonModel` and `Project`, since they
/// set properties without needing a meta.json file.
///
/// It does not cover middleware like `ServerScript` or `Csv` because they
/// need a meta.json file to set properties that aren't their designated
/// 'special' properties.
#[inline]
pub fn handles_own_properties(&self) -> bool {
matches!(
self,
Middleware::JsonModel | Middleware::Project | Middleware::Rbxm | Middleware::Rbxmx
)
}
/// Attempts to return a middleware that should be used for the given path.
///
/// Returns `Err` only if the Vfs cannot read information about the path.
pub fn middleware_for_path(
vfs: &Vfs,
sync_rules: &[SyncRule],
path: &Path,
) -> anyhow::Result<Option<Self>> {
let meta = match vfs.metadata(path).with_not_found()? {
Some(meta) => meta,
None => return Ok(None),
};
if meta.is_dir() {
let (middleware, _, _) = get_dir_middleware(vfs, path)?;
Ok(Some(middleware))
} else {
for rule in sync_rules.iter().chain(default_sync_rules()) {
if rule.matches(path) {
return Ok(Some(rule.middleware));
}
}
Ok(None)
}
}
}