Move Rojo server into root of the repository

src/commands/serve.rs

@@ -0,0 +1,91 @@
+use std::{collections::HashMap, path::PathBuf, sync::Arc};
+
+use failure::Fail;
+use rbx_dom_weak::{RbxInstanceProperties, RbxTree};
+
+use crate::{
+    imfs::new::{Imfs, RealFetcher, WatchMode},
+    project::{Project, ProjectLoadError},
+    serve_session::ServeSession,
+    snapshot::{apply_patch_set, compute_patch_set},
+    snapshot_middleware::snapshot_from_imfs,
+    web::LiveServer,
+};
+
+const DEFAULT_PORT: u16 = 34872;
+
+#[derive(Debug)]
+pub struct ServeOptions {
+    pub fuzzy_project_path: PathBuf,
+    pub port: Option<u16>,
+}
+
+#[derive(Debug, Fail)]
+pub enum ServeError {
+    #[fail(display = "Couldn't load project: {}", _0)]
+    ProjectLoad(#[fail(cause)] ProjectLoadError),
+}
+
+impl_from!(ServeError {
+    ProjectLoadError => ProjectLoad,
+});
+
+pub fn serve(options: &ServeOptions) -> Result<(), ServeError> {
+    let maybe_project = match Project::load_fuzzy(&options.fuzzy_project_path) {
+        Ok(project) => Some(project),
+        Err(ProjectLoadError::NotFound) => None,
+        Err(other) => return Err(other.into()),
+    };
+
+    let port = options
+        .port
+        .or_else(|| {
+            maybe_project
+                .as_ref()
+                .and_then(|project| project.serve_port)
+        })
+        .unwrap_or(DEFAULT_PORT);
+
+    println!("Rojo server listening on port {}", port);
+
+    let mut tree = RbxTree::new(RbxInstanceProperties {
+        name: "ROOT".to_owned(),
+        class_name: "Folder".to_owned(),
+        properties: HashMap::new(),
+    });
+    let root_id = tree.get_root_id();
+
+    let mut imfs = Imfs::new(RealFetcher::new(WatchMode::Enabled));
+    let entry = imfs
+        .get(&options.fuzzy_project_path)
+        .expect("could not get project path");
+
+    let snapshot = snapshot_from_imfs(&mut imfs, &entry)
+        .expect("snapshot failed")
+        .expect("snapshot did not return an instance");
+
+    let patch_set = compute_patch_set(&snapshot, &tree, root_id);
+    apply_patch_set(&mut tree, &patch_set);
+
+    let session = Arc::new(ServeSession::new(maybe_project));
+    let server = LiveServer::new(session);
+
+    server.start(port);
+
+    // let receiver = imfs.change_receiver();
+
+    // while let Ok(change) = receiver.recv() {
+    //     imfs.commit_change(&change)
+    //         .expect("Failed to commit Imfs change");
+
+    //     use notify::DebouncedEvent;
+    //     if let DebouncedEvent::Write(path) = change {
+    //         let contents = imfs.get_contents(path)
+    //             .expect("Failed to read changed path");
+
+    //         println!("{:?}", std::str::from_utf8(contents));
+    //     }
+    // }
+
+    Ok(())
+}