T01: Linux windowing backends, macOS build gate, generated lockfile exempt

.github/workflows/ci.yml

@@ -16,6 +16,7 @@ jobs:
           components: clippy, rustfmt
       - uses: Swatinem/rust-cache@v2
       - run: scripts/check.sh
+      - run: cargo build --locked
 
   platforms:
     strategy:
@@ -29,5 +30,5 @@ jobs:
         with:
           toolchain: "1.95"
       - uses: Swatinem/rust-cache@v2
-      - run: cargo test --quiet
-      - run: cargo build
+      - run: cargo test --locked --quiet
+      - run: cargo build --locked

AGENTS.md

@@ -20,7 +20,7 @@ ELYTerminal. A terminal on GPUI and Ely components. `PRD.md` says what it does;
 
 ## Rules
 
-- Files stay at or under 500 lines. Comments are one short line, and rare.
+- Hand-written files stay at or under 500 lines; `Cargo.lock`, which Cargo writes, is exempt. Comments are one short line, and rare.
 - Fail fast. No silent fallbacks. An error names its owner and what failed.
 - Log every state change on a key path with `log`: spawn, exit, folder change, settings load and save, blur path.
 - No dead code, no versioned names, no compatibility shims.

Cargo.toml

@@ -13,7 +13,7 @@ anyhow = "1"
 ely-gpui-component = { git = "https://git.zacharyzhang.com/ZacharyZhang-NY/Ely-GPUI-Components.git", rev = "12512217bd9bc652ed6bbf10461b00cc26c01c21" }
 env_logger = "0.11"
 gpui = { package = "gpui-pre", version = "=0.3.8", default-features = false }
-gpui_platform = { package = "gpui-pre-platform", version = "=0.3.8", features = ["font-kit"] }
+gpui_platform = { package = "gpui-pre-platform", version = "=0.3.8", features = ["font-kit", "wayland", "x11"] }
 log = "0.4"
 
 [lints.rust]

src/main.rs

@@ -21,10 +21,21 @@ impl Render for Workspace {
     }
 }
 
+/// A Linux app with no display server fails at start instead of running headless.
+#[cfg(target_os = "linux")]
+fn application() -> gpui::Application {
+    gpui_platform::linux(gpui::WindowingModes::WAYLAND | gpui::WindowingModes::X11)
+}
+
+#[cfg(not(target_os = "linux"))]
+fn application() -> gpui::Application {
+    gpui_platform::application()
+}
+
 fn main() {
     env_logger::Builder::from_env(env_logger::Env::default().default_filter_or("elyterminal=info"))
         .init();
-    gpui_platform::application()
+    application()
         .with_assets(Assets)
         .run(|cx: &mut App| {
             ely_gpui_component::init(cx).expect("Ely failed to start");