Merge #2029

2029: Adds config option for cargo-watch `--ignore` flag r=matklad a=jrvidal

I presume this is a nice-to-have to avoid spurious watching.

* I don't know much about Windows, so I'm not sure if the extra args need some special escaping.
* I suppose we could reuse and/or integrate with `rust-analyzer.excludeGlobs`. I find this simpler, but I'm open to suggestions.

Co-authored-by: Roberto Vidal <[email protected]>

1 files changed, 6 insertions, 1 deletions

diff --git a/editors/code/src/commands/cargo_watch.ts b/editors/code/src/commands/cargo_watch.ts
index 00b24dbce..59d4ba97a 100644
--- a/editors/code/src/commands/cargo_watch.ts
+++ b/editors/code/src/commands/cargo_watch.ts
@@ -93,10 +93,15 @@ export class CargoWatchProvider implements vscode.Disposable {
             args = '"' + args + '"';
         }
 
+        const ignoreFlags = Server.config.cargoWatchOptions.ignore.reduce(
+            (flags, pattern) => [...flags, '--ignore', pattern],
+            [] as string[]
+        );
+
         // Start the cargo watch with json message
         this.cargoProcess = child_process.spawn(
             'cargo',
-            ['watch', '-x', args],
+            ['watch', '-x', args, ...ignoreFlags],
             {
                 stdio: ['ignore', 'pipe', 'pipe'],
                 cwd: vscode.workspace.rootPath,