chore: upgrade to chokidar 4 (#2502)

Also remove long-obsolete sapper handling

Author: benmccann

packages/language-server/package.json

@@ -52,7 +52,7 @@
     "dependencies": {
         "@jridgewell/trace-mapping": "^0.3.25",
         "@vscode/emmet-helper": "2.8.4",
-        "chokidar": "^3.4.1",
+        "chokidar": "^4.0.1",
         "estree-walker": "^2.0.1",
         "fdir": "^6.2.0",
         "lodash": "^4.17.21",

packages/language-server/src/lib/FallbackWatcher.ts

@@ -25,12 +25,7 @@ export class FallbackWatcher {
         this.watcher = watch(
             workspacePaths.map((workspacePath) => join(workspacePath, recursivePatterns)),
             {
-                ignored: (path: string) =>
-                    gitOrNodeModules.test(path) &&
-                    // Handle Sapper's alias mapping
-                    !path.includes('src/node_modules') &&
-                    !path.includes('src\\node_modules'),
-
+                ignored: gitOrNodeModules,
                 // typescript would scan the project files on init.
                 // We only need to know what got updated.
                 ignoreInitial: true,

packages/svelte-check/package.json

@@ -27,7 +27,7 @@
     },
     "dependencies": {
         "@jridgewell/trace-mapping": "^0.3.25",
-        "chokidar": "^3.4.1",
+        "chokidar": "^4.0.1",
         "fdir": "^6.2.0",
         "picocolors": "^1.0.0",
         "sade": "^1.7.4"

packages/svelte-check/src/index.ts

@@ -32,27 +32,7 @@ async function openAllDocuments(
 ) {
     const offset = workspaceUri.fsPath.length + 1;
     // We support a very limited subset of glob patterns: You can only have  ** at the end or the start
-    const ignored: Array<(path: string) => boolean> = filePathsToIgnore.map((i) => {
-        if (i.endsWith('**')) i = i.slice(0, -2);
-
-        if (i.startsWith('**')) {
-            i = i.slice(2);
-
-            if (i.includes('*'))
-                throw new Error(
-                    'Invalid svelte-check --ignore pattern: Only ** at the start or end is supported'
-                );
-
-            return (path) => path.includes(i);
-        }
-
-        if (i.includes('*'))
-            throw new Error(
-                'Invalid svelte-check --ignore pattern: Only ** at the start or end is supported'
-            );
-
-        return (path) => path.startsWith(i);
-    });
+    const ignored = createIgnored(filePathsToIgnore);
     const isIgnored = (path: string) => {
         path = path.slice(offset);
         for (const i of ignored) {
@@ -84,6 +64,30 @@ async function openAllDocuments(
     }
 }
 
+function createIgnored(filePathsToIgnore: string[]): Array<(path: string) => boolean> {
+    return filePathsToIgnore.map((i) => {
+        if (i.endsWith('**')) i = i.slice(0, -2);
+
+        if (i.startsWith('**')) {
+            i = i.slice(2);
+
+            if (i.includes('*'))
+                throw new Error(
+                    'Invalid svelte-check --ignore pattern: Only ** at the start or end is supported'
+                );
+
+            return (path) => path.includes(i);
+        }
+
+        if (i.includes('*'))
+            throw new Error(
+                'Invalid svelte-check --ignore pattern: Only ** at the start or end is supported'
+            );
+
+        return (path) => path.startsWith(i);
+    });
+}
+
 async function getDiagnostics(
     workspaceUri: URI,
     writer: Writer,
@@ -149,10 +153,32 @@ class DiagnosticsWatcher {
         filePathsToIgnore: string[],
         ignoreInitialAdd: boolean
     ) {
-        watch(`${workspaceUri.fsPath}/**/*.{svelte,d.ts,ts,js,jsx,tsx,mjs,cjs,mts,cts}`, {
-            ignored: ['node_modules', 'vite.config.{js,ts}.timestamp-*']
-                .concat(filePathsToIgnore)
-                .map((ignore) => path.join(workspaceUri.fsPath, ignore)),
+        const fileEnding = /\.(svelte|d\.ts|ts|js|jsx|tsx|mjs|cjs|mts|cts)$/;
+        const viteConfigRegex = /vite\.config\.(js|ts)\.timestamp-/;
+        const userIgnored = createIgnored(filePathsToIgnore);
+        const offset = workspaceUri.fsPath.length + 1;
+
+        watch(workspaceUri.fsPath, {
+            ignored: (path, stats) => {
+                if (
+                    path.includes('node_modules') ||
+                    path.includes('.git') ||
+                    (stats?.isFile() && (!fileEnding.test(path) || viteConfigRegex.test(path)))
+                ) {
+                    return true;
+                }
+
+                if (userIgnored.length !== 0) {
+                    path = path.slice(offset);
+                    for (const i of userIgnored) {
+                        if (i(path)) {
+                            return true;
+                        }
+                    }
+                }
+
+                return false;
+            },
             ignoreInitial: ignoreInitialAdd
         })
             .on('add', (path) => this.updateDocument(path, true))