fix: copy tree-sitter WASM files to out dir in build

The listCodeDefinitionNamesTool was hanging because the tree-sitter
language parsers could not load the required WASM files at runtime.
The esbuild script was only copying these files to the 'dist' directory,
but the extension runs from the 'out' directory.

This commit updates the 'copyWasmFiles' plugin in esbuild.js to
copy the WASM files to both 'dist' and 'out' directories, ensuring
they are available at runtime.

Author: shariqriazz

esbuild.js

@@ -31,12 +31,28 @@ const copyWasmFiles = {
 		build.onEnd(() => {
 			const nodeModulesDir = path.join(__dirname, "node_modules")
 			const distDir = path.join(__dirname, "dist")
+			const outDir = path.join(__dirname, "out") // Define outDir
+
+			// Ensure destination directories exist
+			fs.mkdirSync(distDir, { recursive: true })
+			try {
+				fs.mkdirSync(outDir, { recursive: true })
+			} catch (e) {}
 
 			// tiktoken
 			fs.copyFileSync(
 				path.join(nodeModulesDir, "tiktoken", "tiktoken_bg.wasm"),
 				path.join(distDir, "tiktoken_bg.wasm"),
 			)
+			// Also copy tiktoken wasm to outDir
+			try {
+				fs.copyFileSync(
+					path.join(nodeModulesDir, "tiktoken", "tiktoken_bg.wasm"),
+					path.join(outDir, "tiktoken_bg.wasm"),
+				)
+			} catch (e) {
+				console.warn("Could not copy tiktoken wasm to out directory:", e.message)
+			}
 
 			// Copy language-specific WASM files
 			const languageWasmDir = path.join(__dirname, "node_modules", "tree-sitter-wasms", "out")
@@ -48,8 +64,16 @@ const copyWasmFiles = {
 				console.log(`Copying ${wasmFiles.length} tree-sitter WASM files to dist directory`)
 
 				wasmFiles.forEach((filename) => {
+					// Copy to dist
 					fs.copyFileSync(path.join(languageWasmDir, filename), path.join(distDir, filename))
+					// Also copy to out
+					try {
+						fs.copyFileSync(path.join(languageWasmDir, filename), path.join(outDir, filename))
+					} catch (e) {
+						console.warn(`Could not copy ${filename} to out directory:`, e.message)
+					}
 				})
+				console.log(`Copied tree-sitter WASM files to dist and out directories`)
 			} else {
 				console.warn(`Tree-sitter WASM directory not found: ${languageWasmDir}`)
 			}