fix: resolve Windows CI failures (CRLF, MCP spawn, cross-platform test runner)

.gitattributes

@@ -0,0 +1,12 @@
+# Normalize line endings to LF across all platforms
+* text=auto eol=lf
+
+# Binary files should not be normalized
+*.png binary
+*.jpg binary
+*.gif binary
+*.ico binary
+*.woff binary
+*.woff2 binary
+*.eot binary
+*.ttf binary

.github/workflows/ci.yml

@@ -18,6 +18,7 @@ jobs:
           - windows-latest
           - macos-latest
         node-version:
+          - "20"
           - "22"
           - "24"
 

package.json

@@ -32,7 +32,7 @@
     "format:check": "prettier --check 'src/**/*.{ts,tsx}'",
     "check": "npm run typecheck && npm run lint && npm run format:check",
     "build": "npm run check && npm run bundle && node -e \"require('fs').chmodSync('dist/cli.js', 0o755)\"",
-    "test": "tsx --test src/tests/*.test.ts",
+    "test": "node src/tests/run-tests.mjs",
     "test:single": "tsx --test",
     "prepack": "npm run build",
     "prepare": "husky"
@@ -58,6 +58,7 @@
     "eslint": "^9.39.4",
     "eslint-config-prettier": "^10.1.8",
     "eslint-plugin-react-hooks": "^7.1.1",
+    "glob": "^13.0.6",
     "husky": "^9.1.7",
     "lint-staged": "^17.0.4",
     "prettier": "^3.8.3",

src/mcp/mcp-client.ts

@@ -128,10 +128,10 @@ export class McpClient {
       const isWindows = os.platform() === "win32";
 
       if (isWindows) {
-        // On Windows, .cmd files require shell: true to be spawned.
-        // Build a single command string so cmd.exe handles quoting correctly.
-        const cmd = [this.command + ".cmd", ...args].join(" ");
-        this.process = spawn(cmd, [], {
+        // On Windows, shell: true lets cmd.exe resolve the command via
+        // PATHEXT (npx → npx.cmd, etc.) without blindly appending .cmd,
+        // which would break absolute paths like process.execPath.
+        this.process = spawn(this.command, args, {
           stdio: ["pipe", "pipe", "pipe"],
           env: childEnv,
           shell: true,

src/tests/clipboard.test.ts

@@ -36,40 +36,44 @@ test("readClipboardImage returns null when no clipboard helpers are installed",
   assert.equal(result, null);
 });
 
-test("readClipboardImage uses osascript fallback on macOS when pngpaste is missing", async () => {
-  const binDir = fs.mkdtempSync(path.join(os.tmpdir(), "deepcode-clipboard-test-bin-"));
-  try {
-    fs.writeFileSync(path.join(binDir, "pngpaste"), "#!/bin/sh\nexit 1\n", { mode: 0o755 });
-    fs.writeFileSync(
-      path.join(binDir, "osascript"),
-      [
-        "#!/bin/sh",
-        'for arg in "$@"; do',
-        '  case "$arg" in',
-        "    *'open for access POSIX file " + '"' + "'*)",
-        '      path_part=${arg#*POSIX file \\"}',
-        '      out_path=${path_part%%\\"*}',
-        '      printf fakepng > "$out_path"',
-        "      exit 0",
-        "      ;;",
-        "  esac",
-        "done",
-        "exit 1",
-        "",
-      ].join("\n"),
-      { mode: 0o755 }
-    );
+test(
+  "readClipboardImage uses osascript fallback on macOS when pngpaste is missing",
+  { skip: process.platform === "win32" },
+  async () => {
+    const binDir = fs.mkdtempSync(path.join(os.tmpdir(), "deepcode-clipboard-test-bin-"));
+    try {
+      fs.writeFileSync(path.join(binDir, "pngpaste"), "#!/bin/sh\nexit 1\n", { mode: 0o755 });
+      fs.writeFileSync(
+        path.join(binDir, "osascript"),
+        [
+          "#!/bin/sh",
+          'for arg in "$@"; do',
+          '  case "$arg" in',
+          "    *'open for access POSIX file " + '"' + "'*)",
+          '      path_part=${arg#*POSIX file \\"}',
+          '      out_path=${path_part%%\\"*}',
+          '      printf fakepng > "$out_path"',
+          "      exit 0",
+          "      ;;",
+          "  esac",
+          "done",
+          "exit 1",
+          "",
+        ].join("\n"),
+        { mode: 0o755 }
+      );
 
-    const moduleUrl = new URL(`../ui/clipboard.ts?t=${Date.now()}`, import.meta.url).href;
-    const { readClipboardImage } = (await import(moduleUrl)) as ClipboardModule;
+      const moduleUrl = new URL(`../ui/clipboard.ts?t=${Date.now()}`, import.meta.url).href;
+      const { readClipboardImage } = (await import(moduleUrl)) as ClipboardModule;
 
-    process.env.PATH = binDir;
-    const result = withPlatform("darwin", () => readClipboardImage());
-    assert.equal(result?.mimeType, "image/png");
-    assert.equal(result?.dataUrl, `data:image/png;base64,${Buffer.from("fakepng").toString("base64")}`);
-  } finally {
-    process.env.PATH = ORIGINAL_PATH;
-    Object.defineProperty(process, "platform", { value: ORIGINAL_PLATFORM });
-    fs.rmSync(binDir, { recursive: true, force: true });
+      process.env.PATH = binDir;
+      const result = withPlatform("darwin", () => readClipboardImage());
+      assert.equal(result?.mimeType, "image/png");
+      assert.equal(result?.dataUrl, `data:image/png;base64,${Buffer.from("fakepng").toString("base64")}`);
+    } finally {
+      process.env.PATH = ORIGINAL_PATH;
+      Object.defineProperty(process, "platform", { value: ORIGINAL_PLATFORM });
+      fs.rmSync(binDir, { recursive: true, force: true });
+    }
   }
-});
+);

src/tests/run-tests.mjs

@@ -0,0 +1,13 @@
+// Cross-platform test runner: finds all *.test.ts files and runs them via tsx.
+// Uses the glob package for reliable cross-platform pattern expansion (Node 20+).
+/* eslint-disable */
+
+import { globSync } from "glob";
+import { spawnSync } from "child_process";
+
+const cwd = new URL("../..", import.meta.url);
+const testFiles = globSync("src/tests/*.test.ts", { cwd });
+
+const result = spawnSync(process.execPath, ["--import", "tsx", "--test", ...testFiles], { stdio: "inherit", cwd });
+
+process.exit(result.status ?? 1);