Enhance convert_path_with_tilde_expansion to handle Windows (#4390)

crates/goose/src/recipe/read_recipe_file_content.rs

@@ -36,11 +36,25 @@ pub fn read_recipe_file<P: AsRef<Path>>(recipe_path: P) -> Result<RecipeFile> {
 
 fn convert_path_with_tilde_expansion(path: &Path) -> PathBuf {
     if let Some(path_str) = path.to_str() {
+        // Handle exact "~" (Windows only to avoid changing behavior on Unix)
+        if cfg!(windows) && path_str == "~" {
+            if let Some(home_dir) = dirs::home_dir() {
+                return home_dir;
+            }
+        }
+        // Handle Unix-style "~/..."
         if let Some(stripped) = path_str.strip_prefix("~/") {
             if let Some(home_dir) = dirs::home_dir() {
                 return home_dir.join(stripped);
             }
         }
+        // Handle Windows-style "~\\..." (Windows only)
+        #[cfg(windows)]
+        if let Some(stripped) = path_str.strip_prefix("~\\") {
+            if let Some(home_dir) = dirs::home_dir() {
+                return home_dir.join(stripped);
+            }
+        }
     }
     PathBuf::from(path)
 }

ui/desktop/src/main.ts

@@ -1581,37 +1581,44 @@ ipcMain.handle('get-binary-path', (_event, binaryName) => {
   return getBinaryPath(app, binaryName);
 });
 
-ipcMain.handle('read-file', (_event, filePath) => {
-  return new Promise((resolve) => {
-    // Expand tilde to home directory
+ipcMain.handle('read-file', async (_event, filePath) => {
+  try {
     const expandedPath = expandTilde(filePath);
+    if (process.platform === 'win32') {
+      const buffer = await fs.readFile(expandedPath);
+      return { file: buffer.toString('utf8'), filePath: expandedPath, error: null, found: true };
+    }
+    // Non-Windows: keep previous behavior via cat for parity
+    return await new Promise((resolve) => {
+      const cat = spawn('cat', [expandedPath]);
+      let output = '';
+      let errorOutput = '';
 
-    const cat = spawn('cat', [expandedPath]);
-    let output = '';
-    let errorOutput = '';
+      cat.stdout.on('data', (data) => {
+        output += data.toString();
+      });
 
-    cat.stdout.on('data', (data) => {
-      output += data.toString();
+      cat.stderr.on('data', (data) => {
+        errorOutput += data.toString();
+      });
+
+      cat.on('close', (code) => {
+        if (code !== 0) {
+          resolve({ file: '', filePath: expandedPath, error: errorOutput || null, found: false });
+          return;
+        }
+        resolve({ file: output, filePath: expandedPath, error: null, found: true });
+      });
+
+      cat.on('error', (error) => {
+        console.error('Error reading file:', error);
+        resolve({ file: '', filePath: expandedPath, error, found: false });
+      });
     });
-
-    cat.stderr.on('data', (data) => {
-      errorOutput += data.toString();
-    });
-
-    cat.on('close', (code) => {
-      if (code !== 0) {
-        // File not found or error
-        resolve({ file: '', filePath: expandedPath, error: errorOutput || null, found: false });
-        return;
-      }
-      resolve({ file: output, filePath: expandedPath, error: null, found: true });
-    });
-
-    cat.on('error', (error) => {
-      console.error('Error reading file:', error);
-      resolve({ file: '', filePath: expandedPath, error, found: false });
-    });
-  });
+  } catch (error) {
+    console.error('Error reading file:', error);
+    return { file: '', filePath: expandTilde(filePath), error, found: false };
+  }
 });
 
 ipcMain.handle('write-file', async (_event, filePath, content) => {

ui/desktop/src/utils/pathUtils.ts

@@ -119,7 +119,18 @@ const addPaths = (
  * @returns The expanded path with tilde replaced by home directory
  */
 export function expandTilde(filePath: string): string {
+  if (!filePath || typeof filePath !== 'string') return filePath;
+  // Support "~", "~/..." and "~\\..." on Windows
+  if (filePath === '~') {
+    return os.homedir();
+  }
+  if (filePath.startsWith('~/') || (process.platform === 'win32' && filePath.startsWith('~\\'))) {
+    // Remove the leading "~" and any separator that follows, then join
+    const remainder = filePath.slice(2);
+    return path.join(os.homedir(), remainder);
+  }
   if (filePath.startsWith('~')) {
+    // Generic fallback: replace only the first leading tilde
     return path.join(os.homedir(), filePath.slice(1));
   }
   return filePath;