fix(cli): resolve executable path for Claude CLI on Windows

server/shared/claude-cli-path.ts

@@ -0,0 +1,139 @@
+import { execFileSync } from 'node:child_process';
+import fs from 'node:fs';
+import path from 'node:path';
+
+const DEFAULT_CLAUDE_COMMAND = 'claude';
+const CLAUDE_SCRIPT_EXTENSIONS = new Set(['.cjs', '.js', '.jsx', '.mjs', '.ts', '.tsx']);
+const CLAUDE_WRAPPER_SEGMENTS = ['node_modules', '@anthropic-ai', 'claude-code', 'bin', 'claude.exe'] as const;
+
+export type ResolveClaudeCodeExecutablePathDependencies = {
+  execFileSync?: typeof execFileSync;
+  existsSync?: typeof fs.existsSync;
+  platform?: NodeJS.Platform;
+  readFileSync?: typeof fs.readFileSync;
+};
+
+function getPathApi(platform: NodeJS.Platform) {
+  return platform === 'win32' ? path.win32 : path;
+}
+
+function stripWrappingQuotes(value: string): string {
+  const trimmed = value.trim();
+  if (
+    (trimmed.startsWith('"') && trimmed.endsWith('"')) ||
+    (trimmed.startsWith("'") && trimmed.endsWith("'"))
+  ) {
+    return trimmed.slice(1, -1);
+  }
+  return trimmed;
+}
+
+function isPathLike(value: string): boolean {
+  return value.includes('/') || value.includes('\\');
+}
+
+function resolveClaudeWrapperBinary(
+  wrapperPath: string,
+  deps: Required<ResolveClaudeCodeExecutablePathDependencies>,
+): string | null {
+  const pathApi = getPathApi(deps.platform);
+  const directCandidate = pathApi.resolve(pathApi.dirname(wrapperPath), ...CLAUDE_WRAPPER_SEGMENTS);
+
+  if (deps.existsSync(directCandidate)) {
+    return directCandidate;
+  }
+
+  let content: string;
+  try {
+    content = deps.readFileSync(wrapperPath, 'utf8');
+  } catch {
+    return null;
+  }
+
+  const matches = content.matchAll(/["']([^"'\\r\\n]*claude\.exe)["']/gi);
+  for (const match of matches) {
+    const rawTarget = match[1]
+      .replace(/^\$basedir[\\/]/i, '')
+      .replace(/^%dp0%[\\/]/i, '')
+      .replace(/^%~dp0[\\/]/i, '');
+    const normalizedTarget = rawTarget.replace(/[\\/]/g, pathApi.sep);
+    const candidate = pathApi.isAbsolute(normalizedTarget)
+      ? normalizedTarget
+      : pathApi.resolve(pathApi.dirname(wrapperPath), normalizedTarget);
+
+    if (deps.existsSync(candidate)) {
+      return candidate;
+    }
+  }
+
+  return null;
+}
+
+function resolveWindowsClaudeExecutablePath(
+  configuredPath: string,
+  deps: Required<ResolveClaudeCodeExecutablePathDependencies>,
+): string {
+  const pathApi = getPathApi(deps.platform);
+  const extension = pathApi.extname(configuredPath).toLowerCase();
+  const explicitPath = isPathLike(configuredPath) || pathApi.isAbsolute(configuredPath);
+
+  if (CLAUDE_SCRIPT_EXTENSIONS.has(extension)) {
+    return configuredPath;
+  }
+
+  if (explicitPath && extension === '.exe') {
+    return configuredPath;
+  }
+
+  if (explicitPath) {
+    return resolveClaudeWrapperBinary(configuredPath, deps) ?? configuredPath;
+  }
+
+  try {
+    const stdout = deps.execFileSync('where.exe', [configuredPath], {
+      encoding: 'utf8',
+      stdio: ['ignore', 'pipe', 'ignore'],
+      windowsHide: true,
+    });
+    const candidates = stdout
+      .split(/\r?\n/)
+      .map((entry) => entry.trim())
+      .filter(Boolean);
+
+    for (const candidate of candidates) {
+      if (pathApi.extname(candidate).toLowerCase() === '.exe') {
+        return candidate;
+      }
+    }
+
+    for (const candidate of candidates) {
+      const resolved = resolveClaudeWrapperBinary(candidate, deps);
+      if (resolved) {
+        return resolved;
+      }
+    }
+  } catch {
+    return configuredPath;
+  }
+
+  return configuredPath;
+}
+
+export function resolveClaudeCodeExecutablePath(
+  configuredPath: string | undefined = process.env.CLAUDE_CLI_PATH,
+  dependencies: ResolveClaudeCodeExecutablePathDependencies = {},
+): string {
+  const deps: Required<ResolveClaudeCodeExecutablePathDependencies> = {
+    execFileSync: dependencies.execFileSync ?? execFileSync,
+    existsSync: dependencies.existsSync ?? fs.existsSync,
+    platform: dependencies.platform ?? process.platform,
+    readFileSync: dependencies.readFileSync ?? fs.readFileSync,
+  };
+
+  const normalizedPath = stripWrappingQuotes(configuredPath || DEFAULT_CLAUDE_COMMAND);
+  if (deps.platform !== 'win32') {
+    return normalizedPath;
+  }
+
+  return resolveWindowsClaudeExecutablePath(normalizedPath, deps);
+}