fix: make husky prepare resilient when husky is unavailable

Author: Priyanshubhartistm

.husky/install.mjs

@@ -1,28 +1,31 @@
-// Skip Husky installation in environments where dev dependencies may be omitted
+import { existsSync } from 'node:fs';
+
+// Skip Husky installation in environments where hooks are not needed
 if (
-process.env.NODE_ENV === 'production' ||
-process.env.CI === 'true' ||
-process.env.HUSKY === '0'
+  process.env.NODE_ENV === 'production' ||
+  process.env.CI === 'true' ||
+  process.env.HUSKY === '0' ||
+  !existsSync('.git')
 ) {
-process.exit(0);
+  process.exit(0);
 }
 
 try {
-const { install } = await import('husky');
+  const { install } = await import('husky');
 
   // Only call install if it exists (safe check)
-if (typeof install === 'function') {
+  if (typeof install === 'function') {
     install();
-}
+  }
 } catch (error) {
   // Ignore error if husky is not installed (e.g., production/CI environments)
-if (
+  if (
     error?.code === 'ERR_MODULE_NOT_FOUND' ||
     error?.message?.includes("Cannot find package 'husky'")
-) {
+  ) {
     process.exit(0);
-}
+  }
 
   // Re-throw other unexpected errors
-throw error;
-}
+  throw error;
+}

test/unit/husky/install.spec.ts

@@ -0,0 +1,55 @@
+import { expect } from 'chai'
+import fs from 'fs'
+import os from 'os'
+import path from 'path'
+import { spawnSync } from 'child_process'
+
+const projectRoot = process.cwd()
+const installScriptPath = path.join(projectRoot, '.husky', 'install.mjs')
+
+const runInstall = (cwd: string, env: NodeJS.ProcessEnv = {}) => {
+  return spawnSync('node', [installScriptPath], {
+    cwd,
+    env: {
+      ...process.env,
+      ...env,
+    },
+    encoding: 'utf-8',
+  })
+}
+
+describe('husky install script', () => {
+  it('exits successfully when .git is missing', () => {
+    const tmpDir = fs.mkdtempSync(path.join(os.tmpdir(), 'nostream-husky-no-git-'))
+
+    try {
+      const result = runInstall(tmpDir)
+      expect(result.status).to.equal(0)
+    } finally {
+      fs.rmSync(tmpDir, { recursive: true, force: true })
+    }
+  })
+
+  it('exits successfully when HUSKY is disabled', () => {
+    const tmpDir = fs.mkdtempSync(path.join(os.tmpdir(), 'nostream-husky-disabled-'))
+
+    try {
+      const result = runInstall(tmpDir, { HUSKY: '0' })
+      expect(result.status).to.equal(0)
+    } finally {
+      fs.rmSync(tmpDir, { recursive: true, force: true })
+    }
+  })
+
+  it('exits successfully when husky package is unavailable even if .git exists', () => {
+    const tmpDir = fs.mkdtempSync(path.join(os.tmpdir(), 'nostream-husky-missing-package-'))
+
+    try {
+      fs.mkdirSync(path.join(tmpDir, '.git'))
+      const result = runInstall(tmpDir)
+      expect(result.status).to.equal(0)
+    } finally {
+      fs.rmSync(tmpDir, { recursive: true, force: true })
+    }
+  })
+})