Windows support

.githooks/pre-commit/test

@@ -1,9 +1,10 @@
 #!/usr/bin/env node
 
-var spawn = require('child_process').spawn;
-var exec = require('child_process').execSync;
-var gitCachedFiles = exec('git diff --cached --name-only --diff-filter=ACMR').toString().trim();
+var CP = require('child_process');
+var gitCachedFiles = CP.execSync('git diff --cached --name-only --diff-filter=ACMR').toString().trim();
+var opts = {stdio: 'inherit'};
 
 if (gitCachedFiles) {
-    spawn('npm', ['test'], {stdio: 'inherit'}).on('close', process.exit.bind(process));
+    (process.platform === 'win32' ?
+        CP.exec('npm test', opts) : CP.spawn('npm', ['test'], opts)).on('close', process.exit.bind(process));
 }

lib/git-hooks.js

@@ -3,6 +3,7 @@ var util = require('util');
 var spawn = require('child_process').spawn;
 var fs = require('fs');
 var fsHelpers = require('./fs-helpers');
+var isWin32 = process.platform === 'win32';
 
 var HOOKS_DIRNAME = 'hooks';
 var HOOKS_OLD_DIRNAME = 'hooks.old';
@@ -51,7 +52,12 @@ module.exports = {
         }
 
         var hookTemplate = fs.readFileSync(__dirname + '/' + HOOKS_TEMPLATE_FILE_NAME);
-        var pathToGitHooks = path.relative(hooksPath, __dirname);
+        var pathToGitHooks = path.join(path.relative(hooksPath, __dirname), 'git-hooks');
+
+        if (isWin32) {
+            pathToGitHooks = pathToGitHooks.replace(/\\/g, '\\\\');
+        }
+
         var hook = util.format(hookTemplate.toString(), pathToGitHooks);
 
         fsHelpers.makeDir(hooksPath);
@@ -160,11 +166,22 @@ function isExecutable(stats) {
  */
 function spawnHook(hookName, args) {
     var stats = fs.statSync(hookName);
-    var isHookExecutable = stats && stats.isFile() && isExecutable(stats);
-    if (!isHookExecutable) {
+    var command = hookName;
+    var opts = args;
+    var hook;
+
+    if (isWin32) {
+        hook = fs.readFileSync(hookName).toString();
+        if (!require('shebang-regex').test(hook)) {
+            throw new Error('Cannot find shebang in hook: ' + hookName + '.');
+        }
+        command = require('shebang-command')(require('shebang-regex').exec(hook)[0]);
+        opts = [hookName].concat(opts);
+    } else if (!(stats && stats.isFile() && isExecutable(stats))) {
         throw new Error('Cannot execute hook: ' + hookName + '. Please check file permissions.');
     }
-    return spawn(hookName, args, {stdio: 'inherit'});
+
+    return spawn(command, opts, {stdio: 'inherit'});
 }
 
 /**

lib/hook-template.js

@@ -1,7 +1,7 @@
 #!/usr/bin/env node
 
 try {
-    require('%s/git-hooks').run(__filename, process.argv[2], function (code) {
+    require('%s').run(__filename, process.argv[2], function (code) {
         process.exit(code);
     });
 } catch (e) {

package.json

@@ -50,6 +50,10 @@
     "examples",
     "lib"
   ],
+  "dependencies": {
+    "shebang-command": "1.0.0",
+    "shebang-regex": "2.0.0"
+  },
   "devDependencies": {
     "chai": "2.3.0",
     "istanbul": "0.3.17",

tests/run.test.js

@@ -2,6 +2,7 @@ require('chai').should();
 var fs = require('fs');
 var gitHooks = require('../lib/git-hooks');
 var fsHelpers = require('../lib/fs-helpers');
+var isWin32 = process.platform === 'win32';
 
 var SANDBOX_PATH = __dirname + '/tmp-sandbox/';
 var GIT_ROOT = SANDBOX_PATH + '.git/';
@@ -39,7 +40,8 @@ describe('git-hook runner', function () {
         describe('and a hook is unexecutable', function () {
             beforeEach(function () {
                 var logFile = SANDBOX_PATH + 'hello.log';
-                fs.writeFileSync(PROJECT_PRECOMMIT_HOOK + 'hello', '#!/bin/bash\n' + 'echo hello > ' + logFile);
+                var hook = (isWin32 ? '' : '#!/bin/bash\n') + 'echo hello > ' + logFile;
+                fs.writeFileSync(PROJECT_PRECOMMIT_HOOK + 'hello', hook);
             });
 
             it('should return an error', function () {
@@ -55,6 +57,9 @@ describe('git-hook runner', function () {
             beforeEach(function () {
                 hooks.forEach(function (name) {
                     var logFile = SANDBOX_PATH + name + '.log';
+                    if (isWin32) {
+                        logFile = logFile.replace(/\\/g, '\\\\');
+                    }
                     createHook(PROJECT_PRECOMMIT_HOOK + name, 'echo ' + name + '> ' + logFile);
                 });
             });
@@ -73,6 +78,9 @@ describe('git-hook runner', function () {
 
         describe('and works without errors', function () {
             var logFile = SANDBOX_PATH + 'hello.log';
+            if (isWin32) {
+                logFile = logFile.replace(/\\/g, '\\\\');
+            }
             beforeEach(function () {
                 createHook(PROJECT_PRECOMMIT_HOOK + 'hello', 'echo Hello, world! > ' + logFile);
             });