Version update task

2 files changed, 145 insertions, 0 deletions

diff --git a/tasks/release.js b/tasks/release.js
new file mode 100644
index 0000000..636670e
--- /dev/null
+++ b/tasks/release.js
@@ -0,0 +1,62 @@
+var async = require('async'),
+    git = require('./util/git'),
+    semver = require('semver');
+
+module.exports = function(grunt) {
+  grunt.registerTask('version', 'Updates the current release version', function() {
+    var done = this.async(),
+        pkg = grunt.config('pkg'),
+        version = grunt.option('ver');
+
+    if (version === 'major' || version === 'minor' || version === 'patch' || version === 'prerelease') {
+      version = semver.inc(pkg.version, version);
+    }
+    if (!semver.valid(version)) {
+      throw new Error('Must provide a version number (Ex: --ver=patch):\n\t' + version + '\n\n');
+    }
+
+    pkg.version = version;
+    grunt.config('pkg', pkg);
+
+    git.clean(function(err, clean) {
+      if (err || !clean) {
+        throw new Error('The repository must be clean');
+      }
+
+      grunt.log.write('Updating to version ' + version);
+
+      grunt.task.run(['build', 'tag']);
+
+      async.each([
+          ['lib/handlebars/base.js', /Handlebars.VERSION = "(.*)";/, 'Handlebars.VERSION = "' + version + '";'],
+          ['package.json', /"version":.*/, '"version": "' + version + '",'],
+          ['bower.json', /"version":.*/, '"version": "' + version + '",'],
+          ['handlebars.js.nuspec', /<version>.*<\/version>/, '<version>' + version + '</version>']
+        ],
+        function(args, callback) {
+          replace.apply(undefined, args);
+          git.add(args[0], callback);
+        },
+        done);
+    });
+  });
+
+  grunt.registerTask('tag', 'Tags the current release version', function() {
+    var done = this.async(),
+        name = 'v' + grunt.config('pkg').version;
+
+    async.series([
+        function(callback) { git.add('dist/handlebars.js', callback); },
+        function(callback) { git.add('dist/handlebars.runtime.js', callback); },
+        function(callback) { git.commit(name, callback); },
+        function(callback) { git.tag(name, callback); }
+      ],
+      done);
+  });
+
+  function replace(path, regex, replace) {
+    var content = grunt.file.read(path);
+    content = content.replace(regex, replace);
+    grunt.file.write(path, content);
+  }
+};
diff --git a/tasks/util/git.js b/tasks/util/git.js
new file mode 100644
index 0000000..53e0237
--- /dev/null
+++ b/tasks/util/git.js
@@ -0,0 +1,83 @@
+var childProcess = require('child_process');
+
+module.exports = {
+  clean: function(callback) {
+    childProcess.exec('git diff-index --name-only HEAD --', {}, function(err, stdout) {
+      callback(undefined, !err && !stdout);
+    });
+  },
+
+  commitInfo: function(callback) {
+    module.exports.head(function(err, headSha) {
+      module.exports.master(function(err, masterSha) {
+        module.exports.tagName(function(err, tagName) {
+          callback(undefined, {
+            head: headSha,
+            master: masterSha,
+            tagName: tagName,
+            isMaster: headSha === masterSha
+          });
+        });
+      });
+    });
+  },
+
+  head: function(callback) {
+    childProcess.exec('git rev-parse --short HEAD', {}, function(err, stdout) {
+      if (err) {
+        throw err;
+      }
+
+      callback(undefined, stdout.trim());
+    });
+  },
+  master: function(callback) {
+    childProcess.exec('git rev-parse --short origin/master', {}, function(err, stdout) {
+      if (err) {
+        throw err;
+      }
+
+      callback(undefined, stdout.trim());
+    });
+  },
+
+  add: function(path, callback) {
+    childProcess.exec('git add -f ' + path, {}, function(err, stdout) {
+      if (err) {
+        throw err;
+      }
+
+      callback();
+    });
+  },
+  commit: function(name, callback) {
+    childProcess.exec('git commit --message=' + name, {}, function(err, stdout) {
+      if (err) {
+        throw err;
+      }
+
+      callback();
+    });
+  },
+  tag: function(name, callback) {
+    childProcess.exec('git tag -a --message=' + name + ' ' + name, {}, function(err, stdout, stderr) {
+      console.log(name, stdout, stderr);
+      if (err) {
+        throw err;
+      }
+
+      callback();
+    });
+  },
+  tagName: function(callback) {
+    childProcess.exec('git tag -l --points-at HEAD', {}, function(err, stdout) {
+      if (err) {
+        throw err;
+      }
+
+      var tags = stdout.trim().split(/\n/),
+          versionTags = tags.filter(function(tag) { return /^v/.test(tag); });
+      callback(undefined, versionTags[0] || tags[0]);
+    });
+  }
+};