Tasks: Add task for publishing to npm

Fixes gh-3

Author: jzaefferer

README.md

@@ -192,6 +192,10 @@ The previous release version (used for determining what changed).
 
 The version that will be set in `package.json` after the release.
 
+#### npmPublish
+
+Set to `true` to publish a release via npm. Defaults to `false`.
+
 #### tagTime
 
 Timestamp for the release tag.

lib/npm.js

@@ -0,0 +1,27 @@
+module.exports = function( Release ) {
+	Release.define({
+		_publishNpm: function() {
+			if ( !Release.npmPublish ) {
+				return;
+			}
+
+			Release.chdir( Release.dir.repo );
+
+			var npmCommand = "npm publish";
+
+			if ( Release.preRelease ) {
+				npmCommand += " --tag beta";
+			}
+
+			if ( Release.isTest ) {
+				console.log( "Actual release would now publish to npm" );
+				console.log( "Would run: " + npmCommand.cyan );
+				return;
+			}
+
+			console.log( "Publishing to npm, running " + npmCommand.cyan );
+			Release.exec( npmCommand );
+			console.log();
+		}
+	});
+};

release.js

@@ -43,7 +43,10 @@ commonTasks = [
 	Release._section( "publishing to jQuery CDN" ),
 	Release._copyCdnArtifacts,
 	Release.confirmReview,
-	Release._pushToCdn
+	Release._pushToCdn,
+
+	Release._section( "publishing to npm" ),
+	Release._publishNpm
 ];
 
 stableTasks = [