bump-version: write also .url files for direct links

This change lets `bump-version.js` write out \`.url\` files so that e.g.

	https://gitforwindows.org/latest-64-bit-installer.url

will return the direct link to the latest 64-bit Git for Windows
downloader.

Ideally, this would not just be a file returning the URL as static
content, but instead redirect. However, that is currently not possible
with GitHub Pages (which backs Git for Windows' home page).

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>

Author: dscho

bump-version.js

@@ -19,6 +19,15 @@ var updateVersion = (version, tag, timestamp, url) => {
 		+ timestamp + '">Version ' + version + '</a></div>';
 	fs.writeFileSync('latest-version.txt', version);
 	fs.writeFileSync('latest-tag.txt', tag);
+	const urlPrefix = `https://github.com/git-for-windows/git/releases/download/${tag}`;
+	for (const bitness of ['64', '32']) {
+		fs.writeFileSync(`latest-${bitness}-bit-installer.url`,
+				 `${urlPrefix}/Git-${version}-${bitness}-bit.exe`);
+		fs.writeFileSync(`latest-${bitness}-bit-portable-git.url`,
+				 `${urlPrefix}/PortableGit-${version}-${bitness}-bit.7z.exe`);
+		fs.writeFileSync(`latest-${bitness}-bit-mingit.url`,
+				 `${urlPrefix}/MinGit-${version}-${bitness}-bit.zip`);
+	}
 	fs.readFile('index.html', 'utf8', (err, data) => {
 		if (err)
 			die(err);