Convert build/lib/git.js to TypeScript

alexdima · alexdima · commit d443f846746c · 2016-10-20T15:00:02.000+02:00
diff --git a/build/lib/git.js b/build/lib/git.js
@@ -1,57 +1,51 @@
-/*---------------------------------------------------------------------------------------------
- *  Copyright (c) Microsoft Corporation. All rights reserved.
- *  Licensed under the MIT License. See License.txt in the project root for license information.
- *--------------------------------------------------------------------------------------------*/
-
-var path = require('path');
-var fs = require('fs');
-
-exports.getVersion = function (repo) {
-	var git = path.join(repo, '.git');
-	var headPath = path.join(git, 'HEAD');
-	var head;
-
-	try {
-		head = fs.readFileSync(headPath, 'utf8').trim();
-	} catch (e) {
-		return void 0;
-	}
-
-	if (/^[0-9a-f]{40}$/i.test(head)) {
-		return head;
-	}
-
-	var refMatch = /^ref: (.*)$/.exec(head);
-
-	if (!refMatch) {
-		return void 0;
-	}
-
-	var ref = refMatch[1];
-	var refPath = path.join(git, ref);
-
-	try {
-		return fs.readFileSync(refPath, 'utf8').trim();
-	} catch (e) {
-		// noop
-	}
-
-	var packedRefsPath = path.join(git, 'packed-refs');
-	var refsRaw;
-
-	try {
-		refsRaw = fs.readFileSync(packedRefsPath, 'utf8').trim();
-	} catch (e) {
-		return void 0;
-	}
-
-	var refsRegex = /^([0-9a-f]{40})\s+(.+)$/gm;
-	var refsMatch;
-	var refs = {};
-
-	while (refsMatch = refsRegex.exec(refsRaw)) {
-		refs[refsMatch[2]] = refsMatch[1];
-	}
-
-	return refs[ref];
-};
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+"use strict";
+var path = require('path');
+var fs = require('fs');
+/**
+ * Returns the sha1 commit version of a repository or undefined in case of failure.
+ */
+function getVersion(repo) {
+    var git = path.join(repo, '.git');
+    var headPath = path.join(git, 'HEAD');
+    var head;
+    try {
+        head = fs.readFileSync(headPath, 'utf8').trim();
+    }
+    catch (e) {
+        return void 0;
+    }
+    if (/^[0-9a-f]{40}$/i.test(head)) {
+        return head;
+    }
+    var refMatch = /^ref: (.*)$/.exec(head);
+    if (!refMatch) {
+        return void 0;
+    }
+    var ref = refMatch[1];
+    var refPath = path.join(git, ref);
+    try {
+        return fs.readFileSync(refPath, 'utf8').trim();
+    }
+    catch (e) {
+    }
+    var packedRefsPath = path.join(git, 'packed-refs');
+    var refsRaw;
+    try {
+        refsRaw = fs.readFileSync(packedRefsPath, 'utf8').trim();
+    }
+    catch (e) {
+        return void 0;
+    }
+    var refsRegex = /^([0-9a-f]{40})\s+(.+)$/gm;
+    var refsMatch;
+    var refs = {};
+    while (refsMatch = refsRegex.exec(refsRaw)) {
+        refs[refsMatch[2]] = refsMatch[1];
+    }
+    return refs[ref];
+}
+exports.getVersion = getVersion;
diff --git a/build/lib/git.ts b/build/lib/git.ts
@@ -0,0 +1,61 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+"use strict";
+
+import * as path from 'path';
+import * as fs from 'fs';
+
+/**
+ * Returns the sha1 commit version of a repository or undefined in case of failure.
+ */
+export function getVersion(repo:string): string {
+	const git = path.join(repo, '.git');
+	const headPath = path.join(git, 'HEAD');
+	let head: string;
+
+	try {
+		head = fs.readFileSync(headPath, 'utf8').trim();
+	} catch (e) {
+		return void 0;
+	}
+
+	if (/^[0-9a-f]{40}$/i.test(head)) {
+		return head;
+	}
+
+	const refMatch = /^ref: (.*)$/.exec(head);
+
+	if (!refMatch) {
+		return void 0;
+	}
+
+	const ref = refMatch[1];
+	const refPath = path.join(git, ref);
+
+	try {
+		return fs.readFileSync(refPath, 'utf8').trim();
+	} catch (e) {
+		// noop
+	}
+
+	const packedRefsPath = path.join(git, 'packed-refs');
+	let refsRaw:string;
+
+	try {
+		refsRaw = fs.readFileSync(packedRefsPath, 'utf8').trim();
+	} catch (e) {
+		return void 0;
+	}
+
+	const refsRegex = /^([0-9a-f]{40})\s+(.+)$/gm;
+	let refsMatch: RegExpExecArray;
+	let refs:{[ref:string]:string} = {};
+
+	while (refsMatch = refsRegex.exec(refsRaw)) {
+		refs[refsMatch[2]] = refsMatch[1];
+	}
+
+	return refs[ref];
+}
