SQL Operations Studio Public Preview 1 (0.23) release source code

build/lib/git.js

@@ -0,0 +1,53 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the Source EULA. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+'use strict';
+Object.defineProperty(exports, "__esModule", { value: true });
+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) {
+        // 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];
+}
+exports.getVersion = getVersion;