Merge pull request #91 from dorny/issue-90-get-local-branch

Fix #90 getLocalRef() returns wrong ref

Author: dorny

dist/index.js

@@ -4015,8 +4015,9 @@ async function getLocalRef(shortName) {
     const output = (await exec_1.default('git', ['show-ref', shortName], { ignoreReturnCode: true })).stdout;
     const refs = output
         .split(/\r?\n/g)
-        .map(l => { var _a, _b; return (_b = (_a = l.match(/refs\/.*$/)) === null || _a === void 0 ? void 0 : _a[0]) !== null && _b !== void 0 ? _b : ''; })
-        .filter(l => l !== '');
+        .map(l => l.match(/refs\/(?:(?:heads)|(?:tags)|(?:remotes\/origin))\/(.*)$/))
+        .filter(match => match !== null && match[1] === shortName)
+        .map(match => { var _a; return (_a = match === null || match === void 0 ? void 0 : match[0]) !== null && _a !== void 0 ? _a : ''; }); // match can't be null here but compiler doesn't understand that
     if (refs.length === 0) {
         return undefined;
     }

src/git.ts

@@ -215,8 +215,9 @@ async function getLocalRef(shortName: string): Promise<string | undefined> {
   const output = (await exec('git', ['show-ref', shortName], {ignoreReturnCode: true})).stdout
   const refs = output
     .split(/\r?\n/g)
-    .map(l => l.match(/refs\/.*$/)?.[0] ?? '')
-    .filter(l => l !== '')
+    .map(l => l.match(/refs\/(?:(?:heads)|(?:tags)|(?:remotes\/origin))\/(.*)$/))
+    .filter(match => match !== null && match[1] === shortName)
+    .map(match => match?.[0] ?? '') // match can't be null here but compiler doesn't understand that
 
   if (refs.length === 0) {
     return undefined