feat: use git rev-parse

Author: technote-space

__tests__/git-helper.test.ts

@@ -43,7 +43,7 @@ describe('GitHelper', () => {
 		});
 
 		it('should get current branch name', async() => {
-			setChildProcessParams({stdout: '  master\n* test-branch\n  develop'});
+			setChildProcessParams({stdout: 'test-branch'});
 			expect(await helper.getCurrentBranchName(workDir)).toBe('test-branch');
 		});
 	});

src/git-helper.ts

@@ -125,8 +125,7 @@ export default class GitHelper {
 		if (!isCloned(workDir)) {
 			return '';
 		}
-		// eslint-disable-next-line no-magic-numbers
-		return (await this.runCommand(workDir, {command: 'git branch', args: ['-a']}))[0].stdout.find(branch => branch.startsWith('*'))?.slice(2).trim() ?? '';
+		return (await this.runCommand(workDir, {command: 'git rev-parse', args: ['--abbrev-ref', 'HEAD']}))[0].stdout[0]?.trim() ?? '';
 	};
 
 	/**