54 lines
		
	
	
		
			1.7 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			54 lines
		
	
	
		
			1.7 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
/**
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 * @license
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 * Copyright Google Inc. All Rights Reserved.
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 *
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 * Use of this source code is governed by an MIT-style license that can be
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 * found in the LICENSE file at https://angular.io/license
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 */
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// tslint:disable:no-console
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module.exports = (gulp) => () => {
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  const validateCommitMessage = require('../validate-commit-message');
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  const shelljs = require('shelljs');
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  let baseBranch = 'master';
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  const currentVersion = require('semver').parse(require('../../package.json').version);
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  const baseHead =
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      shelljs.exec(`git ls-remote --heads origin ${currentVersion.major}.${currentVersion.minor}.*`)
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          .trim()
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          .split('\n')
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          .pop();
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  if (baseHead) {
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    const match = /refs\/heads\/(.+)/.exec(baseHead);
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    baseBranch = match && match[1] || baseBranch;
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  }
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  // We need to fetch origin explicitly because it might be stale.
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  // I couldn't find a reliable way to do this without fetch.
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  result = shelljs.exec(
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      `git fetch origin ${baseBranch} && git log --reverse --format=%s HEAD ^origin/${baseBranch}`);
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  if (result.code) {
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    console.log(result.stderr);
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    process.exit(1);
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  }
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  const commitsByLine = result.trim().split(/\n/).filter(line => line != '');
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  console.log(`Examining ${commitsByLine.length} commits between HEAD and ${baseBranch}`);
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  if (commitsByLine.length == 0) {
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    console.log(`There are zero new commits between this HEAD and ${baseBranch}`);
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  }
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  const someCommitsInvalid = !commitsByLine.every(validateCommitMessage);
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  if (someCommitsInvalid) {
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    console.log('Please fix the failing commit messages before continuing...');
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    console.log(
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        'Commit message guidelines: https://github.com/angular/angular/blob/master/CONTRIBUTING.md#-commit-message-guidelines');
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    process.exit(1);
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  }
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};
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