angular-docs-cn/dev-infra/commit-message/validate-range.ts

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/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import {info} from '../utils/console';
import {exec} from '../utils/shelljs';
import {parseCommitMessage} from './parse';
import {validateCommitMessage, ValidateCommitMessageOptions} from './validate';
// Whether the provided commit is a fixup commit.
const isNonFixup = (m: string) => !parseCommitMessage(m).isFixup;
// Extracts commit header (first line of commit message).
const extractCommitHeader = (m: string) => parseCommitMessage(m).header;
/** Validate all commits in a provided git commit range. */
export function validateCommitRange(range: string) {
// A random value is used as a string to allow for a definite split point in the git log result.
const randomValueSeparator = `${Math.random()}`;
// Custom git log format that provides the commit header and body, separated as expected with
// the custom separator as the trailing value.
const gitLogFormat = `%s%n%n%b${randomValueSeparator}`;
// Retrieve the commits in the provided range.
const result = exec(`git log --reverse --format=${gitLogFormat} ${range}`);
if (result.code) {
throw new Error(`Failed to get all commits in the range: \n ${result.stderr}`);
}
// Separate the commits from a single string into individual commits
const commits = result.split(randomValueSeparator).map(l => l.trim()).filter(line => !!line);
info(`Examining ${commits.length} commit(s) in the provided range: ${range}`);
// Check each commit in the commit range. Commits are allowed to be fixup commits for other
// commits in the provided commit range.
const allCommitsInRangeValid = commits.every((m, i) => {
const options: ValidateCommitMessageOptions = {
disallowSquash: true,
nonFixupCommitHeaders: isNonFixup(m) ?
undefined :
commits.slice(0, i).filter(isNonFixup).map(extractCommitHeader)
};
return validateCommitMessage(m, options);
});
if (allCommitsInRangeValid) {
info('√ All commit messages in range valid.');
} else {
// Exit with a non-zero exit code if invalid commit messages have
// been discovered.
process.exit(1);
}
}