60 lines
2.2 KiB
TypeScript
60 lines
2.2 KiB
TypeScript
/**
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* @license
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* Copyright Google LLC 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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import {getConfig} from '../../utils/config';
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import {error, info, red} from '../../utils/console';
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import {GitClient} from '../../utils/git/index';
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import {loadAndValidateConfig, TargetLabel} from '../merge/config';
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import {getBranchesFromTargetLabel, getTargetLabelFromPullRequest, InvalidTargetLabelError} from '../merge/target-label';
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export async function getTargetBranchesForPr(prNumber: number) {
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/** The ng-dev configuration. */
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const config = getConfig();
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/** Repo owner and name for the github repository. */
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const {owner, name: repo} = config.github;
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/** The singleton instance of the GitClient. */
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const git = GitClient.getInstance();
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/** The validated merge config. */
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const {config: mergeConfig, errors} = await loadAndValidateConfig(config, git.github);
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if (errors !== undefined) {
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throw Error(`Invalid configuration found: ${errors}`);
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}
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/** The current state of the pull request from Github. */
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const prData = (await git.github.pulls.get({owner, repo, pull_number: prNumber})).data;
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/** The list of labels on the PR as strings. */
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const labels = prData.labels.map(l => l.name);
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/** The branch targetted via the Github UI. */
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const githubTargetBranch = prData.base.ref;
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/** The active label which is being used for targetting the PR. */
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let targetLabel: TargetLabel;
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try {
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targetLabel = getTargetLabelFromPullRequest(mergeConfig!, labels);
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} catch (e) {
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if (e instanceof InvalidTargetLabelError) {
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error(red(e.failureMessage));
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process.exitCode = 1;
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return;
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}
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throw e;
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}
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/** The target branches based on the target label and branch targetted in the Github UI. */
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return await getBranchesFromTargetLabel(targetLabel, githubTargetBranch);
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}
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export async function printTargetBranchesForPr(prNumber: number) {
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const targets = await getTargetBranchesForPr(prNumber);
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if (targets === undefined) {
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return;
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}
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info.group(`PR #${prNumber} will merge into:`);
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targets.forEach(target => info(`- ${target}`));
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info.groupEnd();
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}
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