ci: migrate rebase-pr CI script to the circleci directory (#39592)
Migrate the rebase-pr script used on CI out of tools and into the circleci directory. Additionally removes its support for running in the local repository as this is now better handled by `ng-dev pr rebase <pr-number>`. PR Close #39592
This commit is contained in:
Joey Perrott
Andrew Kushnir
parent
938abc03bc
commit
726d7c123c
@ -220,7 +220,7 @@ jobs:
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git config user.name "angular-ci"
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git config user.name "angular-ci"
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git config user.email "angular-ci"
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git config user.email "angular-ci"
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# Rebase PR on top of target branch.
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# Rebase PR on top of target branch.
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node tools/rebase-pr.js
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node .circleci/rebase-pr.js
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else
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else
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echo "This build is not over a PR, nothing to do."
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echo "This build is not over a PR, nothing to do."
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fi
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fi
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207
.circleci/rebase-pr.js
Normal file
207
.circleci/rebase-pr.js
Normal file
@ -0,0 +1,207 @@
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/**
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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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/**
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* Rebases the current branch on top of the GitHub PR target branch.
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*
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* **Context:**
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* Since a GitHub PR is not necessarily up to date with its target branch, it is useful to rebase
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* prior to testing it on CI to ensure more up to date test results.
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*
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* **NOTE:**
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* This script cannot use external dependencies or be compiled because it needs to run before the
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* environment is setup.
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* Use only features supported by the NodeJS versions used in the environment.
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*/
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// tslint:disable:no-console
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const {execSync} = require('child_process');
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/** A regex to select a ref that matches our semver refs. */
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const semverRegex = /^(\d+)\.(\d+)\.x$/;
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// Run
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_main().catch(err => {
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console.log('Failed to rebase on top of target branch.\n');
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console.error(err);
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process.exitCode = 1;
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});
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// Helpers
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async function _main() {
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const refs = await getRefsAndShasForChange();
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// Log known refs and shas
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console.log(`--------------------------------`);
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console.log(` Target Branch: ${refs.base.ref}`);
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console.log(` Latest Commit for Target Branch: ${refs.target.latestSha}`);
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console.log(` Latest Commit for PR: ${refs.base.latestSha}`);
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console.log(` First Common Ancestor SHA: ${refs.commonAncestorSha}`);
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console.log(`--------------------------------`);
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console.log();
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// Get the count of commits between the latest commit from origin and the common ancestor SHA.
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const commitCount =
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exec(`git rev-list --count origin/${refs.base.ref}...${refs.commonAncestorSha}`);
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console.log(`Checking ${commitCount} commits for changes in the CircleCI config file.`);
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// Check if the files changed between the latest commit from origin and the common ancestor SHA
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// includes the CircleCI config.
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const circleCIConfigChanged = exec(`git diff --name-only origin/${refs.base.ref} ${
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refs.commonAncestorSha} -- .circleci/config.yml`);
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if (!!circleCIConfigChanged) {
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throw Error(`
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CircleCI config on ${refs.base.ref} has been modified since commit
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${refs.commonAncestorSha.slice(0, 7)}, which this PR is based on.
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Please rebase the PR on ${refs.base.ref} after fetching from upstream.
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Rebase instructions for PR Author, please run the following commands:
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git fetch upstream ${refs.base.ref};
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git checkout ${refs.target.ref};
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git rebase upstream/${refs.base.ref};
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git push --force-with-lease;
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`);
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} else {
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console.log('No change found in the CircleCI config file, continuing.');
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}
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console.log();
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// Rebase the PR.
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exec(`git rebase origin/${refs.base.ref}`);
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console.log(`Rebased current branch onto ${refs.base.ref}.`);
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}
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/**
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* Sort a list of fullpath refs into a list and then provide the first entry.
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*
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* The sort order will first find master ref, and then any semver ref, followed
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* by the rest of the refs in the order provided.
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*
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* Branches are sorted in this order as work is primarily done on master, and
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* otherwise on a semver branch. If neither of those were to match, the most
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* likely correct branch will be the first one encountered in the list.
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*/
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function getRefFromBranchList(gitOutput) {
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const branches = gitOutput.split('\n').map(b => b.split('/').slice(1).join('').trim());
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return branches.sort((a, b) => {
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if (a === 'master') {
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return -1;
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}
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if (b === 'master') {
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return 1;
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}
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const aIsSemver = semverRegex.test(a);
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const bIsSemver = semverRegex.test(b);
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if (aIsSemver && bIsSemver) {
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const [, aMajor, aMinor] = a.match(semverRegex);
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const [, bMajor, bMinor] = b.match(semverRegex);
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return parseInt(bMajor, 10) - parseInt(aMajor, 10) ||
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parseInt(aMinor, 10) - parseInt(bMinor, 10) || 0;
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}
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if (aIsSemver) {
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return -1;
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}
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if (bIsSemver) {
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return 1;
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}
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return 0;
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})[0];
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}
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/**
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* Get the full sha of the ref provided.
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*
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* example: 1bc0c1a6c01ede7168f22fa9b3508ba51f1f464e
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*/
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function getShaFromRef(ref) {
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return exec(`git rev-parse ${ref}`);
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}
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/**
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* Get the list of branches which contain the provided sha, sorted in descending order
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* by committerdate.
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*
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* example:
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* upstream/master
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* upstream/9.0.x
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* upstream/test
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* upstream/1.1.x
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*/
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function getBranchListForSha(sha, remote) {
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return exec(`git branch -r '${remote}/*' --sort=-committerdate --contains ${sha}`);
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}
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/** Get the common ancestor sha of the two provided shas. */
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function getCommonAncestorSha(sha1, sha2) {
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return exec(`git merge-base ${sha1} ${sha2}`);
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}
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/**
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* Adds the remote to git, if it doesn't already exist. Returns a boolean indicating
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* whether the remote was added by the command.
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*/
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function addAndFetchRemote(owner, name) {
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const remoteName = `${owner}_${name}`;
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exec(`git remote add ${remoteName} https://github.com/${owner}/${name}.git`, false);
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exec(`git fetch ${remoteName}`);
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return remoteName;
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}
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/** Get the ref and latest shas for the provided sha on a specific remote. */
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function getRefAndShas(sha, owner, name) {
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const remoteName = addAndFetchRemote(owner, name);
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// Get the ref on the remote for the sha provided.
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const branches = getBranchListForSha(sha, remoteName);
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const ref = getRefFromBranchList(branches);
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// Get the latest sha on the discovered remote ref.
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const latestSha = getShaFromRef(`${remoteName}/${ref}`);
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return {remote: remoteName, ref, latestSha, sha};
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}
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/** Gets the refs and shas for the base and target of the current environment. */
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function getRefsAndShasForChange() {
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const base = getRefAndShas(
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process.env['CI_GIT_BASE_REVISION'], process.env['CI_REPO_OWNER'],
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process.env['CI_REPO_NAME']);
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const target = getRefAndShas(
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process.env['CI_GIT_REVISION'], process.env['CI_PR_USERNAME'], process.env['CI_PR_REPONAME']);
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const commonAncestorSha = getCommonAncestorSha(base.sha, target.sha);
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return {
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base,
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target,
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commonAncestorSha,
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};
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}
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/**
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* Synchronously executes the command.
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*
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* Return the trimmed stdout as a string, with an added attribute of the exit code.
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*/
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function exec(command, allowStderr = true) {
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let output = new String();
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output.code = 0;
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try {
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output += execSync(command, {stdio: ['pipe', 'pipe', 'pipe']}).toString().trim();
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} catch (err) {
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allowStderr && console.error(err.stderr.toString());
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output.code = err.status;
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}
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return output;
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}
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@ -1,102 +0,0 @@
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/**
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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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/**
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* **Usage:**
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* ```
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* node rebase-pr <github-repository> <pull-request-number>
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* ```
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* **Example:**
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* ```
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* node rebase-pr angular/angular 123
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* ```
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*
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* Rebases the current branch on top of the GitHub PR target branch.
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*
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* **Context:**
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* Since a GitHub PR is not necessarily up to date with its target branch, it is useful to rebase
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* prior to testing it on CI to ensure more up to date test results.
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*
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* **Implementation details:**
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* This script obtains the base for a GitHub PR via the
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* [GitHub PR API](https://developer.github.com/v3/pulls/#get-a-single-pull-request), then
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* fetches that branch, and rebases the current branch on top of it.
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*
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* **NOTE:**
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* This script cannot use external dependencies or be compiled because it needs to run before the
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* environment is setup.
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* Use only features supported by the NodeJS versions used in the environment.
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*/
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// This script uses `console` to print messages to the user.
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// tslint:disable:no-console
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// Imports
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const util = require('util');
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const child_process = require('child_process');
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const exec = util.promisify(child_process.exec);
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const getRefsAndShasForChange = require('./utils/git-get-changeset-refs');
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// Run
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_main().catch(err => {
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console.log('Failed to rebase on top of target branch.\n');
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console.error(err);
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process.exitCode = 1;
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});
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// Helpers
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async function _main() {
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const refs = await getRefsAndShasForChange();
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// Log known refs and shas
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console.log(`--------------------------------`);
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console.log(` Target Branch: ${refs.base.ref}`);
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console.log(` Latest Commit for Target Branch: ${refs.target.latestSha}`);
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console.log(` Latest Commit for PR: ${refs.base.latestSha}`);
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console.log(` First Common Ancestor SHA: ${refs.commonAncestorSha}`);
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console.log(`--------------------------------`);
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console.log();
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// Get the count of commits between the latest commit from origin and the common ancestor SHA.
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const {stdout: commitCount} =
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await exec(`git rev-list --count origin/${refs.base.ref}...${refs.commonAncestorSha}`);
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console.log(`Checking ${commitCount.trim()} commits for changes in the CircleCI config file.`);
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// Check if the files changed between the latest commit from origin and the common ancestor SHA
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// includes the CircleCI config.
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const {stdout: circleCIConfigChanged} = await exec(`git diff --name-only origin/${
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refs.base.ref} ${refs.commonAncestorSha} -- .circleci/config.yml`);
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if (!!circleCIConfigChanged) {
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throw Error(`
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CircleCI config on ${refs.base.ref} has been modified since commit ${
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refs.commonAncestorSha.slice(0, 7)},
|
|
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which this PR is based on.
|
|
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|
|
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Please rebase the PR on ${refs.base.ref} after fetching from upstream.
|
|
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|
|
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Rebase instructions for PR Author, please run the following commands:
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git fetch upstream ${refs.base.ref};
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git checkout ${refs.target.ref};
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git rebase upstream/${refs.base.ref};
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git push --force-with-lease;
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`);
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} else {
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console.log('No change found in the CircleCI config file, continuing.');
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}
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console.log();
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// Rebase the PR.
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console.log(`Rebasing current branch on ${refs.base.ref}.`);
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await exec(`git rebase origin/${refs.base.ref}`);
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console.log('Rebase successful.');
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}
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@ -1,181 +0,0 @@
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/**
|
|
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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
|
|
||||||
*/
|
|
||||||
|
|
||||||
const {execSync} = require('child_process');
|
|
||||||
|
|
||||||
/** A regex to select a ref that matches our semver refs. */
|
|
||||||
const semverRegex = /^(\d+)\.(\d+)\.x$/;
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Synchronously executes the command.
|
|
||||||
*
|
|
||||||
* Return the trimmed stdout as a string, with an added attribute of the exit code.
|
|
||||||
*/
|
|
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function exec(command, allowStderr = true) {
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let output = new String();
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output.code = 0;
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try {
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output += execSync(command, {stdio: ['pipe', 'pipe', 'pipe']}).toString().trim();
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} catch (err) {
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allowStderr && console.error(err.stderr.toString());
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output.code = err.status;
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}
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return output;
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}
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|
|
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/**
|
|
||||||
* Sort a list of fullpath refs into a list and then provide the first entry.
|
|
||||||
*
|
|
||||||
* The sort order will first find master ref, and then any semver ref, followed
|
|
||||||
* by the rest of the refs in the order provided.
|
|
||||||
*
|
|
||||||
* Branches are sorted in this order as work is primarily done on master, and
|
|
||||||
* otherwise on a semver branch. If neither of those were to match, the most
|
|
||||||
* likely correct branch will be the first one encountered in the list.
|
|
||||||
*/
|
|
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function getRefFromBranchList(gitOutput, remote) {
|
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const branches = gitOutput.split('\n').map(b => b.split('/').slice(1).join('').trim());
|
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return branches.sort((a, b) => {
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if (a === 'master') {
|
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return -1;
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}
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if (b === 'master') {
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return 1;
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}
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const aIsSemver = semverRegex.test(a);
|
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const bIsSemver = semverRegex.test(b);
|
|
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if (aIsSemver && bIsSemver) {
|
|
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const [, aMajor, aMinor] = a.match(semverRegex);
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|
||||||
const [, bMajor, bMinor] = b.match(semverRegex);
|
|
||||||
return parseInt(bMajor, 10) - parseInt(aMajor, 10) ||
|
|
||||||
parseInt(aMinor, 10) - parseInt(bMinor, 10) || 0;
|
|
||||||
}
|
|
||||||
if (aIsSemver) {
|
|
||||||
return -1;
|
|
||||||
}
|
|
||||||
if (bIsSemver) {
|
|
||||||
return 1;
|
|
||||||
}
|
|
||||||
return 0;
|
|
||||||
})[0];
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Get the full sha of the ref provided.
|
|
||||||
*
|
|
||||||
* example: 1bc0c1a6c01ede7168f22fa9b3508ba51f1f464e
|
|
||||||
*/
|
|
||||||
function getShaFromRef(ref) {
|
|
||||||
return exec(`git rev-parse ${ref}`);
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Get the list of branches which contain the provided sha, sorted in descending order
|
|
||||||
* by committerdate.
|
|
||||||
*
|
|
||||||
* example:
|
|
||||||
* upstream/master
|
|
||||||
* upstream/9.0.x
|
|
||||||
* upstream/test
|
|
||||||
* upstream/1.1.x
|
|
||||||
*/
|
|
||||||
function getBranchListForSha(sha, remote) {
|
|
||||||
return exec(`git branch -r '${remote}/*' --sort=-committerdate --contains ${sha}`);
|
|
||||||
}
|
|
||||||
|
|
||||||
/** Get the common ancestor sha of the two provided shas. */
|
|
||||||
function getCommonAncestorSha(sha1, sha2) {
|
|
||||||
return exec(`git merge-base ${sha1} ${sha2}`);
|
|
||||||
}
|
|
||||||
|
|
||||||
/** Removes the remote from git. */
|
|
||||||
function removeRemote(remote) {
|
|
||||||
exec(`git remote remove ${remote}`);
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Adds the remote to git, if it doesn't already exist. Returns a boolean indicating
|
|
||||||
* whether the remote was added by the command.
|
|
||||||
*/
|
|
||||||
function addRemote(remote) {
|
|
||||||
return !exec(`git remote add ${remote} https://github.com/${remote}/angular.git`, false).code;
|
|
||||||
}
|
|
||||||
|
|
||||||
/** Fetch latest from the remote. */
|
|
||||||
function fetchRemote(remote) {
|
|
||||||
exec(`git fetch ${remote}`);
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Get the nearest ref which the HEAD has a parent commit.
|
|
||||||
*
|
|
||||||
* Checks up to a limit of 100 previous shas.
|
|
||||||
*/
|
|
||||||
function getParentBranchForHead(remote) {
|
|
||||||
// Get the latest for the remote.
|
|
||||||
fetchRemote(remote);
|
|
||||||
|
|
||||||
let headCount = 0;
|
|
||||||
while (headCount < 100) {
|
|
||||||
// Attempt to get the ref on the remote for the sha.
|
|
||||||
const branches = getBranchListForSha(`HEAD~${headCount}`, remote);
|
|
||||||
const ref = getRefFromBranchList(branches, remote);
|
|
||||||
// If the ref exists, get the sha and latest sha for the remote ref.
|
|
||||||
if (ref) {
|
|
||||||
const sha = getShaFromRef(`HEAD~${headCount}`);
|
|
||||||
const latestSha = getShaFromRef(`${remote}/${ref}`);
|
|
||||||
return {ref, sha, latestSha, remote};
|
|
||||||
}
|
|
||||||
headCount++;
|
|
||||||
}
|
|
||||||
return {ref: '', latestSha: '', sha, remote};
|
|
||||||
}
|
|
||||||
|
|
||||||
/** Get the ref and latest shas for the provided sha on a specific remote. */
|
|
||||||
function getRefAndShas(sha, remote) {
|
|
||||||
// Ensure the remote is defined in git.
|
|
||||||
let markRemoteForClean = addRemote(remote);
|
|
||||||
// Get the latest from the remote.
|
|
||||||
fetchRemote(remote);
|
|
||||||
|
|
||||||
// Get the ref on the remote for the sha provided.
|
|
||||||
const branches = getBranchListForSha(sha, remote);
|
|
||||||
const ref = getRefFromBranchList(branches, remote);
|
|
||||||
|
|
||||||
// Get the latest sha on the discovered remote ref.
|
|
||||||
const latestSha = getShaFromRef(`${remote}/${ref}`);
|
|
||||||
|
|
||||||
// Clean up the remote if it didn't exist before execution.
|
|
||||||
if (markRemoteForClean) {
|
|
||||||
removeRemote(remote);
|
|
||||||
}
|
|
||||||
|
|
||||||
return {remote, ref, latestSha, sha};
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
/** Gets the refs and shas for the base and target of the current environment. */
|
|
||||||
function getRefsAndShasForChange() {
|
|
||||||
let base, target;
|
|
||||||
if (process.env['CI']) {
|
|
||||||
base = getRefAndShas(process.env['CI_GIT_BASE_REVISION'], process.env['CI_REPO_OWNER']);
|
|
||||||
target = getRefAndShas(process.env['CI_GIT_REVISION'], process.env['CI_PR_USERNAME']);
|
|
||||||
} else {
|
|
||||||
const originSha = getShaFromRef(`HEAD`);
|
|
||||||
target = getRefAndShas(originSha, 'origin');
|
|
||||||
base = getParentBranchForHead('upstream');
|
|
||||||
}
|
|
||||||
const commonAncestorSha = getCommonAncestorSha(base.sha, target.sha);
|
|
||||||
return {
|
|
||||||
base,
|
|
||||||
target,
|
|
||||||
commonAncestorSha,
|
|
||||||
};
|
|
||||||
}
|
|
||||||
|
|
||||||
module.exports = getRefsAndShasForChange;
|
|
||||||
Loading…
x
Reference in New Issue
Block a user