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feat(dev-infra): tooling to check out pending PR (#38474)

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Creates a tool within ng-dev to checkout a pending PR from the upstream repository.  This automates
an action that many developers on the Angular team need to do periodically in the process of testing
and reviewing incoming PRs.

Example usage:
  ng-dev pr checkout <pr-number>

PR Close #38474
This commit is contained in:
Joey Perrott
2020-08-14 16:49:07 -07:00
committed by Andrew Scott
parent 0af95332e9
commit dcc3f6d74d
11 changed files with 261 additions and 56 deletions
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19
dev-infra/utils/git/index.ts
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@ -147,6 +147,25 @@ export class GitClient {
return value.replace(this._githubTokenRegex, '<TOKEN>');
}
/**
* Checks out a requested branch or revision, optionally cleaning the state of the repository
* before attempting the checking. Returns a boolean indicating whether the branch or revision
* was cleanly checked out.
*/
checkout(branchOrRevision: string, cleanState: boolean): boolean {
if (cleanState) {
// Abort any outstanding ams.
this.runGraceful(['am', '--abort'], {stdio: 'ignore'});
// Abort any outstanding cherry-picks.
this.runGraceful(['cherry-pick', '--abort'], {stdio: 'ignore'});
// Abort any outstanding rebases.
this.runGraceful(['rebase', '--abort'], {stdio: 'ignore'});
// Clear any changes in the current repo.
this.runGraceful(['reset', '--hard'], {stdio: 'ignore'});
}
return this.runGraceful(['checkout', branchOrRevision], {stdio: 'ignore'}).status === 0;
}
/**
* Assert the GitClient instance is using a token with permissions for the all of the
* provided OAuth scopes.