47 lines
1.5 KiB
JavaScript
47 lines
1.5 KiB
JavaScript
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import { getOctokitOrNull } from '../github/octokit.js';
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import { resolveGitHubRepoFromDirectory } from '../github/repo/index.js';
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/**
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* Raw unified diff for a pull request.
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*
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* GitHub already returns the merge-base diff for a PR, so this matches the
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* three-dot semantics used for local branch reviews: work merged in from the
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* base branch is not part of it.
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*/
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export async function getPullRequestDiff(directory, number) {
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const octokit = getOctokitOrNull();
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if (!octokit) {
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throw Object.assign(new Error('Connect a GitHub account to review pull requests'), {
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statusCode: 401,
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code: 'github-not-connected',
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});
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}
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// The resolver returns `{ repo, remoteUrl }`, not the repo itself. Reading
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// `.owner` off the wrapper made this check fail for every repository.
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const { repo } = await resolveGitHubRepoFromDirectory(directory);
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if (!repo?.owner || !repo?.repo) {
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throw Object.assign(new Error('This directory has no GitHub remote'), {
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statusCode: 400,
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code: 'no-github-remote',
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});
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}
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const response = await octokit.request('GET /repos/{owner}/{repo}/pulls/{pull_number}', {
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owner: repo.owner,
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repo: repo.repo,
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pull_number: number,
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headers: { accept: 'application/vnd.github.v3.diff' },
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});
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const patch = typeof response?.data === 'string' ? response.data : '';
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if (!patch.trim()) {
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throw Object.assign(new Error(`Pull request #${number} has no diff`), {
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statusCode: 404,
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code: 'empty-diff',
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});
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}
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return { patch, meta: { owner: repo.owner, repo: repo.repo, number } };
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}
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