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fix: update branch was being called too often (bonus, also loosened strictness of review check) #307

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Feb 20, 2020
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49 changes: 13 additions & 36 deletions packages/merge-on-green/src/merge-logic.ts
Original file line number Diff line number Diff line change
Expand Up @@ -359,25 +359,6 @@ mergeOnGreen.getReviewsCompleted = async function getReviewsCompleted(
}
};

mergeOnGreen.getReviewsRequested = async function getReviewsRequested(
owner: string,
repo: string,
pr: number,
github: GitHubAPI
): Promise<ReviewsRequested> {
try {
return (
await github.pulls.listReviewRequests({
owner,
repo,
pull_number: pr,
})
).data as ReviewsRequested;
} catch (err) {
return { users: [], teams: [] };
}
};

//this function cleans the reviews, since the listReviews method github provides returns a complete history of all comments added
//and we just want the most recent for each reviewer
mergeOnGreen.cleanReviews = function cleanReviews(
Expand Down Expand Up @@ -407,10 +388,12 @@ mergeOnGreen.checkReviews = async function checkReviews(
github: GitHubAPI
): Promise<boolean> {
console.info('=== checking required reviews ===');
const [reviewsCompletedDirty, reviewsRequested] = await Promise.all([
mergeOnGreen.getReviewsCompleted(owner, repo, pr, github),
mergeOnGreen.getReviewsRequested(owner, repo, pr, github),
]);
const reviewsCompletedDirty = await mergeOnGreen.getReviewsCompleted(
owner,
repo,
pr,
github
);
let reviewsPassed = true;
const reviewsCompleted = mergeOnGreen.cleanReviews(reviewsCompletedDirty);
if (reviewsCompleted.length !== 0) {
Expand All @@ -425,13 +408,6 @@ mergeOnGreen.checkReviews = async function checkReviews(
console.log('No one has reviewed your PR');
return false;
}
if (
reviewsRequested.users.length !== 0 ||
reviewsRequested.teams.length !== 0
) {
console.log('You have assigned reviewers that have not submitted a review');
return false;
}
return reviewsPassed;
};

Expand Down Expand Up @@ -516,16 +492,17 @@ export async function mergeOnGreen(
);

if (checkReview === true && checkStatus === true) {
console.log('Updating branch');
await mergeOnGreen.updateBranch(owner, repo, pr, github);
console.log('Merging PR');
let merged = false;
try {
console.info(`attempt to merge ${owner}/${repo}`);
await mergeOnGreen.merge(owner, repo, pr, github);
return true;
merged = true;
} catch (err) {
console.log(err);
return false;
console.info(err);
console.log('Attempting to update branch');
await mergeOnGreen.updateBranch(owner, repo, pr, github);
}
return merged;
} else if (state === 'stop') {
console.log('Your PR timed out before its statuses & reviews passed');
await mergeOnGreen.commentOnPR(owner, repo, pr, github);
Expand Down
39 changes: 14 additions & 25 deletions packages/merge-on-green/test/merge-on-green.ts
Original file line number Diff line number Diff line change
Expand Up @@ -98,12 +98,6 @@ function getReviewsCompleted(response: Reviews[]) {
.reply(200, response);
}

function getReviewsRequested(response: ReviewRequests) {
return nock('https://api.github.com')
.get('/repos/testOwner/testRepo/pulls/1/requested_reviewers')
.reply(200, response);
}

function getLatestCommit(response: HeadSha[]) {
return nock('https://api.github.com')
.get('/repos/testOwner/testRepo/pulls/1/commits?per_page=100&page=1')
Expand Down Expand Up @@ -134,6 +128,12 @@ function merge() {
.reply(200);
}

function mergeWithError() {
return nock('https://api.github.com')
.put('/repos/testOwner/testRepo/pulls/1/merge')
.reply(400);
}

function commentOnPR() {
return nock('https://api.github.com')
.post('/repos/testOwner/testRepo/issues/1/comments')
Expand Down Expand Up @@ -185,15 +185,13 @@ describe('merge-on-green', () => {

const scopes = [
getReviewsCompleted([{ user: { login: 'octocat' }, state: 'APPROVED' }]),
getReviewsRequested({ users: [], teams: [] }),
getLatestCommit([{ sha: '6dcb09b5b57875f334f61aebed695e2e4193db5e' }]),
getMogLabel([{ name: 'automerge' }]),
getStatusi('6dcb09b5b57875f334f61aebed695e2e4193db5e', [
{ state: 'success', context: 'Kokoro - Test: Binary Compatibility' },
]),
requiredChecksByLanguage({ content: requiredChecks.toString('base64') }),
repoMap({ content: map.toString('base64') }),
updateBranch(),
merge(),
];

Expand Down Expand Up @@ -229,7 +227,6 @@ describe('merge-on-green', () => {
{ user: { login: 'octocat' }, state: 'APPROVED' },
{ user: { login: 'octokitten' }, state: 'CHANGES_REQUESTED' },
]),
getReviewsRequested({ users: [], teams: [] }),
getLatestCommit([{ sha: '6dcb09b5b57875f334f61aebed695e2e4193db5e' }]),
getMogLabel([{ name: 'automerge' }]),
getStatusi('6dcb09b5b57875f334f61aebed695e2e4193db5e', [
Expand Down Expand Up @@ -268,7 +265,6 @@ describe('merge-on-green', () => {

const scopes = [
getReviewsCompleted([{ user: { login: 'octocat' }, state: 'APPROVED' }]),
getReviewsRequested({ users: [], teams: [] }),
getLatestCommit([]),
getMogLabel([{ name: 'automerge' }]),
getStatusi('', [
Expand Down Expand Up @@ -307,7 +303,6 @@ describe('merge-on-green', () => {

const scopes = [
getReviewsCompleted([{ user: { login: 'octocat' }, state: 'APPROVED' }]),
getReviewsRequested({ users: [], teams: [] }),
getLatestCommit([{ sha: '6dcb09b5b57875f334f61aebed695e2e4193db5e' }]),
getMogLabel([{ name: 'this is not the label you are looking for' }]),
getStatusi('6dcb09b5b57875f334f61aebed695e2e4193db5e', [
Expand Down Expand Up @@ -346,7 +341,6 @@ describe('merge-on-green', () => {

const scopes = [
getReviewsCompleted([{ user: { login: 'octocat' }, state: 'APPROVED' }]),
getReviewsRequested({ users: [], teams: [] }),
getLatestCommit([{ sha: '6dcb09b5b57875f334f61aebed695e2e4193db5e' }]),
getMogLabel([{ name: 'automerge' }]),
getStatusi('6dcb09b5b57875f334f61aebed695e2e4193db5e', []),
Expand Down Expand Up @@ -383,7 +377,6 @@ describe('merge-on-green', () => {

const scopes = [
getReviewsCompleted([{ user: { login: 'octocat' }, state: 'APPROVED' }]),
getReviewsRequested({ users: [], teams: [] }),
getLatestCommit([{ sha: '6dcb09b5b57875f334f61aebed695e2e4193db5e' }]),
getMogLabel([{ name: 'automerge' }]),
getStatusi('6dcb09b5b57875f334f61aebed695e2e4193db5e', [
Expand Down Expand Up @@ -422,7 +415,6 @@ describe('merge-on-green', () => {

const scopes = [
getReviewsCompleted([{ user: { login: 'octocat' }, state: 'APPROVED' }]),
getReviewsRequested({ users: [], teams: [] }),
getLatestCommit([{ sha: '6dcb09b5b57875f334f61aebed695e2e4193db5e' }]),
getMogLabel([{ name: 'this is not the label you are looking for' }]),
getStatusi('6dcb09b5b57875f334f61aebed695e2e4193db5e', [
Expand Down Expand Up @@ -462,7 +454,6 @@ describe('merge-on-green', () => {

const scopes = [
getReviewsCompleted([{ user: { login: 'octocat' }, state: 'APPROVED' }]),
getReviewsRequested({ users: [], teams: [] }),
getLatestCommit([{ sha: '6dcb09b5b57875f334f61aebed695e2e4193db5e' }]),
getMogLabel([{ name: 'automerge' }]),
getStatusi('6dcb09b5b57875f334f61aebed695e2e4193db5e', [
Expand Down Expand Up @@ -501,7 +492,6 @@ describe('merge-on-green', () => {

const scopes = [
getReviewsCompleted([{ user: { login: 'octocat' }, state: 'APPROVED' }]),
getReviewsRequested({ users: [], teams: [] }),
getLatestCommit([{ sha: '6dcb09b5b57875f334f61aebed695e2e4193db5e' }]),
getMogLabel([{ name: 'automerge' }]),
getStatusi('6dcb09b5b57875f334f61aebed695e2e4193db5e', []),
Expand All @@ -515,7 +505,6 @@ describe('merge-on-green', () => {
}),
requiredChecksByLanguage({ content: requiredChecks.toString('base64') }),
repoMap({ content: map.toString('base64') }),
updateBranch(),
merge(),
];

Expand Down Expand Up @@ -548,7 +537,6 @@ describe('merge-on-green', () => {

const scopes = [
getReviewsCompleted([]),
getReviewsRequested({ users: [], teams: [] }),
getLatestCommit([{ sha: '6dcb09b5b57875f334f61aebed695e2e4193db5e' }]),
getMogLabel([{ name: 'automerge' }]),
getStatusi('6dcb09b5b57875f334f61aebed695e2e4193db5e', []),
Expand All @@ -573,7 +561,7 @@ describe('merge-on-green', () => {
scopes.forEach(s => s.done());
});

it('fails if people are assigned to review but have not reviewed', async () => {
it('passes when special checks are passed', async () => {
handler.listPRs = async () => {
const watchPr: WatchPR[] = [
{
Expand All @@ -593,20 +581,22 @@ describe('merge-on-green', () => {

const scopes = [
getReviewsCompleted([{ user: { login: 'octocat' }, state: 'APPROVED' }]),
getReviewsRequested({ users: ['user'], teams: [] }),
getLatestCommit([{ sha: '6dcb09b5b57875f334f61aebed695e2e4193db5e' }]),
getMogLabel([{ name: 'automerge' }]),
getStatusi('6dcb09b5b57875f334f61aebed695e2e4193db5e', []),
requiredChecksByLanguage({
content: specialRequiredChecks.toString('base64'),
}),
getRuns('6dcb09b5b57875f334f61aebed695e2e4193db5e', {
check_runs: [
{
name: 'Kokoro - Test: Binary Compatibility',
name: 'Special Check',
conclusion: 'success',
},
],
}),
requiredChecksByLanguage({ content: requiredChecks.toString('base64') }),
repoMap({ content: map.toString('base64') }),
merge(),
];

await probot.receive({
Expand All @@ -618,7 +608,7 @@ describe('merge-on-green', () => {
scopes.forEach(s => s.done());
});

it('passes when special checks are passed', async () => {
it('updates a branch if merge returns error', async () => {
handler.listPRs = async () => {
const watchPr: WatchPR[] = [
{
Expand All @@ -638,7 +628,6 @@ describe('merge-on-green', () => {

const scopes = [
getReviewsCompleted([{ user: { login: 'octocat' }, state: 'APPROVED' }]),
getReviewsRequested({ users: [], teams: [] }),
getLatestCommit([{ sha: '6dcb09b5b57875f334f61aebed695e2e4193db5e' }]),
getMogLabel([{ name: 'automerge' }]),
getStatusi('6dcb09b5b57875f334f61aebed695e2e4193db5e', []),
Expand All @@ -654,8 +643,8 @@ describe('merge-on-green', () => {
],
}),
repoMap({ content: map.toString('base64') }),
mergeWithError(),
updateBranch(),
merge(),
];

await probot.receive({
Expand Down