213 lines
8.0 KiB
JavaScript
213 lines
8.0 KiB
JavaScript
// Note: This is a GitHub Actions script
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// It is not meant to be executed directly on your machine without modifications
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const fs = require("fs");
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// how far back in time should we consider the changes are "recent"? (default: 24 hours)
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const DETECTION_TIME_FRAME = (parseInt(process.env.DETECTION_TIME_FRAME)) || (24 * 3600 * 1000);
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async function checkBaseChanges(github, context) {
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// query the commit date of the latest commit on this branch
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const query = `query($owner:String!, $name:String!, $ref:String!) {
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repository(name:$name, owner:$owner) {
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ref(qualifiedName:$ref) {
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target {
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... on Commit { id committedDate oid }
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}
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}
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}
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}`;
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const variables = {
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owner: context.repo.owner,
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name: context.repo.repo,
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ref: 'refs/heads/master',
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};
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const result = await github.graphql(query, variables);
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const committedAt = result.repository.ref.target.committedDate;
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console.log(`Last commit committed at ${committedAt}.`);
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const delta = new Date() - new Date(committedAt);
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if (delta <= DETECTION_TIME_FRAME) {
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console.info('New changes detected, triggering a new build.');
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return true;
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}
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console.info('No new changes detected.');
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return false;
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}
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async function checkCanaryChanges(github, context) {
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if (checkBaseChanges(github, context)) return true;
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const query = `query($owner:String!, $name:String!, $label:String!) {
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repository(name:$name, owner:$owner) {
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pullRequests(labels: [$label], states: OPEN, first: 100) {
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nodes { number headRepository { pushedAt } }
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}
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}
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}`;
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const variables = {
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owner: context.repo.owner,
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name: context.repo.repo,
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label: "canary-merge",
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};
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const result = await github.graphql(query, variables);
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const pulls = result.repository.pullRequests.nodes;
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for (let i = 0; i < pulls.length; i++) {
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let pull = pulls[i];
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if (new Date() - new Date(pull.headRepository.pushedAt) <= DETECTION_TIME_FRAME) {
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console.info(`${pull.number} updated at ${pull.headRepository.pushedAt}`);
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return true;
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}
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}
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console.info("No changes detected in any tagged pull requests.");
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return false;
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}
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async function tagAndPush(github, owner, repo, execa, commit=false) {
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let altToken = process.env.ALT_GITHUB_TOKEN;
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if (!altToken) {
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throw `Please set ALT_GITHUB_TOKEN environment variable. This token should have write access to ${owner}/${repo}.`;
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}
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const query = `query ($owner:String!, $name:String!) {
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repository(name:$name, owner:$owner) {
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refs(refPrefix: "refs/tags/", orderBy: {field: TAG_COMMIT_DATE, direction: DESC}, first: 10) {
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nodes { name }
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}
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}
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}`;
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const variables = {
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owner: owner,
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name: repo,
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};
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const tags = await github.graphql(query, variables);
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let lastTag = tags.repository.refs.nodes[0].name;
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let tagNumber = /\w+-(\d+)/.exec(lastTag)[1] | 0;
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let channel = repo.split('-')[1];
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let newTag = `${channel}-${tagNumber + 1}`;
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console.log(`New tag: ${newTag}`);
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if (commit) {
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let channelName = channel[0].toUpperCase() + channel.slice(1);
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console.info(`Committing pending commit as ${channelName} #${tagNumber + 1}`);
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await execa("git", ['commit', '-m', `${channelName} #${tagNumber + 1}`]);
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}
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console.info('Pushing tags to GitHub ...');
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await execa("git", ['tag', newTag]);
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await execa("git", ['remote', 'add', 'target', `https://${altToken}@github.com/${owner}/${repo}.git`]);
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await execa("git", ['push', 'target', 'master', '-f']);
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await execa("git", ['push', 'target', 'master', '-f', '--tags']);
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console.info('Successfully pushed new changes.');
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}
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async function generateReadme(pulls, context, mergeResults, execa) {
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let baseUrl = `https://github.com/${context.repo.owner}/${context.repo.repo}/`;
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let output =
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"| Pull Request | Commit | Title | Author | Merged? |\n|----|----|----|----|----|\n";
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for (let pull of pulls) {
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let pr = pull.number;
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let result = mergeResults[pr];
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output += `| [${pr}](${baseUrl}/pull/${pr}) | [\`${result.rev || "N/A"}\`](${baseUrl}/pull/${pr}/files) | ${pull.title} | [${pull.author.login}](https://github.com/${pull.author.login}/) | ${result.success ? "Yes" : "No"} |\n`;
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}
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output +=
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"\n\nEnd of merge log. You can find the original README.md below the break.\n\n-----\n\n";
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output += fs.readFileSync("./README.md");
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fs.writeFileSync("./README.md", output);
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await execa("git", ["add", "README.md"]);
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}
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async function fetchPullRequests(pulls, repoUrl, execa) {
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console.log("::group::Fetch pull requests");
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for (let pull of pulls) {
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let pr = pull.number;
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console.info(`Fetching PR ${pr} ...`);
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await execa("git", [
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"fetch",
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"-f",
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"--no-recurse-submodules",
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repoUrl,
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`pull/${pr}/head:pr-${pr}`,
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]);
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}
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console.log("::endgroup::");
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}
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async function mergePullRequests(pulls, execa) {
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let mergeResults = {};
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console.log("::group::Merge pull requests");
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await execa("git", ["config", "--global", "user.name", "citrabot"]);
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await execa("git", [
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"config",
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"--global",
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"user.email",
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"citra\x40citra-emu\x2eorg", // prevent email harvesters from scraping the address
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]);
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let hasFailed = false;
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for (let pull of pulls) {
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let pr = pull.number;
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console.info(`Merging PR ${pr} ...`);
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try {
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const process1 = execa("git", [
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"merge",
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"--squash",
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"--no-edit",
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`pr-${pr}`,
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]);
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process1.stdout.pipe(process.stdout);
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await process1;
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const process2 = execa("git", ["commit", "-m", `Merge PR ${pr}`]);
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process2.stdout.pipe(process.stdout);
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await process2;
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const process3 = await execa("git", ["rev-parse", "--short", `pr-${pr}`]);
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mergeResults[pr] = {
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success: true,
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rev: process3.stdout,
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};
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} catch (err) {
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console.log(
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`::error title=#${pr} not merged::Failed to merge pull request: ${pr}: ${err}`
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);
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mergeResults[pr] = { success: false };
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hasFailed = true;
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await execa("git", ["reset", "--hard"]);
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}
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}
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console.log("::endgroup::");
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if (hasFailed) {
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throw 'There are merge failures. Aborting!';
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}
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return mergeResults;
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}
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async function mergebot(github, context, execa) {
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const query = `query ($owner:String!, $name:String!, $label:String!) {
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repository(name:$name, owner:$owner) {
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pullRequests(labels: [$label], states: OPEN, first: 100) {
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nodes {
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number title author { login }
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}
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}
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}
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}`;
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const variables = {
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owner: context.repo.owner,
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name: context.repo.repo,
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label: "canary-merge",
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};
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const result = await github.graphql(query, variables);
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const pulls = result.repository.pullRequests.nodes;
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let displayList = [];
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for (let i = 0; i < pulls.length; i++) {
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let pull = pulls[i];
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displayList.push({ PR: pull.number, Title: pull.title });
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}
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console.info("The following pull requests will be merged:");
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console.table(displayList);
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await fetchPullRequests(pulls, "https://github.com/citra-emu/citra", execa);
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const mergeResults = await mergePullRequests(pulls, execa);
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await generateReadme(pulls, context, mergeResults, execa);
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await tagAndPush(github, context.repo.owner, `${context.repo.repo}-canary`, execa, true);
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}
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module.exports.mergebot = mergebot;
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module.exports.checkCanaryChanges = checkCanaryChanges;
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module.exports.tagAndPush = tagAndPush;
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module.exports.checkBaseChanges = checkBaseChanges;
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