WIP

index.js

@@ -2,4 +2,4 @@
 require = require('esm')(module);
 const mod = require('./src/index.mjs').default;
 
-module.exports = mod;
+mod();

index.mjs

@@ -1,3 +1,3 @@
 import mod from './src/index.mjs';
 
-export default mod;
+mod();

src/index.mjs

@@ -1,3 +1,79 @@
-export default function() {
-  // es6 module code goes here
+import createRepo from './lib/create_repo.mjs';
+import getComments from './lib/get_comments.mjs';
+import getPull from './lib/get_pull.mjs';
+import getCommits from './lib/get_commits.mjs';
+import getCommitStatus from './lib/get_commit_status.mjs';
+import History from './lib/history.mjs';
+
+export default async function() {
+  // parse repo name from cli and create repo instance
+  const repo = createRepo(process.argv.splice(2)[0]);
+
+  // load the history module
+  const history = new History();
+
+  // fetch comment info from event stream, filter for only new comments
+  const comments = (await getComments(repo, {
+    body: /build failed/i,
+    actor: 'elasticmachine',
+  })).filter(comment => true /*!history.get(comment.id)*/);
+
+  console.log(
+    comments
+      .map(comment => {
+        history.add(comment); // temp
+        return comment.number;
+      })
+      .join(',')
+  );
+
+  // read pull data, filter out any closed pulls
+  const pulls = (await Promise.all(
+    comments.map(async comment => {
+      const pull = await getPull(repo, comment.number);
+      if (pull.state !== 'open') return false;
+      return { comment, pull };
+    })
+  )).filter(Boolean);
+
+  const commits = await Promise.all(pulls.map(pull => getCommits(repo, pull.number, true)));
+
+  const buildStatus = await getCommitStatus(repo, commits[1].sha);
+
+  console.log(buildStatus);
+  process.exit();
+
+  Promise.resolve()
+
+    .then(commit =>
+      // get the status of the commit
+      repo.commits(commit.sha).statuses.fetch()
+    )
+    .then(statuses => {
+      if (statuses.lastPage) return statuses.lastPage.fetch();
+      return statuses;
+    })
+    .then(({ items }) => {
+      const buildStatus = items.find(item => item.context === 'kibana-ci');
+      // status will be one of: error, failure, pending, success
+      // we should skip the retest if the state is pending or success
+      console.log(`PR state: ${buildStatus.state}`);
+      return buildStatus;
+    })
+    .catch(err => console.error(err));
+
+  /*
+
+  TODO:
+
+  - [ ] keep track of seen comment ids, only process new ones
+  - [x] check the pr's status and only retest if no longer "Pending"
+  - [ ] add a retest comment
+    - POST /repos/:owner/:repo/issues/:number/comments
+  - [ ] delete the build comment
+    - DELETE /repos/:owner/:repo/issues/comments/:comment_id
+  - [ ] delete ALL build failure comments
+  - [ ] delete the retest comment
+
+  */
 }

src/lib/create_repo.mjs

@@ -0,0 +1,18 @@
+/* eslint no-console: 0 */
+import Octokat from 'octokat';
+
+function usageError() {
+  console.error('You must provide a github repo in the form of "owner/repo"');
+  process.exit(1);
+}
+
+export default function(repo) {
+  if (typeof repo !== 'string' || repo.length === 0) usageError();
+
+  const octo = new Octokat();
+  const [owner, name] = repo.split('/');
+
+  if (!owner || !name) usageError();
+
+  return octo.repos(owner, name);
+}

src/lib/get_comments.mjs

@@ -0,0 +1,88 @@
+export default async function getEvents(repo, { body, actor } = {}) {
+  return cache;
+  const { items: events } = await repo.events.fetch();
+
+  return events
+    .map(comment => {
+      // only comments created by specific user
+      if (comment.type !== 'IssueCommentEvent') return false;
+      if (comment.payload.action !== 'created') return false;
+      if (comment.actor.login !== actor) return false;
+      if (body && !body.test(comment.payload.comment.body)) return false;
+
+      return {
+        id: comment.id,
+        number: comment.payload.issue.number,
+        owner: comment.payload.issue.user.login,
+        labels: comment.payload.issue.labels.map(label => label.name),
+        comment_id: comment.payload.comment.id,
+        comment_author: comment.payload.comment.user.login,
+        comment_body: comment.payload.comment.body,
+      };
+    })
+    .filter(Boolean);
+}
+
+const cache = [ { id: '8438445273',
+number: 23819,
+owner: 'mattapperson',
+labels: [ ':Beats', 'beats-cm' ],
+comment_id: 430790622,
+comment_author: 'elasticmachine',
+comment_body: '## :broken_heart: Build Failed\n* [continuous-integration/kibana-ci/pull-request](https://kibana-ci.elastic.co/job/elastic-kibana-pull-request/5174/)\n\n' },
+{ id: '8438364880',
+number: 24158,
+owner: 'joshdover',
+labels: [],
+comment_id: 430786140,
+comment_author: 'elasticmachine',
+comment_body: '## :broken_heart: Build Failed\n* [continuous-integration/kibana-ci/pull-request](https://kibana-ci.elastic.co/job/elastic-kibana-pull-request/5153/)\n\n' },
+{ id: '8438241644',
+number: 24104,
+owner: 'graphaelli',
+labels: [],
+comment_id: 430777985,
+comment_author: 'elasticmachine',
+comment_body: '## :broken_heart: Build Failed\n* [continuous-integration/kibana-ci/pull-request](https://kibana-ci.elastic.co/job/elastic-kibana-pull-request/5150/)\n\n' },
+{ id: '8438206753',
+number: 24158,
+owner: 'joshdover',
+labels: [],
+comment_id: 430775791,
+comment_author: 'elasticmachine',
+comment_body: '## :broken_heart: Build Failed\n* [continuous-integration/kibana-ci/pull-request](https://kibana-ci.elastic.co/job/elastic-kibana-pull-request/5147/)\n\n' },
+{ id: '8438199856',
+number: 23819,
+owner: 'mattapperson',
+labels: [ ':Beats', 'beats-cm' ],
+comment_id: 430775402,
+comment_author: 'elasticmachine',
+comment_body: '## :broken_heart: Build Failed\n* [continuous-integration/kibana-ci/pull-request](https://kibana-ci.elastic.co/job/elastic-kibana-pull-request/5165/)\n\n' },
+{ id: '8438188563',
+number: 23648,
+owner: 'jbudz',
+labels: [ ':Operations' ],
+comment_id: 430774756,
+comment_author: 'elasticmachine',
+comment_body: '## :broken_heart: Build Failed\n* [continuous-integration/kibana-ci/pull-request](https://kibana-ci.elastic.co/job/elastic-kibana-pull-request/5144/)\n\n' },
+{ id: '8438183173',
+number: 24038,
+owner: 'cqliu1',
+labels: [ ':Canvas', ':Home', 'review', 'v6.5.0', 'v7.0.0' ],
+comment_id: 430774424,
+comment_author: 'elasticmachine',
+comment_body: '## :broken_heart: Build Failed\n* [continuous-integration/kibana-ci/pull-request](https://kibana-ci.elastic.co/job/elastic-kibana-pull-request/5145/)\n\n' },
+{ id: '8438163617',
+number: 24100,
+owner: 'jakelandis',
+labels: [ 'v6.5.0', 'v7.0.0' ],
+comment_id: 430773251,
+comment_author: 'elasticmachine',
+comment_body: '## :broken_heart: Build Failed\n* [continuous-integration/kibana-ci/pull-request](https://kibana-ci.elastic.co/job/elastic-kibana-pull-request/5142/)\n\n' },
+{ id: '8438139342',
+number: 24153,
+owner: 'cchaos',
+labels: [ 'backport' ],
+comment_id: 430771841,
+comment_author: 'elasticmachine',
+comment_body: '## :broken_heart: Build Failed\n* [continuous-integration/kibana-ci/pull-request](https://kibana-ci.elastic.co/job/elastic-kibana-pull-request/5143/)\n\n' } ];

src/lib/get_commit_status.mjs

@@ -0,0 +1,27 @@
+function getBuildStatus({ items: statuses }) {
+  const buildStatus = statuses.find(status => status.context === 'kibana-ci');
+  if (!buildStatus) return buildStatus;
+  return {
+    id: buildStatus.id,
+    url: buildStatus.url,
+    state: buildStatus.state,
+  };
+}
+
+export default async function getCommitStatus(repo, sha) {
+  return cache
+  const statuses = await repo.commits(sha).statuses.fetch();
+
+  const buildStatus = await (async stats => {
+    if (stats.lastPage) {
+      return getBuildStatus(await stats.lastPage.fetch());
+    }
+    return getBuildStatus(stats);
+  })(statuses);
+
+  return buildStatus;
+}
+
+const cache = { id: 5666338700,
+  url: 'https://api.github.com/repos/elastic/kibana/statuses/5f948924cc4fe34c7b9399e685927e93a18d7450',
+  state: 'pending' };

src/lib/get_commits.mjs

@@ -0,0 +1,28 @@
+function formatCommit(commit) {
+  return {
+    sha: commit.sha,
+    owner: commit.committer.login,
+    message: commit.commit.message,
+  }
+}
+
+function formatCommits(commits, lastOnly) {
+  if (lastOnly) return formatCommit(commits.pop());
+  return commits.map(c => formatCommit(c));
+}
+
+export default async function getCommits(repo, id, lastOnly = true) {
+  return cache;
+  const commits = await repo.pulls(id).commits.fetch();
+
+  if (commits.lastPage) {
+    const { items } = await commits.lastPage.fetch();
+    return formatCommits(items, lastOnly);
+  }
+
+  return formatCommits(commits.items, lastOnly);
+}
+
+const cache = { sha: '5f948924cc4fe34c7b9399e685927e93a18d7450',
+owner: 'mattapperson',
+message: 'Merge branch \'feature/x-pack/management/beats\' of github.com:elastic/kibana into feature/x-pack/management/beats' };

src/lib/get_pull.mjs

@@ -0,0 +1,15 @@
+export default async function getPull(repo, id) {
+  return cache;
+  const pull = await repo.pulls(id).fetch();
+  return {
+    id: pull.id,
+    url: pull.url,
+    number: pull.number,
+    state: pull.state,
+  };
+}
+
+const cache = { id: 220387229,
+  url: 'https://api.github.com/repos/elastic/kibana/pulls/23819',
+  number: 23819,
+  state: 'open' };