0.1.0

AUTHORS.md

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+### Authors
+
+- joe fleming ([w33ble](https://github.com/w33ble))

CHANGELOG.md

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+### Changelog
+
+#### 0.1.0 (18 October 2018)
+- docs: update readme, add sample env [`a28d6a2`](https://git.w33ble.com/w33ble/gh-action-bot/commit/a28d6a25096efb9c8acea3e8d26e7f7f50dfd6b5)
+- feat: add retest comment, delete it [`ced41f4`](https://git.w33ble.com/w33ble/gh-action-bot/commit/ced41f4a495823205e5769e4531f923a982d29b4)
+- feat: process 2 pages of events [`c117cb8`](https://git.w33ble.com/w33ble/gh-action-bot/commit/c117cb847d5cb7a6b57b705e0c192cc725c0d646)
+- feat: fetch data for prs that need retest [`d1cfd7c`](https://git.w33ble.com/w33ble/gh-action-bot/commit/d1cfd7c20b17802f2de1b9153ae9a8392ed1bc44)
+- feat: add history tracking [`b6b5c27`](https://git.w33ble.com/w33ble/gh-action-bot/commit/b6b5c27ffc43ff2e1c1ccf041958021cf7c8c4d4)

README.md

@@ -1,10 +1,16 @@
 # gh-action-bot
 
-Action bot for Github.
+Action bot for Github. Checks a repo's event stream and leaves a ghost comment when your criteria is met.
 
 [![GitHub license](https://img.shields.io/badge/license-MIT-blue.svg)](https://raw.githubusercontent.com/w33ble/gh-action-bot/master/LICENSE)
-[![npm](https://img.shields.io/npm/v/gh-action-bot.svg)](https://www.npmjs.com/package/gh-action-bot)
+[![Project Status](https://img.shields.io/badge/status-stable-green.svg)](https://nodejs.org/api/documentation.html#documentation_stability_index)
-[![Project Status](https://img.shields.io/badge/status-experimental-orange.svg)](https://nodejs.org/api/documentation.html#documentation_stability_index)
+
+## Usage
+
+`node . owner/repo`
+
+You'll need to set some environment flags. Check `sample-env` for what is available, and you can copy the file to `.env` in the root and add your settings there as well.
+
 
 #### License
 

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();

package.json

@@ -1,6 +1,6 @@
 {
   "name": "gh-action-bot",
-  "version": "0.0.0",
+  "version": "0.1.0",
   "private": true,
   "description": "Action bot for Github",
   "main": "index",

sample-env

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+GITHUB_ACCESS_TOKEN=xxx
+COMMENT_ACTOR=ci-comment-username
+COMMENT_BODY_REGEXP=build failed
+COMMENT_BODY_REGEXP_FLAGS=i
+PULL_LABEL_FILTER=
+PULL_RETEST_BODY=retest

src/index.mjs

@@ -1,3 +1,80 @@
-export default function() {
+import dotenv from 'dotenv';
-  // 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 { createComment, deleteComment } from './lib/comments.mjs';
+import History from './lib/history.mjs';
+
+// load env vars from .env file
+dotenv.config();
+
+export default async function() {
+  // parse repo name from cli and create repo instance
+  const repo = createRepo(process.argv.splice(2)[0]);
+  const {
+    COMMENT_BODY_REGEXP,
+    COMMENT_BODY_REGEXP_FLAGS,
+    COMMENT_ACTOR,
+    PULL_LABEL_FILTER,
+    PULL_RETEST_BODY,
+  } = process.env;
+
+  // 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: new RegExp(COMMENT_BODY_REGEXP, COMMENT_BODY_REGEXP_FLAGS),
+    actor: COMMENT_ACTOR,
+  })).filter(comment => !history.get(comment.id));
+
+  // read pull data
+  const pulls = (await Promise.all(
+    comments.map(async comment => {
+      const pull = await getPull(repo, comment.number);
+
+      if (pull.state !== 'open') return false; // filter out any closed pulls
+      if (PULL_LABEL_FILTER && !pull.labels.includes(PULL_LABEL_FILTER)) return false; // filter on label
+
+      return { comment, pull };
+    })
+  )).filter(Boolean);
+
+  const records = (await Promise.all(
+    pulls.map(async ({ pull, comment }) => {
+      const commit = await getCommits(repo, pull.number, true);
+      const buildStatus = await getCommitStatus(repo, commit.sha);
+      // do nothing if the build has not started, or is pending or successful
+      if (!buildStatus || buildStatus.state === 'pending' || buildStatus.state === 'success')
+        return false;
+      return { comment, pull, commit, buildStatus };
+    })
+  )).filter(Boolean);
+
+  console.log(`Found ${records.length} outstanding failures`);
+
+  await Promise.all(
+    records.map(async record => {
+      console.log(`Re-testing PR #${record.pull.number}`);
+      const comment = await createComment(repo, records[0].pull.number, PULL_RETEST_BODY);
+      await deleteComment(repo, comment.id);
+    })
+  );
+
+  /*
+
+  TODO:
+
+  - [x] keep track of seen comment ids, only process new ones
+  - [x] check the pr's status and only retest if no longer "Pending"
+  - [x] add a retest comment
+    - POST /repos/:owner/:repo/issues/:number/comments
+  - [x] delete the retest comment
+  - [ ] delete the build comment
+  - [ ] delete ALL build failure comments
+    - DELETE /repos/:owner/:repo/issues/comments/:comment_id
+
+  */
 }

src/lib/comments.mjs

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+export async function createComment(repo, issueId, body) {
+  return repo.issues(issueId).comments.create({ body });
+}
+
+export async function deleteComment(repo, commentId) {
+  return repo.issues.comments(commentId).remove();
+}

src/lib/create_repo.mjs

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+/* 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 settings = {
+    token: process.env.GITHUB_ACCESS_TOKEN,
+  };
+
+  const octo = new Octokat(settings);
+  const [owner, name] = repo.split('/');
+
+  if (!owner || !name) usageError();
+
+  return octo.repos(owner, name);
+}

src/lib/get_comments.mjs

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+export default async function getEvents(repo, { body, actor } = {}) {
+  const events = await repo.events.fetch();
+
+  const items = await (async () => {
+    // process 2 pages of events
+    if (events.nextPage) {
+      const moreEvents = await events.nextPage.fetch();
+      return [...events.items, ...moreEvents.items];
+    }
+
+    return events.items;
+  })();
+
+  return items
+    .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);
+}

src/lib/get_commit_status.mjs

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+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) {
+  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;
+}

src/lib/get_commits.mjs

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+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) {
+  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);
+}

src/lib/get_pull.mjs

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+export default async function getPull(repo, id) {
+  const pull = await repo.pulls(id).fetch();
+  return {
+    id: pull.id,
+    url: pull.url,
+    number: pull.number,
+    state: pull.state,
+    title: pull.title,
+    labels: pull.labels.map(label => label.name),
+  };
+}