Pull Request Conditional Merge

This library is to implement a bot to merge your pull request when CI passes.

You CI does not finish instantly; running tests may take tens of minutes, or many jobs may be queued already. Then, you may have said something like this:

Okay, I will merge this PR once CI passes.

This does not make you feel nice. You have to remember PRs you have to merge it later. You may forget a PR to be merged, and it may be fixing a simple typo but expected to be deployed as soon as possible.

You definitely need a bot to merge PR automatically, when CI got green.

This library is to merge PR when:

• The PR is labeled with ShipIt (you can customize the name of label)
• All CIs associated with the PR succeeded

Getting Started

1. Install

$ npm install --save pull-request-conditional-merge

2. Add new action to your web app (maybe Hubot?)

PullRequestConditionalMerge = require("pull-request-conditional-merge")
PullRequestConditionalMergeExpress = require("pull-request-conditional-merge/express")
 
module.exports = (robot) ->
  github = require('githubot')(robot)
  robot.router.post "/merge-pullrequest", PullRequestConditionalMergeExpress.action(PullRequestConditionalMerge, github, robot.logger, 'your-company')

You can pass additional setup function which takes PullRequestConditonalMerge object to action.

action = PullRequestConditionalMergeExpress.action PullRequestConditionalMerge, github, robot.logger, 'your-company', pr ->
  pr.label = 'LetBotMerge'

3. Setup a status hook on your GitHub repo

status hook is the one you need.

Customization

Label name

If you do not like ShipIt label, you can use your own label name.

PullRequestConditionalMerge.find github, owner: owner, repo: repo, sha: sha, (pr) ->
  pr.label = "MergeIt"

Logger

You can assign logger property. debug is the only level the library is using now.

PullRequestConditionalMerge.find github, owner: owner, repo: repo, sha: sha, (pr) ->
  pr.logger = {
    debug: (message) -> console.log(message)
  }

With hubot:

PullRequestConditionalMerge.find github, owner: owner, repo: repo, sha: sha, (pr) ->
  pr.logger = robot

Commit message

The default commit message is:

Merge pull request #3381, via bot

Assign a function to commitMessage to customize the message:

PullRequestConditionalMerge.find github, owner: owner, repo: repo, sha: sha, (pr) ->
  pr.commitMessage = -> "Merge by bot"

License

The library is available as open source under the terms of the MIT License.