A GitHub App/Action that automates the creation of issue branches (either automatically after assigning an issue or after commenting on an issue with a ChatOps command: /create-issue-branch or /cib).

Built in response to this feature request issue: isaacs/github#1125

There are two options to run this app as part of your development workflow:

1. Install it as an app for your organization/account/repository
2. Run it as an action in your GitHub action YAML configuration

Option 1 is easiest if you're developing on GitHub.com, option 2 gives you full control how and when the app runs in your development workflow.

You can install the app for your organization/account/repository from this page

Add this to your workflow YAML configuration:

on:
    issues:
        types: [assigned]
    issue_comment:
        types: [created]

jobs:
    create_issue_branch_job:
        runs-on: ubuntu-latest
        steps:
        - name: Create Issue Branch
          uses: robvanderleek/create-issue-branch@master
          env:
            GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

This app can support your development workflow in two ways (modes): auto and chatops.

In "auto" mode the typical development workflow is:

1. An issue is created, for example: Issue 15: Fix nasty bug!

some time may pass

2. The issue is assigned
3. When the issue is assigned this app will create a new issue branch (for the example issue this branch will be called issue-15-Fix_nasty_bug)

In "chatops" mode the typical development workflow is:

1. An issue is created, for example: Issue 15: Fix nasty bug!

some time may pass

2. A developer that wants to work on this issue gives the ChatOps command /cib as a comment on the issue
3. This app will create a new issue branch (for the example issue this branch will be called issue-15-Fix_nasty_bug) By default the app notifies creation is completed with a comment on the issue.

This app does not require a configuration. However, if you want to override the default behaviour you can do so by placing a YAML file in your repository at the location: .github/issue-branch.yml with the overrides.

If the app has a problem with your configuration YAML (e.g.: invalid content) it will create an issue with the title "Error in Create Issue Branch app configuration" in the repo. Subsequent runs with an invalid configuration will not create new issues, only one stays open.

Organization/user wide configuration prevents a configuration in every individual repo and is supported by putting the YAML file .github/issue-branch.yml in a repository called .github. So, if your organization/username is acme, the full path becomes: https://github.com/acme/.github/blob/master/.github/issue-branch.yml.

The default mode is "auto", meaning a new issue branch is created after an issue is assigned.

You can change the mode to "chatops", meaning a new issue branch is created after commenting on an issue with /create-issue-branch or /cib, by puuting the following line in your issue-branch.yml:

mode: chatops

By default in mode "Auto" this app is silent. By default in mode "ChatOps" the app comments on the issue after creating a branch.

You can change this default behaviour by putting the following line in your issue-branch.yml:

silent: true # or false

Branch names are generated from the issue, there are 3 flavours:

1. tiny => an i followed by the issue number, for example: i15
2. short => the word issue followed by the issue number, for example: issue-15
3. full => the word issue followed by the issue number followed by the issue title, for example: issue-15-Fix_nasty_bug

The default is full, other types can be configured in the YAML like this:

branchName: tiny

or

branchName: short

You can override the source branch (by default the "default branch" of the repository is used) based on the issue label.

For example, if you want branches for issues with the enhancement label to have the dev branch as a source and branches for issues with the bug label to have the staging branch as a source, add this to your configuration YAML:

branches:
  - label: enhancement
    name: dev
  - label: bug
    name: staging

When issues have multiple labels the branch of the first match (based on the order in the configuration YAML will be used).

If a configured branch does not exist in the repository the "default branch" is used.

Branch names can be prefixed based on the label of an issue.

For example, if you want branches for issues with the enhancement label to have the feature/ prefix and branches for issues with the bug label to have the bugfix/ prefix, add this to your configuration YAML:

branches:
  - label: enhancement
    prefix: feature/
  - label: bug
    prefix: bugfix/

You can use ${...} placeholders in the prefix to substitute fields from the GitHub issue assignment JSON object. For example, if you want the GitHub login name of the user that created the issue in the branch prefix, add this to your configuration YAML:

branches:
  - label: enhancement
    prefix: feature/${issue.user.login}/

Check test/fixtures/issues.assigned.json for all possible placeholder names.

Wildcard characters '?' (matches any single character) and '*' (matches any sequence of characters, including the empty sequence) can be used in the label field.

For example, to set the default/fallback prefix issues/ for issues that do not have the enhancement or bug label, use this configuration:

branches:
  - label: enhancement
    prefix: feature/
  - label: bug
    prefix: bugfix/
  - label: '*'
    prefix: issues/

Remember to put quotes around a single asterisk ('*') in YAML

Please create an issue here: https://github.com/robvanderleek/create-issue-branch/issues

If you have suggestions for how create-issue-branch could be improved, or want to report a bug, open an issue! We'd love all and any contributions.

For more, check out the Contributing Guide.

ISC © 2019 Rob van der Leek [email protected] (https://twitter.com/robvanderleek)