chronographer-github-app

Your severe chronographer who is watching you record all the news to change note files!

Configuring the installed app

Here's an example configuration file that a repository where Chronographer is installed can use optionally, to set certain aspects of this GitHub App's behavior:

# .github/chronographer.yml
---

action-hints:
  # check-title-prefix: chng  # default: `{{ branch-protection-check-name }}: `
  external-docs-url: https://pip.pypa.io/how-to-changelog
  inline-markdown: >
    Check out https://pip.pypa.io/how-to-changelog

branch-protection-check-name: Timeline protection

enforce-name:
  suffix: .rst  # can be empty or `.md` too

exclude:
  bots:
  - dependabot-preview
  - dependabot
  - patchback
  humans:
  - pyup-bot

labels:
  fragment-provided: change note detected  # default: `bot:chronographer:provided`, disable with `~`
  skip-changelog: skip news  # default: `bot:chronographer:skip`

paths:  # relative modified file paths that do or don't need changelog mention
  exclude: []
  include: []
  towncrier-config-filename: ~  # default: `~`, which means checking both

...

Running the app

Local development

1. Copy a dotenv config template: cp -v .env{.example,}
2. Change GITHUB_APP_IDENTIFIER value and GITHUB_PRIVATE_KEY contents
   • You should be able to inline the key using a trick like this:

     GITHUB_PRIVATE_KEY_PATH=~/Downloads/your-app-slug.2019-03-24.private-key.pem
     cat $GITHUB_PRIVATE_KEY_PATH | python3.7 -c 'import sys; inline_private_key=r"\n".join(map(str.strip, sys.stdin.readlines())); print(f"GITHUB_PRIVATE_KEY='"'"'{inline_private_key}'"'"'", end="")' >> .env

3. python3.7 -m chronographer

Known issues/limitations

• Re-requesting a check run from Checks page in PRs doesn't always work. For a mysterious reason, sometimes GitHub attaches a list of PRs to the events but sometimes that list is empty [complain here]. The link is historic and the discussion contents seem to have been lost during GitHub's platform migrations.