TIL, 2021-11-25, Dangerfile

Tutorials:

https://danger.systems/js/guides/the_dangerfile.html
Some use cases - https://danger.systems/reference.html
https://medium.com/@ivan.ha/integrate-danger-js-in-5-minutes-55515bc5355d
FAIL = CI will fail

Theoretically, what can it do?

Check PR title IF not WIP status.
- Must have Jira ticket
If got SVG in PR, check if did SVG optimisation
If got PNG or JPG in PR, check if did Squoosh optimisation
If package.json is modified, add a “can pls test other browsers”?
Check if console.log is in the PR
Check if there is a change in translations.json in a non-translations PR
Can choose to ignore everything if there is a do not run dangerfile label.
Add [SKIP-RELEASE] if a PR does not even need to be listed in the Weekly Release.

import { danger, message, warn } from 'danger';

const { git, github } = danger;

const RD_LABELS = {
  CI_CONFLICTS: {
    name: 'ci/conflicts',
    color: '#C62828',
    description: 'CI error or merge conflict',
  },
  DEPENDENCIES: {
    name: 'dependencies',
    color: '#ED89F4',
    description: 'Pull requests that update a dependency file',
  },
};

// Check if Ticket starts in the right format

message(
  `Jira ticket: [Ticket number]()`,
);

// Check if dependencies are being updated, and to have quick sanity test for different browsers.

const MODIFIED_FILES = danger.git.modified_files.join('- ');

if (MODIFIED_FILES.includes('package.json')) {
  warn('We changed package.json in this PR. Check other browsers too.');
  github.utils.createOrAddLabel(RD_LABELS.DEPENDENCIES);
}

// If there is no label applied, add WIP label.

if (github.issue.labels.length === 0) {
  message('No label applied. Adding WIP Label.');
  github.utils.createOrAddLabel(RD_LABELS.WIP);