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Strip back pipeline to Rubocop linting only #2341

Strip back pipeline to Rubocop linting only

Strip back pipeline to Rubocop linting only #2341

Workflow file for this run

name: Linting
# Trigger each time HEAD branch is updated in a pull request
# see https://github.com/orgs/community/discussions/26366
on:
pull_request:
types: [synchronize]
jobs:
# Resources:
# number [1] being most important
# [1] https://github.com/actions/checkout/issues/520#issuecomment-1167205721
# [2] https://robertfaldo.medium.com/commands-to-run-rubocop-and-specs-you-changed-in-your-branch-e6d2f2e4110b
# [3] https://community.atlassian.com/t5/Bitbucket-questions/Git-diff-show-different-files-than-PR-Pull-Request/qaq-p/2331786
rubocop:
name: RuboCop
runs-on: ubuntu-latest
steps:
- name: 'Checkout PR branch (with test merge-commit)'
uses: actions/checkout@v3
with:
fetch-depth: 2 # to also fetch parent of PR
# Adapted from this great comment [1]. Git diff adapted from [2].
# "|| test $? = 1;" is used to ignore the exit code of grep when no files
# are found matching the pattern. For the "three dots" ... syntax, see [3].
- name: Get changed files
run: |
files=$(git diff --name-only --diff-filter=ACMR -r HEAD^1...HEAD | grep '\.rb$' || test $? = 1;)
printf "🎴 Changed ruby files: \n$files"
echo "CHANGED_FILES=$(echo ${files} | xargs)" >> $GITHUB_ENV
- name: Set up Ruby 3
if: env.CHANGED_FILES != ''
uses: ruby/setup-ruby@v1
with:
ruby-version: 3.1.4
bundler-cache: true
- name: Run RuboCop
if: env.CHANGED_FILES != ''
run: bundle exec rubocop --format github -- $CHANGED_FILES