Automatically runs Black code formatter on specified repos. Easily changed to any other tool/process.

auto_black.sh

#!/bin/bash

declare -a repo_names=("repo" "names" "here")

for r in ${repo_names[@]}; do

  echo "-----------------------"
  echo "$r:"

  if [ ! -s $r ]
  then
    git clone https://github.com/org-name-here/$r
  fi

  cd $r
  echo "Checking out default branch..."
  git checkout $(git remote show origin | sed -n '/HEAD branch/s/.*: //p')
  echo "Pulling default branch.."
  git pull
  echo "Checking out new branch..."
  git checkout -b automated-black-integration

  if [ ! -s .github/workflows/ ]
  then
    echo "$r doesn't have any github actions! Be careful!"
    mkdir -p .github/workflows/
  fi

  if [ -s .github/workflows/black.yml ]
  then
    echo "Not adding to $r as it already has black.yml"
  else
    echo "Adding black.yml..."
    echo """name: Lint

on: [push, pull_request]

jobs:
  lint:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - uses: psf/black@stable
        with:
          src: "./src"""" > .github/workflows/black.yml
    echo "git adding black.yml..."
    git add .github/workflows/black.yml
    echo "git committing black.yml..."
    git commit .github/workflows/black.yml -m "Adds GH Actions black.yml."
  fi

  echo "linting src..."
  black src/
  echo "committing changes..."
  git commit -am "Runs initial Black formatting."
  echo "pushing changes..."
  git push

  echo "creating pr..."
  gh pr create -B $(git remote show origin | sed -n '/HEAD branch/s/.*: //p') -r conor-f --title "Adds GH Actions for Black." --body "Automated Commits."

  echo "cd back to code root..."
  cd ../
  echo "Completed $r!"
  echo "-----------------------"
done