Command to automate deploying sweeping changes through github repos. Pass it a list of github URLs, absolute path to a script and a commit message.

auto-gh.sh

#!/bin/bash

# Check if enough arguments are passed
if [ "$#" -lt 3 ]; then
  echo "Usage: $0 <file_with_repo_urls> <path_to_script> <'commit_message'>"
  exit 1
fi

REPO_FILE=$1
SCRIPT_PATH=$2
COMMIT_MESSAGE="[skip ci] $3"

# Check if the script file exists and is executable
if [ ! -x "$SCRIPT_PATH" ]; then
  echo "The script at $SCRIPT_PATH does not exist or is not executable."
  exit 2
fi
# Initialize an empty array
repo_urls=()

# Read file line by line into the array
while IFS= read -r line || [[ -n "$line" ]]; do
  repo_urls+=("$line")
done < "$REPO_FILE"

# Check if the array is empty
if [ ${#repo_urls[@]} -eq 0 ]; then
  echo "The list file is empty."
  exit 3
fi

# Iterate over the array
for repo_url in "${repo_urls[@]}"; do

  # Extract repo name for directory cloning and branching
  repo_name=$(basename "$repo_url" .git)

  echo "Cloning $repo_url..."
  git clone "$repo_url" "$repo_name"
  cd "$repo_name"

  # Create a new branch for the commit
  branch_name="update-$(date +%Y%m%d%H%M%S)"
  git checkout -b "$branch_name"

  # Run the script on the cloned repo
  echo "Running script on $repo_name..."
  "$SCRIPT_PATH"

  # Commit the changes, if any
  if [ -n "$(git status --porcelain)" ]; then
    git add .
    git commit -m "$COMMIT_MESSAGE"
    git push origin "$branch_name"

    # Use GitHub CLI to create a pull request
    gh pr create --base main --head "$branch_name" --title "${COMMIT_MESSAGE:0:50}" --body "Automated changes by script"
  else
    echo "No changes in $repo_name. No commit or PR will be created."
  fi

  # Cleanup: Go back to the original directory and remove the cloned repo
  cd ..
  rm -rf "$repo_name"

done < "$REPO_FILE"