prcache

prcache

# Another ChatGPT win, I only had to make one change
# This just builds a JSON-based cache (in your home dir, update the cacheFile if you don't like that) based on a git branch name, commit message, and pull request body
# Using those, it will create a new branch, add a commit, and (using the gh CLI) create a PR with the cached body
# This allows for however many cached values you need
# Pretty much only useful for large-scale small-change PR rollouts, like small GHA updates etc

prcache() {
  cacheFile="$HOME/.git_pr_cache.json"

  # Initialize the cache file with an empty array if it doesn't exist
  if [[ ! -f $cacheFile ]]; then
    echo "[]" > "$cacheFile"
  fi

  entries=$(jq '. | length' $cacheFile)
  if [[ "$entries" -gt 0 ]]; then
    echo "Cached entries found:"

    # Generate a TSV format with indices and use `column` to create a table (adjusted for macOS)
    jq -r 'to_entries | map("\(.key)\tBranch Name: \(.value.branchName)\tCommit Message: \(.value.commitMessage)\tPR Body: \(.value.prBody | gsub("\n"; " "))") | .[]' $cacheFile | column -t -s $'\t'

    read "selection?Enter the index of the entry you wish to use (or 'n' for a new entry): "
    if [[ $selection =~ ^[0-9]+$ ]]; then
      branchName=$(jq -r ".[$selection].branchName" $cacheFile)
      commitMessage=$(jq -r ".[$selection].commitMessage" $cacheFile)
      prBody=$(jq -r ".[$selection].prBody" $cacheFile)
    else
      echo "Creating a new entry..."
    fi
  fi

  if [[ -z $branchName ]]; then
    echo "Enter the branch name:"
    read branchName
    echo "Enter the commit message:"
    read commitMessage
    echo "Enter the PR body (Ctrl-D to finish):"
    prBody=$(cat)
  fi

    if [[ $selection =~ ^[0-9]+$ ]]; then
        echo "Not adding new entry"
    else
      # Add the new entry to the cache
      jq --arg bn "$branchName" --arg cm "$commitMessage" --arg pb "$prBody" \
         '. += [{"branchName":$bn, "commitMessage":$cm, "prBody":$pb}]' $cacheFile > tmp.$$.json && mv tmp.$$.json $cacheFile
    fi

  # Git operations
  git checkout -b "$branchName"
  git add .
  git commit -m "$commitMessage"
  gh pr create --title "$commitMessage" --body "$prBody"

  echo "PR created successfully with branch '$branchName'."
}