hub syncと同じようなコマンドをつくる

GitHub CLI(ghコマンド)がリリースされ、hubはほぼ更新されなくなりましたが、 hub sync コマンドは便利だったので作ってみた。

~/.zprofile か ~/.zshrc に以下を追加する。

alias ghs='github-sync'

github-sync() {
  local default
  default=$(git symbolic-ref refs/remotes/origin/HEAD 2>/dev/null | sed 's|refs/remotes/origin/||')

  if [[ -z "$default" ]]; then
    git remote set-head origin --auto >/dev/null 2>&1
    default=$(git symbolic-ref refs/remotes/origin/HEAD 2>/dev/null | sed 's|refs/remotes/origin/||')
  fi

  if [[ -z "$default" ]]; then
    default=$(gh repo view --json defaultBranchRef --jq '.defaultBranchRef.name' 2>/dev/null)
  fi

  if [[ -z "$default" ]]; then
    echo "Error: Failed to retrieve the default branch" >&2
    return 1
  fi

  echo "Default branch: $default"

  git checkout "$default" || return 1
  git fetch --prune origin || return 1
  git merge --ff-only "origin/$default" || return 1

  local merged
  merged=$(git branch --merged "$default" \
    | grep -v -E "^\*|^[[:space:]]*(${default}|master|main|develop|development)$")

  if [[ -z "$merged" ]]; then
    echo "No branches to delete"
  else
    echo "Branches to delete:"
    echo "$merged"
    echo "$merged" | xargs git branch -d
  fi
}

実行例

% ghs
Default branch: main
Switched to branch 'main'
Your branch is up to date with 'origin/main'.
From https://github.com/tenkoma/blog.tenkoma.dev
 - [deleted]         (none)     -> origin/add-post-script
remote: Enumerating objects: 7, done.
remote: Counting objects: 100% (7/7), done.
remote: Compressing objects: 100% (4/4), done.
remote: Total 4 (delta 2), reused 0 (delta 0), pack-reused 0 (from 0)
Unpacking objects: 100% (4/4), 2.00 KiB | 185.00 KiB/s, done.
   bad3b0d..dfe8da3  main       -> origin/main
Updating bad3b0d..dfe8da3
Fast-forward
 add-post.mjs | 55 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100755 add-post.mjs
Branches to delete:
  add-post-script
Deleted branch add-post-script (was 641c4b0).