zsh-git-auto-fetch.plugin.zsh

#!/usr/bin/env zsh

FETCH_INTERVAL_SECONDS=900 # 15 minutes

_should_fetch() {
  # Do nothing if not inside a git repository
  command git rev-parse --is-inside-work-tree &>/dev/null || return 1

  local git_dir="$(realpath "$(git rev-parse --git-dir 2>/dev/null)")"
  local last_fetch_file="${git_dir}/SUSHICHAN044_last_auto_fetch_time"
  local current_time="$(date +%s)"

  if [[ -f $last_fetch_file ]]; then
    local last_fetch_time="$(cat "$last_fetch_file")"
    local elapsed_seconds=$((current_time - last_fetch_time))

    if ((elapsed_seconds < FETCH_INTERVAL_SECONDS)); then
      return 1
    fi
  fi

  echo "$current_time" >|"$last_fetch_file"
  return 0
}

_git_auto_fetch() {
  if _should_fetch; then
    echo "Auto-fetching git repositories..."
    command git fetch --all --prune &>/dev/null &
  fi
}

# Run once after zshrc is loaded
autoload -Uz add-zsh-hook
add-zsh-hook zshrc _git_auto_fetch