dotbare/scripts/flog

#!/bin/bash
#
# git log interactive viewer
#
# @params
# Globals
#   None
# Arguments
#   None

set -e
set -f

mydir="${0%/*}"
source "${mydir}"/../helper/set_variable.sh
source "${mydir}"/../helper/git_query.sh
source "${mydir}"/../helper/get_confirmation.sh

function usage() {
  echo -e "Usage: dotbare flog [-h] [-f] [-d] ...\n"
  echo -e "Interactive log viewer with action menu"
  echo -e "Action menu contains command including revert|reset|edit|checkout"
  echo -e "optional arguments:"
  echo -e "  -h\t\tshow this help message and exit"
}

#######################################
# draw action menu for selected commit
# Arguments:
#   $1: selected action, if selected, skip menu, return action
# Outputs:
#   ${selected_action}: user selected action
#######################################
function draw_menu() {
  local selected_action="$1"
  if [[ -n "$selected_action" ]]; then
    echo "${selected_action}"
  else
    menu="revert\nreset\nedit\ncheckout\nexit"
    selected_action=$(echo -e "${menu}" | fzf --no-multi)
    echo "${selected_action}"
  fi
}

selected_action=""

while getopts ":hr" opt; do
  case "$opt" in
    r)
      selected_action="revert"
      break
      ;;
    R)
      selected_action="reset"
      break
      ;;
    e)
      selected_action="edit"
      break
      ;;
    c)
      selected_action="checkout"
      break
      ;;
    h)
      usage
      exit 0
      ;;
    *)
      echo "Invalid option: ${OPTARG}" >&2
      usage
      exit 1
      ;;
  esac
done

while True; do
  selected_commit=$(get_commit)
  [[ -z "${selected_commit}" ]] && break
  selected_action=$(draw_menu "${selected_action}")
  [[ -z "${selected_action}" ]] && continue
  [[ "${selected_action}" == 'exit' ]] && break
done