sdfm

# simple dot files manager

[ -n "$SDFM_GIT_DIR" ] || SDFM_GIT_DIR="$HOME/.local/state/sdfm"
[ -n "$SDFM_GIT_WORKTREE" ] || SDFM_GIT_WORKTREE="$HOME"
[ -n "$SDFM_GIT_REMOTE" ] || SDFM_GIT_REMOTE='origin'
[ -n "$SDFM_GIT_BRANCH" ] || SDFM_GIT_BRANCH='master'

[ -n "$SDFM_GIT_COMMAND" ] || \
  SDFM_GIT_COMMAND='git --git-dir="$SDFM_GIT_DIR" --work-tree="$SDFM_GIT_WORKTREE"'

alias sdfm="$SDFM_GIT_COMMAND"
alias sdfc="$SDFM_GIT_COMMAND commit"
alias sdfs="$SDFM_GIT_COMMAND stat"
alias sdfp="$SDFM_GIT_COMMAND push"
alias sdfpl="$SDFM_GIT_COMMAND pull --autostash"
alias sdfl="$SDFM_GIT_COMMAND log --date=human --abbrev-commit"

sdfi() {
  [ -d "${SDFM_GIT_DIR%/*}" ] || {
    mkdir -pv "${SDFM_GIT_DIR%/*}" || return "$?"
  }

  [ -d "${SDFM_GIT_WORKTREE%/*}" ] || {
    mkdir -pv "${SDFM_GIT_WORKTREE%/*}" || return "$?"
  }

  local non_checkout_message='! echo "No tracked file, use -a or -p flag to checkout file"'

  [ -d "$SDFM_GIT_DIR" ] || {
    sdfm init -b "$SDFM_GIT_BRANCH" || return "$?"
      sdfm config status.showUntrackedFiles no || return "$?"
      sdfm config push.autoSetupRemote true || return "$?"
      sdfm config alias.stat $non_checkout_message || return "$?"
    }

  local config_abbrev="$(sdfm config core.abbrev)"

  while getopts :u:fap:r option; do
    case $option in
      u)
        [ -n "$(sdfm remote show)" ] || {
          sdfm remote add "$SDFM_GIT_REMOTE" "$OPTARG" || return "$?"
          echo "Remote $SDFM_GIT_REMOTE added"
        }
        ;;
      f)
        echo 'Fetching...'
        sdfm fetch --depth=1 --set-upstream \
          "$SDFM_GIT_REMOTE" "$SDFM_GIT_BRANCH" || return "$?"

        sdfm reset -q "$SDFM_GIT_REMOTE"/"$SDFM_GIT_BRANCH" || return "$?"
        sdfm diff --name-status --diff-filter=M HEAD || return "$?"
        ;;
      a)
        if [ -z "$config_abbrev" ]; then
          sdfm config core.abbrev auto || return "$?"
          config_abbrev="$(sdfm config core.abbrev)"

          sdfm config alias.stat 'status -s' || return "$?"
          sdfm checkout -- . || return "$?"
          echo 'Last commit applied'

        elif [ "$config_abbrev" = auto ]; then
          echo 'Commit already applied'
          return 1

        else
          printf '%s\n' \
            'Already in partial checkout state.' \
            'Use -r to reset state and remove tracked file.'
        fi
        ;;
      p)
        # can checkout multiple files.
        if [ -z "$config_abbrev" ]; then
          sdfm config core.abbrev no
          config_abbrev="$(sdfm config core.abbrev)"
          sdfm config alias.stat 'diff --name-status --diff-filter=M HEAD'
        fi

        if [ "$config_abbrev" = no ]; then
          sdfm checkout -- "$OPTARG" || return "$?"
          echo "Checkout $OPTARG"

        else
          printf '%s\n' \
            'Already in full checkout state.' \
            'Use -r to reset state and remove tracked file.'
          return 1
        fi
        ;;
      r)
        echo 'Reset state and remove all tracked files'
        sdfm read-tree -u -m "$(sdfm hash-object -t tree /dev/null)" || return "$1"
        sdfm reset -q

        sdfm config unset core.abbrev
        config_abbrev="$(sdfm config core.abbrev)"
        sdfm config alias.stat $non_checkout_message
        ;;
      :)
        echo "Option -$OPTARG requires an argument"
        return 1
        ;;
      ?)
        echo 'Usage: sdfi [-u <url>] [-f] [-a] [-p <path>] [-r]'
        return 1
        ;;
    esac
  done
}

sdfa() {
  sdfm add "$@"
}

sdfd() {
  sdfm diff "$@"
}

# vim:ft=sh