modular.sh

#!/bin/sh
# Unix shell helper functions for a modular bare repo approach

# Copyright 2023 Jonathan Bowman. All documentation and code contained
# in this file may be freely shared in compliance with the
# Apache License, Version 2.0 (http://www.apache.org/licenses/LICENSE-2.0)
# and is provided "AS IS" without warranties or conditions of any kind.
#
# To use this script, first ask yourself if I can be trusted, then read the code
# below and make sure you feel good about it, then consider downloading and
# executing this code that comes with no warranties or claims of suitability:
#
# OUT="$(mktemp)"; wget -q -O - https://raw.githubusercontent.com/bowmanjd/dotfile-scripts/main/modular.sh > $OUT; . $OUT
#
# Now you can use "dtfnew $module $repo_url" to set up a new repo, or
# "dtfrestore $module $repo_url" to download and configure an already populated
# repo to a specific directory. Then use "dtf $module " instead of "git" to
# add, commit, push, pull, etc.

DOTFILES="$HOME/.dotfiles"

dtf () {
  MODULE=$1
  shift
  git --git-dir="$DOTFILES/$MODULE" --work-tree="$HOME" $@
}

dtfclone () {
  mkdir -p $DOTFILES
  DISPOSABLE=$(mktemp -dt dtf-XXXXXX)
  git clone -c status.showUntrackedFiles=no -n --separate-git-dir $DOTFILES/$1 $2 $DISPOSABLE
  rm -rf $DISPOSABLE
}

dtfnew () {
  dtfclone $1 $2

  echo "Please add and commit additional files"
  echo "using 'dtf $1 add' and 'dtf $1 commit', then run"
  echo "dtf $1 push -u origin HEAD"
}

dtfrestore () {
  dtfclone $1 $2
  #dtf $MODULE branch -t $(dtf $MODULE symbolic-ref --short HEAD) origin/HEAD
  dtf $1 checkout || echo -e "Deal with conflicting files, then run (possibly with -f flag if you are OK with overwriting)\ndtf $1 checkout"
}

dtfcheck () {
	for mod in $(find "$DOTFILES" -maxdepth 1 -mindepth 1 -type d); do
		printf "\n$(basename $mod):\n"
		git --git-dir="$mod" remote update >/dev/null
		dtf $(basename "$mod") status | rg --color=never '(Changes|ahead|behind|new file|modified)'
	done
}

dtfquery () {
	for modpath in $(find "$DOTFILES" -maxdepth 1 -mindepth 1 -type d); do
		mod="$(basename $modpath)"
		match="$(dtf $mod ls-tree --name-only HEAD $@)"
    if [ -n "$match" ]; then
			echo "${mod}:"
			echo "$match" | rg '^' -r '  '
		fi
	done
}