pakt-dry-old

#!/bin/sh
# Pakt (PAcman KaTegories) - Pacman wrapper for categorizing packages
# TODO VERSION GPL-2.0
# https://github.com/mrminede/pakt

# Save all the packages for a group of categories temporarily in /tmp.
# This is needed, because we allow different categories for different packages.
# We could do this with an array of some sort, but would lose POSIX-compliancy.
pkg_tempsave() {
	for c in $(echo "$CAT" | tr ' ' '\n'); do
		for p in $PAC; do
			echo "$p" >> /tmp/pakt/"$c"
		done
	done

	PAC=""
	CAT="$DEFAULT_CATEGORIES"
}

if [ "$#" -eq 0 ] || [ "$1" = "--pakt-help" ]; then
	echo "pakt-dry is for all actions, that do not involve the package manager (installing/removing packages). \n \
	Currently these are: \n \
	1. print out the content of all provided categoryfiles with pakt-dry print +cat1,cat2 +cat3\n \
	2. add/remove packages from all provided categoryfiles with pakt-dry firefox +cat1,cat2 -cat3,cat4 (this removes firefox from cat3 and cat4 and adds it to cat1 and cat2"

	exit
fi

# Source the config file.
if [ -z "$PAKT_CONFIG_PATH" ]; then
	CONF_PATH="/etc/pakt.conf"
else
	CONF_PATH="$PAKT_CONFIG_PATH"
fi

# Now check if config file is there and load it.
if [ -e "$CONF_PATH" ]; then
	. "$CONF_PATH"
else
	echo "WARNING: Could not load config file! Loading default config at /etc/pakt.conf.default"
	. /etc/pakt.conf.default
fi

# shorten the config variable names
CAT="$DEFAULT_CATEGORIES"
PTH="$PAKT_PATH"

PAC=""
ARG_WAS_CAT=0

# We need this dir in pkg_tempsave().
mkdir -p /tmp/pakt

for A in "$@"; do
	case "$A" in
		-*)
			# This allows the syntax of: -cat1,cat2,test,cli
			A=$(echo "$A" | tr ',' ' -')
			CAT="${CAT} ${A}"
			# ARG_WAS_CAT is used to detect, when a package is declared after a category.
			# When that happens we want to first save the packages before to the categories before and then reset both.
			ARG_WAS_CAT=1
		;;
		"+"*)
			# This allows the syntax of: +cat1,cat2,test,cli
			A=$(echo "$A" | tr ',' ' +')
			CAT="${CAT} ${A}"
			# ARG_WAS_CAT is used to detect, when a package is declared after a category.
			# When that happens we want to first save the packages before to the categories before and then reset both.
			ARG_WAS_CAT=1
		;;
		"print")
			MODE=print
		;;
		*)
			if [ $ARG_WAS_CAT -eq 1 ]; then
				pkg_tempsave
				ARG_WAS_CAT=0
			fi
			PAC="${PAC} ${A}"
		;;
	esac
done

# Save the last packages
pkg_tempsave

# Create path if it doesn't exist
mkdir -p "$PTH"
for f in /tmp/pakt/*; do
	# We don't want f to be /tmp/pakt/filename, but rather only filename.
	f=$(basename "$f")
	# This will make sure, that there are no error messages about a category file not existing.
	# These errors are not fatal, but the user should not see them!
	touch "$PTH/$f"
	for p in $(cat "/tmp/pakt/$f"); do
		case $MODE in
			S) # Add Package
				# Check if package is already in file, then don't add it.
				if [ "$p" != "$(grep "^$p\$" "$PTH/$f")" ]; then
					echo "$p" >> "$PTH/$f"
				fi
				;;
			R) # Remove Package
				sed -n "/^$p\$/"'!'"p" "$PTH/$f" | tee "$PTH/$f" > /dev/null # You can't pipe directly into PTH/f bc the pipe is opened first, therefore the file is beeing cleared, therefore sed opens a empty file.
				;;
		esac
	done
done

# At last we want to clean up, so we don't work on the packages from last time.
rm "/tmp/pakt" -r