Add package functionality to dotfiles manager

dotfiles.sh

@@ -5,21 +5,24 @@ if [ "$(dirname $0)" != "." ]; then
 	exit
 fi
 
+PACKAGE_FILE="./packages"
+
 FILES=$(find . \( -path ./.git -o \
+		  -path ./dotfiles.sh -o \
+		  -path $PACKAGE_FILE -o \
 		  -path ./README.md -o \
-		  -path ./screenshot.png -o \
-		  -path ./dotfiles.sh \) -prune -o -type f -print)
+		  -path ./screenshot.png \) -prune -o -type f -print)
 
 if [ "$1" == "help" ] || [ "$1" == "" ]; then
 	BOLD=$(tput bold)
 	NORMAL=$(tput sgr0)
-	
+
 	echo "${BOLD}NAME${NORMAL}"
 	echo "        dotfiles - file copy script for this repository"
 	echo ""
 	echo "${BOLD}SYNOPSIS${NORMAL}"
        	echo "        ./dotfiles.sh <command> [<args>]"
-	echo ""	
+	echo ""
 	echo "${BOLD}COMMANDS${NORMAL}"
 	echo "        list"
 	echo "                Prints all the dotfiles added to this directory."
@@ -34,6 +37,16 @@ on the system to this directory."
 	echo "        push"
 	echo "                For each file in this directory, copy that file \
 to its location on the system."
+	echo ""
+	echo "        package [list]"
+	echo "                List all the packages installed on the system."
+	echo ""
+	echo "        package store"
+	echo "                Store the list of all the installed packages on the \
+system."
+	echo ""
+	echo "        package install"
+	echo "                Install all the core packages of the list."
 
 elif [ "$1" == "list" ]; then
 	for f in $FILES; do
@@ -43,7 +56,7 @@ elif [ "$1" == "list" ]; then
 elif [ "$1" == "get" ] && [ "$2" != "" ]; then
 	FILE=$(readlink -f $2)
 	FILE_CUT_HOME="$(echo $FILE | sed -nr 's/^\/home\/'$USER'\/(.*)$/\1/p')"
-	
+
 	# /home/<user>/
 	if [ -n "$FILE_CUT_HOME" ]; then
 		mkdir -p $(pwd)/$(dirname $FILE_CUT_HOME)
@@ -78,9 +91,29 @@ elif [ "$1" == "pull" ] || [ "$1" == "push" ]; then
 		fi
 	done
 
+elif [ "$1" == "package" ]; then
+	PACKAGE_LIST=$(comm -23 <(pacman -Qeq | sort) <(pacman -Qgq base base-devel | sort))
+
+	if [  "$2" == "list" ] || [ "$2" == "" ]; then
+		echo "$PACKAGE_LIST"
+	elif [ "$2" == "store" ]; then
+		if [ ! -s $PACKAGE_FILE ]; then
+			touch "$PACKAGE_FILE"
+		else
+			truncate -s 0 "$PACKAGE_FILE"
+		fi
+		echo "$PACKAGE_LIST" > "$PACKAGE_FILE"
+	elif [ "$2" == "install" ]; then
+		# Install core packages
+		sudo pacman -S --needed $(comm -12 <(pacman -Slq | sort) <(sort $PACKAGE_FILE))
+		# For AUR packages, run: <helper> -S - < packages
+	fi
 else
 	echo "./dotfiles.sh: '$1' is not a dotfiles command. \
 See './dotfiles.sh help'."
 
 fi
 
+# @Todo:
+# get function to support symlinks
+# push function to push just one file