scratchpkg/scratch

#!/bin/sh
#
#  scratchpkg
#
#  Copyright (c) 2018 by Emmett1  (emmett1.2miligrams@gmail.com)
#
#  This program is free software: you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation, either version 3 of the License, or
#  (at your option) any later version.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License
#  along with this program.  If not, see <https://www.gnu.org/licenses/>.
#

RED='\e[0;31m'
GREEN='\e[0;32m'
YELLOW='\e[0;33m'
CYAN='\e[0;36m'
PURPLE='\e[0;35m'
CRESET='\e[0m'

nocolor() {
	RED=
	GREEN=
	YELLOW=
	CYAN=
	PURPLE=
	CRESET=
}

msg() {
	printf "${GREEN}==>${CRESET} $1\n"
}

msgerr() {
	printf "${RED}==> ERROR:${CRESET} $1\n"
}

msginst() {
	printf "[${GREEN}i${CRESET}] $1\n"
}

msgmiss() {
	printf "[${YELLOW}m${CRESET}] $1\n"
}

msgnoinst() {
	printf "[-] $1\n"
}

msgwarn() {
	printf "${YELLOW}==> WARNING:${CRESET} $1\n"
}

needroot() {	
	if [ "$(id -u)" != 0 ]; then
		if [ "$#" -eq 0 ]; then
			needroot "This operation"
		else
			msgerr "$* need root access!"
		fi
		exit 1
	fi	
}

getportpath() {	
	for repo in $PORT_REPO; do
		if [ -f "$repo/$1/$BUILD_SCRIPT" ]; then
			dirname "$repo/$1/$BUILD_SCRIPT"
			return 0
		fi
	done
	return 1	
}

vercomp() {	
	if [ "$1" = "$2" ]; then
		return 0 # same version
	elif [ "$1" = "$(echo "$1\n$2" | sort -V | head -n1)" ]; then
		return 1 # $1 lower than $2
	else
		return 2 # $1 higher than $2
	fi
}

installed_pkg_info() {	
	if isinstalled $2; then
		grep ^$1 $INDEX_DIR/$2/.pkginfo | cut -d " " -f3-
	fi
}

allinstalled() {	
	grep ^name "$INDEX_DIR"/*/.pkginfo | awk '{print $3}'
}

get_depends() {
	ppath=$(getportpath $pkg) || return 0
	grep "^# depends[[:blank:]]*:" $ppath/$BUILD_SCRIPT \
	| sed 's/^# depends[[:blank:]]*:[[:blank:]]*//' \
	| tr ' ' '\n' \
	| awk '!a[$0]++' \
	| sed 's/,//'
}

confirm() {
	printf "$1 (Y/n) "
	read -r response
	case "$response" in
		[Nn][Oo]|[Nn]) echo "$2"; return 2 ;;
		*) : ;;
	esac
	return 0
}

checktool() {	
	if ! type -p $1 &>/dev/null; then
		msgerr "'$1' not exist in your system!"
		exit 1
	fi	
}

needarg() {
	[ "$*" ] || {
		msgerr "This operation required an arguments!"
		exit 1
	}
}

isinstalled() {
	if [ -s "$INDEX_DIR/$1/.pkginfo" ] && [ "$(grep $1 $INDEX_DIR/$1/.pkginfo)" ]; then
		return 0
	else
		return 1
	fi
}

settermtitle() {
	printf "\033]0;$*\a"
}

scratch_integrity() {
	if [ "$1" ]; then
		cd /
			if [ -f $INDEX_DIR/$1/.files ]; then
				cat $INDEX_DIR/$1/.files | while read -r line; do
					if [ ! -e "$line" ]; then
						if [ -L "$line" ]; then
							printf "${YELLOW}broken symlink${CRESET} $1: /$line"
						else
							printf "${RED}file missing${CRESET} $1: /$line"
						fi
					fi
				done
			else
				echo "Package '$1' not installed."
				exit 1
			fi
		cd - >/dev/null
	else
		cd /
			for pkg in $(allinstalled); do
				cat $INDEX_DIR/$pkg/.files | while read -r line; do
					if [ ! -e "$line" ]; then
						if [ -L "$line" ]; then
							printf "${YELLOW}broken symlink${CRESET} $pkg: /$line"
						else
							printf "${RED}file missing${CRESET} $pkg: /$line"
						fi
					fi
				done
			done
		cd - >/dev/null
	fi	
	[ "$(id -u)" != "0" ] && msg "${YELLOW}(check integrity is recommended run as root or using sudo)${CRESET}"
}

scratch_lock() {
	needroot "Locking package"	
	for pkg in "$@"; do
		if ! isinstalled $pkg; then
			msgerr "Package '$pkg' is not installed."
		elif [ -f $INDEX_DIR/$pkg/.lock ]; then
			msgerr "Package '$pkg' already locked."
		else
			touch $INDEX_DIR/$pkg/.lock && msg "Successfully locked package '$pkg'."
		fi
	done	
}

scratch_unlock() {
	needroot "Unlocking package"	
	for pkg in "$@"; do
		if ! isinstalled $pkg; then
			msgerr "Package '$pkg' is not installed."
		elif [ ! -f $INDEX_DIR/$pkg/.lock ]; then
			msgerr "Package '$pkg' is not locked."
		else
			rm -f $INDEX_DIR/$pkg/.lock && msg "Successfully unlocked package '$pkg'."
		fi
	done	
}

scratch_isorphan() {	
	needarg $@	
	for pkg in $(allinstalled); do
		if depend=$(get_depends $pkg); then
			for dep in $depend; do
				if [ $dep = $1 ]; then
					return 1
				fi
			done
		fi
		unset depend dep
	done
	return 0
}

scratch_sync() {	
	checktool httpup	
	needroot "Updating ports"
	
	if [ ! -e "$REPO_FILE" ]; then
		msgerr "Repo file not found! ($REPO_FILE)"
		exit 1
	fi

	grep -Ev '^(#|$)' "$REPO_FILE" | awk '{print $1,$2}' | while read -r repodir repourl; do
		if [ "$repodir" ] && [ "$repourl" ]; then
			httpup sync $repourl $repodir || {
				msgerr "Failed sync from $repourl"
				exit 1
			}
		fi
	done
}

scratch_trigger() {
	needroot "Run trigger"
	if [ -z "$*" ]; then
		for i in trig_{1..12}; do
			eval $i=1
		done
	else
		pre_triggers $@
	fi
	post_triggers
}

post_triggers() {
	if [ "$trig_12" = 1 ]; then
		echo "trigger: Running mkdirs..."
		for mkd in $INDEX_DIR/*/.pkgmkdirs; do
			[ -s $mkd ] || continue
			while read dir mode uid gid junk; do
			# Ignore comments and blank lines
			case "$dir" in
				""|\#*) continue ;;
			esac
			if [ -e "$dir" ]; then
				if [ "$uid" != '-' ]; then
					getent passwd $uid >/dev/null
					if [ "$?" = 0 ]; then
						chown "$uid" "$dir"
					fi
				fi
				if [ "$gid" != '-' ]; then
					getent group $gid >/dev/null
					if [ "$?" = 0 ]; then
						chgrp "$gid" "$dir"
					fi
				fi
				if [ "$mode" != '-' ]; then
					chmod "$mode" "$dir"
				fi
			fi
		done < "$mkd"
	done

	fi
	
	if [ "$trig_11" = 1 ] && [ $(type -p fc-cache) ]; then
		echo "trigger: Updating fontconfig cache..."
		fc-cache -s
	fi
	
	if [ "$trig_10" = 1 ] && [ $(type -p gdk-pixbuf-query-loaders) ]; then
		echo "trigger: Probing GDK-Pixbuf loader modules..."
		gdk-pixbuf-query-loaders --update-cache
	fi
	
	if [ "$trig_9" = 1 ] && [ $(type -p gio-querymodules) ]; then
		echo "trigger: Updating GIO module cache..."
		gio-querymodules /usr/lib/gio/modules
	fi
	
	if [ "$trig_8" = 1 ] && [ $(type -p glib-compile-schemas) ]; then
		echo "trigger: Compiling GSettings XML schema files..."
		glib-compile-schemas /usr/share/glib-2.0/schemas
	fi
	
	if [ "$trig_7" = 1 ] && [ $(type -p gtk-query-immodules-2.0) ]; then
		echo "trigger: Probing GTK2 input method modules..."
		gtk-query-immodules-2.0 --update-cache
	fi
	
	if [ "$trig_6" = 1 ] && [ $(type -p gtk-query-immodules-3.0) ]; then
		echo "trigger: Probing GTK3 input method modules..."
		gtk-query-immodules-3.0 --update-cache
	fi
	
	if [ "$trig_5" = 1 ] && [ $(type -p gtk-update-icon-cache) ]; then
		echo "trigger: Updating icon theme caches..."
		for dir in /usr/share/icons/* ; do
			if [ -e $dir/index.theme ]; then
				gtk-update-icon-cache -q $dir &>/dev/null
			else
				rm -f $dir/icon-theme.cache
				rmdir --ignore-fail-on-non-empty $dir
			fi
		done
	fi
	
	if [ "$trig_4" = 1 ] && [ $(type -p udevadm) ]; then
		echo "trigger: Updating hardware database..."
		udevadm hwdb --update
	fi
	
	if [ "$trig_3" = 1 ] && [ $(type -p mkfontdir) ] && [ $(type -p mkfontscale) ]; then
		echo "trigger: Updating X fontdir indices..."
		for dir in $(find /usr/share/fonts -maxdepth 1 -type d \( ! -path /usr/share/fonts -a ! -name X11 \)) /usr/share/fonts/X11/*; do
			rm -f $dir/fonts.{scale,dir} $dir/.uuid
			rmdir --ignore-fail-on-non-empty $dir
			[ -d "$dir" ] || continue
			mkfontdir $dir
			mkfontscale $dir
		done
	fi
	
	if [ "$trig_2" = 1 ] && [ $(type -p update-desktop-database) ]; then
		echo "trigger: Updating desktop file MIME type cache..."
		update-desktop-database --quiet
	fi
	
	if [ "$trig_1" = 1 ] && [ $(type -p update-mime-database) ]; then
		echo "trigger: Updating the MIME type database..."
		update-mime-database /usr/share/mime
	fi
}

pre_triggers() {	
	# mime db
	if [ "$trig_1" != "1" ]; then
		for pkg in $@; do
			if [ -s "$INDEX_DIR/$pkg/.files" ] && [ "$(grep ^usr/share/mime/$ $INDEX_DIR/$pkg/.files)" ]; then
				trig_1=1
				break
			fi
		done
	fi
	
	# desktop db
	if [ "$trig_2" != "1" ]; then
		for pkg in $@; do
			if [ -s "$INDEX_DIR/$pkg/.files" ] && [ "$(grep ^usr/share/applications/$ $INDEX_DIR/$pkg/.files)" ]; then
				trig_2=1
				break
			fi
		done
	fi
	
	# mkfontdir
	if [ "$trig_3" != "1" ]; then
		for pkg in $@; do
			if [ -s "$INDEX_DIR/$pkg/.files" ] && [ "$(grep ^usr/share/fonts/[^/]*/$ $INDEX_DIR/$pkg/.files)" ]; then
				trig_3=1
				break
			fi
		done
	fi
	
	# hwdb
	if [ "$trig_4" != "1" ]; then
		for pkg in $@; do
			if [ -s "$INDEX_DIR/$pkg/.files" ] && [ "$(grep ^etc/udev/hwdb.d/$ $INDEX_DIR/$pkg/.files)" ]; then
				trig_4=1
				break
			fi
		done
	fi
	
	# icon caches
	if [ "$trig_5" != "1" ]; then
		for pkg in $@; do
			if [ -s "$INDEX_DIR/$pkg/.files" ] && [ "$(grep ^usr/share/icons/[^/]*/$ $INDEX_DIR/$pkg/.files)" ]; then
				trig_5=1
				break
			fi
		done
	fi
	
	# gtk3 immodules
	if [ "$trig_6" != "1" ]; then
		for pkg in $@; do
			if [ -s "$INDEX_DIR/$pkg/.files" ] && [ "$(grep ^usr/lib/gtk-3.0/3.0.0/immodules/.*.so $INDEX_DIR/$pkg/.files)" ]; then
				trig_6=1
				break
			fi
		done
	fi
	
	# gtk2 immodules
	if [ "$trig_7" != "1" ]; then
		for pkg in $@; do
			if [ -s "$INDEX_DIR/$pkg/.files" ] && [ "$(grep ^usr/lib/gtk-2.0/2.10.0/immodules/.*.so $INDEX_DIR/$pkg/.files)" ]; then
				trig_7=1
				break
			fi
		done
	fi
	
	# gsettings schema
	if [ "$trig_8" != "1" ]; then
		for pkg in $@; do
			if [ -s "$INDEX_DIR/$pkg/.files" ] && [ "$(grep ^usr/share/glib-2.0/schemas/$ $INDEX_DIR/$pkg/.files)" ]; then
				trig_8=1
				break
			fi
		done
	fi
	
	# gio modules
	if [ "$trig_9" != "1" ]; then
		for pkg in $@; do
			if [ -s "$INDEX_DIR/$pkg/.files" ] && [ "$(grep ^usr/lib/gio/modules/.*.so $INDEX_DIR/$pkg/.files)" ]; then
				trig_9=1
				break
			fi
		done
	fi
	
	# gdk-pixbuf
	if [ "$trig_10" != "1" ]; then
		for pkg in $@; do
			if [ -s "$INDEX_DIR/$pkg/.files" ] && [ "$(grep ^usr/lib/gdk-pixbuf-2.0/2.10.0/loaders/.*.so $INDEX_DIR/$pkg/.files)" ]; then
				trig_10=1
				break
			fi
		done
	fi
	
	# font caches
	if [ "$trig_11" != "1" ]; then
		for pkg in $@; do
			if [ -s "$INDEX_DIR/$pkg/.files" ] && [ "$(grep ^usr/share/fonts/[^/]*/$ $INDEX_DIR/$pkg/.files)" ]; then
				trig_11=1
				break
			fi
		done
	fi
	
	# makedirs
	if [ "$trig_12" != "1" ]; then
		for pkg in $@; do
			if [ -s "$INDEX_DIR/$pkg/.pkgmkdirs" ]; then
				trig_12=1
				break
			fi
		done
	fi
}

scratch_build() {
	while [ "$1" ]; do
		case $1 in
			-i|-u|-r|-g|-p) ;;
			-*) OPTS="$OPTS $1";;
			 *) PKGNAME="$PKGNAME $1";;
		esac
		shift
	done
	[ "$PKGNAME" ] || {
		echo "Please specify package(s) to build."
		return 1
	}
	for pkg in $PKGNAME; do
		cd $(getportpath $pkg) || {
			echo "Package '$P' not found."
			return 1
		}
		settermtitle "Building $P..."
		pkgbuild $OPTS || {
			settermtitle "Building $P failed"
			return 1
		}
		settermtitle "Building $P done"
		cd - >/dev/null
	done
}

scratch_install() {
	needroot "Installing package"
	while [ "$1" ]; do
		case $1 in
			-i|-u) ;;
			-r) REINSTALL=1;;
			-y|--yes) NOCONFIRM=1;;
			-n|--no-dep) NO_DEP=1;;
			--exclude=*) EXOPT=$1;;
			-*) OPTS="$OPTS $1";;
			*) PKGNAME="$PKGNAME $1";;
		esac
		shift
	done	
	[ "$PKGNAME" ] || {
		echo "Please specify package(s) to install."
		return 1
	}
	# use custom root location
	if [ "$ROOT_DIR" ]; then
		OPTS="$OPTS --root=$ROOT_DIR"
	fi
	# if reinstall, dont calculate dep, just reinstall it then exit
	if [ "$REINSTALL" = 1 ]; then
		error=0
		for ii in $PKGNAME; do
			if [ ! $(getportpath $ii) ]; then
				echo "Package '$ii' not found."
			elif ! isinstalled $ii; then
				echo "Package '$ii' not installed."
			else
				cd $(getportpath $ii)
					settermtitle "Reinstalling $ii..."
					pkgbuild $OPTS -r || {
						error=1
						break
					}
					done_pkg="$done_pkg $ii"
				cd - >/dev/null
			fi
		done
		settermtitle "Triggering install hook"
		[ "$done_pkg" ] && scratch_trigger $done_pkg
		settermtitle "Reinstalling done"
		return "$error"
	fi
	if [ "$NO_DEP" = 1 ]; then
		error=0
		for ii in $PKGNAME; do
			if [ ! $(getportpath $ii) ]; then
				echo "Package '$ii' not found."
			elif isinstalled $ii; then
				echo "Package '$ii' already installed."
				continue
			else
				cd $(getportpath $ii)
					settermtitle "Installing $ii..."
					pkgbuild -i $OPTS || {
						error=1
						break
					}
					done_pkg="$done_pkg $ii"
				cd - >/dev/null
			fi
		done
		settermtitle "Triggering install hook"
		[ "$done_pkg" ] && scratch_trigger $done_pkg
		settermtitle "Installing done"
		return "$error"
	fi
	for i in $PKGNAME; do
		if [ ! $(getportpath $i) ]; then
			echo "Package '$i' not found."
		elif isinstalled $i; then
			echo "Package '$i' already installed."
		else
			IPKG="$IPKG $i"
		fi
	done
	[ "$IPKG" ] || return 0
	echo "Resolving dependencies..."
	INST="$(scratch_deplist -q $IPKG $EXOPT)"
	if [ "$INST" ]; then
		echo
		pkgcount=0
		for pkg in $INST; do
			pkgcount=$(( pkgcount + 1 ))
			printf "[${GREEN}i${CRESET}] $pkg  "
		done
		echo; echo
		echo "( $pkgcount install )"
		echo
		if [ ! "$NOCONFIRM" ]; then
			confirm "Continue install package(s)?" "Package installation cancelled." || exit $?
			echo
		fi
		error=0
		count=0
		total=$(echo $INST | wc -w)
		for int in $INST; do
			count=$(( count + 1 ))
			if portpathh=$(getportpath $int); then
				cd $portpathh
					settermtitle "[ $count/$total ] installing $int..."
					pkgbuild -i $OPTS || {
						error=1
						count=$(( count - 1 ))
						break
					}
					done_pkg="$done_pkg $int"
				cd - >/dev/null
			else
				msgwarn "Skipping missing package: $int"
			fi
			unset portpathh
		done
		settermtitle "Triggering install hook"
		[ "$done_pkg" ] && scratch_trigger $done_pkg
		settermtitle "$count/$total package(s) installed"
		return "$error"
	fi
}

scratch_remove() {
	needroot "Removing package"
	while [ "$1" ]; do
		case $1 in
			-y|--yes) NOCONFIRM=1;;
			-*) OPTS="$OPTS $1";;
			*) PKGNAME="$PKGNAME $1";;
		esac
		shift
	done
	[ "$PKGNAME" ] || {
		echo "Please specify package(s) to remove."
		return 1
	}
	# use custom root location
	if [ "$ROOT_DIR" ]; then
		OPTS="$OPTS --root=$ROOT_DIR"
	fi	
	for i in $PKGNAME; do
		if ! isinstalled $i; then
			echo "Package '$i' not installed."
		else
			IPKG="$IPKG $i"
		fi
	done
	[ "$IPKG" ] || return 0
	echo "Removing packages..."
	echo
	pkgcount=0
	count=0
	for pkg in $IPKG; do
		pkgcount=$(( pkgcount + 1 ))
		printf "[${RED}x${CRESET}] $pkg  "
	done
	echo; echo
	echo "( $pkgcount remove )"
	echo
	[ "$NOCONFIRM" ] || {
		confirm "Continue remove package(s)?" "Package removing cancelled." || exit $?
		echo
	}
	for pkg in $IPKG; do
		count=$(( count + 1 ))
		pre_triggers $pkg
		settermtitle "[ $count/$pkgcount ] Removing $pkg..."
		pkgdel $pkg $OPTS || {
			error=1
			break
		}
	done
	settermtitle "Triggering remove hook"
	post_triggers
	settermtitle "$pkgcount package(s) removed"
}

outdatepkg() {
	for pkg in $(allinstalled); do
		if [ ! -e "$INDEX_DIR/$pkg/.lock" ] && getportpath $pkg >/dev/null; then
			. $(getportpath $pkg)/$BUILD_SCRIPT
			if [ -z "$name" ] || [ -z "$version" ]; then
				continue
			fi
			iversion=$(installed_pkg_info version $pkg)
			irelease=$(installed_pkg_info release $pkg)
			if [ "$release" != "$irelease" ] || [ "$version" != "$iversion" ]; then
				echo $name
			fi
			unset iversion irelease version release
		fi
	done
}

scratch_sysup() {
	needroot "Upgrading package"	
	while [ "$1" ]; do
		case $1 in
			-i|-u|-r) ;;
			-y|--yes) NOCONFIRM=1;;
			-d|--no-dep) NODEP=1;;
			--exclude=*) EXOPT=$1;;
			-*) OPTS="$OPTS $1";;
		esac
		shift
	done	
	# use custom root location
	[ "$ROOT_DIR" ] && OPTS="$OPTS --root=$ROOT_DIR"	
	echo "Checking for outdated packages..."
	PKGOUTDATE=$(outdatepkg)	
	[ "$PKGOUTDATE" ] || {
		echo "All packages are up to date."
		return 0
	}	
	UPGPKG=0
	NEWPKG=0	
	if [ "$NODEP" != 1 ]; then
		echo "Resolving dependencies..."
		DEP=$(scratch_deplist $PKGOUTDATE $EXOPT | awk '{print $2}')
		echo
		for d in $DEP; do
			if [ "$(echo $PKGOUTDATE | tr ' ' '\n' | grep -x $d)" = "$d" ]; then
				printf "[${GREEN}u${CRESET}] $d  "
				WILLINSTALL="$WILLINSTALL $d"
				UPGPKG=$(( UPGPKG + 1 ))
			elif ! isinstalled $d && [ $(getportpath "$d") ]; then
				prinf "[${CYAN}n${CRESET}] $d  "
				WILLINSTALL="$WILLINSTALL $d"
				NEWPKG=$(( NEWPKG + 1 ))
			fi
		done
	else
		echo
		for dd in $PKGOUTDATE; do
			printf "[${GREEN}u${CRESET}] $dd  "
			WILLINSTALL="$WILLINSTALL $dd"
			UPGPKG=$(( UPGPKG + 1 ))
		done
	fi
	echo; echo
	echo "( $UPGPKG upgrade, $NEWPKG new install )"
	echo
	[ "$NOCONFIRM" ] || {
		confirm "Continue upgrade/install these package(s)?" "Package upgrade cancelled." || exit $?
		echo
	}
	error=0
	count=0
	total=$(echo $WILLINSTALL | wc -w)
	for inst in $WILLINSTALL; do # install all required dependencies and target packages itself
		count=$(( count + 1 ))
		cd $(getportpath $inst)
		if ! isinstalled $inst; then
			settermtitle "[ $count/$total ] Installing $inst..."
			pkgbuild -i $OPTS || {
				error=1
				count=$(( count - 1 ))
				break
			}
		else
			settermtitle "[ $count/$total ] Upgrading $inst..."
			pkgbuild -u $OPTS || {
				error=1
				count=$(( count - 1 ))
				break
			}
		fi
		cd - >/dev/null
		done_pkg="$done_pkg $inst"
	done
	settermtitle "Triggering install hook"
	[ "$done_pkg" ] && scratch_trigger $done_pkg
	settermtitle "$count/$total package(s) upgraded"
	return "$error"
}

scratch_upgrade() {
	needroot "Upgrading package"	
	while [ "$1" ]; do
		case $1 in
			-y|--yes) NOCONFIRM=1;;
			-d|--no-dep) NO_DEP=1;;
			--exclude=*) EXOPT=$1;;
			-*) OPTS="$OPTS $1";;
			*) PKGNAME="$PKGNAME $1";;
		esac
		shift
	done	
	[ "$PKGNAME" ] || {
		echo "Please specify package(s) to upgrade."
		return 1
	}	
	# use custom root location
	[ "$ROOT_DIR" ] && OPTS="$OPTS --root=$ROOT_DIR"
	for pkg in $PKGNAME; do
		if ! isinstalled $pkg; then
			msgerr "Package '$pkg' not installed."
			continue
		elif [ ! $(getportpath $pkg) ]; then
			msgerr "Package '$pkg' not exist."
			continue
		else
			. $(getportpath $pkg)/$BUILD_SCRIPT
			if [ "$(installed_pkg_info version $pkg)-$(installed_pkg_info release $pkg)" = "$version-$release" ]; then
				msg "Package '$pkg' is up to date."
				continue
			fi
		fi
		upkg="$upkg $pkg"
	done
	[ "$upkg" ] || return 0
	[ "$NO_DEP" ] || {
		echo "Resolving dependencies..."
		DEP=$(scratch_deplist $upkg} $EXOPT | awk '{print $2}')
		for dep in $DEP; do
			if ! isinstalled $dep; then
				[ $(getportpath $dep) ] && newpkg="$newpkg $dep"
			fi
		done
	}
	echo
	tnew=0
	tup=0
	for i in $newpkg; do
		tnew=$(( tnew + 1 ))
		printf "[${CYAN}n${CRESET}] $i  "
	done
	for i in $upkg; do
		tup=$(( tup + 1 ))
		printf "[${GREEN}u${CRESET}] $i  "
	done
	echo; echo
	echo "( $tup upgrade, $tnew new install )"
	echo
	[ "$NOCONFIRM" ] || {
		confirm "Continue upgrade/install these package(s)?" "Package upgrade cancelled." || exit $?
		echo
	}
	total=$(( tup + tnew ))
	count=0
	error=0
	if [ "$newpkg" ]; then
		for pkg in $newpkg; do	
			count=$(( count + 1 ))		
			cd $(getportpath $pkg)
				settermtitle "[ $count/$total ] Installing $pkg..."
				pkgbuild -i $OPTS || {
					error=1
					count=$(( count - 1 ))
					break
				}
				done_pkg="$done_pkg $pkg"
			cd - >/dev/null
		done
	fi
	for pkg in $upkg; do # upgrade all target packages
		count=$(( count + 1 ))
		cd $(getportpath $pkg)
			settermtitle "[ $count/$total ] Upgrading $pkg..."
			pkgbuild -u $OPTS || {
				error=1
				count=$(( count - 1 ))
				break
			}
			done_pkg="$done_pkg $pkg"
		cd - >/dev/null
	done
	settermtitle "triggering upgrade hook"
	[ "$done_pkg" ] && scratch_trigger $done_pkg
	settermtitle "$count/$total package(s) upgraded"
	return "$error"
}

scratch_outdate() {
	for pkg in $(allinstalled); do
		if [ $(getportpath $pkg) ]; then
			. $(getportpath $pkg)/$BUILD_SCRIPT
			if [ -z "$name" ] || [ -z "$version" ]; then
				continue
			fi
			iversion=$(installed_pkg_info version $pkg)
			irelease=$(installed_pkg_info release $pkg)
			[ -f "$INDEX_DIR/$pkg/.lock" ] && ITSLOCK="[locked]"
			outdatemsg="$name ${RED}$iversion-$irelease${CRESET} => ${GREEN}$version-$release${CRESET} ${CYAN}$ITSLOCK${CRESET}"
			newerinstmsg="$name ${RED}$iversion-$irelease${CRESET} => ${GREEN}$version-$release${CRESET} ${YELLOW}[newer installed]${CRESET} ${CYAN}$ITSLOCK${CRESET}"
			if [ "$version" !=  "$iversion" ]; then
				vercomp $version $iversion
				if [ $? = 2 ]; then
					echo "$outdatemsg"
					OUTDATE=yes
				elif [ $? = 1 ]; then
					echo "$newerinstmsg"
					OUTDATE=yes
				fi
			elif [ "$release" !=  "$irelease" ]; then
				vercomp $release $irelease
				if [ $? = 2 ]; then
					echo "$outdatemsg"
					OUTDATE=yes
				elif [ $? = 1 ]; then
					echo "$newerinstmsg"
					OUTDATE=yes
				fi
			fi
			unset ITSLOCK name version
		fi
	done
	
	[ ! "$OUTDATE" ] && msg "All packages are up to date."
}

scratch_cache() {
	needroot "Clear old caches"
	
	allcachepkg=/tmp/.allcachepkg.$$
	allcachesrc=/tmp/.allcachesrc.$$
	keepcachepkg=/tmp/.keepcachepkg.$$
	keepcachesrc=/tmp/.keepcachesrc.$$
	diffcachepkg=/tmp/.diffcachepkg.$$
	diffcachesrc=/tmp/.diffcachesrc.$$
	
	[ -f /etc/scratchpkg.conf ] && . /etc/scratchpkg.conf
	
	touch \
		$allcachepkg \
		$allcachesrc \
		$keepcachepkg \
		$keepcachesrc \
		$diffcachepkg \
		$diffcachesrc
	
	if [ "$(find $PACKAGE_DIR -mindepth 1 -print -quit 2>/dev/null)" ]; then
		for list in "$PACKAGE_DIR"/*; do
			basename $list >> "$allcachepkg"
		done
	fi
	
	if [ "$(find $SOURCE_DIR -mindepth 1 -print -quit 2>/dev/null)" ]; then
		for list in "$SOURCE_DIR"/*; do
			basename $list >> "$allcachesrc"
		done
	fi
	
	for repo in $PORT_REPO; do
		if [ "$(find $repo/*/ -mindepth 1 -print -quit 2>/dev/null)" ]; then # check directory if its not empty
			for port in $repo/*/$BUILD_SCRIPT; do
				. $port
				echo "$name-$version-$release.spkg.tar.$COMPRESSION_MODE" >> "$keepcachepkg"
				if [ "$source" ]; then
					for src in $source; do
						if echo $src | grep -Eq "(ftp|http|https)://"; then
							if echo $src | grep -Eq "::(ftp|http|https)://"; then
								sourcename="$(echo $src | awk -F '::' '{print $1}')"
							else
								sourcename="$(echo $src | rev | cut -d / -f 1 | rev)"
							fi
							echo $sourcename >> "$keepcachesrc"
						fi
					done
				fi
			done
		fi
	done
	grep -Fxv -f "$keepcachepkg" "$allcachepkg" > "$diffcachepkg"
	grep -Fxv -f "$keepcachesrc" "$allcachesrc" > "$diffcachesrc"
	
	cat $diffcachepkg
	cat $diffcachesrc
	
	if [ -s "$diffcachepkg" ]; then
		cd "$PACKAGE_DIR"
		sizepkg=$(du -ch $(cat $diffcachepkg) | grep total | awk '{print $1}')
		cd - >/dev/null
	else
		sizepkg=0M
	fi
	
	if [ -s "$diffcachesrc" ]; then
		cd "$SOURCE_DIR"
		sizesrc=$(du -ch $(cat $diffcachesrc) | grep total | awk '{print $1}')
		cd - >/dev/null
	else
		sizesrc=0M
	fi
	
	echo "Total package cache size: $sizepkg"
	echo "Total source cache size : $sizesrc"
	
	if [ -s "$diffcachepkg" ] || [ -s "$diffcachesrc" ]; then
		echo
		confirm "Clear old caches?" "Old caches is kept."
		[ $? = 0 ] && {
			for i in $(cat $diffcachepkg); do
				[ -e "$PACKAGE_DIR/$i" ] && rm -v "$PACKAGE_DIR/$i"
			done
			for i in $(cat $diffcachesrc); do
				[ -e "$SOURCE_DIR/$i" ] && rm -v "$SOURCE_DIR/$i"
			done
		}
	fi
	
	rm -f \
		"$allcachepkg" \
		"$allcachesrc" \
		"$keepcachepkg" \
		"$keepcachesrc" \
		"$diffcachepkg" \
		"$diffcachesrc"
}

scratch_deplist() {
	OLDIFS=$IFS
	IFS=,
	while [ "$1" ]; do
		case $1 in
			-q) quick=1;;
			--exclude=*) for i in ${1#*=}; do exclude="$exclude $i"; done;;
			-*) ;;
			*) PKG="$PKG $1";;
		esac
		shift
	done
	IFS=$OLDIFS
	[ "$PKG" ] || {
		echo "Please specify package(s) to list dependencies."
		return 1
	}
	for p in $PKG; do
		if [ $(getportpath $p) ]; then
			PPKG="$PPKG $p"
		else
			[ "$quick" = 1 ] || msgerr "Package '$p' not exist."
		fi
	done
	
	for p in $PPKG; do
		deplist $p
	done
	
	[ "$DEP" ] || return 0
	
	if [ "$quick" = 1 ]; then
		echo $DEP | tr ' ' '\n'
	else
		for p in $DEP; do
			if isinstalled $p; then
				echo "[*] $p"
			else
				echo "[-] $p"
			fi
		done
		if [ "$MISSINGDEP" ]; then
			for m in $MISSINGDEP; do
				echo "Missing deps: $m" | sed 's/(/ (/'
			done
		fi
	fi
}

deplist() {
	# skip excluded dependencies
	if [ "$(echo $exclude | tr " " "\n" | grep -x $1)" ]; then
		return 0
	fi
	
	# check currently process package for loop
	if [ "$CHECK" ]; then
		if [ "$(echo $CHECK | tr " " "\n" | grep -x $1)" = "$1" ]; then
			return 0
		fi
	fi
	
	# add package to currently process
	CHECK="$CHECK $1"
	
	# check dependencies
	for i in $(get_depends $1); do
		if [ "$quick" = 1 ] && isinstalled $i; then
			continue
		else
			if [ "$(echo $DEP | tr " " "\n" | grep -x $i)" = "" ]; then
				if ! getportpath $i >/dev/null; then
					MISSINGDEP="$MISSINGDEP $i($1)"
				else
					deplist $i
				fi
			fi
		fi
	done
	
	# add dependency to list checked dep
	if [ "$(echo $DEP | tr " " "\n" | grep -x $1)" = "" ]; then
		if [ "$quick" != 1 ]; then
			DEP="$DEP $1"
		else
			isinstalled $1 || DEP="$DEP $1"
		fi
	fi
	
	# delete item from loop process
	CHECK=$(echo $CHECK | sed "s/$1//")
}

usage_extra() {
	cat << EOF
Usage:
    $(basename $0) <operation> [ <port/pattern/file> ]
    
Operation:
    depends   <port>       show depends of a package
    search    <pattern>    search packages in port's repos
    lock      <port>       lock packages from upgrade
    unlock    <port>       unlock packages from upgrade
    cat       <port>       view a package build scripts
    dependent <port>       show package's dependent
    own       <file>       show package's owner of file
    files     <port>       show list files of installed package
    path      <port>       show package's buildscripts path
    readme    <port>       print readme file if exist
    info      <port>       print ports info
    sync                   update port's repo
    dup                    print duplicate ports in repo
    listinst               list installed package in system
    listorphan             list orphan package
    integrity              check integrity of package's files
    outdate                check for outdated packages
    cache                  print leftover cache
    missingdep             check for mising dependency of installed package
    foreignpkg             print package installed without port in repo
    listlocked             print locked packages
    
EOF
}

usage_build() {
	cat << EOF
Usage:
    $(basename $0) build [ <pkgname> <options> ]
    
Options:
    -f, --force-rebuild    force rebuild
    -m, --skip-mdsum       skip md5sum check for sources
    -x, --extract          extract only
    -w, --keep-work        keep woring directory
    -o, --download         download source files only
    -l, --log              log build process
    --redownload           re-download source files
    --srcdir=<path>        override default SOURCE_DIR
    --pkgdir=<path>        override default PACKAGE_DIR
    --logdir=<path>        override default LOG_DIR
    --workdir=<path>       override default WORK_DIR
    
EOF
}

usage_upgrade() {
	cat << EOF
Usage:
    $(basename $0) upgrade [ <pkgname> <options> ]
    
Options:
    -d, --no-dep           skip installing dependencies (new dependencies)
    -c, --ignore-conflict  skip file conflict check
    -v, --verbose          print install process
    -y, --yes              dont ask confirmation
    -l, --log              log build process
    --exclude=<pkg1,pkgN>  exclude dependencies, comma separated
    --no-backup            skip backup configuration file
    --no-preupgrade        skip pre-upgrade script
    --no-postupgrade       skip post-upgrade script
    --srcdir=<path>        override default SOURCE_DIR
    --pkgdir=<path>        override default PACKAGE_DIR
    --logdir=<path>        override default LOG_DIR
    --workdir=<path>       override default WORK_DIR
    
EOF
}

usage_sysup() {
	cat << EOF
Usage:
    $(basename $0) sysup <options>
    
Options:
    -d, --no-dep           skip installing dependencies (new dependencies)
    -c, --ignore-conflict  skip file conflict check
    -v, --verbose          print install process
    -s, --sync             sync ports before upgrades
    -y, --yes              dont ask confirmation
    -l, --log              log build process
    --exclude=<pkg1,pkgN>  exclude dependencies, comma separated
    --no-backup            skip backup configuration file
    --no-preupgrade        skip pre-upgrade script
    --no-postupgrade       skip post-upgrade script
    --srcdir=<path>        override default SOURCE_DIR
    --pkgdir=<path>        override default PACKAGE_DIR
    --logdir=<path>        override default LOG_DIR
    --workdir=<path>       override default WORK_DIR
    
EOF
}

usage_remove() {
	cat << EOF
Usage:
    $(basename $0) remove [ <pkgname> <options> ]
    
Options:
    -v, --verbose          print removed files
    -y, --yes              dont ask confirmation
    --no-preremove         skip pre-remove script
    --no-postremove        skip post-remove script
    
EOF
}

usage_install() {
	cat << EOF
Usage:
    $(basename $0) install [ <pkgname> <options> ]
    
Options:
    -d, --no-dep           skip installing dependencies
    -c, --ignore-conflict  skip file conflict check
    -r, --reinstall        reinstall installed package
    -v, --verbose          print install files
    -l, --log              log build process
    -y, --yes              dont ask confirmation
    --exclude=<pkg1,pkgN>  exclude dependencies, comma separated
    --no-backup            skip backup configuration file (use with -r/--reinstall)
    --no-preinstall        skip pre-install script
    --no-postinstall       skip post-install script
    --srcdir=<path>        override default SOURCE_DIR
    --pkgdir=<path>        override default PACKAGE_DIR
    --logdir=<path>        override default LOG_DIR
    --workdir=<path>       override default WORK_DIR
    
EOF
}

usage_deplist() {
	cat << EOF
Usage:
    $(basename $0) deplist [ <pkgname> <options> ]
    
Options:
    -q, --quick            print only not-installed pkg in quick format
    --exclude=<pkg1,pkgN>  exclude dependencies, comma separated
	
EOF
}


usage_help() {
	cat << EOF
Usage:
    $(basename $0) help <operation>
    
Operations:
    build           build package
    install         install packages
    upgrade         upgrade packages
    sysup           full system upgrades
    remove          remove packages
    deplist         list all dependencies
    extra           various extra options
    
Global options:
    --repo=<path>   add custom local repo path
    --root=<path>   use custom root path
    --nocolor       disable colour output
    
EOF
}

scratch_help() {
	if [ -z "$1" ]; then
		usage_help
		return 0
	else
		if [ "$(type -t usage_$1)" ]; then
			usage_$1
		else
			usage_help
		fi
	fi
	return 0
}

print_runhelp_msg() {
	echo "Run '$(basename $0) help' to see available options."
	exit 2
}

mode=$1
shift

if [ -z "$mode" ]; then
	print_runhelp_msg
fi

for opt in $@; do
	case $opt in
		--nocolor) nocolor;;
		 --repo=*) PORT_REPO="$PORT_REPO ${opt#*=}";;
		 --root=*) ROOT_DIR="${opt#*=}";;
		       -*) char=${#opt}; count=1
		           while [ "$count" != "$char" ]; do
				      count=$((count+1))
		              MAINOPTS="$MAINOPTS -$(echo $opt | cut -c $count)"
				   done;;
		        *) MAINOPTS="$MAINOPTS $opt";;
	esac
	shift
done

BUILD_SCRIPT="spkgbuild"
INDEX_DIR="$ROOT_DIR/var/lib/scratchpkg/index"
REPO_FILE="/etc/scratchpkg.repo"

# default value from pkgbuild
SOURCE_DIR="/var/cache/scratchpkg/sources"
PACKAGE_DIR="/var/cache/scratchpkg/packages"
COMPRESSION_MODE="xz"

if [ -f "$REPO_FILE" ]; then
	for repodir in $(grep -Ev '^(#|$)' "$REPO_FILE" | awk '{print $1}'); do
		PORT_REPO="$PORT_REPO $repodir"
	done
fi

if [ "$(type -t scratch_$mode)" = "function" ]; then
	scratch_$mode $MAINOPTS
else
	print_runhelp_msg
fi

exit $?