scratchpkg/functions/functions

#!/bin/bash

FUNCTIONS=${FUNCTIONS:-'/usr/share/scratchpkg'}

source "$FUNCTIONS/options"
source "$FUNCTIONS/color"
source "$FUNCTIONS/message"

# defaults value
CONF_FILE="/etc/scratchpkg.conf"
BUILD_SCRIPT="spkgbuild"

ROOT_DIR="/"
INDEX_DIR="/var/lib/scratchpkg/index"

PACKAGE_DIR="/var/cache/scratchpkg/packages"
SOURCE_DIR="/var/cache/scratchpkg/sources"
WORK_DIR="/tmp"
LOG_DIR="/var/cache/scratchpkg/log"
HOOK_DIR="/etc/hooks"

OPTIONS=(!libtool emptydirs strip docs purge zipman buildflags makeflags)
PURGE_FILES=(usr/{,share/}info/dir)
DOC_DIRS=(usr/{,local/}{,share/}{doc,gtk-doc} opt/*/{doc,gtk-doc})
MAN_DIRS=({usr{,/local}{,/share},opt/*}/man)
	
if [ -f $CONF_FILE ]; then
	. $CONF_FILE
else
	msgerr "Configuration file not found."
	exit 1
fi
	
# check for extract tool
if [ "$(type -p bsdtar)" ]; then
	EXTPROG=$(type -p bsdtar)
elif [ "$(type -p tar)" ]; then
	EXTPROG=$(type -p tar)
else
	msgerr "libarchive or tar is needed. Aborted!"
	exit 1
fi


# functions load by scratchpkg
pushd() {
    command pushd "$@" >/dev/null
}

popd() {
    command popd >/dev/null
}

rmdir_silent() {
	command rmdir "$@" 2> /dev/null
}

rm_silent() {
	command rm "$@" 2> /dev/null
}

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

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

# function to print all installed packages
allinstalled() {
	
	ls ${INDEX_DIR}/*/.pkginfo | rev | cut -d '/' -f2 | rev 2>/dev/null
	
}

getpkginfo() {
	
	description=$(grep "^# description[[:blank:]]*:" $BUILD_SCRIPT | sed 's/^# description[[:blank:]]*:[[:blank:]]*//')
	backup=$(grep "^# backup[[:blank:]]*:" $BUILD_SCRIPT | sed 's/^# backup[[:blank:]]*:[[:blank:]]*//')
	conflict=$(grep "^# conflict[[:blank:]]*:" $BUILD_SCRIPT | sed 's/^# conflict[[:blank:]]*:[[:blank:]]*//')
	depends=$(grep "^# depends[[:blank:]]*:" $BUILD_SCRIPT | sed 's/^# depends[[:blank:]]*:[[:blank:]]*//')
	makedepends=$(grep "^# makedepends[[:blank:]]*:" $BUILD_SCRIPT | sed 's/^# makedepends[[:blank:]]*:[[:blank:]]*//')
	noextract=$(grep "^# noextract[[:blank:]]*:" $BUILD_SCRIPT | sed 's/^# noextract[[:blank:]]*:[[:blank:]]*//')
	options=$(grep "^# options[[:blank:]]*:" $BUILD_SCRIPT | sed 's/^# options[[:blank:]]*:[[:blank:]]*//')
	
	# tmp
	depends+=(${makedepends[@]})
	
	. $BUILD_SCRIPT
		
}

getinstalledname() {
	
	iname=$(cat $INDEX_DIR/$1/.pkginfo | grep ^name | cut -d " " -f3)
	iversion=$(cat $INDEX_DIR/$1/.pkginfo | grep ^version | cut -d " " -f3)
	irelease=$(cat $INDEX_DIR/$1/.pkginfo | grep ^release | cut -d " " -f3)
	
	echo "$iname-$iversion-$irelease"
	
}

################################################################
#  function to get information from installed package database
#
#   Usage:  installed_pkg_info <arg> <pkg>
#
#   Note: 'arg' could be name, version, release, depends,
#         makedepends and descriptions.
################################################################
installed_pkg_info() {
	
	if [ -f $INDEX_DIR/$2/.pkginfo ]; then
		echo $(cat $INDEX_DIR/$2/.pkginfo | grep ^$1 | cut -d " " -f3-)
	fi
}

getinfopkg() {
	
	cat /tmp/spkg.$2.pkginfo | grep ^$1 | cut -d " " -f3
	
}

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

}

checkdirexist() {
	
	for dir in "$@"; do
		if [ ! -d $dir ]; then
			msgwarn "Directory ${YELLOW}$dir${CRESET} not exist."
			DIR_ERROR=yes
		fi
	done
	
	[ "$DIR_ERROR" ] && exit 1
	
}

checkdirwrite() {
	
	for dir in "$@"; do
		if [ ! -w $dir ]; then
			msgwarn "Directory ${YELLOW}$dir${CRESET} not writable."
			DIR_ERROR=yes
		fi
	done
	
	[ "$DIR_ERROR" ] && exit 1
	
}

checkdirread() {
	
	for dir in "$@"; do
		if [ ! -x $dir ] || [ ! -r $1 ]; then
			msgwarn "Directory ${YELLOW}$dir${CRESET} not readable."
			DIR_ERROR=yes
		fi
	done
	
	[ "$DIR_ERROR" ] && exit 1
	
}