prebuilt/common/etc/liberty.bsh

#!/system/xbin/bash
: '
 ============ Copyright (C) 2010 Jared Rummler (JRummy16) ============
 
 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 <http://www.gnu.org/licenses/>.
 
 =====================================================================
'

: ' =========================================================
 function name: fix_permissions
 parameters: void
 returns: void
 description:
    Sets permissions for Android data directories and apks
============================================================= '
function fix_permissions()
{
	START=` busybox date +%s `
	PKGLINE=(` pm list packages -f | busybox cut -d ':' -f2 `);
	MAX=${#PKGLINE[*]}
	INCREMENT=5
	PROGRESS=0
	PROGRESS_BAR=""

	echo
	echo "Fixing permissions..."
	echo

	busybox mount -o remount,rw /system
	
	for pkgline in ${PKGLINE[*]}; do
		
		PKGNAME=` echo $pkgline | busybox cut -d '=' -f2 `
		CODEPATH=` echo $pkgline | busybox cut -d '=' -f1 `
		DATAPATH=/data/data/$PKGNAME
		PKGUID=` busybox grep $CODEPATH /data/system/packages.xml | busybox sed 's%.*serId="\(.*\)".*%\1%' |  busybox cut -d '"' -f1 `
		
		let PROGRESS++
		PERCENT=$(( $PROGRESS * 100 / $MAX ))
		if busybox [ $PERCENT -eq $INCREMENT ]; then
			INCREMENT=$(( $INCREMENT + 5 ))
			PROGRESS_BAR="${PROGRESS_BAR}="
		fi
		
		echo -ne "  \r  ${PROGRESS}/${MAX} ${PERCENT}% [ ${PROGRESS_BAR}> ]"
		
		if busybox [ -e $CODEPATH ]; then

			APPDIR=` busybox dirname $CODEPATH `

			if busybox [ $APPDIR = /system/app ]; then
				busybox chown 0 $CODEPATH
				busybox chown :0 $CODEPATH
				busybox chmod 644 $CODEPATH
			elif busybox [ $APPDIR = /data/app ]; then
				busybox chown 1000 $CODEPATH
				busybox chown :1000 $CODEPATH
				busybox chmod 644 $CODEPATH
			elif busybox [ $APPDIR = /data/app-private ]; then
				busybox chown 1000 $CODEPATH
				busybox chown :$PKGUID $CODEPATH
				busybox chmod 640 $CODEPATH
			fi

			if busybox [ -d $DATAPATH ]; then

				busybox chmod 755 $DATAPATH
				busybox chown $PKGUID $DATAPATH
				busybox chown :$PKGUID $DATAPATH

				DIRS=` busybox find $DATAPATH -mindepth 1 -type d `

				for file in $DIRS; do

					PERM=755
					NEWUID=$PKGUID
					NEWGID=$PKGUID
					FNAME=` busybox basename $file `
					
					case $FNAME in
						lib)
							busybox chmod 755 $file
							NEWUID=1000
							NEWGID=1000
							PERM=755
						;;
						shared_prefs)
							busybox chmod 771 $file
							PERM=660					
						;;
						databases)
							busybox chmod 771 $file
							PERM=660
						;;
						cache)
							busybox chmod 771 $file
							PERM=600
						;;
						*)
							busybox chmod 771 $file
							PERM=771
						;;
					esac
					
					busybox chown $NEWUID $file
					busybox chown :$NEWGID $file

					busybox find $file -type f -maxdepth 1 ! -perm $PERM -exec busybox chmod $PERM {} ';'
					busybox find $file -type f -maxdepth 1 ! -user $NEWUID -exec busybox chown $NEWUID {} ';'
					busybox find $file -type f -maxdepth 1 ! -group $NEWGID -exec busybox chown :$NEWGID {} ';'

				done
			fi
		fi
	done

	busybox mount -o remount,ro /system
	sync
	
	STOP=` busybox date +%s `
	RUNTIME=` runtime $START $STOP `
	echo
	echo
	echo "Fix permissions complete! Runtime: ${RUNTIME}"
	echo
}

: ' =========================================================
 function name: getFastReboot
 parameters: void
 returns: void
 description:
    Hot reboots the device
============================================================= '
function getFastReboot()
{
	busybox killall system_server
}

: ' =========================================================
 function name: getFastReboot
 parameters: void
 returns: rw|ro
 description:
    Gets mount
'
function getMount()
{
	mount | busybox grep /system | busybox awk '{print $4}' | busybox cut -d ',' -f1
}

: ' =========================================================
 function name: installApks
 parameters: $1 - "-r" search all sub directories for apks, or...
                  path to directory
             $2 - path to directory (if recursize)
 returns: void
 description:
    Installs apks to device using package manager
============================================================= '
function installApks()
{
	RECURSIZE=0
	case $1 in
		-r)
			RECURSIZE=1
			shift;
		;;
	esac
	
	APKS_DIR=${1:-/mnt/sdcard/}
	declare -a APKS
	
	if busybox [ -d $APKS_DIR ]; then	
		
		if busybox [ $RECURSIZE -eq 1 ]; then
			APKS=(` busybox find $APKS_DIR -type f -name *.apk -print `);
		else
			APKS=(` ls $APKS_DIR/*.apk `);
		fi
		
		for apk in ${APKS[*]}; do
			pm install -i com.google.android.feedback -r $apk
		done
	fi
}

: ' =========================================================
 function name: isBusyboxInstalled
 parameters: void
 returns: 0: busybox is installed
          1: busybox is not installed
 description:
    Checks if busybox is installed correctly
============================================================= '
function isBusyboxInstalled()
{
	if ! busybox > /dev/nul 2>&1; then
		return 1
	fi
	return 0
}

: ' =========================================================
 function name: isRoot
 parameters: void
 returns: 0: if user is root
          1: if user is not root
 description:
    Checks if user is running as root
============================================================= '
function isRoot()
{
	if busybox [ `whoami` = root ]; then
		return 0
	fi
	return 1
}

: ' =========================================================
 function name: isProcessRunning
 parameters: $1 - process name
 returns: 0: Process is running
          1: Process is not running
 description:
    Checks if SD card is mounted
============================================================= '
function isProcessRunning()
{
	if busybox [ $# -ne 1 ]; then
		return 1
	fi
	
	PROCESS=$1
	
	PROCESSES=(` ps | busybox awk '{print $9}' `);
	for p in ${PROCESSES[*]}; do
		if busybox [ "$p" = "$PROCESS" ]; then
			return 0
		fi
	done
	return 1
}

: ' =========================================================
 function name: isSdPresent
 parameters: void
 returns: 0: SD card is present
          1: SD card is not present
 description:
    Checks if SD card is mounted
============================================================= '
function isSdPresent()
{
	if busybox [ -z "$( busybox mount | busybox grep /sdcard )" ]; then
		return 1
	fi
	return 0
}

: ' =========================================================
 function name: runtime
 parameters: $1 - Start time of task
             $2 - End time of task
 returns: task runtime
 description:
    Prints runtime of a task
============================================================= '
function runtime()
{
	START=$1
	STOP=$2
	
	RUNTIME=` busybox expr $STOP - $START`
	HOURS=` busybox expr $RUNTIME / 3600`
	REMAINDER=` busybox expr $RUNTIME % 3600`
	MINS=` busybox expr $REMAINDER / 60`
	SECS=` busybox expr $REMAINDER % 60`
	busybox printf "%02d:%02d:%02d\n" "$HOURS" "$MINS" "$SECS"
}

: ' =========================================================
 function name: setProp
 parameters: $1 - Key
             $2 - Value
			 $3 - File
 returns: void
 description:
    Sets build properties
============================================================= '
function setProp()
{
	if busybox [ $# -lt 2 ]; then
		return
	fi
	
	KEY=$1
	VALUE=$2
	PROP_FILE=${3:-/system/build.prop}
	SEPERATOR="="
	LINE=""
	
	if busybox [ -f $PROP_FILE ]; then
		LINE=` busybox grep $KEY $PROP_FILE `
		if busybox [ -n "${LINE}" ]; then
			if busybox [ -n "$( echo $LINE | busybox grep ' = ' )" ]; then
				SEPERATOR=" = "
			fi
			busybox sed -i "s|${KEY}${SEPERATOR}.*|${KEY}${SEPERATOR}${VALUE}|" $PROP_FILE
		fi
	else
		echo "$PROP_FILE  does not exist"
	fi
	setprop $KEY $VALUE
}

: ' =========================================================
 function name: sysro
 parameters: void
 returns: void
 description:
    Mounts system read-only
============================================================= '
function sysro()
{
	busybox mount -o remount,ro /system
}

: ' =========================================================
 function name: sysrw
 parameters: void
 returns: void
 description:
    Mounts system rear/write
============================================================= '
function sysrw()
{
	busybox mount -o remount,rw /system
}

: ' =========================================================
 function name: zipalign_apks
 parameters: void
 returns: void
 description:
    Checks for unaligned apks and aligns them.
============================================================= '
function zipalign_apks()
{
	if busybox [ -z "$( busybox which zipalign )" ]; then
		echo "Error: zipalign binary missing."
		return
	fi

	START=` busybox date +%s `
	CODEPATH=(` pm list packages -f | busybox cut -d ':' -f2 | busybox cut -d '=' -f1 `);
	MAX=${#CODEPATH[*]}
	INCREMENT=5
	PROGRESS=0
	PROGRESS_BAR=""

	echo
	echo "Zipaligning..."
	echo

	busybox mount -o remount,rw /system
	
	for codepath in ${CODEPATH[*]}; do
		
		let PROGRESS++
		PERCENT=$(( $PROGRESS * 100 / $MAX))
		if busybox [ $PERCENT -eq $INCREMENT ]; then
			INCREMENT=$(( $INCREMENT + 5 ))
			PROGRESS_BAR="${PROGRESS_BAR}="
		fi
		
		echo -ne "  \r  ${PROGRESS}/${MAX} ${PERCENT}% [ ${PROGRESS_BAR}> ]"
		
		if busybox [ -e $codepath ]; then
			zipalign -c 4 $codepath
			ZIP_CHECK=$?
			case $ZIP_CHECK in
				1)
					if zipalign -f 4 $codepath /data/local/pkg.apk; then
						busybox cp -f /data/local/pkg.apk $codepath
						busybox rm -f /data/local/pkg.apk
					fi
				;;
			esac
		fi

	done
	
	busybox mount -o remount,ro /system
	sync

	STOP=` busybox date +%s `
	RUNTIME=` runtime $START $STOP `
	echo
	echo
	echo "Zipalign complete! Runtime: ${RUNTIME}"
	echo
}