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android_bootable_recovery/utilities/sdparted
Giulio Cervera 15b06184cd cwm: set sd-ext label 
Change-Id: I963924083f1f6de17effafa80fb6f7fe003b304d
2010-12-30 22:49:34 +01:00

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#!/sbin/sh
# do logging, if not excluded with -x
LOGFILE="/data/sdparted.log"
[ "$1" != "-x" ] && echo "$0" "$@" >> "$LOGFILE" && "$0" -x "$@" 2>&1 | tee -a "$LOGFILE" && exit
shift
ShowError() { echo ; echo " err: $1" ; echo ; exit 1 ; }
ShowMessage() { echo ; echo " msg: $1" ; }
ShowHelp() {
cat <<DONEHELP
$SCRIPTNAME v$SCRIPTREV created by $MYNAME
if you use this script in your work, please give some credit. thanks.
requirements: cm-recovery-v1.4
usage: $SCRIPTNAME [options]
options:
--fatsize|-fs SIZE[MG] set the size of the fat32 partition to <SIZE>.
default=total sdcard size - (ext + swap)
--extsize|-es SIZE[MG] set the size of the ext partition to <SIZE>.
default=$EXTSIZE
--swapsize|-ss SIZE[MG] set the size of the swap partition to <SIZE>.
if set to 0, no swap partition will be created.
default=$SWAPSIZE
--extfs|-efs TYPE set the filesystem of ext partition to <TYPE>.
valid types=ext2, ext3, ext4
default=$EXTFS
--upgradefs|-ufs TYPE upgrades existing ext partition to <TYPE>.
this operation will NOT wipe your sdcard and
cannot be used with any partition creation options.
valid types=ext3, ext4
--downgradefs|-dfs TYPE downgrades existing ext partition to <TYPE>.
this operation will NOT wipe your sdcard and
cannot be used with any partition creation options.
valid types=ext2
--interactive|-i interactive mode
--help|-h display this help
--printonly|-po display sdcard information
--silent|-s do not prompt user, not even initial warning.
examples:
$SCRIPTNAME creates swap=$SWAPSIZE ext2=$EXTSIZE fat32=remaining free space
$SCRIPTNAME -efs ext4 creates swap=$SWAPSIZE ext4=$EXTSIZE fat32=remaining free space
$SCRIPTNAME -fs 1.5G -efs ext3 creates swap=$SWAPSIZE ext3=$EXTSIZE fat32=1536
$SCRIPTNAME -es 256M -ss 0 creates no swap ext2=256 fat32=remaining free space
$SCRIPTNAME -ufs ext4 upgrades ext partition to ext4
DONEHELP
}
UserAbort() {
WHILEEXIT=
while [ -z "$WHILEEXIT" ]
do
echo -n "do you want to continue? (Y/n) "
read response
echo
[ "$response" = "Y" ] || [ "$response" = "n" ] || [ "$response" = "N" ] && WHILEEXIT="$response"
done
echo "$response" > /dev/null 2>&1 >>"$LOGFILE"
[ "$response" != "Y" ]
}
UnmountAll () {
# unmount all partitions so we can work with $SDPATH
# i'm assuming no more than 3 partitions
# maybe make a little more elegant later
echo -n "unmounting all partitions..."
umount "$FATPATH" > /dev/null 2>&1 >>"$LOGFILE"
umount "$EXTPATH" > /dev/null 2>&1 >>"$LOGFILE"
umount "$SWAPPATH" > /dev/null 2>&1 >>"$LOGFILE"
echo "done"
echo
}
CheckReqs() {
echo -n "checking script requirements..."
# check for valid sdcard
[ -e $SDPATH ] || ShowError "$SDPATH does not exist!"
# look for necessary programs
[ -e $CMPARTED ] || ShowError "$CMPARTED does not exist!"
[ -e $CMTUNE2FS ] || ShowError "$CMTUNE2FS does not exist!"
[ -e $CME2FSCK ] || ShowError "$CME2FSCK does not exist!"
# verify cm-v1.4
PARTEDREV=`"$CMPARTED" "$SDPATH" version | grep Parted | cut -d" " -f3`
[ "$PARTEDREV" == "1.8.8.1.179-aef3" ] || ShowError "you are not using parted v1.8.8.1.179-aef3!"
echo "done"
echo
}
CheckTableType() {
TABLETYPE=`"$CMPARTED" "$SDPATH" print | grep Table: | cut -d" " -f3`
[ "$TABLETYPE" == "loop" -o "$TABLETYPE" == "msdos" ] && TTISOK=1 || TTISOK=0
[ "$TABLETYPE" == "loop" ] && TTISLOOP=1 || TTISLOOP=0
[ "$TABLETYPE" == "msdos" ] && TTISMSDOS=1 || TTISMOSDOS=0
}
ValidateExtArg() {
FUNC_RET="nonzero"
# validating argument
[ "$1" != "ext2" ] && [ "$1" != "ext3" ] && [ "$1" != "ext4" ] && FUNC_RET=
[ -z "$FUNC_RET" ] && [ -z "$IMODE" ] && ShowError "$1 is not a valid filesystem."
[ -z "$FUNC_RET" ] && [ -n "$IMODE" ] && ShowMessage "$1 is not a valid filesystem."
# return valid argument
[ -n "$FUNC_RET" ] && FUNC_RET="$1"
}
ValidateSizeArg() {
# check for zero-length arg to protect expr length
[ -z "$1" ] && ShowError "zero-length argument passed to size-validator"
SIZEMB=
ARGLEN=`expr length $1`
SIZELEN=$(($ARGLEN-1))
SIZEARG=`expr substr $1 1 $SIZELEN`
SIZEUNIT=`expr substr $1 $ARGLEN 1`
# check if SIZEARG is an integer
if [ $SIZEARG -eq $SIZEARG 2> /dev/null ] ; then
# look for G
[ "$SIZEUNIT" == "G" ] && SIZEMB=$(($SIZEARG * 1024))
# look for M
[ "$SIZEUNIT" == "M" ] && SIZEMB=$SIZEARG
# no units on arg AND prevents using bogus size units
[ -z "$SIZEMB" ] && [ $SIZEUNIT -eq $SIZEUNIT 2> /dev/null ] && SIZEMB=$1
# check if SIZEARG is a floating point number, GB only
elif [ `expr index "$SIZEARG" .` != 0 ] && [ "$SIZEUNIT" == "G" ] ; then
INT=`echo "$SIZEARG" | cut -d"." -f1`
FRAC=`echo "$SIZEARG" | cut -d"." -f2`
SIGDIGITS=`expr length $FRAC`
[ -z "$INT" ] && INT=0
INTMB=$(($INT * 1024))
FRACMB=$((($FRAC * 1024) / (10**$SIGDIGITS)))
SIZEMB=$(($INTMB + $FRACMB))
# it's not a valid size
else
[ -z "$IMODE" ] && ShowError "$1 is not a valid size"
fi
[ -z "$SIZEMB" ] && [ -n "$IMODE" ] && ShowMessage "$1 is not a valid size"
# return valid argument in MB
FUNC_RET=$SIZEMB
}
CalculatePartitions() {
# get size of sdcard in MB & do some math
SDSIZEMB=`"$CMPARTED" "$SDPATH" unit MB print | grep $SDPATH | cut -d" " -f3`
SDSIZE=${SDSIZEMB%MB}
[ -n "$FATSIZE" ] || FATSIZE=$(($SDSIZE - $EXTSIZE - $SWAPSIZE))
EXTEND=$(($FATSIZE + $EXTSIZE))
SWAPEND=$(($EXTEND + $SWAPSIZE))
# check for fatsize of 0
[ $FATSIZE -le 0 ] && ShowError "must have a fat32 partition greater than 0MB"
# check for zero-length sdsize...
# indicative of parted not reporting length
# correctly b/c of error on sdcard
[ -z "$SDSIZE" ] && ShowError "zero-length argument passed to partition-calculator"
# make sure we're not being asked to do the impossible
[ $(($FATSIZE + $EXTSIZE + $SWAPSIZE)) -gt $SDSIZE ] && [ -z "$IMODE" ] && ShowError "sum of requested partitions is greater than sdcard size"
}
UpgradeDowngradeOnly() {
if [ -n "$UEXTFSONLY" ] ; then
echo
[ -n "$CREATEPART" ] && ShowError "cannot use upgrade option when creating partitions, use -efs instead"
[ -n "$DEXTFSONLY" ] && ShowError "cannot upgrade AND downgrade, it just doesn't make sense"
echo "you have chosen to upgrade $EXTPATH to $UEXTFSONLY."
echo "this action will NOT delete any data from sdcard."
echo
[ -z "$SILENTRUN" ] && UserAbort && ShowError "script canceled by user"
echo
UpgradeExt "$UEXTFSONLY"
ShowCardInfo
elif [ -n "$DEXTFSONLY" ] ; then
echo
[ -n "$CREATEPART" ] && ShowError "cannot use downgrade option when creating partitions."
[ -n "$UEXTFSONLY" ] && ShowError "cannot downgrade AND upgrade, it just doesn't make sense."
echo "you have chosen to downgrade $EXTPATH to $DEXTFSONLY."
echo "this action will NOT delete any data from sdcard."
echo
[ -z "$SILENTRUN" ] && UserAbort && ShowError "script canceled by user"
echo
DowngradeExt "$DEXTFSONLY"
ShowCardInfo
fi
}
PrepareSdCard() {
echo
if [ $TTISOK -eq 0 ] ; then
echo "partition 1 may not be aligned to cylinder boundaries."
echo "to continue, this must be corrected."
elif [ $TTISLOOP -gt 0 ] ; then
echo "your sdcard's partition table type is $TABLETYPE."
echo "to continue, partition table must be set to 'msdos'."
elif [ $TTISMSDOS -gt 0 ] ; then
# just a reminder..in a later version,
# i may implement resizing of partitions,
# so this will be unnecessary. but until then...
echo "to continue, all existing partitions must be removed."
else
# this is not good, and should never happen
# if it does, there is a serious problem
ShowError "sdcard failed table type check."
fi
echo
echo "this action will remove all data from your sdcard."
echo
[ -z "$SILENTRUN" ] && UserAbort && ShowError "script canceled by user"
[ $TTISOK -eq 0 ] && echo -n "correcting cylinder boundaries..."
[ $TTISLOOP -gt 0 ] && echo -n "setting partition table to msdos..."
[ $TTISMSDOS -gt 0 ] && echo -n "removing all partitions..."
"$CMPARTED" -s "$SDPATH" mklabel msdos 2>&1 >>"$LOGFILE"
echo "done"
echo
}
ShowActions() {
echo
echo "total size of sdcard=$SDSIZEMB"
echo
echo "the following actions will be performed:"
echo " -create $FATSIZE""MB fat32 partition"
[ $EXTSIZE -gt 0 ] && echo " -create $EXTSIZE""MB ext2 partition"
[ $SWAPSIZE -gt 0 ] && echo " -create $SWAPSIZE""MB swap partition"
[ "$EXTFS" != "ext2" ] && echo " -ext2 partition will be upgraded to $EXTFS"
echo
[ -z "$SILENTRUN" ] && UserAbort && ShowError "script canceled by user"
echo
}
ShowCardInfo() {
CheckTableType
echo
echo "retrieving current sdcard information..."
if [ $TTISOK -gt 0 ] ; then
echo
parted "$SDPATH" print
echo
echo "script log is located @ /data/sdparted.log"
exit 0
else
echo
echo "partition 1 may not be aligned to cylinder boundaries."
ShowError "cannot complete print operation."
fi
echo
}
PartitionSdCard() {
echo "performing selected actions..."
echo
if [ $FATSIZE -gt 0 ] ; then
echo -n "creating fat32 partition..."
"$CMPARTED" -s "$SDPATH" mkpartfs primary fat32 0 "$FATSIZE"MB 2>&1 >>"$LOGFILE"
echo "done"
fi
if [ $EXTSIZE -gt 0 ] ; then
echo -n "creating ext2 partition..."
"$CMPARTED" -s "$SDPATH" mkpartfs primary ext2 "$FATSIZE"MB "$EXTEND"MB 2>&1 >>"$LOGFILE"
"$CMTUNE2FS" -L sd-ext "$EXTPATH" 2>&1 >>"$LOGFILE"
echo "done"
fi
if [ $SWAPSIZE -gt 0 ] ; then
echo -n "creating swap partition..."
"$CMPARTED" -s "$SDPATH" mkpartfs primary linux-swap "$EXTEND"MB "$SWAPEND"MB 2>&1 >>"$LOGFILE"
echo "done"
fi
echo
}
UpgradeExt() {
# check for no upgrade
[ "$1" == "ext2" ] && return
# check for ext partition
[ ! -e "$EXTPATH" ] && ShowError "$EXTPATH does not exist"
# have to use -m switch for this check b/c parted incorrectly
# reports all ext partitions as ext2 when running print <number>
CHECKEXTFS=`"$CMPARTED" -m "$SDPATH" print | grep ext | cut -d":" -f5`
[ "$CHECKEXTFS" == "$1" ] && ShowError "$EXTPATH is already $1"
# grabbed the code bits for ext3 from upgrade_fs(credit:cyanogen)
# check for ext2...must upgrade to ext3 first b4 ext4
if [ "$1" == "ext3" -o "$1" == "ext4" ] ; then
echo -n "adding journaling to $EXTPATH..."
umount /system/sd > /dev/null 2>&1 >>"$LOGFILE"
"$CME2FSCK" -p "$EXTPATH" 2>&1 >>"$LOGFILE"
"$CMTUNE2FS" -c0 -i0 -j "$EXTPATH" 2>&1 >>"$LOGFILE"
echo "done"
fi
# and got convert to ext4 from xda-forum(credit:Denkai)
if [ "$1" == "ext4" ] ; then
echo -n "converting $EXTPATH to ext4 filesystem..."
umount /system/sd > /dev/null 2>&1 >>"$LOGFILE"
"$CMTUNE2FS" -O extents,uninit_bg,dir_index "$EXTPATH" 2>&1 >>"$LOGFILE"
"$CME2FSCK" -fpDC0 "$EXTPATH" 2>&1 >>"$LOGFILE"
echo "done"
fi
echo
}
DowngradeExt() {
# check for ext partition
[ ! -e "$EXTPATH" ] && ShowError "$EXTPATH does not exist"
# have to use print for this check b/c parted incorrectly
# reports all ext partitions as ext2 when running print <number>
CHECKEXTFS=`"$CMPARTED" -m "$SDPATH" print | grep ext | cut -d":" -f5`
[ "$CHECKEXTFS" == "$1" ] && ShowError "$EXTPATH is already $1"
if [ "$CHECKEXTFS" == "ext4" -o "$1" == "ext3" ] ; then
# interweb says downgrading from ext4 is not possible
# without a backup/restore procedure.
# if i figure it out, i'll implement it.
ShowError "downgrading from ext4 is not currently supported"
fi
if [ "$1" == "ext2" ] ; then
echo -n "removing journaling from $EXTPATH..."
umount /system/sd > /dev/null 2>&1 >>"$LOGFILE"
"$CMTUNE2FS" -O ^has_journal "$EXTPATH" 2>&1 >>"$LOGFILE"
"$CME2FSCK" -fp "$EXTPATH" 2>&1 >>"$LOGFILE"
echo "done"
fi
echo
}
Interactive() {
cat <<DONEINSTRUCT
sdparted interactive mode
rules:
1. no answer means you accept default value
2. enter '0' for no partition
DONEINSTRUCT
UserAbort && ShowError "script canceled by user"
CalculatePartitions
GetSwapSize
FATSIZE=
CalculatePartitions
GetExtSize
GetExtType
FATSIZE=
CalculatePartitions
GetFatSize
}
GetSwapSize() {
SWAPTEST=
while [ -z "$SWAPTEST" ]
do
echo
echo -n "swap partition size [default=$SWAPSIZE]: "
read SWAPRESP
[ -z "$SWAPRESP" ] && SWAPRESP="$SWAPSIZE"
echo "$SWAPRESP" > /dev/null 2>&1 >>"$LOGFILE"
ValidateSizeArg "$SWAPRESP"
SWAPTEST="$FUNC_RET"
[ -n "$SWAPTEST" ] && [ $SWAPTEST -gt $SDSIZE ] && ShowMessage "$SWAPRESP > available space($(($SDSIZE))M)." && SWAPTEST=
done
SWAPSIZE=$SWAPTEST
}
GetExtSize() {
EXTTEST=
while [ -z "$EXTTEST" ]
do
echo
echo -n "ext partition size [default=$EXTSIZE]: "
read EXTRESP
[ -z "$EXTRESP" ] && EXTRESP="$EXTSIZE"
echo "$EXTRESP" > /dev/null 2>&1 >>"$LOGFILE"
ValidateSizeArg "$EXTRESP"
EXTTEST="$FUNC_RET"
[ -n "$EXTTEST" ] && [ $EXTTEST -gt $(($SDSIZE - $SWAPSIZE)) ] && ShowMessage "$EXTRESP > available space($(($SDSIZE - $SWAPSIZE))M)." && EXTTEST=
done
EXTSIZE=$EXTTEST
}
GetExtType() {
FSTEST=
while [ -z "$FSTEST" ]
do
echo
echo -n "ext partition type [default=$EXTFS]: "
read FSRESP
[ -z "$FSRESP" ] && FSRESP="$EXTFS"
echo "$FSRESP" > /dev/null 2>&1 >>"$LOGFILE"
ValidateExtArg "$FSRESP"
FSTEST="$FUNC_RET"
done
EXTFS="$FSTEST"
}
GetFatSize() {
FATTEST=
while [ -z "$FATTEST" ]
do
echo
echo -n "fat partition size [default=$FATSIZE]: "
read FATRESP
[ -z "$FATRESP" ] && FATRESP="$FATSIZE"
echo "$FATRESP" > /dev/null 2>&1 >>"$LOGFILE"
ValidateSizeArg "$FATRESP"
FATTEST="$FUNC_RET"
[ -n "$FATTEST" ] && [ $FATTEST -gt $FATSIZE ] && ShowMessage "$FATRESP > available space($(($SDSIZE - $SWAPSIZE - $EXTSIZE))M)." && FATTEST=
[ -n "$FATTEST" ] && [ $FATTEST -le 0 ] && ShowMessage "must have a fat32 partition greater than 0MB" && FATTEST=
done
FATSIZE=$FATTEST
}
SCRIPTNAME="sdparted"
SCRIPTREV="0.6"
MYNAME="51dusty"
IMODE=
SILENTRUN=
CREATEPART=
FUNC_RET=
UEXTFSONLY=
DEXTFSONLY=
TTISOK=
TTISLOOP=
TTISMSDOS=
SDSIZE=
SDSIZEMB=
if [ -z "$SDPATH" ]
then
SDPATH="/dev/block/mmcblk0"
else
echo Found SDPATH=$SDPATH
fi
FATSIZE=
FATTYPE="fat32"
FATPATH=$SDPATH"p1"
EXTSIZE=512
EXTFS="ext2"
EXTPATH=$SDPATH"p2"
EXTEND=
SWAPSIZE=32
SWAPTYPE="linux-swap"
SWAPPATH=$SDPATH"p3"
SWAPEND=
CMPARTED="/sbin/parted"
CMTUNE2FS="/sbin/tune2fs"
CME2FSCK="/sbin/e2fsck"
# give the output some breathing room
echo "$SCRIPTREV" >> "$LOGFILE"
echo
# check for arguments
while [ $# -gt 0 ] ; do
case "$1" in
-h|--help) ShowHelp ; exit 0 ;;
-fs|--fatsize) shift ; ValidateSizeArg "$1" ; FATSIZE="$FUNC_RET" ; CREATEPART="$1" ;;
-es|--extsize) shift ; ValidateSizeArg "$1" ; EXTSIZE="$FUNC_RET" ; CREATEPART="$1" ;;
-ss|--swapsize) shift ; ValidateSizeArg "$1" ; SWAPSIZE="$FUNC_RET" ; CREATEPART="$1" ;;
-efs|--extfs) shift ; ValidateExtArg "$1" ; EXTFS="$FUNC_RET" ; CREATEPART="$1" ;;
-ufs|--upgradefs) shift ; ValidateExtArg "$1" ; UEXTFSONLY="$FUNC_RET" ;;
-dfs|--downgradefs) shift ; ValidateExtArg "$1" ; DEXTFSONLY="$FUNC_RET" ;;
-i|--interactive) IMODE="$1" ;;
-s|--silent) SILENTRUN="$1" ;;
-po|--printonly) ShowCardInfo ;;
*) ShowHelp ; ShowError "unknown argument '$1'" ;;
esac
shift
done
# can't do silent when in interactive mode
[ -n "$IMODE" ] && SILENTRUN=
# make sure sdcard exists and all needed files are here
CheckReqs
# unmount all
UnmountAll
# upgrade only? downgrade only?
UpgradeDowngradeOnly
# check table
CheckTableType
# prep card
PrepareSdCard
# check for interactive mode
[ -n "$IMODE" ] && Interactive
# do some math
CalculatePartitions
# last chance to cancel
ShowActions
# partition card
PartitionSdCard
# upgrade fs if necessary
UpgradeExt "$EXTFS"
# say goodbye and show print output
ShowCardInfo
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