[net-next-2.6.git] / scripts / patch-kernel

#! /bin/sh
# Script to apply kernel patches.
#   usage: patch-kernel [ sourcedir [ patchdir [ stopversion ] [ -acxx ] ] ]
#     The source directory defaults to /usr/src/linux, and the patch
#     directory defaults to the current directory.
# e.g.
#   scripts/patch-kernel . ..
#      Update the kernel tree in the current directory using patches in the
#      directory above to the latest Linus kernel
#   scripts/patch-kernel . .. -ac
#      Get the latest Linux kernel and patch it with the latest ac patch
#   scripts/patch-kernel . .. 2.4.9
#      Gets standard kernel 2.4.9
#   scripts/patch-kernel . .. 2.4.9 -ac
#      Gets 2.4.9 with latest ac patches
#   scripts/patch-kernel . .. 2.4.9 -ac11
#      Gets 2.4.9 with ac patch ac11
#   Note: It uses the patches relative to the Linus kernels, not the
#   ac to ac relative patches
#
# It determines the current kernel version from the top-level Makefile.
# It then looks for patches for the next sublevel in the patch directory.
# This is applied using "patch -p1 -s" from within the kernel directory.
# A check is then made for "*.rej" files to see if the patch was
# successful.  If it is, then all of the "*.orig" files are removed.
#
#       Nick Holloway <Nick.Holloway@alfie.demon.co.uk>, 2nd January 1995.
#
# Added support for handling multiple types of compression. What includes
# gzip, bzip, bzip2, zip, compress, and plaintext. 
#
#       Adam Sulmicki <adam@cfar.umd.edu>, 1st January 1997.
#
# Added ability to stop at a given version number
# Put the full version number (i.e. 2.3.31) as the last parameter
#       Dave Gilbert <linux@treblig.org>, 11th December 1999.

# Fixed previous patch so that if we are already at the correct version
# not to patch up.
#
# Added -ac option, use -ac or -ac9 (say) to stop at a particular version
#       Dave Gilbert <linux@treblig.org>, 29th September 2001.
#
# Add support for (use of) EXTRAVERSION (to support 2.6.8.x, e.g.);
# update usage message;
# fix some whitespace damage;
# be smarter about stopping when current version is larger than requested;
#	Randy Dunlap <rdunlap@xenotime.net>, 2004-AUG-18.
#
# Add better support for (non-incremental) 2.6.x.y patches;
# If an ending version number if not specified, the script automatically
# increments the SUBLEVEL (x in 2.6.x.y) until no more patch files are found;
# however, EXTRAVERSION (y in 2.6.x.y) is never automatically incremented
# but must be specified fully.
#
# patch-kernel does not normally support reverse patching, but does so when
# applying EXTRAVERSION (x.y) patches, so that moving from 2.6.11.y to 2.6.11.z
# is easy and handled by the script (reverse 2.6.11.y and apply 2.6.11.z).
#	Randy Dunlap <rdunlap@xenotime.net>, 2005-APR-08.

PNAME=patch-kernel

# Set directories from arguments, or use defaults.
sourcedir=${1-/usr/src/linux}
patchdir=${2-.}
stopvers=${3-default}

if [ "$1" = -h -o "$1" = --help -o ! -r "$sourcedir/Makefile" ]; then
cat << USAGE
usage: $PNAME [-h] [ sourcedir [ patchdir [ stopversion ] [ -acxx ] ] ]
  source directory defaults to /usr/src/linux,
  patch directory defaults to the current directory,
  stopversion defaults to <all in patchdir>.
USAGE
exit 1
fi

# See if we have any -ac options
for PARM in $*
do
  case $PARM in
	  -ac*)
		  gotac=$PARM;

	esac;
done

# ---------------------------------------------------------------------------
# arg1 is filename
noFile () {
	echo "cannot find patch file: ${patch}"
	exit 1
}

# ---------------------------------------------------------------------------
backwards () {
	echo "$PNAME does not support reverse patching"
	exit 1
}

# ---------------------------------------------------------------------------
# Find a file, first parameter is basename of file
# it tries many compression mechanisms and sets variables to say how to get it
findFile () {
  filebase=$1;

  if [ -r ${filebase}.gz ]; then
		ext=".gz"
		name="gzip"
		uncomp="gunzip -dc"
  elif [ -r ${filebase}.bz  ]; then
		ext=".bz"
		name="bzip"
		uncomp="bunzip -dc"
  elif [ -r ${filebase}.bz2 ]; then
		ext=".bz2"
		name="bzip2"
		uncomp="bunzip2 -dc"
  elif [ -r ${filebase}.zip ]; then
		ext=".zip"
		name="zip"
		uncomp="unzip -d"
  elif [ -r ${filebase}.Z ]; then
		ext=".Z"
		name="uncompress"
		uncomp="uncompress -c"
  elif [ -r ${filebase} ]; then
		ext=""
		name="plaintext"
		uncomp="cat"
  else
	return 1;
  fi

  return 0;
}

# ---------------------------------------------------------------------------
# Apply a patch and check it goes in cleanly
# First param is patch name (e.g. patch-2.4.9-ac5) - without path or extension

applyPatch () {
  echo -n "Applying $1 (${name})... "
  if $uncomp ${patchdir}/$1${ext} | patch -p1 -s -N -E -d $sourcedir
  then
    echo "done."
  else
    echo "failed.  Clean up yourself."
    return 1;
  fi
  if [ "`find $sourcedir/ '(' -name '*.rej' -o -name '.*.rej' ')' -print`" ]
  then
    echo "Aborting.  Reject files found."
    return 1;
  fi
  # Remove backup files
  find $sourcedir/ '(' -name '*.orig' -o -name '.*.orig' ')' -exec rm -f {} \;
 
  return 0;
}

# ---------------------------------------------------------------------------
# arg1 is patch filename
reversePatch () {
	echo -n "Reversing $1 (${name}) ... "
	if $uncomp ${patchdir}/"$1"${ext} | patch -p1 -Rs -N -E -d $sourcedir
	then
		echo "done."
	else
		echo "failed.  Clean it up."
		exit 1
	fi
	if [ "`find $sourcedir/ '(' -name '*.rej' -o -name '.*.rej' ')' -print`" ]
	then
		echo "Aborting.  Reject files found."
		return 1
	fi
	# Remove backup files
	find $sourcedir/ '(' -name '*.orig' -o -name '.*.orig' ')' -exec rm -f {} \;

	return 0
}

# set current VERSION, PATCHLEVEL, SUBLEVEL, EXTRAVERSION
# force $TMPFILEs below to be in local directory: a slash character prevents
# the dot command from using the search path.
TMPFILE=`mktemp ./.tmpver.XXXXXX` || { echo "cannot make temp file" ; exit 1; }
grep -E "^(VERSION|PATCHLEVEL|SUBLEVEL|EXTRAVERSION)" $sourcedir/Makefile > $TMPFILE
tr -d [:blank:] < $TMPFILE > $TMPFILE.1
. $TMPFILE.1
rm -f $TMPFILE*
if [ -z "$VERSION" -o -z "$PATCHLEVEL" -o -z "$SUBLEVEL" ]
then
    echo "unable to determine current kernel version" >&2
    exit 1
fi

NAME=`grep ^NAME $sourcedir/Makefile`
NAME=${NAME##*=}

echo "Current kernel version is $VERSION.$PATCHLEVEL.$SUBLEVEL${EXTRAVERSION} ($NAME)"

# strip EXTRAVERSION to just a number (drop leading '.' and trailing additions)
EXTRAVER=
if [ x$EXTRAVERSION != "x" ]
then
	EXTRAVER=${EXTRAVERSION#.}
	EXTRAVER=${EXTRAVER%%[[:punct:]]*}
	#echo "$PNAME: changing EXTRAVERSION from $EXTRAVERSION to $EXTRAVER"
fi

#echo "stopvers=$stopvers"
if [ $stopvers != "default" ]; then
	STOPSUBLEVEL=`echo $stopvers | cut -d. -f3`
	STOPEXTRA=`echo $stopvers | cut -d. -f4`
	STOPFULLVERSION=${stopvers%%.$STOPEXTRA}
	#echo "#___STOPSUBLEVEL=/$STOPSUBLEVEL/, STOPEXTRA=/$STOPEXTRA/"
else
	STOPSUBLEVEL=9999
	STOPEXTRA=9999
fi

# This all assumes a 2.6.x[.y] kernel tree.
# Don't allow backwards/reverse patching.
if [ $STOPSUBLEVEL -lt $SUBLEVEL ]; then
	backwards
fi

if [ x$EXTRAVER != "x" ]; then
	CURRENTFULLVERSION="$VERSION.$PATCHLEVEL.$SUBLEVEL.$EXTRAVER"
else
	CURRENTFULLVERSION="$VERSION.$PATCHLEVEL.$SUBLEVEL"
fi

if [ x$EXTRAVER != "x" ]; then
	echo "backing up to: $VERSION.$PATCHLEVEL.$SUBLEVEL"
	patch="patch-${CURRENTFULLVERSION}"
	findFile $patchdir/${patch} || noFile ${patch}
	reversePatch ${patch} || exit 1
fi

# now current is 2.6.x, with no EXTRA applied,
# so update to target SUBLEVEL (2.6.SUBLEVEL)
# and then to target EXTRAVER (2.6.SUB.EXTRAVER) if requested.
# If not ending sublevel is specified, it is incremented until
# no further sublevels are found.

if [ $STOPSUBLEVEL -gt $SUBLEVEL ]; then
while :				# incrementing SUBLEVEL (s in v.p.s)
do
    CURRENTFULLVERSION="$VERSION.$PATCHLEVEL.$SUBLEVEL"
    EXTRAVER=
    if [ $STOPFULLVERSION = $CURRENTFULLVERSION ]; then
        echo "Stopping at $CURRENTFULLVERSION base as requested."
        break
    fi

    SUBLEVEL=$(($SUBLEVEL + 1))
    FULLVERSION="$VERSION.$PATCHLEVEL.$SUBLEVEL"
    #echo "#___ trying $FULLVERSION ___"

    if [ $(($SUBLEVEL)) -gt $(($STOPSUBLEVEL)) ]; then
	echo "Stopping since sublevel ($SUBLEVEL) is beyond stop-sublevel ($STOPSUBLEVEL)"
	exit 1
    fi

    patch=patch-$FULLVERSION
    # See if the file exists and find extension
    findFile $patchdir/${patch} || noFile ${patch}

    # Apply the patch and check all is OK
    applyPatch $patch || break
done
#echo "#___sublevel all done"
fi

# There is no incremental searching for extraversion...
if [ "$STOPEXTRA" != "" ]; then
while :				# just to allow break
do
# apply STOPEXTRA directly (not incrementally) (x in v.p.s.x)
	FULLVERSION="$VERSION.$PATCHLEVEL.$SUBLEVEL.$STOPEXTRA"
	#echo "#... trying $FULLVERSION ..."
	patch=patch-$FULLVERSION

	# See if the file exists and find extension
	findFile $patchdir/${patch} || noFile ${patch}

	# Apply the patch and check all is OK
	applyPatch $patch || break
	#echo "#___extraver all done"
	break
done
fi

if [ x$gotac != x ]; then
  # Out great user wants the -ac patches
	# They could have done -ac (get latest) or -acxx where xx=version they want
	if [ $gotac = "-ac" ]; then
	  # They want the latest version
		HIGHESTPATCH=0
		for PATCHNAMES in $patchdir/patch-${CURRENTFULLVERSION}-ac*\.*
		do
			ACVALUE=`echo $PATCHNAMES | sed -e 's/^.*patch-[0-9.]*-ac\([0-9]*\).*/\1/'`
			# Check it is actually a recognised patch type
			findFile $patchdir/patch-${CURRENTFULLVERSION}-ac${ACVALUE} || break

		  if [ $ACVALUE -gt $HIGHESTPATCH ]; then
			  HIGHESTPATCH=$ACVALUE
		  fi
		done

		if [ $HIGHESTPATCH -ne 0 ]; then
			findFile $patchdir/patch-${CURRENTFULLVERSION}-ac${HIGHESTPATCH} || break
			applyPatch patch-${CURRENTFULLVERSION}-ac${HIGHESTPATCH}
		else
		  echo "No -ac patches found"
		fi
	else
	  # They want an exact version
		findFile $patchdir/patch-${CURRENTFULLVERSION}${gotac} || {
		  echo "Sorry, I couldn't find the $gotac patch for $CURRENTFULLVERSION.  Hohum."
			exit 1
		}
		applyPatch patch-${CURRENTFULLVERSION}${gotac}
	fi
fi
Commit	Line	Data
1da177e4 LT	1	#! /bin/sh
	2	# Script to apply kernel patches.
	3	# usage: patch-kernel [ sourcedir [ patchdir [ stopversion ] [ -acxx ] ] ]
	4	# The source directory defaults to /usr/src/linux, and the patch
	5	# directory defaults to the current directory.
	6	# e.g.
	7	# scripts/patch-kernel . ..
	8	# Update the kernel tree in the current directory using patches in the
	9	# directory above to the latest Linus kernel
	10	# scripts/patch-kernel . .. -ac
	11	# Get the latest Linux kernel and patch it with the latest ac patch
	12	# scripts/patch-kernel . .. 2.4.9
	13	# Gets standard kernel 2.4.9
	14	# scripts/patch-kernel . .. 2.4.9 -ac
	15	# Gets 2.4.9 with latest ac patches
	16	# scripts/patch-kernel . .. 2.4.9 -ac11
	17	# Gets 2.4.9 with ac patch ac11
	18	# Note: It uses the patches relative to the Linus kernels, not the
	19	# ac to ac relative patches
	20	#
	21	# It determines the current kernel version from the top-level Makefile.
	22	# It then looks for patches for the next sublevel in the patch directory.
	23	# This is applied using "patch -p1 -s" from within the kernel directory.
	24	# A check is then made for "*.rej" files to see if the patch was
	25	# successful. If it is, then all of the "*.orig" files are removed.
	26	#
	27	# Nick Holloway <Nick.Holloway@alfie.demon.co.uk>, 2nd January 1995.
	28	#
	29	# Added support for handling multiple types of compression. What includes
	30	# gzip, bzip, bzip2, zip, compress, and plaintext.
	31	#
	32	# Adam Sulmicki <adam@cfar.umd.edu>, 1st January 1997.
	33	#
	34	# Added ability to stop at a given version number
	35	# Put the full version number (i.e. 2.3.31) as the last parameter
	36	# Dave Gilbert <linux@treblig.org>, 11th December 1999.
	37
	38	# Fixed previous patch so that if we are already at the correct version
	39	# not to patch up.
	40	#
	41	# Added -ac option, use -ac or -ac9 (say) to stop at a particular version
	42	# Dave Gilbert <linux@treblig.org>, 29th September 2001.
	43	#
	44	# Add support for (use of) EXTRAVERSION (to support 2.6.8.x, e.g.);
	45	# update usage message;
	46	# fix some whitespace damage;
	47	# be smarter about stopping when current version is larger than requested;
f4b09ebc	48	# Randy Dunlap <rdunlap@xenotime.net>, 2004-AUG-18.
1922163c RD	49	#
	50	# Add better support for (non-incremental) 2.6.x.y patches;
	51	# If an ending version number if not specified, the script automatically
	52	# increments the SUBLEVEL (x in 2.6.x.y) until no more patch files are found;
	53	# however, EXTRAVERSION (y in 2.6.x.y) is never automatically incremented
	54	# but must be specified fully.
	55	#
	56	# patch-kernel does not normally support reverse patching, but does so when
	57	# applying EXTRAVERSION (x.y) patches, so that moving from 2.6.11.y to 2.6.11.z
	58	# is easy and handled by the script (reverse 2.6.11.y and apply 2.6.11.z).
f4b09ebc	59	# Randy Dunlap <rdunlap@xenotime.net>, 2005-APR-08.
1922163c RD	60
1922163c RD	61	PNAME=patch-kernel
1da177e4 LT	62
	63	# Set directories from arguments, or use defaults.
	64	sourcedir=${1-/usr/src/linux}
	65	patchdir=${2-.}
	66	stopvers=${3-default}
	67
22d6a6a0	68	if [ "$1" = -h -o "$1" = --help -o ! -r "$sourcedir/Makefile" ]; then
1da177e4	69	cat << USAGE
1922163c	70	usage: $PNAME [-h] [ sourcedir [ patchdir [ stopversion ] [ -acxx ] ] ]
1da177e4 LT	71	source directory defaults to /usr/src/linux,
	72	patch directory defaults to the current directory,
	73	stopversion defaults to <all in patchdir>.
	74	USAGE
	75	exit 1
	76	fi
	77
	78	# See if we have any -ac options
	79	for PARM in $*
	80	do
	81	case $PARM in
	82	-ac*)
	83	gotac=$PARM;
	84
	85	esac;
	86	done
	87
1922163c RD	88	# ---------------------------------------------------------------------------
	89	# arg1 is filename
	90	noFile () {
	91	echo "cannot find patch file: ${patch}"
	92	exit 1
	93	}
	94
	95	# ---------------------------------------------------------------------------
	96	backwards () {
	97	echo "$PNAME does not support reverse patching"
	98	exit 1
	99	}
	100
1da177e4 LT	101	# ---------------------------------------------------------------------------
	102	# Find a file, first parameter is basename of file
	103	# it tries many compression mechanisms and sets variables to say how to get it
	104	findFile () {
	105	filebase=$1;
	106
	107	if [ -r ${filebase}.gz ]; then
	108	ext=".gz"
	109	name="gzip"
	110	uncomp="gunzip -dc"
	111	elif [ -r ${filebase}.bz ]; then
	112	ext=".bz"
	113	name="bzip"
	114	uncomp="bunzip -dc"
	115	elif [ -r ${filebase}.bz2 ]; then
	116	ext=".bz2"
	117	name="bzip2"
	118	uncomp="bunzip2 -dc"
	119	elif [ -r ${filebase}.zip ]; then
	120	ext=".zip"
	121	name="zip"
	122	uncomp="unzip -d"
	123	elif [ -r ${filebase}.Z ]; then
	124	ext=".Z"
	125	name="uncompress"
	126	uncomp="uncompress -c"
	127	elif [ -r ${filebase} ]; then
	128	ext=""
	129	name="plaintext"
	130	uncomp="cat"
	131	else
	132	return 1;
	133	fi
	134
	135	return 0;
	136	}
	137
	138	# ---------------------------------------------------------------------------
	139	# Apply a patch and check it goes in cleanly
	140	# First param is patch name (e.g. patch-2.4.9-ac5) - without path or extension
	141
	142	applyPatch () {
	143	echo -n "Applying $1 (${name})... "
	144	if $uncomp ${patchdir}/$1${ext} \| patch -p1 -s -N -E -d $sourcedir
	145	then
	146	echo "done."
	147	else
	148	echo "failed. Clean up yourself."
	149	return 1;
	150	fi
	151	if [ "`find $sourcedir/ '(' -name '.rej' -o -name '..rej' ')' -print`" ]
	152	then
	153	echo "Aborting. Reject files found."
	154	return 1;
	155	fi
	156	# Remove backup files
	157	find $sourcedir/ '(' -name '.orig' -o -name '..orig' ')' -exec rm -f {} \;
	158
	159	return 0;
	160	}
	161
1922163c RD	162	# ---------------------------------------------------------------------------
	163	# arg1 is patch filename
	164	reversePatch () {
	165	echo -n "Reversing $1 (${name}) ... "
	166	if $uncomp ${patchdir}/"$1"${ext} \| patch -p1 -Rs -N -E -d $sourcedir
	167	then
	168	echo "done."
	169	else
	170	echo "failed. Clean it up."
	171	exit 1
	172	fi
	173	if [ "`find $sourcedir/ '(' -name '.rej' -o -name '..rej' ')' -print`" ]
	174	then
	175	echo "Aborting. Reject files found."
	176	return 1
	177	fi
	178	# Remove backup files
	179	find $sourcedir/ '(' -name '.orig' -o -name '..orig' ')' -exec rm -f {} \;
	180
	181	return 0
	182	}
	183
1da177e4	184	# set current VERSION, PATCHLEVEL, SUBLEVEL, EXTRAVERSION
22d6a6a0 AM	185	# force $TMPFILEs below to be in local directory: a slash character prevents
	186	# the dot command from using the search path.
	187	TMPFILE=`mktemp ./.tmpver.XXXXXX` \|\| { echo "cannot make temp file" ; exit 1; }
1da177e4 LT	188	grep -E "^(VERSION\|PATCHLEVEL\|SUBLEVEL\|EXTRAVERSION)" $sourcedir/Makefile > $TMPFILE
1da177e4 LT	189	tr -d [:blank:] < $TMPFILE > $TMPFILE.1
22d6a6a0	190	. $TMPFILE.1
1da177e4 LT	191	rm -f $TMPFILE*
	192	if [ -z "$VERSION" -o -z "$PATCHLEVEL" -o -z "$SUBLEVEL" ]
	193	then
	194	echo "unable to determine current kernel version" >&2
	195	exit 1
	196	fi
	197
	198	NAME=`grep ^NAME $sourcedir/Makefile`
	199	NAME=${NAME##*=}
	200
	201	echo "Current kernel version is $VERSION.$PATCHLEVEL.$SUBLEVEL${EXTRAVERSION} ($NAME)"
	202
	203	# strip EXTRAVERSION to just a number (drop leading '.' and trailing additions)
	204	EXTRAVER=
	205	if [ x$EXTRAVERSION != "x" ]
	206	then
22d6a6a0	207	EXTRAVER=${EXTRAVERSION#.}
1da177e4	208	EXTRAVER=${EXTRAVER%%[[:punct:]]*}
1922163c	209	#echo "$PNAME: changing EXTRAVERSION from $EXTRAVERSION to $EXTRAVER"
1da177e4 LT	210	fi
	211
	212	#echo "stopvers=$stopvers"
	213	if [ $stopvers != "default" ]; then
	214	STOPSUBLEVEL=`echo $stopvers \| cut -d. -f3`
	215	STOPEXTRA=`echo $stopvers \| cut -d. -f4`
07584163	216	STOPFULLVERSION=${stopvers%%.$STOPEXTRA}
1922163c	217	#echo "#___STOPSUBLEVEL=/$STOPSUBLEVEL/, STOPEXTRA=/$STOPEXTRA/"
1da177e4 LT	218	else
	219	STOPSUBLEVEL=9999
	220	STOPEXTRA=9999
	221	fi
	222
1922163c RD	223	# This all assumes a 2.6.x[.y] kernel tree.
	224	# Don't allow backwards/reverse patching.
	225	if [ $STOPSUBLEVEL -lt $SUBLEVEL ]; then
	226	backwards
	227	fi
	228
	229	if [ x$EXTRAVER != "x" ]; then
1da177e4	230	CURRENTFULLVERSION="$VERSION.$PATCHLEVEL.$SUBLEVEL.$EXTRAVER"
1922163c	231	else
1da177e4	232	CURRENTFULLVERSION="$VERSION.$PATCHLEVEL.$SUBLEVEL"
1922163c RD	233	fi
	234
	235	if [ x$EXTRAVER != "x" ]; then
	236	echo "backing up to: $VERSION.$PATCHLEVEL.$SUBLEVEL"
	237	patch="patch-${CURRENTFULLVERSION}"
	238	findFile $patchdir/${patch} \|\| noFile ${patch}
	239	reversePatch ${patch} \|\| exit 1
	240	fi
1da177e4	241
1922163c RD	242	# now current is 2.6.x, with no EXTRA applied,
	243	# so update to target SUBLEVEL (2.6.SUBLEVEL)
	244	# and then to target EXTRAVER (2.6.SUB.EXTRAVER) if requested.
	245	# If not ending sublevel is specified, it is incremented until
	246	# no further sublevels are found.
	247
	248	if [ $STOPSUBLEVEL -gt $SUBLEVEL ]; then
	249	while : # incrementing SUBLEVEL (s in v.p.s)
	250	do
	251	CURRENTFULLVERSION="$VERSION.$PATCHLEVEL.$SUBLEVEL"
	252	EXTRAVER=
07584163	253	if [ $STOPFULLVERSION = $CURRENTFULLVERSION ]; then
1da177e4 LT	254	echo "Stopping at $CURRENTFULLVERSION base as requested."
	255	break
	256	fi
	257
22d6a6a0	258	SUBLEVEL=$(($SUBLEVEL + 1))
1da177e4	259	FULLVERSION="$VERSION.$PATCHLEVEL.$SUBLEVEL"
1922163c	260	#echo "#___ trying $FULLVERSION ___"
1da177e4	261
22d6a6a0	262	if [ $(($SUBLEVEL)) -gt $(($STOPSUBLEVEL)) ]; then
1da177e4 LT	263	echo "Stopping since sublevel ($SUBLEVEL) is beyond stop-sublevel ($STOPSUBLEVEL)"
	264	exit 1
	265	fi
	266
	267	patch=patch-$FULLVERSION
1da177e4	268	# See if the file exists and find extension
1922163c	269	findFile $patchdir/${patch} \|\| noFile ${patch}
1da177e4 LT	270
	271	# Apply the patch and check all is OK
	272	applyPatch $patch \|\| break
	273	done
1922163c RD	274	#echo "#___sublevel all done"
	275	fi
	276
	277	# There is no incremental searching for extraversion...
	278	if [ "$STOPEXTRA" != "" ]; then
	279	while : # just to allow break
	280	do
	281	# apply STOPEXTRA directly (not incrementally) (x in v.p.s.x)
	282	FULLVERSION="$VERSION.$PATCHLEVEL.$SUBLEVEL.$STOPEXTRA"
	283	#echo "#... trying $FULLVERSION ..."
	284	patch=patch-$FULLVERSION
	285
	286	# See if the file exists and find extension
	287	findFile $patchdir/${patch} \|\| noFile ${patch}
	288
	289	# Apply the patch and check all is OK
	290	applyPatch $patch \|\| break
	291	#echo "#___extraver all done"
	292	break
	293	done
	294	fi
1da177e4 LT	295
	296	if [ x$gotac != x ]; then
	297	# Out great user wants the -ac patches
	298	# They could have done -ac (get latest) or -acxx where xx=version they want
22d6a6a0	299	if [ $gotac = "-ac" ]; then
1da177e4 LT	300	# They want the latest version
	301	HIGHESTPATCH=0
	302	for PATCHNAMES in $patchdir/patch-${CURRENTFULLVERSION}-ac\.
	303	do
	304	ACVALUE=`echo $PATCHNAMES \| sed -e 's/^.patch-[0-9.]-ac\([0-9]\)./\1/'`
	305	# Check it is actually a recognised patch type
	306	findFile $patchdir/patch-${CURRENTFULLVERSION}-ac${ACVALUE} \|\| break
	307
	308	if [ $ACVALUE -gt $HIGHESTPATCH ]; then
	309	HIGHESTPATCH=$ACVALUE
	310	fi
	311	done
	312
	313	if [ $HIGHESTPATCH -ne 0 ]; then
	314	findFile $patchdir/patch-${CURRENTFULLVERSION}-ac${HIGHESTPATCH} \|\| break
	315	applyPatch patch-${CURRENTFULLVERSION}-ac${HIGHESTPATCH}
	316	else
	317	echo "No -ac patches found"
	318	fi
	319	else
	320	# They want an exact version
	321	findFile $patchdir/patch-${CURRENTFULLVERSION}${gotac} \|\| {
	322	echo "Sorry, I couldn't find the $gotac patch for $CURRENTFULLVERSION. Hohum."
	323	exit 1
	324	}
	325	applyPatch patch-${CURRENTFULLVERSION}${gotac}
	326	fi
	327	fi