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|
#!/usr/bin/env bash
# Copyright (c) 2006
# Thorsten Glaser <tg@freewrt.org>
#
# Derived from the MirPorts Framework "update-patches" script:
#
# Copyright (c) 2003, 2004, 2005
# Thorsten "mirabile" Glaser <tg@MirBSD.de>
# Based upon code and idea (c) 2000
# Marc Espie for the OpenBSD project. All rights reserved.
#
# Provided that these terms and disclaimer and all copyright notices
# are retained or reproduced in an accompanying document, permission
# is granted to deal in this work without restriction, including un-
# limited rights to use, publicly perform, distribute, sell, modify,
# merge, give away, or sublicence.
#
# This work is provided "AS IS" and WITHOUT WARRANTY of any kind, to
# the utmost extent permitted by applicable law, neither express nor
# implied; without malicious intent or gross negligence. In no event
# may a licensor, author or contributor be held liable for indirect,
# direct, other damage, loss, or other issues arising in any way out
# of dealing in the work, even if advised of the possibility of such
# damage or existence of a defect, except proven that it results out
# of said person's immediate fault when using the work as intended.
[[ -n $BASH_VERSION ]] && shopt -s extglob
do_diff()
{
local f1=$2/$1
local f2=$3/$1
if [[ ! -e $f1 ]]; then
[[ -d ${f1%/*}/. ]] || mkdir -p ${f1%/*}
if [[ ! -s $f2 ]]; then
cat <<EOF
--- $f1 (non-existant)
+++ $f2 (empty)
@@ -0,0 +0,0 @@
EOF
return 0
fi
touch -t 197001010000.00 "$f1"
fi
diff -adup "$f1" "$f2"
return $?
}
TRANSFORM='sed s/[.+]/\\\\&/g'
PATCHDIR=$CURDIR/patches
EXTRADIR=$CURDIR/extra
mkdir -p $PATCHDIR
SUBDIST=${WRKDIST##${WRKDIR1}?(/)}
if [[ -n $SUBDIST ]]; then
mv ${WRKDIR1}.orig/${SUBDIST} ${WRKDIR1}/${SUBDIST}.orig
D_BASE=${WRKDIR1}
D_SUB=${SUBDIST}
# D_SUBP=$D_SUB
D_SUBP='[^/]*'
D_CMP=$D_SUBP
else
# WRKSRC == WRKDIR
D_BASE=$(dirname ${WRKDIR1})
D_SUB=$(basename ${WRKDIR1})
D_SUBP=$D_SUB
D_CMP=
fi
ORGDIST=${D_BASE}/${D_SUB}.orig
[[ -d $EXTRADIR ]] && \
(cd $EXTRADIR; find . -print0) | \
(cd $WRKDIST; pax -rw -0 -d $ORGDIST/)
if [[ -e $WRKDIST/.patched-newfiles ]]; then
touch $ORGDIST/.patched-newfiles
patch_newfiles=1
else
patch_newfiles=0
fi
DIFF_FLAGS="-adu -I \"^--- $(echo $D_SUBP.orig/ | $TRANSFORM)@@ .*\""
DIFF_FLAGS="$DIFF_FLAGS -I \"^\+\+\+ $(echo $D_SUBP/ | $TRANSFORM)@@ .*\""
for file in $(cd ${WRKDIST}; find . -type f | sed 's#^\./##'); do
[[ ! -e $ORGDIST/$file && $patch_newfiles = 0 ]] && continue
cmp -s "$ORGDIST/$file" "$WRKDIST/$file" && continue
echo "Processing ${file}..." >&2
# look in patchdir for an existing patchfile matching this
cd $PATCHDIR
for i in $PATCH_LIST; do
# Ignore non-files, or old backup
[[ ! -f $i || $i = *@(.orig|.rej|~) ]] && continue
# Patch found. Is this the one?
if grep "^[+-][+-][+-] $D_CMP[^/]*/$file " "$i" >/dev/null; then
# Multiple files in the diff?
if [ $(grep -c "^--- $D_CMP" "$i") -gt 1 -o \
$(grep -c "^+++ $D_CMP" "$i") -gt 1 ]; then
echo "Cannot process, $i contains patches" >&2
echo "to multiple files! Aborting." >&2
echo FAIL
[[ -n $SUBDIST ]] && mv \
${WRKDIR1}/${SUBDIST}.orig \
${WRKDIR1}.orig/${SUBDIST}
exit 0
fi
# Multiple diffs with this file?
let n=0
pflst=
for j in $PATCH_LIST; do
[[ ! -f $j || $j = *@(.orig|.rej|~) ]] && \
continue
grep "^[+-][+-][+-] $D_CMP[^/]*/$file " \
"$j" >/dev/null || continue
let n++
pflst="$pflst '$j'"
done
if (( n != 1 )); then
echo "Cannot process, file $file" >&2
echo "is contained in multiple patches:" >&2
echo "$pflst" >&2
echo FAIL
[[ -n $SUBDIST ]] && mv \
${WRKDIR1}/${SUBDIST}.orig \
${WRKDIR1}.orig/${SUBDIST}
exit 0
fi
# No, process this patch
accounted="$accounted $i"
# found it, copy preamble before comparision
( sed -e "/^--- /,\$d" <$i; \
cd $D_BASE && do_diff "$file" "$D_SUB.orig" "$D_SUB" \
) >"$i.new"
# did it change ? mark it as changed
tfile="$(echo "$file" | $TRANSFORM)"
if eval diff "$(echo "${DIFF_FLAGS}" \
| sed "s#@@#${tfile}#g")" \
"$i" "$i.new" 1>&2; then
rm "$i.new"
else
echo "Patch $i for $file updated" >&2
mv "$i" "$i.orig"
mv "$i.new" "$i"
edit="$edit $i"
fi
continue 2
fi
done
# Build a sensible name for the new patch file
patchname=patch-$(echo "$file" | sed -e 's#[/. ]#_#g')
echo "No patch-* found for $file, creating $patchname" >&2
( cd $D_BASE && do_diff "$file" "$D_SUB.orig" "$D_SUB" ) >$patchname
edit="$edit $patchname"
accounted="$accounted $patchname"
done
# Verify all patches accounted for
cd $PATCHDIR
for i in *; do
[[ ! -f $i || $i = *@(.orig|.rej|~) ]] && continue
grep '^\\ No newline at end of file' $i >/dev/null \
&& echo "*** Patch $i needs manual intervention" >&2
[[ $accounted != *@($i)* ]] \
&& echo "*** Patch $i not accounted for" >&2
done
echo $edit
[[ -n $SUBDIST ]] && mv ${WRKDIR1}/${SUBDIST}.orig ${WRKDIR1}.orig/${SUBDIST}
exit 0
|
