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Diffstat (limited to 'scripts/patch-rework.sh')
| -rwxr-xr-x | scripts/patch-rework.sh | 196 |
1 files changed, 0 insertions, 196 deletions
diff --git a/scripts/patch-rework.sh b/scripts/patch-rework.sh deleted file mode 100755 index d05d2c1..0000000 --- a/scripts/patch-rework.sh +++ /dev/null @@ -1,196 +0,0 @@ -#!/bin/sh - -# Get our required options -base="$1" -src="$2" -dst="$3" -shift 3 - -# The remainder is for diff -diff="$@" - -do_help() { - cat <<-_EOF_ - ${0##*/}: transform a patchset of non-p1 patches into -p1 patches - - Usage: - ${0##*/} <basedir> <src> <dst> [diffopts ...] - - Where: - basedir - points to the directory of the component to patch - - src - points to the directory containing the existing patchset - to transform - - dst - points to the directory where to put transformed patches - - diffopts - optional options to pass to diff, for debug purposes. You - should not need it - - Example: - Transform Gentoo patches against gcc-4.4.2 (some of which are - -p0, -p1 or even -p2 patches) into all -p1 patches: - - tar xjf gcc-4.4.2.tar.bz2 - patch-rework.sh gcc-4.4.2 \\ - /path/to/gentoo/gcc/patches \\ - gcc-4.4.2.patches - _EOF_ -} - -# Sanity checks -if [ -z "${base}" \ - -o ! -d "${base}" \ - -o ! -d "${src}" \ - -o -e "${dst}" -a ! -d "${dst}" \ - ]; then - do_help - exit 1 -fi - -mkdir -p "${dst}" -base="${base%%/}" -src="$( cd "${src}"; pwd )" -dst="$( cd "${dst}"; pwd )" - -# This function checks that the files listed in the file in "$1" -# do exist, at the given depth-stripping level (aka diff -p#) -do_check_files_at_depth() { - local flist="$1" - local depth="$2" - local ret=0 # 0: OK, !0: KO - - exec 6<&0 - exec 7<"${flist}" - - while read f; do - f="$( echo "${f}" |sed -r -e "s:^([^/]+/){${depth}}::;" )" - [ -f "${f}" ] || ret=1 - done </dev/fd/7 - - exec 7<&- - exec <&6 - - return ${ret} -} - -# Iterate through patches -for p in "${src}/"*.patch; do - pname="$( basename "${p}" )" - - printf "Handling patch '${pname}'...\n" - - printf " creating reference..." - cp -a "${base}" "${base}.orig" - printf " done\n" - - printf " retrieving patch comment..." - comment="$( awk ' -BEGIN { mark=0; } -$0~/^diff --/ { nextfile; } -$1=="---" { mark=1; next; } -$1=="+++" && mark==1 { nextfile; } -{ mark=0; print; } -' "${p}" )" - printf " done\n" - - printf " creating patched file list..." - diffstat -f 4 -r 2 -u -p 0 "${p}" \ - |head -n -1 \ - |awk '{ for(i=NF;i>=NF-5;i--) { $(i) = ""; } print; }' \ - |sort \ - >"diffstat.orig" - printf " done\n" - - cd "${base}" - - # Check all files exist, up to depth 3 - printf " checking depth:" - d=0 - while [ $d -lt 4 ]; do - printf " ${d}" - if do_check_files_at_depth "../diffstat.orig" ${d}; then - printf " ok, using depth '${d}'\n" - break - fi - d=$((d + 1)) - done - if [ ${d} -ge 4 ]; then - printf "\n" - printf " checking depth failed\n" - read -p " --> enter patch depth (or Ctrl-C to abort): " d - fi - - # Store the original list of files touched by the patch, - # removing the $d leading components - sed -r -e "s:^([^/]+/){${d}}::;" "../diffstat.orig" >"${dst}/${pname}.diffstat.orig" - - # Apply the patch proper, and check it applied cleanly. - # We can't check with --dry-run because of patches that - # contain multiple accumulated patches onto a single file. - printf " applying patch..." - if ! patch -g0 -F1 -f -p${d} <"${p}" >"../patch.out" 2>&1; then - printf " ERROR\n\n" - cd - >/dev/null - printf "There was an error while applying:\n --> ${p} <--\n" - printf "'${base}' was restored to the state it was prior to applying this faulty patch.\n" - printf "Here's the 'patch' command, and its output:\n" - printf " ----8<----\n" - printf " patch -g0 -F1 -f -p${d} <'${p}'\n" - sed -r -e 's/^/ /;' "patch.out" - printf " ----8<----\n" - exit 1 - fi - printf " done\n" - - printf " removing '.orig' files..." - find . -type f -name '*.orig' -exec rm -f {} + - printf " done\n" - - cd - >/dev/null - - printf " re-diffing the patch..." - printf "%s\n\n" "${comment}" >"${dst}/${pname}" - diff -durN "${base}.orig" "${base}" >>"${dst}/${pname}" - printf " done\n" - - if [ -n "${diff}" ]; then - printf " applying diff filter..." - filterdiff -x "${diff}" "${dst}/${pname}" >"tmp-diff" - mv "tmp-diff" "${dst}/${pname}" - printf " done\n" - fi - - printf " creating new patched file list..." - diffstat -f 4 -r 2 -u -p 1 "${dst}/${pname}" \ - |head -n -1 \ - |awk '{ for(i=NF;i>=NF-5;i--) { $(i) = ""; } print; }' \ - |sort \ - >"${dst}/${pname}.diffstat.new" - printf " done\n" - - printf " removing temporary files/dirs..." - rm -f "patch.out" - rm -f "diffstat.tmp" - rm -f "diffstat.orig" - rm -rf "${base}.orig" - printf " done\n" -done - -# Scan all new patches to see if they touch -# more files than the original patches -printf "\nChecking resulting patchset:\n" -for p in "${dst}/"*.patch; do - pname="$( basename "${p}" )" - - if ! cmp "${p}.diffstat.orig" "${p}.diffstat.new" >/dev/null; then - printf " --> '${pname}' differ in touched files <--\n" - else - rm -f "${p}.diffstat.orig" "${p}.diffstat.new" - fi -done -printf " done.\n" |