crosstool-ng/scripts/patch-renumber.sh
Yann E. MORIN" 33374cac39 scripts: output renumbered patches in a new directory
When renumbering patches, the original patches get removed and replaced
with the new ones. This can be annoying to loose the original patches.
Fix this by putting the new patchs in a directory of their own.
2009-11-10 19:32:11 +01:00

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#!/bin/sh
# Yes, this intends to be a true POSIX script file.
set -e
myname="$0"
# Parse the tools' paths configuration
. "paths.mk"
doUsage() {
cat <<_EOF_
Usage: ${myname} <src_dir> <dst_dir> <base> <inc> [sed_re]
Renumbers all patches found in 'src_dir', starting at 'base', with an
increment of 'inc', and puts the renumbered patches in 'dst_dir'.
Leading digits are replaced with the new indexes, and a subsequent '_'
is replaced with a '-'.
If 'sed_re' is given, it is interpreted as a valid sed expression, and
is be applied to the patch name.
If the environment variable FAKE is set to 'y', then nothing gets done,
the command to run is only be printed, and not executed (so you can
check beforehand).
'dst_dir' must not yet exist.
Eg.:
patch-renumber.sh patches/gcc/4.2.3 patches/gcc/4.2.4 100 10
patch-renumber.sh /some/dir/my-patches patches/gcc/4.3.1 100 10 's/(all[_-])*(gcc[-_])*//;'
_EOF_
}
[ $# -lt 4 -o $# -gt 5 ] && { doUsage; exit 1; }
src="${1}"
dst="${2}"
cpt="${3}"
inc="${4}"
sed_re="${5}"
if [ ! -d "${src}" ]; then
printf "%s: '%s': not a directory\n" "${myname}" "${src}"
exit 1
fi
if [ -d "${dst}" ]; then
printf "%s: '%s': directory already exists\n" "${myname}" "${dst}"
exit 1
fi
Q=
if [ -n "${FAKE}" ]; then
printf "%s: won't do anything: FAKE='%s'\n" "${myname}" "${FAKE}"
Q="echo"
fi
${Q} mkdir -pv "${dst}"
for p in "${src}/"*.patch*; do
[ -e "${p}" ] || { echo "No such file '${p}'"; exit 1; }
newname="$(printf "%03d-%s" \
"${cpt}" \
"$( basename "${p}" \
|"${sed}" -r -e 's/^[[:digit:]]+[-_]//' \
-e "${sed_re}" \
)" \
)"
${Q} cp -v "${p}" "${dst}/${newname}"
cpt=$((cpt+inc))
done