diff options
Diffstat (limited to 'freed-ora/tags/f27/4.15.9-300.fc27.gnu/deblob-main')
| -rwxr-xr-x | freed-ora/tags/f27/4.15.9-300.fc27.gnu/deblob-main | 311 |
1 files changed, 311 insertions, 0 deletions
diff --git a/freed-ora/tags/f27/4.15.9-300.fc27.gnu/deblob-main b/freed-ora/tags/f27/4.15.9-300.fc27.gnu/deblob-main new file mode 100755 index 000000000..80c8ba911 --- /dev/null +++ b/freed-ora/tags/f27/4.15.9-300.fc27.gnu/deblob-main @@ -0,0 +1,311 @@ +#! /bin/sh + +# Copyright (C) 2008-2017 Alexandre Oliva <lxoliva@fsfla.org> + +# This program is part of GNU Linux-libre, a GNU project that +# publishes scripts to clean up Linux so as to make it suitable for +# use in the GNU Project and in Free System Distributions. + +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. + +# This program is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 +# USA + +# deblob-main - prepare a GNU Linux-libre tarball out of a non-libre +# Linux tarball. It expects the Linux release (mver, say 3.0) as the +# first argument, the gnu sub-release (extra) as the second optional +# argument, and the patch release (sver, say .13) as an optional third +# argument. mver and sver are pasted together to form kver. + +# linux-$kver.tar.bz2 and deblob-$mver must exist in the current +# directory, and the line that sets kver and extra in deblob-$mver +# must match mver and extra. + +# The resulting tarball is put in linux-libre-$kver-gnu$extra.tar.bz2. +# An uncompressed xdelta that produces linux-libre-$kver-gnu$extra.tar +# out of linux-$kver.tar is put in linux-libre-$kver-gnu$extra.xdelta. +# This xdelta can be distributed to enable third parties to easily +# reconstruct the binary tarball starting out of sources downloaded +# from kernel.org, but without distributing non-Free Software +# yourself, because xdelta (unlike patches) is not reversible: the +# removed bits are not present in it at all. + +# xdelta version 3 uses different command line syntax, and it switched +# to the more standardized but less efficient vcdiff file format. +# This script will also produce a vcdiff file if xdelta3 is present, +# and it expects the xdelta program to use the version 1 syntax. + +# To enable you to check the differences between the tarballs, a patch +# file is generated in linux-libre-$kver-gnu$extra.patch. This patch +# file contains the non-Free blobs, even though in reversed form, so +# its distribution is discouraged. + +# The tar files and binary deltas are finally compressed with bzip2, +# and optionally with lzip and xz too, if the compressors are +# available. + +# At the end, the script attempts to generate a digital signature for +# the newly-created tarball. This is the last thing the script does, +# so interrupting it at that point to skip the signing won't fail to +# do anything else. + +# It is safe to interrupt the script at any other point. When it gets +# a ^C (other than during signing), it starts cleaning up all of its +# temporary and output files. If you insist, it may leave junk +# behind, and then it will refuse to run again before you clean it up +# by hand. It takes extra care to avoid overwriting useful files. + +# If deblob-$mver finds any unexpected situation, it will error out, +# and then deblob-main will quit. Pass --force to deblob-main, before +# any other argument, for deblob-main to ignore any such situations. + +case $1 in +--force) force=--force; shift;; +*) force=;; +esac + +# We don't want e.g. diff output translations to affect us. +LC_ALL=C; export LC_ALL +LANGUAGE=C; export LANGUAGE + +mver=$1 extra=$2 sver=$3 +kver=$mver$sver gnu=gnu$extra +deblob= dir=`echo "$0" | sed 's,[^/]*$,,;s,^$,.,;s,/*$,,'` + +if test -f linux-$kver.tar; then + zext=tar zcmd= +elif test -f linux-$kver.tar.bz2; then + zext=tar.bz2 zcmd=bunzip2 +elif test -f linux-$kver.tar.xz; then + zext=tar.xz zcmd=unxz +elif test -f linux-$kver.tar.lz; then + zext=tar.lz zcmd="lzip -d" +elif test -f linux-$kver.tar.gz; then + zext=tar.gz zcmd=gunzip +elif test -f linux-$kver.tgz; then + zext=tgz zcmd=gunzip +else + echo linux-$kver.tar not found, tried .bz2, .xz, .lz, .gz and .tgz too >&2 + exit 1 +fi + +if test -f deblob-$mver; then + deblob=deblob-$mver +elif test -f deblob; then + deblob=deblob +elif test -f $dir/deblob-$mver; then + cp $dir/deblob-$mver deblob + deblob=deblob +else + echo deblob does not exist >&2 + exit 1 +fi + +x1="kver=$mver extra=$extra" +x2=`grep "^kver=[^ ]* extra=" $deblob | sed 's, *#.*,,'` +if test "$x1" = "$x2"; then + : +else + echo deblob script does not match command-line arguments >&2 + echo expected: $x1 >&2 + echo found : $x2 >&2 + exit 1 +fi + +cleanup= + +for f in \ + linux-libre-$kver-$gnu.tar.bz2 \ + linux-libre-$kver-$gnu.tar.bz2.asc \ + linux-libre-$kver-$gnu.tar.bz2.sign \ + linux-libre-$kver-$gnu.tar.xz \ + linux-libre-$kver-$gnu.tar.xz.asc \ + linux-libre-$kver-$gnu.tar.xz.sign \ + linux-libre-$kver-$gnu.tar.lz \ + linux-libre-$kver-$gnu.tar.lz.asc \ + linux-libre-$kver-$gnu.tar.lz.sign \ + linux-libre-$kver-$gnu.tar \ + linux-libre-$kver-$gnu.tar.asc \ + linux-libre-$kver-$gnu.tar.sign \ + linux-libre-$kver-$gnu.patch \ + linux-libre-$kver-$gnu.log \ + linux-libre-$kver-$gnu.vcdiff \ + linux-libre-$kver-$gnu.vcdiff.bz2 \ + linux-libre-$kver-$gnu.vcdiff.bz2.asc \ + linux-libre-$kver-$gnu.vcdiff.bz2.sign \ + linux-libre-$kver-$gnu.vcdiff.xz \ + linux-libre-$kver-$gnu.vcdiff.xz.asc \ + linux-libre-$kver-$gnu.vcdiff.xz.sign \ + linux-libre-$kver-$gnu.vcdiff.lz \ + linux-libre-$kver-$gnu.vcdiff.lz.asc \ + linux-libre-$kver-$gnu.vcdiff.lz.sign \ + linux-libre-$kver-$gnu.xdelta \ + linux-libre-$kver-$gnu.xdelta.bz2 \ + linux-libre-$kver-$gnu.xdelta.bz2.asc \ + linux-libre-$kver-$gnu.xdelta.bz2.sign \ + linux-libre-$kver-$gnu.xdelta.xz \ + linux-libre-$kver-$gnu.xdelta.xz.asc \ + linux-libre-$kver-$gnu.xdelta.xz.sign \ + linux-libre-$kver-$gnu.xdelta.lz \ + linux-libre-$kver-$gnu.xdelta.lz.asc \ + linux-libre-$kver-$gnu.xdelta.lz.sign \ +; do + if test -f $f; then + echo $f already exists >&2 + exit 1 + fi + cleanup="$cleanup $f" +done + +for d in \ + linux-$kver \ + linux-libre-$kver-$gnu \ + orig-linux-$kver \ +; do + if test -d $d; then + echo $d already exists >&2 + exit 1 + fi + cleanup="$cleanup $d" +done + +if test -f $dir/deblob-$kver; then + if cmp $dir/deblob-$kver $deblob; then + : + else + echo $dir/deblob-$kver and $deblob are different >&2 + exit 1 + fi +fi + +if test ! -f deblob-check; then + if test -f $dir/deblob-check; then + cp $dir/deblob-check deblob-check + fi +else + if test -f $dir/deblob-check; then + if cmp $dir/deblob-check deblob-check; then + : + else + echo $dir/deblob-check and deblob-check are different >&2 + exit 1 + fi + fi +fi + +trap 'status=$?; echo cleaning up...; rm -rf $cleanup; (exit $status); exit' 0 1 2 15 + +set -e + +if test -n "$zcmd"; then + echo Uncompressing linux-$kver.$zext into linux-$kver.tar + rm -rf linux-$kver.tar + cleanup="$cleanup linux-$kver.tar" + $zcmd < linux-$kver.$zext > linux-$kver.tar +fi + +echo Extracting linux-$kver.tar into linux-$kver +rm -rf linux-$kver +tar -xf linux-$kver.tar +rm -rf linux-libre-$kver-$gnu linux-libre-$kver-$gnu.tar + +echo Copying linux-$kver to linux-libre-$kver-$gnu +cp linux-$kver.tar linux-libre-$kver-$gnu.tar +cp -lR linux-$kver/. linux-libre-$kver-$gnu + +rm -f linux-libre-$kver-$gnu.log linux-libre-$kver-$gnu.log.tmp +echo Deblobbing within linux-libre-$kver-$gnu, saving output to linux-libre-$kver-$gnu.log +# We can't just pipe deblob into tee, for then we fail to detect +# error conditions. Use file renaming to tell whether we succeeded. +if (cd linux-libre-$kver-$gnu && /bin/sh ../$deblob $force) 2>&1; then + mv linux-libre-$kver-$gnu.log.tmp linux-libre-$kver-$gnu.log +fi | tee linux-libre-$kver-$gnu.log.tmp +if test ! -f linux-libre-$kver-$gnu.log; then + mv linux-libre-$kver-$gnu.log.tmp linux-libre-$kver-$gnu.log + echo $deblob failed, aborting >&2 + exit 1 +fi +rm -f linux-libre-$kver-$gnu.patch + +# Do not copy these scripts for now, deblob-check regards itself as a blob. +# cp -p $0 $deblob deblob-check linux-libre-$kver-$gnu + +echo Generating linux-libre-$kver-$gnu.patch +diff -druN linux-$kver linux-libre-$kver-$gnu > linux-libre-$kver-$gnu.patch || : + +echo Removing removed or modified files from linux-libre-$kver-$gnu.tar +diff -rq linux-$kver linux-libre-$kver-$gnu | +sed -n " + s,^Only in \\(linux-$kver\\(/.*\\)\\?\\): \\(.*\\),\1/\3,p; + s,^Files \\(linux-$kver\\)/\\(.*\\) and linux-libre-$kver-$gnu/\\2 differ,\\1/\\2,p; +" | +xargs tar --delete -f linux-libre-$kver-$gnu.tar + +echo Adding modified or added files to linux-libre-$kver-$gnu.tar +rm -rf orig-linux-$kver +mv linux-$kver orig-linux-$kver +mv linux-libre-$kver-$gnu linux-$kver +diff -rq orig-linux-$kver linux-$kver | +sed -n " + s,^Files orig-\\(linux-$kver/.*\\) and \\1 differ,\\1,p; + s,^Only in \\(linux-$kver\\(/.*\\)\\?\\): \\(.*\\),\\1/\\3,p; +" | +xargs tar --append -f linux-libre-$kver-$gnu.tar + +echo Wiping out extracted trees +rm -rf linux-$kver orig-linux-$kver + +echo Creating vcdiff between linux-$kver.tar and linux-libre-$kver-$gnu.tar +xdelta3 -e -9 -S djw -s linux-$kver.tar linux-libre-$kver-$gnu.tar linux-libre-$kver-$gnu.vcdiff || : # don't fail if xdelta3 is not present + +echo Creating xdelta between linux-$kver.tar and linux-libre-$kver-$gnu.tar +xdelta delta -0 linux-$kver.tar linux-libre-$kver-$gnu.tar linux-libre-$kver-$gnu.xdelta || : # xdelta returns nonzero on success + +cleanup="linux-libre-$kver-$gnu.tar linux-libre-$kver-$gnu.xdelta" + +echo Compressing binary deltas and linux-libre-$kver-$gnu.tar +rm -f linux-$kver.tar +if test -f linux-libre-$kver-$gnu.xdelta; then + bzip2 -k9 linux-libre-$kver-$gnu.xdelta + xz -k9 linux-libre-$kver-$gnu.xdelta || : + lzip -k9s64MiB linux-libre-$kver-$gnu.xdelta || : +fi +bzip2 -k9 linux-libre-$kver-$gnu.tar +xz -k9 linux-libre-$kver-$gnu.tar || : +lzip -k9s64MiB linux-libre-$kver-$gnu.tar || : + +echo Done except for signing, feel free to interrupt +for f in \ + linux-libre-$kver-$gnu.tar \ + linux-libre-$kver-$gnu.tar.bz2 \ + linux-libre-$kver-$gnu.tar.xz \ + linux-libre-$kver-$gnu.tar.lz \ + linux-libre-$kver-$gnu.vcdiff \ + linux-libre-$kver-$gnu.xdelta \ + linux-libre-$kver-$gnu.xdelta.bz2 \ + linux-libre-$kver-$gnu.xdelta.xz \ + linux-libre-$kver-$gnu.xdelta.lz \ +; do + if test -f $f; then + gpg -a --detach-sign $f + mv $f.asc $f.sign + fi +done + +rm -f $cleanup +cleanup= +trap 'status=$?; (exit $status); exit' 0 1 2 15 + +echo All set, please review linux-libre-$kver-$gnu.patch + +exit 0 |
