small-hacks/bash-patch-apply.plx

98 lines
3.2 KiB
Perl
Executable file

#!/usr/bin/perl
# Copyright (C) 2011, Bradley M. Kuhn
#
# This program gives you software freedom; you can copy, modify, convey,
# and/or redistribute it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 3 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 in a file called 'GPLv3'. If not, write to the:
# Free Software Foundation, Inc., 51 Franklin St, Fifth Floor
# Boston, MA 02110-1301, USA.
use strict;
use warnings;
foreach my $patchFile (@ARGV) {
if (not -r $patchFile) {
print STDERR "$patchFile is not readable\n";
exit 1;
}
if (not -r "${patchFile}.sig") {
print STDERR "${patchFile}.sig is not readable\n";
exit 1;
}
my $gpgData = "";
open(GPG, "-|", "/usr/bin/gpg ${patchFile}.sig 2>&1") or die "unable to run GPG on ${patchFile}.sig: $!";
while (my $line = <GPG>) {
$gpgData .= $line;
last if ($line =~ /(^|\s+)Good\s+signature/i);
}
if ($? != 0 or $gpgData !~ /Good\s+signature/i) {
print STDERR "GPG signature check problem on $patchFile\n";
exit 1;
}
open(PATCH, "<", $patchFile) or die "unable to read $patchFile: $!";
my($log, $takingLog, $inPatch, $date, undef) = ("", 0, 0);
while (my $line = <PATCH>) {
$takingLog = 1 if ($line =~ /^Patch-ID\s*:/);
if ($line =~ /^\s*Patch\s*(\([^\)]+\))?:\s*$/) {
$takingLog = 0;
$inPatch = 1;
next;
}
$log .= $line if $takingLog;
if ($inPatch and $line =~ /^\s*\-\-\-\s+(?:\S+)\s+(.+)\s*$/) {
$date = $1;
last;
}
}
close PATCH;
if ($? != 0) {
print STDERR "error reading $patchFile: $!";
exit 1;
}
if (not defined $date) {
print "STDERR could not find date for $patchFile\n";
exit 1;
}
if ($log eq "") {
print "STDERR could not find log for $patchFile\n";
exit 1;
}
system("/usr/bin/patch -p0 < $patchFile");
if ($? != 0) {
print STDERR "$patchFile did not apply clean!\n";
exit 1;
}
my $basePatchFile = `/usr/bin/basename $patchFile`;
my $basePatchFileSig = `/usr/bin/basename ${patchFile}.sig`;
chomp $basePatchFile;
chomp $basePatchFileSig;
$ENV{GIT_AUTHOR_DATE} = $date;
$ENV{GIT_COMMITTER_DATE} = $date;
$ENV{GIT_AUTHOR_NAME} = 'Chet Ramey';
$ENV{GIT_AUTHOR_EMAIL} = 'chet@cwru.edu';
open(COMMIT, "|-", "git commit -a -F -") or die "unable to run git: $!";
print COMMIT $log;
print COMMIT "\nThis patch, in file $basePatchFile, was downloaded from ftp.gnu.org on 2011-05-29,\nand $basePatchFileSig was furthermore verified, yielding the following output:\n";
print COMMIT $gpgData;
close COMMIT;
if ($? != 0) {
print STDERR "$patchFile commit failed!\n";
exit 1;
}
###############################################################################
# Local variables:
# compile-command: "perl -c bash-patch-apply.plx"
# End:
}