-#!/usr/bin/perl -w
+#!/usr/bin/perl
# This script is used to turn one or more of the "patch/*" branches
# into one or more diffs in the "patches" directory. Pass the option
# --gen if you want generated files in the diffs. Pass the name of
# diffs.
use strict;
+use warnings;
use Getopt::Long;
my $patches_dir = 'patches';
my $tmp_dir = "patches.$$";
+my $make_gen_cmd = 'make -f prepare-source.mak conf && ./config.status && make gen';
&Getopt::Long::Configure('bundling');
&usage if !&GetOptions(
+ 'branch|b=s' => \( my $master_branch = 'master' ),
'skip-check' => \( my $skip_branch_check ),
'shell|s' => \( my $launch_shell ),
'gen:s' => \( my $incl_generated_files ),
if ($incl_generated_files) {
die "'$tmp_dir' must not exist in the current directory.\n" if -e $tmp_dir;
mkdir($tmp_dir, 0700) or die "Unable to mkdir($tmp_dir): $!\n";
- system "./config.status Makefile && make gen && rsync -a @extra_files $tmp_dir/master/" and exit 1;
+ system "$make_gen_cmd && rsync -a @extra_files $tmp_dir/master/" and exit 1;
}
-my $last_touch = time;
+our $last_touch = time;
-my(%patches, %local_patch);
+my %patches;
# Start by finding all patches so that we can load all possible parents.
-open(PIPE, '-|', 'git', 'branch', '-a') or die $!;
+open(PIPE, '-|', 'git', 'branch', '-l') or die $!;
while (<PIPE>) {
- if (m# origin/patch/(.*)#) {
+ if (m# patch/(.*)#) {
$patches{$1} = 1;
- } elsif (m# patch/(.*)#) {
- $patches{$1} = $local_patch{$1} = 1;
}
}
close PIPE;
my(%parent, %description);
foreach my $patch (@patches) {
- my $branch = ($local_patch{$patch} ? '' : 'origin/') . "patch/$patch";
+ my $branch = "patch/$patch";
my $desc = '';
- open(PIPE, '-|', 'git', 'diff', '-U1000', "master...$branch", '--', "PATCH.$patch") or die $!;
+ open(PIPE, '-|', 'git', 'diff', '-U1000', "$master_branch...$branch", '--', "PATCH.$patch") or die $!;
while (<PIPE>) {
last if /^@@ /;
}
while (<PIPE>) {
next unless s/^[ +]//;
if (m#patch -p1 <patches/(\S+)\.diff# && $1 ne $patch) {
- $parent{$patch} = $1;
+ my $parent = $parent{$patch} = $1;
+ if (!$patches{$parent}) {
+ die "Parent of $patch is not a local branch: $parent\n";
+ }
}
$desc .= $_;
}
+ close PIPE;
$description{$patch} = $desc;
}
# Limit the list of patches to actually process based on @ARGV.
@patches = ( );
foreach (@ARGV) {
- s{^(patches|patch|origin/patch)/} {};
+ s{^patch(es)?/} {};
s{\.diff$} {};
+ if (!$patches{$_}) {
+ die "Local branch not available for patch: $_\n";
+ }
push(@patches, $_);
}
}
system "rm -rf $tmp_dir";
}
-sleep 1 if $last_touch == time;
+sleep 1 while $last_touch >= time;
system "git checkout $starting_branch" and exit 1;
exit;
}
$parent = "patch/$parent";
} else {
- $parent = 'master';
+ $parent = $master_branch;
}
print "======== $patch ========\n";
- sleep 1 if $incl_generated_files && $last_touch == time;
- if ($local_patch{$patch}) {
- system "git checkout patch/$patch" and return 0;
- } else {
- system "git checkout --track -b patch/$patch origin/patch/$patch" and return 0;
- }
+ sleep 1 while $incl_generated_files && $last_touch >= time;
+ system "git checkout patch/$patch" and return 0;
my $ok = system("git merge $parent") == 0;
if (!$ok || $launch_shell) {
print OUT $description{$patch}, "\n";
if ($incl_generated_files) {
- system "./config.status Makefile && make gen && rsync -a @extra_files $tmp_dir/$patch/";
+ system "$make_gen_cmd && rsync -a @extra_files $tmp_dir/$patch/" and exit 1;
}
$last_touch = time;
close PIPE;
if ($incl_generated_files) {
- $parent =~ s#.*/##;
- open(PIPE, '-|', 'diff', '-up', "$tmp_dir/$parent", "$tmp_dir/$patch") or die $!;
+ my $parent_dir;
+ if ($parent eq $master_branch) {
+ $parent_dir = 'master';
+ } else {
+ ($parent_dir) = $parent =~ m{([^/]+)$};
+ }
+ open(PIPE, '-|', 'diff', '-up', "$tmp_dir/$parent_dir", "$tmp_dir/$patch") or die $!;
while (<PIPE>) {
s#^(diff -up) $tmp_dir/[^/]+/(.*?) $tmp_dir/[^/]+/(.*)#$1 a/$2 b/$3#o;
s#^\Q---\E $tmp_dir/[^/]+/([^\t]+)\t.*#--- a/$1#o;