-#!/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 ),
die "The checkout is not clean:\n", $status;
}
+my $master_commit;
+open PIPE, '-|', "git log -1 --no-color $master_branch" or die $!;
+while (<PIPE>) {
+ if (/^commit (\S+)/) {
+ $master_commit = $1;
+ last;
+ }
+}
+close PIPE;
+die "Unable to determine commit hash for master branch: $master_branch\n" unless defined $master_commit;
+
my @extra_files;
open(IN, '<', 'Makefile.in') or die "Couldn't open Makefile.in: $!\n";
while (<IN>) {
if ($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;
}
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, $_);
}
}
my($patch) = @_;
my $parent = $parent{$patch};
+ my $based_on;
if (defined $parent) {
unless ($completed{$parent}++) {
update_patch($parent);
}
- $parent = "patch/$parent";
+ $based_on = $parent = "patch/$parent";
} else {
- $parent = 'master';
+ $parent = $master_branch;
+ $based_on = $master_commit;
}
print "======== $patch ========\n";
sleep 1 while $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;
- }
+ system "git checkout patch/$patch" and return 0;
- my $ok = system("git merge $parent") == 0;
+ my $ok = system("git merge $based_on") == 0;
if (!$ok || $launch_shell) {
- print qq|"git merge $parent" incomplete -- please fix.\n| if !$ok;
+ print qq|"git merge $based_on" incomplete -- please fix.\n| if !$ok;
$ENV{PS1} = "[$parent] patch/$patch: ";
while (1) {
if (system($ENV{SHELL}) != 0) {
}
open(OUT, '>', "$patches_dir/$patch.diff") or die $!;
- print OUT $description{$patch}, "\n";
+ print OUT $description{$patch}, "\nbased-on: $based_on\n";
if ($incl_generated_files) {
- system "./config.status Makefile && make gen && rsync -a @extra_files $tmp_dir/$patch/" and exit 1;
+ system "$make_gen_cmd && rsync -a @extra_files $tmp_dir/$patch/" and exit 1;
}
$last_touch = time;
- open(PIPE, '-|', 'git', 'diff', $parent) or die $!;
+ open(PIPE, '-|', 'git', 'diff', $based_on) or die $!;
DIFF: while (<PIPE>) {
while (m{^diff --git a/PATCH}) {
while (<PIPE>) {
close PIPE;
if ($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;
sub usage
{
die <<EOT;
-Usage: patch-update [OPTIONS]
-
---gen[=DIR] Include generated files. Optional dest DIR overrides "patches".
---skip-check Skip the check that ensures starting with a clean branch.
+Usage: patch-update [OPTIONS] [patches/DIFF...]
+
+Options:
+-b, --branch=BRANCH The master branch to merge into the patch/* branches.
+ --gen[=DIR] Include generated files. Optional destination DIR
+ arg overrides the default of using the "patches" dir.
+ --skip-check Skip the check that ensures starting with a clean branch.
+-s, --shell Launch a shell for every patch/* branch updated, not
+ just when a conflict occurs.
+-h, --help Output this help message.
EOT
}
Matt McCutchen's Web Site / rsync / rsync.git / blobdiff