# diffs.
use strict;
+use Getopt::Long;
my $patches_dir = 'patches';
-my $incl_generated_files;
-
-if (@ARGV && $ARGV[0] =~ /^--gen(?:=(\S+))?$/) {
- $patches_dir = $1 if defined $1;
+my $tmp_dir = "patches.$$";
+
+&Getopt::Long::Configure('bundling');
+&usage if !&GetOptions(
+ 'skip-check' => \( my $skip_branch_check ),
+ 'gen:s' => \( my $incl_generated_files ),
+ 'help|h' => \( my $help_opt ),
+);
+&usage if $help_opt;
+
+if (defined $incl_generated_files) {
+ $patches_dir = $incl_generated_files if $incl_generated_files ne '';
$incl_generated_files = 1;
- shift;
}
die "No '$patches_dir' directory was found.\n" unless -d $patches_dir;
die "No '.git' directory present in the current dir.\n" unless -d '.git';
+unless ($skip_branch_check) {
+ open(IN, '-|', 'git status') or die $!;
+ my $status = join('', <IN>);
+ close IN;
+ die "The checkout is not clean:\n", $status unless $status =~ /\nnothing to commit \(working directory clean\)/;
+ die "The checkout is not on the master branch.\n" unless $status =~ /^# On branch master\n/;
+}
+
my @extra_files;
open(IN, '<', 'Makefile.in') or die "Couldn't open Makefile.in: $!\n";
while (<IN>) {
}
close IN;
-system "git checkout master" and exit 1;
if ($incl_generated_files) {
- die "'a' must not exist in the current directory.\n" if -e 'a';
- die "'b' must not exist in the current directory.\n" if -e 'b';
- system "./config.status Makefile && make gen && rsync -a @extra_files a/" and exit 1;
+ 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;
}
my $last_touch = time;
}
if ($incl_generated_files) {
- system "rm -rf a b";
+ system "rm -rf $tmp_dir";
}
sleep 1 if $last_touch == time;
-system "git checkout master";
+system "git checkout master" and die $!;
exit;
}
if ($incl_generated_files) {
- system "./config.status Makefile && make gen && rsync -a @extra_files b/" and exit 1;
+ system "./config.status Makefile && make gen && rsync -a @extra_files $tmp_dir/$patch/" and exit 1;
}
$last_touch = time;
close PIPE;
if ($incl_generated_files) {
- open(PIPE, '-|', 'diff', '-up', 'a', 'b') or die $!;
+ $parent =~ s#.*/##;
+ open(PIPE, '-|', 'diff', '-up', "$tmp_dir/$parent", "$tmp_dir/$patch") or die $!;
while (<PIPE>) {
- s/^((?:---|\+\+\+) [^\t]+)\t.*/$1/;
+ s#^(diff -up) $tmp_dir/[^/]+/(.*?) $tmp_dir/[^/]+/(.*)#$1 a/$2 b/$3#o;
+ s#^\Q---\E $tmp_dir/[^/]+/([^\t]+)\t.*#--- a/$1#o;
+ s#^\Q+++\E $tmp_dir/[^/]+/([^\t]+)\t.*#+++ b/$1#o;
print OUT $_;
}
close PIPE;
close OUT;
}
+
+exit;
+
+sub usage
+{
+ die <<EOT;
+Usage: patch-update [OPTIONS]
+
+--gen[=DIR] Inlcude generated files.
+--skip-check Skip the master-branch, clean-checkout check.
+EOT
+}