Make it possible to create a new patch file while on a patch branch.

packaging/git-status.pl

@@ -6,25 +6,28 @@ sub check_git_state
     my($master_branch, $fatal_unless_clean, $check_patches_dir) = @_;
 
     my($cur_branch) = check_git_status($fatal_unless_clean);
-    if ($cur_branch ne $master_branch) {
+    (my $branch = $cur_branch) =~ s{^patch/([^/]+)/[^/]+$}{$1}; # change patch/BRANCH/PATCH_NAME into BRANCH
+    if ($branch ne $master_branch) {
 	print "The checkout is not on the $master_branch branch.\n";
 	exit 1 if $master_branch ne 'master';
-	print "Do you want me to continue with --branch=$cur_branch? [n] ";
+	print "Do you want me to continue with --branch=$branch? [n] ";
 	$_ = <STDIN>;
 	exit 1 unless /^y/i;
-	$_[0] = $master_branch = $cur_branch; # Updates caller's $master_branch too.
+	$_[0] = $master_branch = $branch; # Updates caller's $master_branch too.
     }
 
     if ($check_patches_dir && -d 'patches/.git') {
-	($cur_branch) = check_git_status($fatal_unless_clean, 'patches');
-	if ($cur_branch ne $master_branch) {
-	    print "The *patches* checkout is on branch $cur_branch, not branch $master_branch.\n";
+	($branch) = check_git_status($fatal_unless_clean, 'patches');
+	if ($branch ne $master_branch) {
+	    print "The *patches* checkout is on branch $branch, not branch $master_branch.\n";
 	    print "Do you want to change it to branch $master_branch? [n] ";
 	    $_ = <STDIN>;
 	    exit 1 unless /^y/i;
 	    system "cd patches && git checkout '$master_branch'";
 	}
     }
+
+    return $cur_branch;
 }
 
 sub check_git_status

packaging/patch-update

@@ -32,7 +32,7 @@ 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';
 
 require 'packaging/git-status.pl';
-check_git_state($master_branch, !$skip_branch_check, 1);
+my $starting_branch = check_git_state($master_branch, !$skip_branch_check, 1);
 
 my $master_commit;
 open PIPE, '-|', "git log -1 --no-color $master_branch" or die $!;
@@ -124,7 +124,7 @@ if ($incl_generated_files) {
 }
 
 sleep 1 while $last_touch >= time;
-system "git checkout $master_branch" and exit 1;
+system "git checkout $starting_branch" and exit 1;
 
 exit;