#!/usr/bin/perl
+# usage: tb-create <patch-spec>
use warnings;
use strict;
die "bad usage\n" unless @ARGV==1;
-our $spec = parse_branch_spec($ARGV[0]);
-our $current = current_tb_branch();
+our $spec = parse_patch_spec($ARGV[0]);
+our $current = current_branch();
-die "cannot make branch starting at base of another;".
- " check out a real branch\n" if $current->{Kind} eq 'base';
+die "cannot make patch starting at base of another;".
+ " check out a real branch or patch\n" if $current->{Kind} eq 'base';
die "strange branch ref $current->{Kind} $current->{Ref},\n".
- " making new branch with this as dep is unwise\n"
+ " making new patch with this as dep is unwise\n"
unless ($current->{Kind} eq 'foreign' ||
$current->{Kind} eq 'tip');
chomp $spec->{Date} or die $!;
}
+defined $spec->{Nick} or die "no patch nickname specified\n";
+
length($spec->{Date})==18 or die "partial date specified, not supported\n";
+chdir_toplevel();
+
check_no_unwanted_metadata('HEAD')
if $current->{Kind} ne 'tip';
-run_git_check_nooutput('cannot create new topbloke branch with staged files',
+run_git_check_nooutput("cannot create new patch with staged file(s)",
qw(diff --cached --name-only HEAD --));
+run_git_check_nooutput("cannot create new patch with".
+ " modified metadata file(s)",
+ qw(diff --name-only HEAD -- .topbloke));
+
# For the metadata files in .topbloke, we hope that the user
# doesn't modify them. If they do then they get to keep all the pieces.
#
# For .topbloke/msg, if it's modified by the user (ie, if working
# version differs from HEAD) we keep that and stage it.
-my $newbranch = "$spec->{Email}\@$spec->{Domain}/$spec->{Date}/$spec->{Nick}";
+my $newpatch = "$spec->{Email}\@$spec->{Domain}/$spec->{Date}/$spec->{Nick}";
+
+$newpatch = run_git_1line(qw(check-ref-format --print), $newpatch);
-$newbranch = run_git_1line(qw(check-ref-format --print), $newbranch);
+my $author = run_git_1line(qw(var GIT_AUTHOR_IDENT));
+$author =~ s/ \d+ [-+]\d+$// or die $!;
-printf "creating %s\n", $newbranch;
+my $subjprefix = git_config('topbloke.subjectprefix', '');
+
+printf "creating %s\n", $newpatch;
setup_config();
-my $user_edited_msg =
- run_git_test_anyoutput(qw(diff --name-only HEAD -- .topbloke/msg));
+#----- subroutines for setup
+
+sub create_and_switch ($$) {
+ my ($branchref, $what) = @_;
+ enable_reflog($branchref);
+ run_git(qw(update-ref -m), "tb-create $newpatch $what", $branchref, 'HEAD');
+ run_git(qw(symbolic-ref HEAD), $branchref);
+}
+
+sub stage_meta ($) {
+ my ($file) = @_;
+ run_git(qw(add), ".topbloke/$file");
+}
+
+sub meta_and_stage ($$) {
+ my ($file, $contents) = @_;
+ wf_contents(".topbloke/$file", $contents);
+ stage_meta($file);
+}
+
+#----- create the base branch
-my $baseref = "refs/topbloke-bases/$newbranch";
-run_git(qw(update-ref -m), "tb-create base", $baseref, 'HEAD');
+if (lstat '.topbloke') {
+ -d _ or die;
+} else {
+ mkdir('.topbloke') or die "create .topbloke: $!\n";
+}
+
+my $baseref = "refs/topbloke-bases/$newpatch";
+create_and_switch($baseref, 'base');
+
+meta_and_stage('msg', "# not applicable\n");
+meta_and_stage('deps', "# not applicable\n");
+meta_and_stage('flags', '');
-open GIT, "|-", 'git', qw(update-index --index-info) or die $!;
-foreach my $file (qw(msg deps)) {
- run_git(qw(update-index --cacheinfo 0644), $notapplicable_sha1,
- ".topbloke/$file");
+if ($current->{Kind} eq 'foreign') {
+ meta_and_stage('included', $current->{DepSpec}."\n");
+ meta_and_stage('pflags', '');
+}
+run_git(qw(commit -q -m), "tb-create $newpatch base");
+#----- create the tip branch
- my $nm = wf_start('.topbloke/msg');
- my $author = run_git_1line(qw(var GIT_AUTHOR_IDENT));
- $author =~ s/ \d+ [-+]\d+$//;
- wf($nm, "From: $author\n");
- foreach my $h (qw(To CC BCC)) {
- my $estatus;
- run_git(\$estatus, sub { wf($nm, "$h: $_") or die $!; },
- qw(config), "topbloke.".lc $h);
- die "$h $estatus" unless $estatus==0 || $estatus==256;
- }
- $subjprefix = git_config('topbloke.subjectprefix', '');
- wf($n, <END) or die $!;
-Subject: [${subprefix}PATCH] $spec->{Nick}
+my $tipref = "refs/topbloke-tips/$newpatch";
+create_and_switch($tipref, 'tip');
+
+my $nm = wf_start('.topbloke/msg');
+wf($nm, "From: $author\n");
+foreach my $h (qw(To CC BCC)) {
+ my $estatus;
+ run_git(\$estatus, sub { wf($nm, "$h: $_") or die $!; },
+ qw(config), "topbloke.".lc $h);
+ die "$h $estatus" unless $estatus==0 || $estatus==256;
+}
+wf($nm, <<END) or die $!;
+Subject: [${subjprefix}PATCH] $spec->{Nick}
<patch description>
Signed-off-by: $author
END
- wf_done($nm);
- run_git(qw(add .topbloke/msg));
- print " created and staged new .topbloke/msg\n";
-} else {
- if (!
- print " staged your modified .topbloke/msg\n";
- run_git(qw(add .topbloke/msg));
- } else {
- print " left your (partially staged?) .topbloke/msg\n";
- }
-}
+wf_done($nm);
+stage_meta('msg');
-sub meta_and_stage ($$) {
- my ($file, $contents) = @_;
- wf_contents(".topbloke/$file", $contents);
- run_git(qw(add), ".topbloke/$file");
-}
+meta_and_stage('deps', "$current->{DepSpec}\n");
+# we inherit empty flags from the base branch
-meta_and_stage("deps", $current->{DepSpec}."\n");
-meta_and_stage("flags", '');
+flagsfile_add_flag('included',$newpatch);
+stage_meta('included');
-if ($current->{Kind} eq 'foreign') {
- meta_and_stage('included', $current->{DepSpec});
-
+run_git(qw(commit -q -m), "tb-create $newpatch tip");