From f8f0ca39f508694bb5ede6b6f924e435cb39c35b Mon Sep 17 00:00:00 2001
From: Joe Rayhawk <jrayhawk@omgwallhack.org>
Date: Tue, 3 May 2011 00:43:55 -0700
Subject: patch: headless gits: replace bad wannabe plumbing with the real
 thing (now packed-refs will work!)

---
 doc/todo/headless_git_branches.mdwn | 30 ++++++++++++++++--------------
 1 file changed, 16 insertions(+), 14 deletions(-)

diff --git a/doc/todo/headless_git_branches.mdwn b/doc/todo/headless_git_branches.mdwn
index 280405730..1dd867765 100644
--- a/doc/todo/headless_git_branches.mdwn
+++ b/doc/todo/headless_git_branches.mdwn
@@ -16,28 +16,30 @@ Summary: Change three scary loud failure cases related to empty branches into th
 
 <pre>
 diff --git a/IkiWiki/Plugin/git.pm b/IkiWiki/Plugin/git.pm
-index cf7fbe9..a1b5ed3 100644
+index cf7fbe9..e5bafcf 100644
 --- a/IkiWiki/Plugin/git.pm
 +++ b/IkiWiki/Plugin/git.pm
-@@ -439,17 +439,20 @@ sub git_commit_info ($;$) {
+@@ -439,17 +439,21 @@ sub git_commit_info ($;$) {
  
  	my @opts;
  	push @opts, "--max-count=$num" if defined $num;
-+	my @raw_lines;
-+	my @ci;
- 
+-
 -	my @raw_lines = run_or_die('git', 'log', @opts,
 -		'--pretty=raw', '--raw', '--abbrev=40', '--always', '-c',
 -		'-r', $sha1, '--', '.');
-+	if (-e $config{srcdir} . '/.git/refs/heads/' . $config{gitmaster_branch}) {
-+		@raw_lines = run_or_die('git', 'log', @opts,
-+			'--pretty=raw', '--raw', '--abbrev=40', '--always', '-c',
-+			'-r', $sha1, '--', '.');
- 
--	my @ci;
+-
++	my @raw_lines;
+ 	my @ci;
 -	while (my $parsed = parse_diff_tree(\@raw_lines)) {
 -		push @ci, $parsed;
 -	}
++        
++	# Test to see if branch actually exists yet.
++	if (run_or_non('git', 'show-ref', '--quiet', '--verify', '--', 'refs/heads/' . $config{gitmaster_branch}) ) {
++		@raw_lines = run_or_die('git', 'log', @opts,
++			'--pretty=raw', '--raw', '--abbrev=40', '--always', '-c',
++			'-r', $sha1, '--', '.');
++
 +		while (my $parsed = parse_diff_tree(\@raw_lines)) {
 +			push @ci, $parsed;
 +		}
@@ -48,19 +50,19 @@ index cf7fbe9..a1b5ed3 100644
  
  	return wantarray ? @ci : $ci[0];
  }
-@@ -474,7 +477,10 @@ sub rcs_update () {
+@@ -474,7 +478,10 @@ sub rcs_update () {
  	# Update working directory.
  
  	if (length $config{gitorigin_branch}) {
 -		run_or_cry('git', 'pull', '--prune', $config{gitorigin_branch});
 +		run_or_cry('git', 'fetch', '--prune', $config{gitorigin_branch});
-+		if (-e $config{srcdir} . '/.git/refs/remotes/' . $config{gitorigin_branch} . '/' . $config{gitmaster_branch}) {
++		if (run_or_non('git', 'show-ref', '--quiet', '--verify', '--', 'refs/remotes/' . $config{gitorigin_branch} . '/' . $config{gitmaster_branch}) ) {
 +			run_or_cry('git', 'merge', $config{gitorigin_branch} . '/' . $config{gitmaster_branch});
 +		}
  	}
  }
  
-@@ -559,7 +565,7 @@ sub rcs_commit_helper (@) {
+@@ -559,7 +566,7 @@ sub rcs_commit_helper (@) {
  	# So we should ignore its exit status (hence run_or_non).
  	if (run_or_non('git', 'commit', '-m', $params{message}, '-q', @opts)) {
  		if (length $config{gitorigin_branch}) {
-- 
cgit v1.2.3