From: Eric Wong <e@80x24.org>
Date: Wed, 22 May 2019 02:14:00 +0000 (+0000)
Subject: git: workaround old git-rev-parse(1) (--git-path)
X-Git-Tag: v1.2.0~266
X-Git-Url: http://www.git.stargrave.org/?p=public-inbox.git;a=commitdiff_plain;h=97b45ccc7ae2f721744bd7ee1f1cbaab9e6df790

git: workaround old git-rev-parse(1) (--git-path)

git < 2.5.0 was missing --git-path support.  This means any
users relying on some rare environment variables will need git
2.5.0+
---

diff --git a/lib/PublicInbox/Git.pm b/lib/PublicInbox/Git.pm
index 236f70c1..a4daaa48 100644
--- a/lib/PublicInbox/Git.pm
+++ b/lib/PublicInbox/Git.pm
@@ -59,6 +59,11 @@ sub git_path ($$) {
 	$self->{-git_path}->{$path} ||= do {
 		local $/ = "\n";
 		chomp(my $str = $self->qx(qw(rev-parse --git-path), $path));
+
+		# git prior to 2.5.0 did not understand --git-path
+		if ($str eq "--git-path\n$path") {
+			$str = "$self->{git_dir}/$path";
+		}
 		$str;
 	};
 }