From 596b2906fdc863fac2a3c86abbdb39416eee1961 Mon Sep 17 00:00:00 2001
From: Joey Hess <joey@gnu.kitenet.net>
Date: Thu, 26 Feb 2009 14:09:26 -0500
Subject: bzr: Add missing rcs_diff. (liw)

---
 IkiWiki/Plugin/bzr.pm | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

(limited to 'IkiWiki')

diff --git a/IkiWiki/Plugin/bzr.pm b/IkiWiki/Plugin/bzr.pm
index 783623dee..883007367 100644
--- a/IkiWiki/Plugin/bzr.pm
+++ b/IkiWiki/Plugin/bzr.pm
@@ -256,7 +256,23 @@ sub rcs_recentchanges ($) {
 }
 
 sub rcs_diff ($) {
-	# TODO
+	my $taintedrev=shift;
+	my ($rev) = $taintedrev =~ /^(\d+(\.\d+)*)$/; # untaint
+
+	my $prevspec = "before:" . $rev;
+	my $revspec = "revno:" . $rev;
+	my @cmdline = ("bzr", "diff", "--old", $config{srcdir},
+		"--new", $config{srcdir},
+		"-r", $prevspec . ".." . $revspec);
+	open (my $out, "@cmdline |");
+
+	my @lines = <$out>;
+	if (wantarray) {
+		return @lines;
+	}
+	else {
+		return join("", @lines);
+	}
 }
 
 sub rcs_getctime ($) {
-- 
cgit v1.2.3