[PATCH 17/22] searchidx: skip filenames on "diff --git ..."

[Eric Wong <e@yhbt.net>]

We already capture filenames on the lines beginning
with "---" and "+++", so it's redundant work to capture
filenames from "diff --git ..." lines.
---
 lib/PublicInbox/SearchIdx.pm | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/lib/PublicInbox/SearchIdx.pm b/lib/PublicInbox/SearchIdx.pm
index cb554912..6ade147f 100644
--- a/lib/PublicInbox/SearchIdx.pm
+++ b/lib/PublicInbox/SearchIdx.pm
@@ -209,12 +209,8 @@ sub index_diff ($$$) {
 			index_diff_inc($self, $_, 'XDFCTX', $xnq);
 		} elsif (/^-- $/) { # email signature begins
 			$in_diff = undef;
-		} elsif (m!^diff --git ("?a/.+) ("?b/.+)\z!) {
-			my ($fa, $fb) = ($1, $2);
-			my $fn = (split('/', git_unquote($fa), 2))[1];
-			$seen{$fn}++ or index_diff_inc($self, $fn, 'XDFN', $xnq);
-			$fn = (split('/', git_unquote($fb), 2))[1];
-			$seen{$fn}++ or index_diff_inc($self, $fn, 'XDFN', $xnq);
+		} elsif (m!^diff --git "?[^/]+/.+ "?[^/]+/.+\z!) {
+			# wait until "---" and "+++" to capture filenames
 			$in_diff = 1;
 		# traditional diff:
 		} elsif (m/^diff -(.+) (\S+) (\S+)$/) {