[RFCv4 2/3] gitweb: add patches view

[Giuseppe Bilotta <giuseppe.bilotta@gmail.com>]

The only difference between patch and patches view is in the treatement
of single commits: the former only displays a single patch, whereas the
latter displays a patchset leading to the specified commit.
---
 gitweb/gitweb.perl |   20 ++++++++++++++++++--
 1 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl
index 71d5af4..dfc7128 100755
--- a/gitweb/gitweb.perl
+++ b/gitweb/gitweb.perl
@@ -525,6 +525,7 @@ our %actions = (
 	"history" => \&git_history,
 	"log" => \&git_log,
 	"patch" => \&git_patch,
+	"patches" => \&git_patches,
 	"rss" => \&git_rss,
 	"atom" => \&git_atom,
 	"search" => \&git_search,
@@ -5408,6 +5409,9 @@ sub git_blobdiff_plain {
 
 sub git_commitdiff {
 	my $format = shift || 'html';
+	# for patch view: should we limit ourselves to a single patch
+	# if only a single commit is passed?
+	my $single_patch = shift && 1;
 
 	my $patch_max;
 	if ($format eq 'patch') {
@@ -5524,7 +5528,15 @@ sub git_commitdiff {
 			}
 			push @commit_spec, '-n', "$hash_parent..$hash";
 		} else {
-			push @commit_spec, '-1', '--root', $hash;
+			if ($single_patch) {
+				push @commit_spec, '-1';
+			} else {
+				if ($patch_max > 0) {
+					push @commit_spec, "-$patch_max";
+				}
+				push @commit_spec, "-n";
+			}
+			push @commit_spec, '--root', $hash;
 		}
 		open $fd, "-|", git_cmd(), "format-patch", '--encoding=utf8',
 			'--stdout', @commit_spec
@@ -5620,7 +5632,11 @@ sub git_commitdiff_plain {
 
 # format-patch-style patches
 sub git_patch {
-	git_commitdiff('patch');
+	git_commitdiff('patch', 1);
+}
+
+sub git_patches {
+	git_commitdiff('patch', 0);
 }
 
 sub git_history {
-- 
1.5.6.5