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authorW. Trevor King <wking@drexel.edu>2012-03-26 15:14:19 -0400
committerJunio C Hamano <gitster@pobox.com>2012-03-26 12:56:06 -0700
commit84d62947b59e1c49f36b77e2469b39723c503a39 (patch)
tree36e39b1d04a730554153a2419b31e7b12116d6ca
parentd037873021736010d1e9095fe9094f24d57b87c5 (diff)
downloadgit-wk/gitweb-snapshot-use-if-modified-since.tar.gz
gitweb: add If-Modified-Since handling to git_snapshot().wk/gitweb-snapshot-use-if-modified-since
Because snapshots can be large, you can save some bandwidth by supporting caching via If-Modified-Since. This patch adds support for the i-m-s request to git_snapshot() if the requested hash is a commit. Requests for snapshots of tree-ishes, which lack well defined timestamps, are still handled as they were before. Signed-off-by: W Trevor King <wking@drexel.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
-rwxr-xr-xgitweb/gitweb.perl21
-rwxr-xr-xt/t9501-gitweb-standalone-http-status.sh33
2 files changed, 50 insertions, 4 deletions
diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl
index 0fbb709def..976e581f07 100755
--- a/gitweb/gitweb.perl
+++ b/gitweb/gitweb.perl
@@ -7051,6 +7051,10 @@ sub git_snapshot {
my ($name, $prefix) = snapshot_name($project, $hash);
my $filename = "$name$known_snapshot_formats{$format}{'suffix'}";
+
+ my %co = parse_commit($hash);
+ exit_if_unmodified_since($co{'committer_epoch'}) if %co;
+
my $cmd = quote_command(
git_cmd(), 'archive',
"--format=$known_snapshot_formats{$format}{'format'}",
@@ -7060,10 +7064,19 @@ sub git_snapshot {
}
$filename =~ s/(["\\])/\\$1/g;
- print $cgi->header(
- -type => $known_snapshot_formats{$format}{'type'},
- -content_disposition => 'inline; filename="' . $filename . '"',
- -status => '200 OK');
+ if (%co) {
+ my %latest_date = parse_date($co{'committer_epoch'}, $co{'committer_tz'});
+ print $cgi->header(
+ -type => $known_snapshot_formats{$format}{'type'},
+ -content_disposition => 'inline; filename="' . $filename . '"',
+ -last_modified => $latest_date{'rfc2822'},
+ -status => '200 OK');
+ } else {
+ print $cgi->header(
+ -type => $known_snapshot_formats{$format}{'type'},
+ -content_disposition => 'inline; filename="' . $filename . '"',
+ -status => '200 OK');
+ }
open my $fd, "-|", $cmd
or die_error(500, "Execute git-archive failed");
diff --git a/t/t9501-gitweb-standalone-http-status.sh b/t/t9501-gitweb-standalone-http-status.sh
index 537c966799..3b7a00671d 100755
--- a/t/t9501-gitweb-standalone-http-status.sh
+++ b/t/t9501-gitweb-standalone-http-status.sh
@@ -138,6 +138,39 @@ test_expect_success 'modification: feed if-modified-since (unmodified)' '
'
test_debug 'cat gitweb.headers'
+test_expect_success 'modification: snapshot last-modified' '
+ gitweb_run "p=.git;a=snapshot;h=master;sf=tgz" &&
+ grep "Status: 200 OK" gitweb.output &&
+ grep "Last-modified: Thu, 7 Apr 2005 22:14:13 +0000" gitweb.output
+'
+test_debug 'cat gitweb.headers'
+
+test_expect_success 'modification: snapshot if-modified-since (modified)' '
+ export HTTP_IF_MODIFIED_SINCE="Wed, 6 Apr 2005 22:14:13 +0000" &&
+ gitweb_run "p=.git;a=snapshot;h=master;sf=tgz" &&
+ unset HTTP_IF_MODIFIED_SINCE &&
+ grep "Status: 200 OK" gitweb.output
+'
+test_debug 'cat gitweb.headers'
+
+test_expect_success 'modification: snapshot if-modified-since (unmodified)' '
+ export HTTP_IF_MODIFIED_SINCE="Thu, 7 Apr 2005 22:14:13 +0000" &&
+ gitweb_run "p=.git;a=snapshot;h=master;sf=tgz" &&
+ unset HTTP_IF_MODIFIED_SINCE &&
+ grep "Status: 304 Not Modified" gitweb.output
+'
+test_debug 'cat gitweb.headers'
+
+test_expect_success 'modification: tree-ish snapshot' '
+ ID=`git rev-parse --verify HEAD^{tree}` &&
+ export HTTP_IF_MODIFIED_SINCE="Wed, 6 Apr 2005 22:14:13 +0000" &&
+ gitweb_run "p=.git;a=snapshot;h=master;sf=tgz" &&
+ unset HTTP_IF_MODIFIED_SINCE &&
+ grep "Status: 200 OK" gitweb.output &&
+ ! grep "Last-Modified" gitweb.output
+'
+test_debug 'cat gitweb.headers'
+
# ----------------------------------------------------------------------
# load checking