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gitweb: add If-Modified-Since handling to git_snapshot().

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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 request is a commit.
Requests for snapshots of trees, 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>
This commit is contained in:
W. Trevor King
2012-03-29 08:45:49 -04:00
committed by Junio C Hamano
parent b7d565ea4c
commit 8745db63ca
2 changed files with 43 additions and 0 deletions
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33
t/t9501-gitweb-standalone-http-status.sh
View File

@@ -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.headers &&
grep "Last-modified: Thu, 7 Apr 2005 22:14:13 +0000" gitweb.headers
'
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" &&
test_when_finished "unset HTTP_IF_MODIFIED_SINCE" &&
gitweb_run "p=.git;a=snapshot;h=master;sf=tgz" &&
grep "Status: 200 OK" gitweb.headers
'
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" &&
test_when_finished "unset HTTP_IF_MODIFIED_SINCE" &&
gitweb_run "p=.git;a=snapshot;h=master;sf=tgz" &&
grep "Status: 304 Not Modified" gitweb.headers
'
test_debug 'cat gitweb.headers'
test_expect_success 'modification: tree snapshot' '
ID=`git rev-parse --verify HEAD^{tree}` &&
export HTTP_IF_MODIFIED_SINCE="Wed, 6 Apr 2005 22:14:13 +0000" &&
test_when_finished "unset HTTP_IF_MODIFIED_SINCE" &&
gitweb_run "p=.git;a=snapshot;h=$ID;sf=tgz" &&
grep "Status: 200 OK" gitweb.headers &&
! grep -i "last-modified" gitweb.headers
'
test_debug 'cat gitweb.headers'
# ----------------------------------------------------------------------
# load checking