archive: implement configurable tar filters
It's common to pipe the tar output produce by "git archive"
through gzip or some other compressor. Locally, this can
easily be done by using a shell pipe. When requesting a
remote archive, though, it cannot be done through the
upload-archive interface.
This patch allows configurable tar filters, so that one
could define a "tar.gz" format that automatically pipes tar
output through gzip.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/t/t5000-tar-tree.sh b/t/t5000-tar-tree.sh
index cff1b3e..1f90692 100755
--- a/t/t5000-tar-tree.sh
+++ b/t/t5000-tar-tree.sh
@@ -252,4 +252,47 @@
test -f h/olde-a/bin/sh
'
+test_expect_success 'setup tar filters' '
+ git config tar.tar.foo.command "tr ab ba" &&
+ git config tar.bar.command "tr ab ba"
+'
+
+test_expect_success 'archive --list mentions user filter' '
+ git archive --list >output &&
+ grep "^tar\.foo\$" output &&
+ grep "^bar\$" output
+'
+
+test_expect_success 'archive --list shows remote user filters' '
+ git archive --list --remote=. >output &&
+ grep "^tar\.foo\$" output &&
+ grep "^bar\$" output
+'
+
+test_expect_success 'invoke tar filter by format' '
+ git archive --format=tar.foo HEAD >config.tar.foo &&
+ tr ab ba <config.tar.foo >config.tar &&
+ test_cmp b.tar config.tar &&
+ git archive --format=bar HEAD >config.bar &&
+ tr ab ba <config.bar >config.tar &&
+ test_cmp b.tar config.tar
+'
+
+test_expect_success 'invoke tar filter by extension' '
+ git archive -o config-implicit.tar.foo HEAD &&
+ test_cmp config.tar.foo config-implicit.tar.foo &&
+ git archive -o config-implicit.bar HEAD &&
+ test_cmp config.tar.foo config-implicit.bar
+'
+
+test_expect_success 'default output format remains tar' '
+ git archive -o config-implicit.baz HEAD &&
+ test_cmp b.tar config-implicit.baz
+'
+
+test_expect_success 'extension matching requires dot' '
+ git archive -o config-implicittar.foo HEAD &&
+ test_cmp b.tar config-implicittar.foo
+'
+
test_done
