git/t/t5315-pack-objects-compression.sh
Junio C Hamano 8de7eeb54b compression: unify pack.compression configuration parsing
There are three codepaths that use a variable whose name is
pack_compression_level to affect how objects and deltas sent to a
packfile is compressed.  Unlike zlib_compression_level that controls
the loose object compression, however, this variable was static to
each of these codepaths.  Two of them read the pack.compression
configuration variable, using core.compression as the default, and
one of them also allowed overriding it from the command line.

The other codepath in bulk-checkin did not pay any attention to the
configuration.

Unify the configuration parsing to git_default_config(), where we
implement the parsing of core.loosecompression and core.compression
and make the former override the latter, by moving code to parse
pack.compression and also allow core.compression to give default to
this variable.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-11-15 21:16:22 -08:00

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#!/bin/sh
test_description='pack-object compression configuration'
. ./test-lib.sh
# This should be moved to test-lib.sh together with the
# copy in t0021 after both topics have graduated to 'master'.
file_size () {
perl -e 'print -s $ARGV[0]' "$1"
}
test_expect_success setup '
printf "%2000000s" X |
git hash-object -w --stdin >object-name &&
# make sure it resulted in a loose object
ob=$(sed -e "s/\(..\).*/\1/" object-name) &&
ject=$(sed -e "s/..\(.*\)/\1/" object-name) &&
test -f .git/objects/$ob/$ject
'
while read expect config
do
test_expect_success "pack-objects with $config" '
test_when_finished "rm -f pack-*.*" &&
git $config pack-objects pack <object-name &&
sz=$(file_size pack-*.pack) &&
case "$expect" in
small) test "$sz" -le 100000 ;;
large) test "$sz" -ge 100000 ;;
esac
'
done <<\EOF
large -c core.compression=0
small -c core.compression=9
large -c core.compression=0 -c pack.compression=0
large -c core.compression=9 -c pack.compression=0
small -c core.compression=0 -c pack.compression=9
small -c core.compression=9 -c pack.compression=9
large -c pack.compression=0
small -c pack.compression=9
EOF
test_done