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pack-objects: flip the use of GIT_TEST_PACK_SPARSE

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The environment variable GIT_TEST_PACK_SPARSE was previously used
to allow testing the --sparse option for "git pack-objects" in
the test suite. This allowed interesting cases of "git push" to
also test this algorithm.

Since pack.useSparse is now true by default, we do not need this
variable to _enable_ the --sparse option, but instead to _disable_
it. This flips how we work with the variable a bit.

When checking for the variable, default to a value of -1 for
"unset". If unset, then take the default from the repo settings,
which is currently 1. Then, the --[no-]sparse command-line option
will override either of these settings.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Derrick Stolee
2020-03-20 12:38:10 +00:00
committed by Junio C Hamano
parent de3a864114
commit 2d657ab95f
3 changed files with 6 additions and 5 deletions
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6
t/README
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@@ -386,9 +386,9 @@ GIT_TEST_INDEX_VERSION=<n> exercises the index read/write code path
for the index version specified. Can be set to any valid version
(currently 2, 3, or 4).
GIT_TEST_PACK_SPARSE=<boolean> if enabled will default the pack-objects
builtin to use the sparse object walk. This can still be overridden by
the --no-sparse command-line argument.
GIT_TEST_PACK_SPARSE=<boolean> if disabled will default the pack-objects
builtin to use the non-sparse object walk. This can still be overridden by
the --sparse command-line argument.
GIT_TEST_PRELOAD_INDEX=<boolean> exercises the preload-index code path
by overriding the minimum number of cache entries required per thread.

1
t/t5322-pack-objects-sparse.sh
View File

@@ -107,6 +107,7 @@ test_expect_success 'non-sparse pack-objects' '
# --sparse is enabled by default by pack.useSparse
test_expect_success 'sparse pack-objects' '
GIT_TEST_PACK_SPARSE=-1 &&
git rev-parse \
topic1 \
topic1^{tree} \