Re: [PATCH 17/20] sparse-checkout: disable sparse-index

On 3/9/2021 3:20 PM, Derrick Stolee wrote:

On 2/27/2021 7:32 AM, SZEDER Gábor wrote:

quoted

On Tue, Feb 23, 2021 at 08:14:26PM +0000, Derrick Stolee via GitGitGadget wrote:

quoted

+test_expect_success 'sparse-index enabled and disabled' '
+	git -C repo sparse-checkout init --cone --sparse-index &&
+	test_cmp_config -C repo true extensions.sparseIndex &&
+	test-tool -C repo read-cache --table >cache &&
+	grep " tree " cache &&
+
+	git -C repo sparse-checkout disable &&
+	test-tool -C repo read-cache --table >cache &&
+	! grep " tree " cache &&
+	git -C repo config --list >config &&
+	! grep extensions.sparseindex config
+'

This test passes with GIT_TEST_SPLIT_INDEX=1 at the moment, because,
unfortunately, GIT_TEST_SPLIT_INDEX has been broken for the past two
years.  However, if I run it with my WIP fixes for that issue [1],
then it will fail:

  +git -C repo sparse-checkout init --cone --sparse-index
  +test_cmp_config -C repo true extensions.sparseIndex
  +test-tool -C repo read-cache --table
  +grep  tree  cache
  error: last command exited with $?=1
  not ok 16 - sparse-index enabled and disabled

https://travis-ci.com/github/szeder/git-cooking-topics-for-travis-ci/jobs/486702444#L2594

[1] Try to run it with:

      https://github.com/szeder/git split-index-fixes

    The code is, I believe, close to final, the commit messages,
    however, are far from being finished.

I'll keep that in mind. I should have added a variable
that disables GIT_TEST_SPLIT_INDEX for this test script,
since the sparse-index is (currently) incompatible with
the split-index. I bet that the test is failing because
it isn't actually writing the sparse-directory entry due
to that short-circuit check.

The next version will include GIT_TEST_SPLIT_INDEX=0 at
the start and that will make it work with your branch.

Thanks,
-Stolee