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2021-03-30test-tool: don't force full indexLibravatar Derrick Stolee1-1/+12
We will use 'test-tool read-cache --table' to check that a sparse index is written as part of init_repos. Since we will no longer always expand a sparse index into a full index, add an '--expand' parameter that adds a call to ensure_full_index() so we can compare a sparse index directly against a full index, or at least what the in-memory index looks like when expanded in this way. Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-03-30test-read-cache: print cache entries with --tableLibravatar Derrick Stolee1-10/+45
This table is helpful for discovering data in the index to ensure it is being written correctly, especially as we build and test the sparse-index. This table includes an output format similar to 'git ls-tree', but should not be compared to that directly. The biggest reasons are that 'git ls-tree' includes a tree entry for every subdirectory, even those that would not appear as a sparse directory in a sparse-index. Further, 'git ls-tree' does not use a trailing directory separator for its tree rows. This does not print the stat() information for the blobs. That will be added in a future change with another option. The tests that are added in the next few changes care only about the object types and IDs. However, this future need for full index information justifies the need for this test helper over extending a user-facing feature, such as 'git ls-files'. To make the option parsing slightly more robust, wrap the string comparisons in a loop adapted from test-dir-iterator.c. Care must be taken with the final check for the 'cnt' variable. We continue the expectation that the numerical value is the final argument. Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-09-06test-read-cache: drop namelen variableLibravatar Jeff King1-3/+2
Early in the function we set "namelen = strlen(name)" if "name" is non-NULL. Later, we use "namelen" only if "name" is non-NULL. However, it's hard to immediately see this, and it seems to confuse gcc 9.2.1 (with "-flto" interestingly, though all of the involved logic is in inline functions; it also triggers when building with ASan). Let's simplify the code and remove the variable entirely. There's only one use of namelen anyway, so we can just call strlen() then. It's true this is in a loop, so we might execute strlen() more often. But: - this is test code that only ever loops twice in our test suite (we do loop 1000 times in a t/perf test, but without using this option). - a decent compiler ought to be able to hoist that out of the loop anyway (though I wouldn't count on gcc 9.2.1 doing so!) Reported-by: Stephan Beyer <s-beyer@gmx.net> Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-08fsmonitor: demonstrate that it is not refreshed after discard_index()Libravatar Johannes Schindelin1-1/+23
This one is tricky. When `core.fsmonitor` is set, a `refresh_index()` will not perform a full scan of files that might be modified, but will query the fsmonitor and refresh only the ones that have been actually touched. Due to implementation details, the fsmonitor is queried in `refresh_cache_ent()`, but of course it only has to be queried once, so we set a flag when we did that. But when the index was discarded, we did not re-set that flag. So far, this is only covered by our test suite when running with GIT_TEST_FSMONITOR=$PWD/t7519/fsmonitor-all, and only due to the way the built-in stash interacts with the recursive merge machinery. Let's introduce a straight-forward regression test for this. We simply extend the "read & discard index" loop in `test-tool read-cache` to optionally refresh the index, report on a given file's status, and then modify that file. Due to the bug described above, only the first refresh will actually query the fsmonitor; subsequent loop iterations will not. This problem was reported by Ævar Arnfjörð Bjarmason. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-03-27t/helper: merge test-read-cache into test-toolLibravatar Nguyễn Thái Ngọc Duy1-1/+2
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-16test-read-cache: setup git dirLibravatar René Scharfe1-0/+1
b1ef400e (setup_git_env: avoid blind fall-back to ".git") made programs that tried to access a repository without initializing properly die with a diagnostic message. One offender is test-read-cache, which is used in p0002. Fix it by calling setup_git_directory() before accessing the index. Signed-off-by: Rene Scharfe <l.s.r@web.de> Reviewed-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-07-06Merge branch 'jk/common-main-2.8' into jk/common-mainLibravatar Junio C Hamano1-1/+1
* jk/common-main-2.8: mingw: declare main()'s argv as const common-main: call git_setup_gettext() common-main: call restore_sigpipe_to_default() common-main: call sanitize_stdfds() common-main: call git_extract_argv0_path() add an extra level of indirection to main()
2016-04-15test helpers: move test-* to t/helper/ subdirectoryLibravatar Nguyễn Thái Ngọc Duy1-0/+13
This keeps top dir a bit less crowded. And because these programs are for testing purposes, it makes sense that they stay somewhere in t/ Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>