kernel/git - git - PowerEL Git System

Author	SHA1	Message	Date
Taylor Blau	24f951a492	t/helper/test-read-graph.c: prepare repo settings The read-graph test-tool is used by a number of the commit-graph test to assert various properties about a commit-graph. Previously, this program never ran 'prepare_repo_settings()'. There was no need to do so, since none of the commit-graph machinery is affected by the repo settings. In the next patch, the commit-graph machinery's behavior will become dependent on the repo settings, and so loading them before running the rest of the test tool is critical. As such, teach the test tool to call 'prepare_repo_settings()'. Signed-off-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	5 years ago
Taylor Blau	2fa05f31bd	t/helper/test-read-graph.c: support commit-graph chains In `61df89c8e5` (commit-graph: don't early exit(1) on e.g. "git status", 2019-03-25), the former 'load_commit_graph_one' was refactored into 'open_commit_graph' and 'load_commit_graph_one_fd_st' as a means of avoiding an early-exit from non-library code. However, 'load_commit_graph_one' does not support commit-graph chains, and hence the 'read-graph' test tool does not work with them. Replace 'load_commit_graph_one' with 'read_commit_graph_one' in order to support commit-graph chains. In the spirit of `61df89c8e5`, 'read_commit_graph_one' does not ever 'die()', making it a suitable replacement here. Signed-off-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	5 years ago
Garima Singh	a759bfa9ee	t4216: add end to end tests for git log with Bloom filters These tests exercises writing commit graph with Bloom filters and exercises 'git log -- path' with all the applicable options. They check that the output is the same with and without Bloom filters, confirm Bloom filters were used by checking if trace2 statistics were logged correctly. Also confirms cases where Bloom filters are not used: 1. Multiple path specs, 2. --walk-reflogs (see patch titled 'revision.c: use Bloom filters...' for details, 3. If the latest commit graph does not have Bloom filters Signed-off-by: Garima Singh <garima.singh@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	5 years ago
Taylor Blau	a7df60cac8	commit-graph.h: use odb in 'load_commit_graph_one_fd_st' Apply a similar treatment as in the previous patch to pass a 'struct object_directory *' through the 'load_commit_graph_one_fd_st' initializer, too. This prevents a potential bug where a pointer comparison is made to a NULL 'g->odb', which would cause the commit-graph machinery to think that a pair of commit-graphs belonged to different alternates when in fact they do not (i.e., in the case of no '--object-dir'). Signed-off-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	5 years ago
Taylor Blau	ad2dd5bb63	commit-graph.c: remove path normalization, comparison As of the previous patch, all calls to 'commit-graph.c' functions which perform path normalization (for e.g., 'get_commit_graph_filename()') are of the form 'ctx->odb->path', which is always in normalized form. Now that there are no callers passing non-normalized paths to these functions, ensure that future callers are bound by the same restrictions by making these functions take a 'struct object_directory ' instead of a 'const char '. To match, replace all calls with arguments of the form 'ctx->odb->path' with 'ctx->odb' To recover the path, functions that perform path manipulation simply use 'odb->path'. Further, avoid string comparisons with arguments of the form 'odb->path', and instead prefer raw pointer comparisons, which accomplish the same effect, but are far less brittle. This has a pleasant side-effect of making these functions much more robust to paths that cannot be normalized by 'normalize_path_copy()', i.e., because they are outside of the current working directory. For example, prior to this patch, Valgrind reports that the following uninitialized memory read [1]: $ ( cd t && GIT_DIR=../.git valgrind git rev-parse HEAD^ ) because 'normalize_path_copy()' can't normalize '../.git' (since it's relative to but above of the current working directory) [2]. By using a 'struct object_directory *' directly, 'get_commit_graph_filename()' does not need to normalize, because all paths are relative to the current working directory since they are always read from the '->path' of an object directory. [1]: https://lore.kernel.org/git/20191027042116.GA5801@sigill.intra.peff.net. [2]: The bug here is that 'get_commit_graph_filename()' returns the result of 'normalize_path_copy()' without checking the return value. Signed-off-by: Taylor Blau <me@ttaylorr.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	5 years ago
Derrick Stolee	4bd0593e0f	test-tool: use 'read-graph' helper The 'git commit-graph read' subcommand is used in test scripts to check that the commit-graph contents match the expected data. Mostly, this helps check the header information and the list of chunks. Users do not need this information, so move the functionality to a test helper. Reported-by: Bryan Turner <bturner@atlassian.com> Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	5 years ago