From 0aba1a989c7c577dc1b0b096a12615b7a6747c54 Mon Sep 17 00:00:00 2001 From: Shuqi Liang Date: Tue, 9 May 2023 15:42:40 -0400 Subject: t1092: add tests for `git diff-files` Before integrating the 'git diff-files' builtin with the sparse index feature, add tests to t1092-sparse-checkout-compatibility.sh to ensure it currently works with sparse-checkout and will still work with sparse index after that integration. When adding tests against a sparse-checkout definition, we test two modes: all changes are within the sparse-checkout cone and some changes are outside the sparse-checkout cone. In order to have staged changes outside of the sparse-checkout cone, make a directory called 'folder1' and copy `a` into 'folder1/a'. 'folder1/a' is identical to `a` in the base commit. These make 'folder1/a' in the index, while leaving it outside of the sparse-checkout definition. Change content inside 'folder1/a' in order to test 'folder1/a' being present on-disk with modifications. Signed-off-by: Shuqi Liang Signed-off-by: Junio C Hamano --- t/t1092-sparse-checkout-compatibility.sh | 39 ++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) diff --git a/t/t1092-sparse-checkout-compatibility.sh b/t/t1092-sparse-checkout-compatibility.sh index 0c784813f1..b06b522030 100755 --- a/t/t1092-sparse-checkout-compatibility.sh +++ b/t/t1092-sparse-checkout-compatibility.sh @@ -2108,4 +2108,43 @@ test_expect_success 'sparse-index is not expanded: write-tree' ' ensure_not_expanded write-tree ' +test_expect_success 'diff-files with pathspec inside sparse definition' ' + init_repos && + + write_script edit-contents <<-\EOF && + echo text >>"$1" + EOF + + run_on_all ../edit-contents deep/a && + + test_all_match git diff-files && + + test_all_match git diff-files -- deep/a && + + # test wildcard + test_all_match git diff-files -- "deep/*" +' + +test_expect_success 'diff-files with pathspec outside sparse definition' ' + init_repos && + + test_sparse_match git diff-files -- folder2/a && + + write_script edit-contents <<-\EOF && + echo text >>"$1" + EOF + + # The directory "folder1" is outside the cone of interest + # and will not exist in the sparse checkout repositories. + # Create it as needed, add file "folder1/a" there with + # contents that is different from the staged version. + run_on_all mkdir -p folder1 && + run_on_all cp a folder1/a && + + run_on_all ../edit-contents folder1/a && + test_all_match git diff-files && + test_all_match git diff-files -- folder1/a && + test_all_match git diff-files -- "folder*/a" +' + test_done -- cgit v1.2.1 From 8c30be9176784b5e4fbfc2ca6e8275c13cbf6e4a Mon Sep 17 00:00:00 2001 From: Shuqi Liang Date: Tue, 9 May 2023 15:42:41 -0400 Subject: diff-files: integrate with sparse index Remove full index requirement for `git diff-files`. Refactor the ensure_expanded and ensure_not_expanded functions by introducing a common helper function, ensure_index_state. Add test to ensure the index is no expanded in `git diff-files`. The `p2000` tests demonstrate a ~96% execution time reduction for 'git diff-files' and a ~97% execution time reduction for 'git diff-files' for a file using a sparse index: Test before after ----------------------------------------------------------------------- 2000.94: git diff-files (full-v3) 0.09 0.08 -11.1% 2000.95: git diff-files (full-v4) 0.09 0.09 +0.0% 2000.96: git diff-files (sparse-v3) 0.52 0.02 -96.2% 2000.97: git diff-files (sparse-v4) 0.51 0.02 -96.1% 2000.98: git diff-files -- f2/f4/a (full-v3) 0.06 0.07 +16.7% 2000.99: git diff-files -- f2/f4/a (full-v4) 0.08 0.08 +0.0% 2000.100: git diff-files -- f2/f4/a (sparse-v3) 0.46 0.01 -97.8% 2000.101: git diff-files -- f2/f4/a (sparse-v4) 0.51 0.02 -96.1% Signed-off-by: Shuqi Liang Signed-off-by: Junio C Hamano --- builtin/diff-files.c | 4 ++++ t/perf/p2000-sparse-operations.sh | 2 ++ t/t1092-sparse-checkout-compatibility.sh | 27 +++++++++++++++++++++++++-- 3 files changed, 31 insertions(+), 2 deletions(-) diff --git a/builtin/diff-files.c b/builtin/diff-files.c index dc991f753b..360464e6ef 100644 --- a/builtin/diff-files.c +++ b/builtin/diff-files.c @@ -27,6 +27,10 @@ int cmd_diff_files(int argc, const char **argv, const char *prefix) usage(diff_files_usage); git_config(git_diff_basic_config, NULL); /* no "diff" UI options */ + + prepare_repo_settings(the_repository); + the_repository->settings.command_requires_full_index = 0; + repo_init_revisions(the_repository, &rev, prefix); rev.abbrev = 0; diff --git a/t/perf/p2000-sparse-operations.sh b/t/perf/p2000-sparse-operations.sh index 60d1de0662..901cc493ef 100755 --- a/t/perf/p2000-sparse-operations.sh +++ b/t/perf/p2000-sparse-operations.sh @@ -129,5 +129,7 @@ test_perf_on_all git grep --cached bogus -- "f2/f1/f1/*" test_perf_on_all git write-tree test_perf_on_all git describe --dirty test_perf_on_all 'echo >>new && git describe --dirty' +test_perf_on_all git diff-files +test_perf_on_all git diff-files -- $SPARSE_CONE/a test_done diff --git a/t/t1092-sparse-checkout-compatibility.sh b/t/t1092-sparse-checkout-compatibility.sh index b06b522030..e58bfbfcb4 100755 --- a/t/t1092-sparse-checkout-compatibility.sh +++ b/t/t1092-sparse-checkout-compatibility.sh @@ -1377,7 +1377,7 @@ test_expect_success 'index.sparse disabled inline uses full index' ' ! test_region index ensure_full_index trace2.txt ' -ensure_not_expanded () { +run_sparse_index_trace2 () { rm -f trace2.txt && if test -z "$WITHOUT_UNTRACKED_TXT" then @@ -1397,7 +1397,16 @@ ensure_not_expanded () { git -C sparse-index "$@" \ >sparse-index-out \ 2>sparse-index-error || return 1 - fi && + fi +} + +ensure_expanded () { + run_sparse_index_trace2 "$@" && + test_region index ensure_full_index trace2.txt +} + +ensure_not_expanded () { + run_sparse_index_trace2 "$@" && test_region ! index ensure_full_index trace2.txt } @@ -2147,4 +2156,18 @@ test_expect_success 'diff-files with pathspec outside sparse definition' ' test_all_match git diff-files -- "folder*/a" ' +test_expect_success 'sparse index is not expanded: diff-files' ' + init_repos && + + write_script edit-contents <<-\EOF && + echo text >>"$1" + EOF + + run_on_all ../edit-contents deep/a && + + ensure_not_expanded diff-files && + ensure_not_expanded diff-files -- deep/a && + ensure_not_expanded diff-files -- "deep/*" +' + test_done -- cgit v1.2.1