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| author | Shuqi Liang <cheskaqiqi@gmail.com> | 2023-05-09 15:42:41 -0400 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2023-05-09 14:26:36 -0700 |
| commit | 8c30be9176784b5e4fbfc2ca6e8275c13cbf6e4a (patch) | |
| tree | c955b48e5eb93a80a7f29b3b24b1c5ce44968cac /builtin/diff-files.c | |
| parent | 0aba1a989c7c577dc1b0b096a12615b7a6747c54 (diff) | |
| download | git-8c30be9176784b5e4fbfc2ca6e8275c13cbf6e4a.tar.gz | |
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 <cheskaqiqi@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'builtin/diff-files.c')
| -rw-r--r-- | builtin/diff-files.c | 4 |
1 files changed, 4 insertions, 0 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; |