On Tue, Feb 15, 2022 at 2:16 PM Patrick Marlier
<patrick.marlier@xxxxxxxxx> wrote:
Could I suggest a bit longer commit message? Perhaps:
"""
clean: avoid traversing into untracked dirs when unnecessary
When deleting all untracked and ignored files and any nested
repositories (such as with `git clean -ffdx`), we do not need to recurse
into an untracked directory to see if any of the entries under it are
ignored or a nested repository. Special case this condition to avoid
unnecessary recursion.
"""
> ---
> builtin/clean.c | 4 +++-
> t/t7300-clean.sh | 24 ++++++++++++++++++++++++
> 2 files changed, 27 insertions(+), 1 deletion(-)
>
> diff --git a/builtin/clean.c b/builtin/clean.c
> index 18b37e3fd9..1b1454d052 100644
> --- a/builtin/clean.c
> +++ b/builtin/clean.c
> @@ -978,7 +978,9 @@ int cmd_clean(int argc, const char **argv, const char *prefix)
> remove_directories = 1;
> }
>
> - if (remove_directories && !ignored_only) {
> + if (remove_directories && ignored && !exclude_list.nr && force > 1)
> + ; /* No need to recurse to look for ignored files */
> + else if (remove_directories && !ignored_only) {
> /*
> * We need to know about ignored files too:
> *
> diff --git a/t/t7300-clean.sh b/t/t7300-clean.sh
> index 0399701e62..684eba914b 100755
> --- a/t/t7300-clean.sh
> +++ b/t/t7300-clean.sh
> @@ -788,4 +788,28 @@ test_expect_success 'traverse into directories that may have ignored entries' '
> )
> '
>
> +test_expect_success 'avoid traversing into untracked directories' '
> + test_when_finished rm -f output error trace.* &&
> + test_create_repo avoid-traversing-untracked-hierarchy &&
I think you may have been copying from an example earlier in the file
that I like wrote. As someone else recently pointed out to me,
t/test-lib-functions.sh points out that test_create_repo is deprecated
and we should just use "git init <dirname>" instead.
> + (
> + cd avoid-traversing-untracked-hierarchy &&
> +
> + mkdir -p untracked/subdir/with/b &&
> + mkdir -p untracked/subdir/with/a &&
> + >untracked/subdir/with/a/random-file.txt &&
> +
> + GIT_TRACE2_PERF="$TRASH_DIRECTORY/trace.output" \
> + git clean -ffdx
> + ) &&
> +
> + # Make sure we only visited into the top-level directory, and did
> + # not traverse into the "untracked" subdirectory since it was excluded
> + grep data.*read_directo.*directories-visited trace.output |
> + cut -d "|" -f 9 >trace.relevant &&
> + cat >trace.expect <<-EOF &&
> + ..directories-visited:1
> + EOF
> + test_cmp trace.expect trace.relevant
> +'
> +
> test_done
> --
> 2.35.1
Looks good, other than those minor items. Thanks for working on this!
