Subject: Re: [PATCH 2/3] p7300: added performance tests for clean

From: Torsten Bögershausen <[email-masked]>
Date: Mon, 06 Apr 2015 22:40:09 +0200

On 2015-04-06 13.48, Erik Elfström wrote:
> Signed-off-by: Erik Elfström <[email-masked]>
> ---
>  t/perf/p7300-clean.sh | 37 +++++++++++++++++++++++++++++++++++++
>  1 file changed, 37 insertions(+)
>  create mode 100755 t/perf/p7300-clean.sh
> 
> diff --git a/t/perf/p7300-clean.sh b/t/perf/p7300-clean.sh
> new file mode 100755
> index 0000000..3f56fb2
> --- /dev/null
> +++ b/t/perf/p7300-clean.sh
> @@ -0,0 +1,37 @@
> +#!/bin/sh
> +
> +test_description="Test git-clean performance"
> +
> +. ./perf-lib.sh
> +
> +test_perf_large_repo
> +test_checkout_worktree
> +
> +test_expect_success 'setup untracked directory with many sub dirs' '
> +	rm -rf 500_sub_dirs 50000_sub_dirs clean_test_dir &&
> +	mkdir 500_sub_dirs 50000_sub_dirs clean_test_dir &&
> +	for i in $(seq 1 500)
I think "seq" is bash-only, and can be easily replaced by "test_seq" 

> +	do
> +		mkdir 500_sub_dirs/dir$i
> +	done &&
> +	for i in $(seq 1 100)
> +	do
> +		cp -r 500_sub_dirs 50000_sub_dirs/dir$i
> +	done
> +'
> +
> +test_perf 'clean many untracked sub dirs, check for nested git' '
> +	rm -rf clean_test_dir/50000_sub_dirs_cpy &&
> +	cp -r 50000_sub_dirs clean_test_dir/50000_sub_dirs_cpy &&
> +	git clean -q -f -d  clean_test_dir/ &&
> +	test 0 = $(ls -A clean_test_dir/ | wc -l)

Is the "ls -A" portable on all systems:
http://pubs.opengroup.org/onlinepubs/009695399/utilities/ls.html

My feeling is that the "emptiness" of a directory can by tested by simply removing it:
> +	git clean -q -f -d  clean_test_dir/ &&
> +	rmdir clean_test_dir
(And similar below)