Re: [PATCH 2/3] test-lib-functions.sh: teach test_commit -C <dir>

> Specifically when setting up submodule tests, it comes in handy if
> we can create commits in repositories that are not at the root of
> the tested trash dir. Add "-C <dir>" similar to gits -C parameter
> that will perform the operation in the given directory.
>
> Signed-off-by: Stefan Beller <sbeller@google.com>
> ---

>  t/test-lib-functions.sh | 20 +++++++++++++++-----
>  1 file changed, 15 insertions(+), 5 deletions(-)
>
> diff --git a/t/test-lib-functions.sh b/t/test-lib-functions.sh
> index fdaeb3a96b..579e812506 100644
> --- a/t/test-lib-functions.sh
> +++ b/t/test-lib-functions.sh
> @@ -157,16 +157,21 @@ debug () {
>  	 GIT_TEST_GDB=1 "$@"
>  }
>  
> -# Call test_commit with the arguments "<message> [<file> [<contents> [<tag>]]]"
> +# Call test_commit with the arguments
> +# [-C <directory>] <message> [<file> [<contents> [<tag>]]]"
>  #
>  # This will commit a file with the given contents and the given commit
>  # message, and tag the resulting commit with the given tag name.
>  #
>  # <file>, <contents>, and <tag> all default to <message>.
> +#
> +# If the first argument is "-C", the second argument is used as a path for
> +# the git invocations.
>  
>  test_commit () {
>  	notick= &&
>  	signoff= &&
> +	indir= &&
>  	while test $# != 0
>  	do
>  		case "$1" in
> @@ -176,21 +181,26 @@ test_commit () {
>  		--signoff)
>  			signoff="$1"
>  			;;
> +		-C)
> +			indir="$2"
> +			shift
> +			;;
>  		*)
>  			break
>  			;;
>  		esac
>  		shift
>  	done &&
> +	indir=${indir:+"$indir"/} &&
>  	file=${2:-"$1.t"} &&
> -	echo "${3-$1}" > "$file" &&
> -	git add "$file" &&
> +	echo "${3-$1}" > "$indir$file" &&
> +	git ${indir:+ -C "$indir"} add "$file" &&
>  	if test -z "$notick"
>  	then
>  		test_tick
>  	fi &&
> -	git commit $signoff -m "$1" &&
> -	git tag "${4:-$1}"
> +	git ${indir:+ -C "$indir"} commit $signoff -m "$1" &&
> +	git ${indir:+ -C "$indir"} tag "${4:-$1}"
>  }
>  
>  # Call test_merge with the arguments "<message> <commit>", where <commit>