Re: [PATCH 2/3] stripspace: respect repository config

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Junio C Hamano <gitster@xxxxxxxxx> writes:

> From: Johannes Schindelin <johannes.schindelin@xxxxxx>
>
> The way "git stripspace" reads the configuration was not quite
> correct, in that it forgot to probe for a possibly existing
> repository (note: stripspace is designed to be usable outside the
> repository as well) before doing so.  Due to this, .git/config was
> read only when the command was run from the top-level of the working
> tree.  
>
> A recent change b9605bc4f2 ("config: only read .git/config from
> configured repos", 2016-09-12) stopped reading the repository-local
> configuration file ".git/config" unless the repository discovery
> process is done, and ".git/config" is no longer read even when run
> from the top-level, which exposed the bug even more.

The above two paragraphs are rewritten from the original to explain
how this seemed to work (by accident) and its breakage surfaced in
"rebase -i" after b9605bc4f2 ("config: only read .git/config from
configured repos", 2016-09-12) better.  The use of stripspace in
"rebase-i" was done after cd_to_toplevel and it happened to work
before that commit.

Otherwise there is no change from the original.

> When rebasing interactively with a commentChar defined in the
> current repository's config, the help text at the bottom of the edit
> script potentially used an incorrect comment character. This was not
> only funny-looking, but also resulted in tons of warnings like this
> one:
>
> 	Warning: the command isn't recognized in the following line
> 	 - #
>
> Signed-off-by: Johannes Schindelin <johannes.schindelin@xxxxxx>
> Signed-off-by: Junio C Hamano <gitster@xxxxxxxxx>
> ---
>  builtin/stripspace.c  | 4 +++-
>  t/t0030-stripspace.sh | 2 +-
>  2 files changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/builtin/stripspace.c b/builtin/stripspace.c
> index 15e716ef43..1e62a008cb 100644
> --- a/builtin/stripspace.c
> +++ b/builtin/stripspace.c
> @@ -44,8 +44,10 @@ int cmd_stripspace(int argc, const char **argv, const char *prefix)
>  	if (argc)
>  		usage_with_options(stripspace_usage, options);
>  
> -	if (mode == STRIP_COMMENTS || mode == COMMENT_LINES)
> +	if (mode == STRIP_COMMENTS || mode == COMMENT_LINES) {
> +		setup_git_directory_gently(NULL);
>  		git_config(git_default_config, NULL);
> +	}
>  
>  	if (strbuf_read(&buf, 0, 1024) < 0)
>  		die_errno("could not read the input");
> diff --git a/t/t0030-stripspace.sh b/t/t0030-stripspace.sh
> index c1f6411eb2..bbf3e39e3d 100755
> --- a/t/t0030-stripspace.sh
> +++ b/t/t0030-stripspace.sh
> @@ -432,7 +432,7 @@ test_expect_success '-c with changed comment char' '
>  	test_cmp expect actual
>  '
>  
> -test_expect_failure '-c with comment char defined in .git/config' '
> +test_expect_success '-c with comment char defined in .git/config' '
>  	test_config core.commentchar = &&
>  	printf "= foo\n" >expect &&
>  	printf "foo" | (



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