Re: [PATCH] revert.c: Allow to specify -x via git-config

[John Keeping <john@keeping.me.uk>]

On Tue, Feb 18, 2014 at 07:56:20AM +0100, Guido Günther wrote:
> Without this when maintaining stable branches it's easy to forget to use
> -x to track where a patch was cherry-picked from.
> 
> Signed-off-by: Guido Günther <agx@sigxcpu.org>
> ---
>  Documentation/git-cherry-pick.txt |  8 ++++++++
>  builtin/revert.c                  | 10 ++++++++++
>  2 files changed, 18 insertions(+)
> 
> diff --git a/Documentation/git-cherry-pick.txt b/Documentation/git-cherry-pick.txt
> index c205d23..c35064f 100644
> --- a/Documentation/git-cherry-pick.txt
> +++ b/Documentation/git-cherry-pick.txt
> @@ -215,6 +215,14 @@ the working tree.
>  spending extra time to avoid mistakes based on incorrectly matching
>  context lines.
>  
> +CONFIGURATION
> +-------------
> +
> +See linkgit:git-config[1] for core variables.
> +
> +cherrypick.record-origin::

For consistency, this should be "cherrypick.recordOrigin", although I
wonder if we should permit "cherry-pick" here so as to keep the config
section the same as the name of the command.

I think this should also be added to git-config(1)

> +	Default for the `-x` option. Defaults to `false`.
> +
>  SEE ALSO
>  --------
>  linkgit:git-revert[1]
> diff --git a/builtin/revert.c b/builtin/revert.c
> index 87659c9..df9718f 100644
> --- a/builtin/revert.c
> +++ b/builtin/revert.c
> @@ -196,6 +196,15 @@ int cmd_revert(int argc, const char **argv, const char *prefix)
>  	return res;
>  }
>  
> +static int git_cherry_pick_config(const char *var, const char *value, void *cb)
> +{
> +	struct replay_opts *opts = cb;
> +
> +	if (!strcmp(var, "cherrypick.record-origin"))
> +		opts->record_origin = git_config_bool (var, value);
> +	return 0;

If you change this to:

    return git_default_config(var, value, cb);

then the code below won't end up walking the config twice.

> +}
> +
>  int cmd_cherry_pick(int argc, const char **argv, const char *prefix)
>  {
>  	struct replay_opts opts;
> @@ -204,6 +213,7 @@ int cmd_cherry_pick(int argc, const char **argv, const char *prefix)
>  	memset(&opts, 0, sizeof(opts));
>  	opts.action = REPLAY_PICK;
>  	git_config(git_default_config, NULL);
> +	git_config(git_cherry_pick_config, &opts);
>  	parse_args(argc, argv, &opts);
>  	res = sequencer_pick_revisions(&opts);
>  	if (res < 0)