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From: Eric Sunshine <sunshine@sunshineco.com>
To: Denton Liu <liu.denton@gmail.com>
Cc: Git Mailing List <git@vger.kernel.org>,
	Johannes Schindelin <Johannes.Schindelin@gmx.de>,
	David Aguilar <davvid@gmail.com>
Subject: Re: [PATCH 4/5] difftool: make --gui, --tool and --extcmd exclusive
Date: Mon, 22 Apr 2019 03:03:51 -0400	[thread overview]
Message-ID: <CAPig+cQQqLc16=6iO=z6bBDMKD_dnG0ZL=7_onGibfYxoJsN=g@mail.gmail.com> (raw)
In-Reply-To: <c019926b32016369e9f497d8e227107fdf192440.1555880168.git.liu.denton@gmail.com>

On Mon, Apr 22, 2019 at 1:07 AM Denton Liu <liu.denton@gmail.com> wrote:
> In git-difftool, these options specify which tool to ultimately run. As
> a result, they are logically conflicting. Explicitly disallow these
> options from being used together.
>
> Signed-off-by: Denton Liu <liu.denton@gmail.com>
> ---
> diff --git a/builtin/difftool.c b/builtin/difftool.c
> @@ -731,6 +731,15 @@ int cmd_difftool(int argc, const char **argv, const char *prefix)
> +       if (use_gui_tool)
> +               count++;
> +       if (difftool_cmd)
> +               count++;
> +       if (extcmd)
> +               count++;
> +       if (count > 1)
> +               die(_("--gui, --tool and --extcmd are exclusive"));

The more typical way to check this condition in this codebase is:

    if (use_gui_tool + !!difftool_cmd + !!extcmd > 1)
        die(...);

Also, I think you might want: s/exclusive/mutually &/

  reply	other threads:[~2019-04-22  7:04 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-22  5:07 [PATCH 0/5] difftool and mergetool improvements Denton Liu
2019-04-22  5:07 ` [PATCH 1/5] t7610: add mergetool --gui tests Denton Liu
2019-04-22  5:07 ` [PATCH 2/5] mergetool: use get_merge_tool function Denton Liu
2019-04-22  7:07   ` Eric Sunshine
2019-04-22  8:35     ` Denton Liu
2019-04-22  5:07 ` [PATCH 3/5] mergetool: fallback to tool when guitool unavailable Denton Liu
2019-04-22  5:07 ` [PATCH 4/5] difftool: make --gui, --tool and --extcmd exclusive Denton Liu
2019-04-22  7:03   ` Eric Sunshine [this message]
2019-04-22  5:07 ` [PATCH 5/5] difftool: fallback on merge.guitool Denton Liu
2019-04-22 18:18   ` Jeff Hostetler
2019-04-22 18:33     ` Denton Liu
2019-04-23  8:53 ` [PATCH v2 0/5] difftool and mergetool improvements Denton Liu
2019-04-23  8:53   ` [PATCH v2 1/5] t7610: add mergetool --gui tests Denton Liu
2019-04-24  7:07     ` Junio C Hamano
2019-04-23  8:54   ` [PATCH v2 2/5] mergetool: use get_merge_tool_guessed function Denton Liu
2019-04-24  7:27     ` Junio C Hamano
2019-04-23  8:54   ` [PATCH v2 3/5] mergetool: fallback to tool when guitool unavailable Denton Liu
2019-04-23  8:54   ` [PATCH v2 4/5] difftool: make --gui, --tool and --extcmd mutually exclusive Denton Liu
2019-04-23  8:54   ` [PATCH v2 5/5] difftool: fallback on merge.guitool Denton Liu
2019-04-24 22:46   ` [PATCH v3 0/6] difftool and mergetool improvements Denton Liu
2019-04-24 22:46     ` [PATCH v3 1/6] t7610: unsuppress output Denton Liu
2019-04-25  2:31       ` Junio C Hamano
2019-04-24 22:46     ` [PATCH v3 2/6] t7610: add mergetool --gui tests Denton Liu
2019-04-24 22:47     ` [PATCH v3 3/6] mergetool: use get_merge_tool function Denton Liu
2019-04-25  2:36       ` Junio C Hamano
2019-04-24 22:47     ` [PATCH v3 4/6] mergetool: fallback to tool when guitool unavailable Denton Liu
2019-04-25  3:02       ` Junio C Hamano
2019-04-25  5:16         ` Denton Liu
2019-04-24 22:47     ` [PATCH v3 5/6] difftool: make --gui, --tool and --extcmd mutually exclusive Denton Liu
2019-04-24 22:47     ` [PATCH v3 6/6] difftool: fallback on merge.guitool Denton Liu
2019-04-25  3:10       ` Junio C Hamano
2019-04-25  9:54     ` [PATCH v4 0/6] difftool and mergetool improvements Denton Liu
2019-04-25  9:54       ` [PATCH v4 1/6] t7610: unsuppress output Denton Liu
2019-04-25  9:54       ` [PATCH v4 2/6] t7610: add mergetool --gui tests Denton Liu
2019-04-25  9:54       ` [PATCH v4 3/6] mergetool: use get_merge_tool function Denton Liu
2019-04-28 23:52         ` David Aguilar
2019-04-25  9:54       ` [PATCH v4 4/6] mergetool: fallback to tool when guitool unavailable Denton Liu
2019-04-28 23:56         ` David Aguilar
2019-04-25  9:54       ` [PATCH v4 5/6] difftool: make --gui, --tool and --extcmd mutually exclusive Denton Liu
2019-04-25  9:54       ` [PATCH v4 6/6] difftool: fallback on merge.guitool Denton Liu
2019-04-29  6:20       ` [PATCH v5 0/7] difftool and mergetool improvements Denton Liu
2019-04-29  6:21         ` [PATCH v5 1/7] t7610: unsuppress output Denton Liu
2019-04-29  6:21         ` [PATCH v5 2/7] t7610: add mergetool --gui tests Denton Liu
2019-04-29  6:21         ` [PATCH v5 3/7] mergetool: use get_merge_tool function Denton Liu
2019-04-29  6:21         ` [PATCH v5 4/7] mergetool--lib: create gui_mode function Denton Liu
2019-04-29  6:21         ` [PATCH v5 5/7] mergetool: fallback to tool when guitool unavailable Denton Liu
2019-04-29  6:21         ` [PATCH v5 6/7] difftool: make --gui, --tool and --extcmd mutually exclusive Denton Liu
2019-04-29  6:21         ` [PATCH v5 7/7] difftool: fallback on merge.guitool Denton Liu

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