Junio C Hamano wrote:

[...]
> --- a/color.c
> +++ b/color.c
> @@ -307,8 +307,21 @@ int git_config_colorbool(const char *var, const char 
> *value)
>       if (value) {
>               if (!strcasecmp(value, "never"))
>                       return 0;
> -             if (!strcasecmp(value, "always"))
> -                     return var ? GIT_COLOR_AUTO : 1;
> +             if (!strcasecmp(value, "always")) {
> +                     /*
> +                      * Command-line options always respect "always".
> +                      * Likewise for "-c" config on the command-line.
> +                      */
> +                     if (!var ||
> +                         current_config_scope() == CONFIG_SCOPE_CMDLINE)
> +                             return 1;
> +
> +                     /*
> +                      * Otherwise, we're looking at on-disk config;
> +                      * downgrade to auto.
> +                      */
> +                     return GIT_COLOR_AUTO;
> +             }

Yes, this looks good to me.

Should we document this special case treatment of color.* in -c
somewhere?  E.g.

Signed-off-by: Jonathan Nieder <jrnie...@gmail.com>

diff --git i/Documentation/config.txt w/Documentation/config.txt
index 13ce76d48b..d7bd6b169c 100644
--- i/Documentation/config.txt
+++ w/Documentation/config.txt
@@ -1067,11 +1067,15 @@ clean.requireForce::
        -i or -n.   Defaults to true.
 
 color.branch::
-       A boolean to enable/disable color in the output of
-       linkgit:git-branch[1]. May be set to `false` (or `never`) to
-       disable color entirely, `auto` (or `true` or `always`) in which
-       case colors are used only when the output is to a terminal.  If
-       unset, then the value of `color.ui` is used (`auto` by default).
+       When to use color in the output of linkgit:git-branch[1].
+       May be set to `never` (or `false`) to disable color entirely,
+       or `auto` (or `true`) in which case colors are used only when
+       the output is to a terminal.  If unset, then the value of
+       `color.ui` is used (`auto` by default).
++
+The value `always` is a historical synonym for `auto`, except when
+passed on the command line using `-c`, where it is a historical synonym
+for `--color=always`.
 
 color.branch.<slot>::
        Use customized color for branch coloration. `<slot>` is one of
@@ -1084,10 +1088,13 @@ color.diff::
        Whether to use ANSI escape sequences to add color to patches.
        If this is set to `true` or `auto`, linkgit:git-diff[1],
        linkgit:git-log[1], and linkgit:git-show[1] will use color
-       when output is to the terminal. The value `always` is a
-       historical synonym for `auto`.  If unset, then the value of
+       when output is to the terminal. If unset, then the value of
        `color.ui` is used (`auto` by default).
 +
+The value `always` is a historical synonym for `auto`, except when
+passed on the command line using `-c`, where it is a historical
+synonym for `--color=always`.
++
 This does not affect linkgit:git-format-patch[1] or the
 'git-diff-{asterisk}' plumbing commands.  Can be overridden on the
 command line with the `--color[=<when>]` option.
@@ -1118,10 +1125,14 @@ color.decorate.<slot>::
        branches, remote-tracking branches, tags, stash and HEAD, respectively.
 
 color.grep::
-       When set to `always`, always highlight matches.  When `false` (or
+       When to highlight matches using color. When `false` (or
        `never`), never.  When set to `true` or `auto`, use color only
        when the output is written to the terminal.  If unset, then the
        value of `color.ui` is used (`auto` by default).
++
+The value `always` is a historical synonym for `auto`, except when
+passed on the command line using `-c`, where it is a historical synonym
+for `--color=always`.
 
 color.grep.<slot>::
        Use customized color for grep colorization.  `<slot>` specifies which
@@ -1153,9 +1164,11 @@ color.interactive::
        When set to `true` or `auto`, use colors for interactive prompts
        and displays (such as those used by "git-add --interactive" and
        "git-clean --interactive") when the output is to the terminal.
-       When false (or `never`), never show colors. The value `always`
-       is a historical synonym for `auto`.  If unset, then the value of
-       `color.ui` is used (`auto` by default).
+       When false (or `never`), never show colors.
++
+The value `always` is a historical synonym for `auto`, except when
+passed on the command line using `-c`, where it means to use color
+regardless of whether output is to the terminal.
 
 color.interactive.<slot>::
        Use customized color for 'git add --interactive' and 'git clean
@@ -1168,18 +1181,24 @@ color.pager::
        use (default is true).
 
 color.showBranch::
-       A boolean to enable/disable color in the output of
-       linkgit:git-show-branch[1]. May be set to `always`,
-       `false` (or `never`) or `auto` (or `true`), in which case colors are 
used
-       only when the output is to a terminal. If unset, then the
-       value of `color.ui` is used (`auto` by default).
+       When to use color in the output of linkgit:git-show-branch[1].
+       May be set to `never` (or `false`) to disable color or `auto`
+       (or `true`) to use colors only when the output is to a terminal.
+       If unset, the value of `color.ui` is used (`auto` by default).
++
+The value `always` is a historical synonym for `auto`, except when
+passed on the command line using `-c`, where it is a historical synonym
+for `--color=always`.
 
 color.status::
-       A boolean to enable/disable color in the output of
-       linkgit:git-status[1]. May be set to `always`,
-       `false` (or `never`) or `auto` (or `true`), in which case colors are 
used
-       only when the output is to a terminal. If unset, then the
-       value of `color.ui` is used (`auto` by default).
+       When to use color in the output of linkgit:git-status[1].
+       May be set to `never` (or `false`) to disable color or `auto`
+       (or `true`) to use colors only when the output is to the terminal.
+       If unset, then the value of `color.ui` is used (`auto` by default).
++
+The value `always` is a historical synonym for `auto`, except when
+passed on the command line using `-c`, where it means to use color
+regardless of whether output is to the terminal.
 
 color.status.<slot>::
        Use customized color for status colorization. `<slot>` is
@@ -1204,8 +1223,11 @@ color.ui::
        color unless enabled explicitly with some other configuration
        or the `--color` option. Set it to `true` or `auto` to enable
        color when output is written to the terminal (this is also the
-       default since Git 1.8.4). The value `always` is a historical
-       synonym for `auto`.
+       default since Git 1.8.4).
++
+The value `always` is a historical synonym for `auto`, except when
+passed on the command line using `-c`, where it means to use color
+regardless of whether output is to the terminal.
 
 column.ui::
        Specify whether supported commands should output in columns.

Reply via email to