diff options
| author | Mark Lodato <lodatom@gmail.com> | 2010-02-17 07:55:58 +0300 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2010-02-19 04:21:40 +0300 |
| commit | 73e9da019655261e456ed862340880de365111f0 (patch) | |
| tree | 3668881735169164f975f4db0983241cf3d631ba /Documentation/technical/api-parse-options.txt | |
| parent | e923eaeb901ff056421b9007adcbbce271caa7b6 (diff) | |
Add an optional argument for --color options
Make git-branch, git-show-branch, git-grep, and all the diff-based
programs accept an optional argument <when> for --color. The argument
is a colorbool: "always", "never", or "auto". If no argument is given,
"always" is used; --no-color is an alias for --color=never. This makes
the command-line interface consistent with other GNU tools, such as `ls'
and `grep', and with the git-config color options. Note that, without
an argument, --color and --no-color work exactly as before.
To implement this, two internal changes were made:
1. Allow the first argument of git_config_colorbool() to be NULL,
in which case it returns -1 if the argument isn't "always", "never",
or "auto".
2. Add OPT_COLOR_FLAG(), OPT__COLOR(), and parse_opt_color_flag_cb()
to the option parsing library. The callback uses
git_config_colorbool(), so color.h is now a dependency
of parse-options.c.
Signed-off-by: Mark Lodato <lodatom@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'Documentation/technical/api-parse-options.txt')
| -rw-r--r-- | Documentation/technical/api-parse-options.txt | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/Documentation/technical/api-parse-options.txt b/Documentation/technical/api-parse-options.txt index 50f9e9ac17..312e3b2e2b 100644 --- a/Documentation/technical/api-parse-options.txt +++ b/Documentation/technical/api-parse-options.txt @@ -115,6 +115,9 @@ There are some macros to easily define options: `OPT__ABBREV(&int_var)`:: Add `\--abbrev[=<n>]`. +`OPT__COLOR(&int_var, description)`:: + Add `\--color[=<when>]` and `--no-color`. + `OPT__DRY_RUN(&int_var)`:: Add `-n, \--dry-run`. @@ -183,6 +186,15 @@ There are some macros to easily define options: arguments. Short options that happen to be digits take precedence over it. +`OPT_COLOR_FLAG(short, long, &int_var, description)`:: + Introduce an option that takes an optional argument that can + have one of three values: "always", "never", or "auto". If the + argument is not given, it defaults to "always". The `--no-` form + works like `--long=never`; it cannot take an argument. If + "always", set `int_var` to 1; if "never", set `int_var` to 0; if + "auto", set `int_var` to 1 if stdout is a tty or a pager, + 0 otherwise. + The last element of the array must be `OPT_END()`. |