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/*
* libdpkg - Debian packaging suite library routines
* color.c - color support
*
* Copyright © 2015-2016 Guillem Jover <guillem@debian.org>
*
* This is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <compat.h>
#include <stdbool.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <dpkg/macros.h>
#include <dpkg/color.h>
static enum color_mode color_mode = COLOR_MODE_UNKNOWN;
static bool use_color = false;
bool
color_set_mode(const char *mode)
{
if (strcmp(mode, "auto") == 0) {
color_mode = COLOR_MODE_AUTO;
use_color = isatty(STDOUT_FILENO);
} else if (strcmp(mode, "always") == 0) {
color_mode = COLOR_MODE_ALWAYS;
use_color = true;
} else {
color_mode = COLOR_MODE_NEVER;
use_color = false;
}
return use_color;
}
static bool
color_enabled(void)
{
const char *mode;
if (color_mode != COLOR_MODE_UNKNOWN)
return use_color;
mode = getenv("DPKG_COLORS");
if (mode == NULL)
mode = "auto";
return color_set_mode(mode);
}
const char *
color_get(const char *color)
{
if (!color_enabled())
return "";
return color;
}
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