diff --git a/src/main.cpp b/src/main.cpp index ebd1f740e..d927b141b 100644 --- a/src/main.cpp +++ b/src/main.cpp @@ -77,12 +77,17 @@ extern "C" { #define DEBUGFILE "debug.txt" #define DEFAULT_SERVER_PORT 30000 +#define ENV_NO_COLOR "NO_COLOR" +#define ENV_CLICOLOR "CLICOLOR" +#define ENV_CLICOLOR_FORCE "CLICOLOR_FORCE" + typedef std::map OptionList; /********************************************************************** * Private functions **********************************************************************/ +static void get_env_opts(Settings &args); static bool get_cmdline_opts(int argc, char *argv[], Settings *cmd_args); static void set_allowed_options(OptionList *allowed_options); @@ -136,6 +141,7 @@ int main(int argc, char *argv[]) g_logger.addOutputMaxLevel(&stderr_output, LL_ACTION); Settings cmd_args; + get_env_opts(cmd_args); bool cmd_args_ok = get_cmdline_opts(argc, argv, &cmd_args); if (!cmd_args_ok || cmd_args.getFlag("help") @@ -269,6 +275,29 @@ int main(int argc, char *argv[]) *****************************************************************************/ +static void get_env_opts(Settings &args) +{ + // CLICOLOR is a de-facto standard option for colors + // CLICOLOR != 0: ANSI colors are supported (auto-detection, this is the default) + // CLICOLOR == 0: ANSI colors are NOT supported + const char *clicolor = std::getenv(ENV_CLICOLOR); + if (clicolor && std::string(clicolor) == "0") { + args.set("color", "never"); + } + // NO_COLOR only specifies that no color is allowed. + // Implemented according to + const char *no_color = std::getenv(ENV_NO_COLOR); + if (no_color && no_color[0]) { + args.set("color", "never"); + } + // CLICOLOR_FORCE is another option, which should turn on colors "no matter what". + const char *clicolor_force = std::getenv(ENV_CLICOLOR_FORCE); + if (clicolor_force && std::string(clicolor_force) != "0") { + // should ALWAYS have colors, so we ignore tty (no "auto") + args.set("color", "always"); + } +} + static bool get_cmdline_opts(int argc, char *argv[], Settings *cmd_args) { set_allowed_options(&allowed_options);