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Diffstat (limited to 'color.h')
| -rw-r--r-- | color.h | 97 |
1 files changed, 97 insertions, 0 deletions
@@ -0,0 +1,97 @@ +#ifndef COLOR_H +#define COLOR_H + +struct strbuf; + +/* 2 + (2 * num_attrs) + 8 + 1 + 8 + 'm' + NUL */ +/* "\033[1;2;4;5;7;38;5;2xx;48;5;2xxm\0" */ +/* + * The maximum length of ANSI color sequence we would generate: + * - leading ESC '[' 2 + * - attr + ';' 3 * 10 (e.g. "1;") + * - fg color + ';' 17 (e.g. "38;2;255;255;255;") + * - bg color + ';' 17 (e.g. "48;2;255;255;255;") + * - terminating 'm' NUL 2 + * + * The above overcounts attr (we only use 5 not 8) and one semicolon + * but it is close enough. + */ +#define COLOR_MAXLEN 70 + +/* + * IMPORTANT: Due to the way these color codes are emulated on Windows, + * write them only using printf(), fprintf(), and fputs(). In particular, + * do not use puts() or write(). + */ +#define GIT_COLOR_NORMAL "" +#define GIT_COLOR_RESET "\033[m" +#define GIT_COLOR_BOLD "\033[1m" +#define GIT_COLOR_RED "\033[31m" +#define GIT_COLOR_GREEN "\033[32m" +#define GIT_COLOR_YELLOW "\033[33m" +#define GIT_COLOR_BLUE "\033[34m" +#define GIT_COLOR_MAGENTA "\033[35m" +#define GIT_COLOR_CYAN "\033[36m" +#define GIT_COLOR_BOLD_RED "\033[1;31m" +#define GIT_COLOR_BOLD_GREEN "\033[1;32m" +#define GIT_COLOR_BOLD_YELLOW "\033[1;33m" +#define GIT_COLOR_BOLD_BLUE "\033[1;34m" +#define GIT_COLOR_BOLD_MAGENTA "\033[1;35m" +#define GIT_COLOR_BOLD_CYAN "\033[1;36m" +#define GIT_COLOR_BG_RED "\033[41m" +#define GIT_COLOR_BG_GREEN "\033[42m" +#define GIT_COLOR_BG_YELLOW "\033[43m" +#define GIT_COLOR_BG_BLUE "\033[44m" +#define GIT_COLOR_BG_MAGENTA "\033[45m" +#define GIT_COLOR_BG_CYAN "\033[46m" + +/* A special value meaning "no color selected" */ +#define GIT_COLOR_NIL "NIL" + +/* + * The first three are chosen to match common usage in the code, and what is + * returned from git_config_colorbool. The "auto" value can be returned from + * config_colorbool, and will be converted by want_color() into either 0 or 1. + */ +#define GIT_COLOR_UNKNOWN -1 +#define GIT_COLOR_NEVER 0 +#define GIT_COLOR_ALWAYS 1 +#define GIT_COLOR_AUTO 2 + +/* A default list of colors to use for commit graphs and show-branch output */ +extern const char *column_colors_ansi[]; +extern const int column_colors_ansi_max; + +/* + * Generally the color code will lazily figure this out itself, but + * this provides a mechanism for callers to override autodetection. + */ +extern int color_stdout_is_tty; + +/* + * Use the first one if you need only color config; the second is a convenience + * if you are just going to change to git_default_config, too. + */ +int git_color_config(const char *var, const char *value, void *cb); +int git_color_default_config(const char *var, const char *value, void *cb); + +/* + * Set the color buffer (which must be COLOR_MAXLEN bytes) + * to the raw color bytes; this is useful for initializing + * default color variables. + */ +void color_set(char *dst, const char *color_bytes); + +int git_config_colorbool(const char *var, const char *value); +int want_color(int var); +int color_parse(const char *value, char *dst); +int color_parse_mem(const char *value, int len, char *dst); +__attribute__((format (printf, 3, 4))) +int color_fprintf(FILE *fp, const char *color, const char *fmt, ...); +__attribute__((format (printf, 3, 4))) +int color_fprintf_ln(FILE *fp, const char *color, const char *fmt, ...); +void color_print_strbuf(FILE *fp, const char *color, const struct strbuf *sb); + +int color_is_nil(const char *color); + +#endif /* COLOR_H */ |