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tag: v1.7.9-rc0
file 91 lines (79 sloc) 3.19 kb
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#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 + ';' 2 * 8 (e.g. "1;")
* - fg color + ';' 9 (e.g. "38;5;2xx;")
* - fg color + ';' 9 (e.g. "48;5;2xx;")
* - 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 40

/*
* 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);

int git_config_colorbool(const char *var, const char *value);
int want_color(int var);
void color_parse(const char *value, const char *var, char *dst);
void color_parse_mem(const char *value, int len, const char *var, 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 */
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