about summary refs log tree commit diff
path: root/third_party/git/color.c
diff options
context:
space:
mode:
Diffstat (limited to 'third_party/git/color.c')
-rw-r--r--third_party/git/color.c425
1 files changed, 0 insertions, 425 deletions
diff --git a/third_party/git/color.c b/third_party/git/color.c
deleted file mode 100644
index ebb222ec33..0000000000
--- a/third_party/git/color.c
+++ /dev/null
@@ -1,425 +0,0 @@
-#include "cache.h"
-#include "config.h"
-#include "color.h"
-
-static int git_use_color_default = GIT_COLOR_AUTO;
-int color_stdout_is_tty = -1;
-
-/*
- * The list of available column colors.
- */
-const char *column_colors_ansi[] = {
-	GIT_COLOR_RED,
-	GIT_COLOR_GREEN,
-	GIT_COLOR_YELLOW,
-	GIT_COLOR_BLUE,
-	GIT_COLOR_MAGENTA,
-	GIT_COLOR_CYAN,
-	GIT_COLOR_BOLD_RED,
-	GIT_COLOR_BOLD_GREEN,
-	GIT_COLOR_BOLD_YELLOW,
-	GIT_COLOR_BOLD_BLUE,
-	GIT_COLOR_BOLD_MAGENTA,
-	GIT_COLOR_BOLD_CYAN,
-	GIT_COLOR_RESET,
-};
-
-/* Ignore the RESET at the end when giving the size */
-const int column_colors_ansi_max = ARRAY_SIZE(column_colors_ansi) - 1;
-
-/* An individual foreground or background color. */
-struct color {
-	enum {
-		COLOR_UNSPECIFIED = 0,
-		COLOR_NORMAL,
-		COLOR_ANSI, /* basic 0-7 ANSI colors */
-		COLOR_256,
-		COLOR_RGB
-	} type;
-	/* The numeric value for ANSI and 256-color modes */
-	unsigned char value;
-	/* 24-bit RGB color values */
-	unsigned char red, green, blue;
-};
-
-/*
- * "word" is a buffer of length "len"; does it match the NUL-terminated
- * "match" exactly?
- */
-static int match_word(const char *word, int len, const char *match)
-{
-	return !strncasecmp(word, match, len) && !match[len];
-}
-
-static int get_hex_color(const char *in, unsigned char *out)
-{
-	unsigned int val;
-	val = (hexval(in[0]) << 4) | hexval(in[1]);
-	if (val & ~0xff)
-		return -1;
-	*out = val;
-	return 0;
-}
-
-static int parse_color(struct color *out, const char *name, int len)
-{
-	/* Positions in array must match ANSI color codes */
-	static const char * const color_names[] = {
-		"black", "red", "green", "yellow",
-		"blue", "magenta", "cyan", "white"
-	};
-	char *end;
-	int i;
-	long val;
-
-	/* First try the special word "normal"... */
-	if (match_word(name, len, "normal")) {
-		out->type = COLOR_NORMAL;
-		return 0;
-	}
-
-	/* Try a 24-bit RGB value */
-	if (len == 7 && name[0] == '#') {
-		if (!get_hex_color(name + 1, &out->red) &&
-		    !get_hex_color(name + 3, &out->green) &&
-		    !get_hex_color(name + 5, &out->blue)) {
-			out->type = COLOR_RGB;
-			return 0;
-		}
-	}
-
-	/* Then pick from our human-readable color names... */
-	for (i = 0; i < ARRAY_SIZE(color_names); i++) {
-		if (match_word(name, len, color_names[i])) {
-			out->type = COLOR_ANSI;
-			out->value = i;
-			return 0;
-		}
-	}
-
-	/* And finally try a literal 256-color-mode number */
-	val = strtol(name, &end, 10);
-	if (end - name == len) {
-		/*
-		 * Allow "-1" as an alias for "normal", but other negative
-		 * numbers are bogus.
-		 */
-		if (val < -1)
-			; /* fall through to error */
-		else if (val < 0) {
-			out->type = COLOR_NORMAL;
-			return 0;
-		/* Rewrite low numbers as more-portable standard colors. */
-		} else if (val < 8) {
-			out->type = COLOR_ANSI;
-			out->value = val;
-			return 0;
-		} else if (val < 256) {
-			out->type = COLOR_256;
-			out->value = val;
-			return 0;
-		}
-	}
-
-	return -1;
-}
-
-static int parse_attr(const char *name, size_t len)
-{
-	static const struct {
-		const char *name;
-		size_t len;
-		int val, neg;
-	} attrs[] = {
-#define ATTR(x, val, neg) { (x), sizeof(x)-1, (val), (neg) }
-		ATTR("bold",      1, 22),
-		ATTR("dim",       2, 22),
-		ATTR("italic",    3, 23),
-		ATTR("ul",        4, 24),
-		ATTR("blink",     5, 25),
-		ATTR("reverse",   7, 27),
-		ATTR("strike",    9, 29)
-#undef ATTR
-	};
-	int negate = 0;
-	int i;
-
-	if (skip_prefix_mem(name, len, "no", &name, &len)) {
-		skip_prefix_mem(name, len, "-", &name, &len);
-		negate = 1;
-	}
-
-	for (i = 0; i < ARRAY_SIZE(attrs); i++) {
-		if (attrs[i].len == len && !memcmp(attrs[i].name, name, len))
-			return negate ? attrs[i].neg : attrs[i].val;
-	}
-	return -1;
-}
-
-int color_parse(const char *value, char *dst)
-{
-	return color_parse_mem(value, strlen(value), dst);
-}
-
-/*
- * Write the ANSI color codes for "c" to "out"; the string should
- * already have the ANSI escape code in it. "out" should have enough
- * space in it to fit any color.
- */
-static char *color_output(char *out, int len, const struct color *c, char type)
-{
-	switch (c->type) {
-	case COLOR_UNSPECIFIED:
-	case COLOR_NORMAL:
-		break;
-	case COLOR_ANSI:
-		if (len < 2)
-			BUG("color parsing ran out of space");
-		*out++ = type;
-		*out++ = '0' + c->value;
-		break;
-	case COLOR_256:
-		out += xsnprintf(out, len, "%c8;5;%d", type, c->value);
-		break;
-	case COLOR_RGB:
-		out += xsnprintf(out, len, "%c8;2;%d;%d;%d", type,
-				 c->red, c->green, c->blue);
-		break;
-	}
-	return out;
-}
-
-static int color_empty(const struct color *c)
-{
-	return c->type <= COLOR_NORMAL;
-}
-
-int color_parse_mem(const char *value, int value_len, char *dst)
-{
-	const char *ptr = value;
-	int len = value_len;
-	char *end = dst + COLOR_MAXLEN;
-	unsigned int attr = 0;
-	struct color fg = { COLOR_UNSPECIFIED };
-	struct color bg = { COLOR_UNSPECIFIED };
-
-	while (len > 0 && isspace(*ptr)) {
-		ptr++;
-		len--;
-	}
-
-	if (!len) {
-		dst[0] = '\0';
-		return 0;
-	}
-
-	if (!strncasecmp(ptr, "reset", len)) {
-		xsnprintf(dst, end - dst, GIT_COLOR_RESET);
-		return 0;
-	}
-
-	/* [fg [bg]] [attr]... */
-	while (len > 0) {
-		const char *word = ptr;
-		struct color c = { COLOR_UNSPECIFIED };
-		int val, wordlen = 0;
-
-		while (len > 0 && !isspace(word[wordlen])) {
-			wordlen++;
-			len--;
-		}
-
-		ptr = word + wordlen;
-		while (len > 0 && isspace(*ptr)) {
-			ptr++;
-			len--;
-		}
-
-		if (!parse_color(&c, word, wordlen)) {
-			if (fg.type == COLOR_UNSPECIFIED) {
-				fg = c;
-				continue;
-			}
-			if (bg.type == COLOR_UNSPECIFIED) {
-				bg = c;
-				continue;
-			}
-			goto bad;
-		}
-		val = parse_attr(word, wordlen);
-		if (0 <= val)
-			attr |= (1 << val);
-		else
-			goto bad;
-	}
-
-#undef OUT
-#define OUT(x) do { \
-	if (dst == end) \
-		BUG("color parsing ran out of space"); \
-	*dst++ = (x); \
-} while(0)
-
-	if (attr || !color_empty(&fg) || !color_empty(&bg)) {
-		int sep = 0;
-		int i;
-
-		OUT('\033');
-		OUT('[');
-
-		for (i = 0; attr; i++) {
-			unsigned bit = (1 << i);
-			if (!(attr & bit))
-				continue;
-			attr &= ~bit;
-			if (sep++)
-				OUT(';');
-			dst += xsnprintf(dst, end - dst, "%d", i);
-		}
-		if (!color_empty(&fg)) {
-			if (sep++)
-				OUT(';');
-			/* foreground colors are all in the 3x range */
-			dst = color_output(dst, end - dst, &fg, '3');
-		}
-		if (!color_empty(&bg)) {
-			if (sep++)
-				OUT(';');
-			/* background colors are all in the 4x range */
-			dst = color_output(dst, end - dst, &bg, '4');
-		}
-		OUT('m');
-	}
-	OUT(0);
-	return 0;
-bad:
-	return error(_("invalid color value: %.*s"), value_len, value);
-#undef OUT
-}
-
-int git_config_colorbool(const char *var, const char *value)
-{
-	if (value) {
-		if (!strcasecmp(value, "never"))
-			return 0;
-		if (!strcasecmp(value, "always"))
-			return 1;
-		if (!strcasecmp(value, "auto"))
-			return GIT_COLOR_AUTO;
-	}
-
-	if (!var)
-		return -1;
-
-	/* Missing or explicit false to turn off colorization */
-	if (!git_config_bool(var, value))
-		return 0;
-
-	/* any normal truth value defaults to 'auto' */
-	return GIT_COLOR_AUTO;
-}
-
-static int check_auto_color(int fd)
-{
-	static int color_stderr_is_tty = -1;
-	int *is_tty_p = fd == 1 ? &color_stdout_is_tty : &color_stderr_is_tty;
-	if (*is_tty_p < 0)
-		*is_tty_p = isatty(fd);
-	if (*is_tty_p || (fd == 1 && pager_in_use() && pager_use_color)) {
-		if (!is_terminal_dumb())
-			return 1;
-	}
-	return 0;
-}
-
-int want_color_fd(int fd, int var)
-{
-	/*
-	 * NEEDSWORK: This function is sometimes used from multiple threads, and
-	 * we end up using want_auto racily. That "should not matter" since
-	 * we always write the same value, but it's still wrong. This function
-	 * is listed in .tsan-suppressions for the time being.
-	 */
-
-	static int want_auto[3] = { -1, -1, -1 };
-
-	if (fd < 1 || fd >= ARRAY_SIZE(want_auto))
-		BUG("file descriptor out of range: %d", fd);
-
-	if (var < 0)
-		var = git_use_color_default;
-
-	if (var == GIT_COLOR_AUTO) {
-		if (want_auto[fd] < 0)
-			want_auto[fd] = check_auto_color(fd);
-		return want_auto[fd];
-	}
-	return var;
-}
-
-int git_color_config(const char *var, const char *value, void *cb)
-{
-	if (!strcmp(var, "color.ui")) {
-		git_use_color_default = git_config_colorbool(var, value);
-		return 0;
-	}
-
-	return 0;
-}
-
-int git_color_default_config(const char *var, const char *value, void *cb)
-{
-	if (git_color_config(var, value, cb) < 0)
-		return -1;
-
-	return git_default_config(var, value, cb);
-}
-
-void color_print_strbuf(FILE *fp, const char *color, const struct strbuf *sb)
-{
-	if (*color)
-		fprintf(fp, "%s", color);
-	fprintf(fp, "%s", sb->buf);
-	if (*color)
-		fprintf(fp, "%s", GIT_COLOR_RESET);
-}
-
-static int color_vfprintf(FILE *fp, const char *color, const char *fmt,
-		va_list args, const char *trail)
-{
-	int r = 0;
-
-	if (*color)
-		r += fprintf(fp, "%s", color);
-	r += vfprintf(fp, fmt, args);
-	if (*color)
-		r += fprintf(fp, "%s", GIT_COLOR_RESET);
-	if (trail)
-		r += fprintf(fp, "%s", trail);
-	return r;
-}
-
-int color_fprintf(FILE *fp, const char *color, const char *fmt, ...)
-{
-	va_list args;
-	int r;
-	va_start(args, fmt);
-	r = color_vfprintf(fp, color, fmt, args, NULL);
-	va_end(args);
-	return r;
-}
-
-int color_fprintf_ln(FILE *fp, const char *color, const char *fmt, ...)
-{
-	va_list args;
-	int r;
-	va_start(args, fmt);
-	r = color_vfprintf(fp, color, fmt, args, "\n");
-	va_end(args);
-	return r;
-}
-
-int color_is_nil(const char *c)
-{
-	return !strcmp(c, "NIL");
-}