FilesExpand file tree

tgit

/

color.c

Copy path

Blame

More file actions

Blame

More file actions

Latest commit

 

History

History

History

213 lines (188 loc) · 4.06 KB

tgit

/

color.c

Copy path

Top

File metadata and controls

• Code
• Blame

213 lines (188 loc) · 4.06 KB

Raw

Copy raw file

Download raw file

Open symbols panel

Edit and raw actions

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

81

82

83

84

85

86

87

88

89

90

91

92

93

94

95

96

97

98

99

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

183

184

185

186

187

188

189

190

191

192

193

194

195

196

197

198

199

200

201

202

203

204

205

206

207

208

209

210

211

212

213

#include "cache.h"

#include "color.h"

int git_use_color_default = 0;

static int parse_color(const char *name, int len)

{

static const char * const color_names[] = {

"normal", "black", "red", "green", "yellow",

"blue", "magenta", "cyan", "white"

};

char *end;

int i;

for (i = 0; i < ARRAY_SIZE(color_names); i++) {

const char *str = color_names[i];

if (!strncasecmp(name, str, len) && !str[len])

return i - 1;

}

i = strtol(name, &end, 10);

if (end - name == len && i >= -1 && i <= 255)

return i;

return -2;

}

static int parse_attr(const char *name, int len)

{

static const int attr_values[] = { 1, 2, 4, 5, 7 };

static const char * const attr_names[] = {

"bold", "dim", "ul", "blink", "reverse"

};

int i;

for (i = 0; i < ARRAY_SIZE(attr_names); i++) {

const char *str = attr_names[i];

if (!strncasecmp(name, str, len) && !str[len])

return attr_values[i];

}

return -1;

}

void color_parse(const char *value, const char *var, char *dst)

{

color_parse_mem(value, strlen(value), var, dst);

}

void color_parse_mem(const char *value, int value_len, const char *var,

char *dst)

{

const char *ptr = value;

int len = value_len;

unsigned int attr = 0;

int fg = -2;

int bg = -2;

if (!strncasecmp(value, "reset", len)) {

strcpy(dst, GIT_COLOR_RESET);

return;

}

/* [fg [bg]] [attr]... */

while (len > 0) {

const char *word = ptr;

int val, wordlen = 0;

while (len > 0 && !isspace(word[wordlen])) {

wordlen++;

len--;

}

ptr = word + wordlen;

while (len > 0 && isspace(*ptr)) {

ptr++;

len--;

}

val = parse_color(word, wordlen);

if (val >= -1) {

if (fg == -2) {

fg = val;

continue;

}

if (bg == -2) {

bg = val;

continue;

}

goto bad;

}

val = parse_attr(word, wordlen);

if (0 <= val)

attr |= (1 << val);

else

goto bad;

}

if (attr || fg >= 0 || bg >= 0) {

int sep = 0;

int i;

*dst++ = '\033';

*dst++ = '[';

for (i = 0; attr; i++) {

unsigned bit = (1 << i);

if (!(attr & bit))

continue;

attr &= ~bit;

if (sep++)

*dst++ = ';';

*dst++ = '0' + i;

}

if (fg >= 0) {

if (sep++)

*dst++ = ';';

if (fg < 8) {

*dst++ = '3';

*dst++ = '0' + fg;

} else {

dst += sprintf(dst, "38;5;%d", fg);

}

}

if (bg >= 0) {

if (sep++)

*dst++ = ';';

if (bg < 8) {

*dst++ = '4';

*dst++ = '0' + bg;

} else {

dst += sprintf(dst, "48;5;%d", bg);

}

}

*dst++ = 'm';

}

*dst = 0;

return;

bad:

die("bad color value '%.*s' for variable '%s'", value_len, value, var);

}

int git_config_colorbool(const char *var, const char *value, int stdout_is_tty)

{

if (value) {

if (!strcasecmp(value, "never"))

return 0;

if (!strcasecmp(value, "always"))

return 1;

if (!strcasecmp(value, "auto"))

goto auto_color;

}

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' */

auto_color:

if (stdout_is_tty < 0)

stdout_is_tty = isatty(1);

if (stdout_is_tty || (pager_in_use() && pager_use_color)) {

char *term = getenv("TERM");

if (term && strcmp(term, "dumb"))

return 1;

}

return 0;

}

int git_color_default_config(const char *var, const char *value, void *cb)

{

if (!strcmp(var, "color.ui")) {

git_use_color_default = git_config_colorbool(var, value, -1);

return 0;

}

return git_default_config(var, value, cb);

}

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;

}