FilesExpand file tree

development

/

pathspec.c

Copy path

Blame

More file actions

Blame

More file actions

Latest commit

 

History

History

History

152 lines (120 loc) · 3.53 KB

development

/

pathspec.c

Copy path

Top

File metadata and controls

• Code
• Blame

152 lines (120 loc) · 3.53 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

/*

* Copyright (C) 2009-2012 the libgit2 contributors

*

* This file is part of libgit2, distributed under the GNU GPL v2 with

* a Linking Exception. For full terms see the included COPYING file.

*/

#include "pathspec.h"

#include "buf_text.h"

#include "attr_file.h"

/* what is the common non-wildcard prefix for all items in the pathspec */

char *git_pathspec_prefix(const git_strarray *pathspec)

{

git_buf prefix = GIT_BUF_INIT;

const char *scan;

if (!pathspec || !pathspec->count ||

git_buf_text_common_prefix(&prefix, pathspec) < 0)

return NULL;

/* diff prefix will only be leading non-wildcards */

for (scan = prefix.ptr; *scan; ++scan) {

if (git__iswildcard(*scan) &&

(scan == prefix.ptr || (*(scan - 1) != '\\')))

break;

}

git_buf_truncate(&prefix, scan - prefix.ptr);

if (prefix.size <= 0) {

git_buf_free(&prefix);

return NULL;

}

git_buf_text_unescape(&prefix);

return git_buf_detach(&prefix);

}

/* is there anything in the spec that needs to be filtered on */

bool git_pathspec_is_interesting(const git_strarray *pathspec)

{

const char *str;

if (pathspec == NULL || pathspec->count == 0)

return false;

if (pathspec->count > 1)

return true;

str = pathspec->strings[0];

if (!str || !str[0] || (!str[1] && (str[0] == '*' || str[0] == '.')))

return false;

return true;

}

/* build a vector of fnmatch patterns to evaluate efficiently */

int git_pathspec_init(

git_vector *vspec, const git_strarray *strspec, git_pool *strpool)

{

size_t i;

memset(vspec, 0, sizeof(*vspec));

if (!git_pathspec_is_interesting(strspec))

return 0;

if (git_vector_init(vspec, strspec->count, NULL) < 0)

return -1;

for (i = 0; i < strspec->count; ++i) {

int ret;

const char *pattern = strspec->strings[i];

git_attr_fnmatch *match = git__calloc(1, sizeof(git_attr_fnmatch));

if (!match)

return -1;

match->flags = GIT_ATTR_FNMATCH_ALLOWSPACE;

ret = git_attr_fnmatch__parse(match, strpool, NULL, &pattern);

if (ret == GIT_ENOTFOUND) {

git__free(match);

continue;

} else if (ret < 0)

return ret;

if (git_vector_insert(vspec, match) < 0)

return -1;

}

return 0;

}

/* free data from the pathspec vector */

void git_pathspec_free(git_vector *vspec)

{

git_attr_fnmatch *match;

unsigned int i;

git_vector_foreach(vspec, i, match) {

git__free(match);

vspec->contents[i] = NULL;

}

git_vector_free(vspec);

}

/* match a path against the vectorized pathspec */

bool git_pathspec_match_path(

git_vector *vspec, const char *path, bool disable_fnmatch, bool casefold)

{

unsigned int i;

git_attr_fnmatch *match;

int fnmatch_flags = 0;

int (*use_strcmp)(const char *, const char *);

int (*use_strncmp)(const char *, const char *, size_t);

if (!vspec || !vspec->length)

return true;

if (disable_fnmatch)

fnmatch_flags = -1;

else if (casefold)

fnmatch_flags = FNM_CASEFOLD;

if (casefold) {

use_strcmp = git__strcasecmp;

use_strncmp = git__strncasecmp;

} else {

use_strcmp = git__strcmp;

use_strncmp = git__strncmp;

}

git_vector_foreach(vspec, i, match) {

int result = use_strcmp(match->pattern, path) ? FNM_NOMATCH : 0;

if (fnmatch_flags >= 0 && result == FNM_NOMATCH)

result = p_fnmatch(match->pattern, path, fnmatch_flags);

/* if we didn't match, look for exact dirname prefix match */

if (result == FNM_NOMATCH &&

(match->flags & GIT_ATTR_FNMATCH_HASWILD) == 0 &&

use_strncmp(path, match->pattern, match->length) == 0 &&

path[match->length] == '/')

result = 0;

if (result == 0)

return (match->flags & GIT_ATTR_FNMATCH_NEGATIVE) ? false : true;

}

return false;

}