FilesExpand file tree

 master

/

mv.c

Copy path

Blame

More file actions

Blame

More file actions

Latest commit

 

History

History

History

227 lines (201 loc) · 5.96 KB

 master

/

mv.c

Copy path

Top

File metadata and controls

• Code
• Blame

227 lines (201 loc) · 5.96 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

214

215

216

217

218

219

220

221

222

223

224

225

226

227

/*

* "git mv" builtin command

*

* Copyright (C) 2006 Johannes Schindelin

*/

#include "cache.h"

#include "builtin.h"

#include "dir.h"

#include "cache-tree.h"

#include "string-list.h"

#include "parse-options.h"

static const char * const builtin_mv_usage[] = {

"git mv [options] <source>... <destination>",

NULL

};

static const char **copy_pathspec(const char *prefix, const char **pathspec,

int count, int base_name)

{

int i;

const char **result = xmalloc((count + 1) * sizeof(const char *));

memcpy(result, pathspec, count * sizeof(const char *));

result[count] = NULL;

for (i = 0; i < count; i++) {

int length = strlen(result[i]);

int to_copy = length;

while (to_copy > 0 && is_dir_sep(result[i][to_copy - 1]))

to_copy--;

if (to_copy != length || base_name) {

char *it = xmemdupz(result[i], to_copy);

result[i] = base_name ? strdup(basename(it)) : it;

}

}

return get_pathspec(prefix, result);

}

static const char *add_slash(const char *path)

{

int len = strlen(path);

if (path[len - 1] != '/') {

char *with_slash = xmalloc(len + 2);

memcpy(with_slash, path, len);

with_slash[len++] = '/';

with_slash[len] = 0;

return with_slash;

}

return path;

}

static struct lock_file lock_file;

int cmd_mv(int argc, const char **argv, const char *prefix)

{

int i, newfd;

int verbose = 0, show_only = 0, force = 0, ignore_errors = 0;

struct option builtin_mv_options[] = {

OPT__DRY_RUN(&show_only),

OPT_BOOLEAN('f', "force", &force, "force move/rename even if target exists"),

OPT_BOOLEAN('k', NULL, &ignore_errors, "skip move/rename errors"),

OPT_END(),

};

const char **source, **destination, **dest_path;

enum update_mode { BOTH = 0, WORKING_DIRECTORY, INDEX } *modes;

struct stat st;

struct string_list src_for_dst = STRING_LIST_INIT_NODUP;

git_config(git_default_config, NULL);

argc = parse_options(argc, argv, prefix, builtin_mv_options,

builtin_mv_usage, 0);

if (--argc < 1)

usage_with_options(builtin_mv_usage, builtin_mv_options);

newfd = hold_locked_index(&lock_file, 1);

if (read_cache() < 0)

die("index file corrupt");

source = copy_pathspec(prefix, argv, argc, 0);

modes = xcalloc(argc, sizeof(enum update_mode));

dest_path = copy_pathspec(prefix, argv + argc, 1, 0);

if (dest_path[0][0] == '\0')

/* special case: "." was normalized to "" */

destination = copy_pathspec(dest_path[0], argv, argc, 1);

else if (!lstat(dest_path[0], &st) &&

S_ISDIR(st.st_mode)) {

dest_path[0] = add_slash(dest_path[0]);

destination = copy_pathspec(dest_path[0], argv, argc, 1);

} else {

if (argc != 1)

usage_with_options(builtin_mv_usage, builtin_mv_options);

destination = dest_path;

}

/* Checking */

for (i = 0; i < argc; i++) {

const char *src = source[i], *dst = destination[i];

int length, src_is_dir;

const char *bad = NULL;

if (show_only)

printf("Checking rename of '%s' to '%s'\n", src, dst);

length = strlen(src);

if (lstat(src, &st) < 0)

bad = "bad source";

else if (!strncmp(src, dst, length) &&

(dst[length] == 0 || dst[length] == '/')) {

bad = "can not move directory into itself";

} else if ((src_is_dir = S_ISDIR(st.st_mode))

&& lstat(dst, &st) == 0)

bad = "cannot move directory over file";

else if (src_is_dir) {

const char *src_w_slash = add_slash(src);

int len_w_slash = length + 1;

int first, last;

modes[i] = WORKING_DIRECTORY;

first = cache_name_pos(src_w_slash, len_w_slash);

if (first >= 0)

die ("Huh? %.*s is in index?",

len_w_slash, src_w_slash);

first = -1 - first;

for (last = first; last < active_nr; last++) {

const char *path = active_cache[last]->name;

if (strncmp(path, src_w_slash, len_w_slash))

break;

}

free((char *)src_w_slash);

if (last - first < 1)

bad = "source directory is empty";

else {

int j, dst_len;

if (last - first > 0) {

source = xrealloc(source,

(argc + last - first)

* sizeof(char *));

destination = xrealloc(destination,

(argc + last - first)

* sizeof(char *));

modes = xrealloc(modes,

(argc + last - first)

* sizeof(enum update_mode));

}

dst = add_slash(dst);

dst_len = strlen(dst);

for (j = 0; j < last - first; j++) {

const char *path =

active_cache[first + j]->name;

source[argc + j] = path;

destination[argc + j] =

prefix_path(dst, dst_len,

path + length + 1);

modes[argc + j] = INDEX;

}

argc += last - first;

}

} else if (cache_name_pos(src, length) < 0)

bad = "not under version control";

else if (lstat(dst, &st) == 0) {

bad = "destination exists";

if (force) {

/*

* only files can overwrite each other:

* check both source and destination

*/

if (S_ISREG(st.st_mode) || S_ISLNK(st.st_mode)) {

warning("%s; will overwrite!", bad);

bad = NULL;

} else

bad = "Cannot overwrite";

}

} else if (string_list_has_string(&src_for_dst, dst))

bad = "multiple sources for the same target";

else

string_list_insert(&src_for_dst, dst);

if (bad) {

if (ignore_errors) {

if (--argc > 0) {

memmove(source + i, source + i + 1,

(argc - i) * sizeof(char *));

memmove(destination + i,

destination + i + 1,

(argc - i) * sizeof(char *));

i--;

}

} else

die ("%s, source=%s, destination=%s",

bad, src, dst);

}

}

for (i = 0; i < argc; i++) {

const char *src = source[i], *dst = destination[i];

enum update_mode mode = modes[i];

int pos;

if (show_only || verbose)

printf("Renaming %s to %s\n", src, dst);

if (!show_only && mode != INDEX &&

rename(src, dst) < 0 && !ignore_errors)

die_errno ("renaming '%s' failed", src);

if (mode == WORKING_DIRECTORY)

continue;

pos = cache_name_pos(src, strlen(src));

assert(pos >= 0);

if (!show_only)

rename_cache_entry_at(pos, dst);

}

if (active_cache_changed) {

if (write_cache(newfd, active_cache, active_nr) ||

commit_locked_index(&lock_file))

die("Unable to write new index file");

}

return 0;

}