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
|
/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ms_glob.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: charles <charles.cabergs@gmail.com> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2020/04/05 11:44:07 by charles #+# #+# */
/* Updated: 2020/06/09 16:20:22 by charles ### ########.fr */
/* */
/* ************************************************************************** */
#include "ms_glob.h"
/*
** \brief Match vector start size
** \note From ~: average file in directory is 8
** From /: average file in directory is 15
*/
#define MATCHES_VEC_START_SIZE 16
/*
** \brief Glob directory iteration function
** for subdirectory matches
** \param dirname Current directory name
** \param entry Current directory entry
** \param param Contain matches vector and pattern to match
** \param subdir_pattern Pattern left after '/' in parrent pattern
** \return 0 on success, -1 on error
*/
static int glob_iter_subdir(
char *dirname,
struct dirent *entry,
struct s_glob_param *param,
char *subdir_pattern
)
{
char subdir_name[PATH_MAX];
t_ftvec *subdir_matches;
size_t i;
ft_strcat3(ft_strcpy(subdir_name, dirname), "/", entry->d_name);
chdir(subdir_name);
subdir_matches = glob_matches(subdir_pattern);
chdir(dirname);
if (subdir_matches == NULL)
return (-1);
i = 0;
while (i < subdir_matches->size)
if (ft_vecpush_safe(param->matches, ft_strjoin3(entry->d_name,
"/", subdir_matches->data[i++])) == NULL)
{
ft_vecdestroy(subdir_matches, free);
return (-1);
}
ft_vecdestroy(subdir_matches, free);
subdir_pattern[-1] = '/';
return (0);
}
/*
** \brief Glob directory iteration function
** \param dirname Current directory name
** \param entry Current directory entry
** \param param Contain matches vector and pattern to match
** \return 0 on success or -1 on error
*/
static int glob_iter(
char *dirname,
struct dirent *entry,
struct s_glob_param *param
)
{
char *subdir_pattern;
if (param->pattern[0] != '.' && entry->d_name[0] == '.')
return (0);
if ((subdir_pattern = ft_strchr(param->pattern, '/')) != NULL)
*subdir_pattern++ = '\0';
if (!ft_fnmatch(param->pattern, entry->d_name))
{
if (subdir_pattern != NULL)
subdir_pattern[-1] = '/';
return (0);
}
if (subdir_pattern != NULL)
{
if (entry->d_type != DT_DIR)
{
subdir_pattern[-1] = '/';
return (0);
}
return (glob_iter_subdir(dirname, entry, param, subdir_pattern));
}
if (ft_vecpush_safe(param->matches, ft_strdup(entry->d_name)) == NULL)
return (-1);
return (0);
}
/*
** \brief Fill a vector with all match
** \param pattern Pattern to match
** \return Matches vector or NULL on error
*/
t_ftvec *glob_matches(char *pattern)
{
char dirname[PATH_MAX];
struct s_glob_param param;
if (getcwd(dirname, PATH_MAX) == NULL)
return (NULL);
if ((param.pattern = ft_strdup(pattern)) == NULL ||
(param.matches = ft_vecnew(MATCHES_VEC_START_SIZE)) == NULL)
{
free(param.pattern);
return (NULL);
}
if (utils_directory_iter(dirname, ¶m,
(t_directory_iter_func)glob_iter) == -1)
{
free(param.pattern);
ft_vecdestroy(param.matches, free);
return (NULL);
}
free(param.pattern);
return (param.matches);
}
/*
** \brief Search files which match a pattern in the current directory
** \param pattern Pattern to match
** \return Space separated list of match,
** pattern if no match found,
** NULL on error
*/
char *ms_glob(char *pattern)
{
char *join;
t_ftvec *matches;
if ((matches = glob_matches(pattern)) == NULL)
return (NULL);
ft_vecsort(matches, ft_compar_str);
if (ft_vecpush(matches, NULL) == NULL ||
(join = ft_strsjoin((char**)matches->data, " ")) == NULL)
{
ft_vecdestroy(matches, free);
return (NULL);
}
ft_vecdestroy(matches, free);
if (*join == '\0')
{
free(join);
return (ft_strdup(pattern));
}
return (join);
}
|
