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
|
/*:*
* ggaze — local ./Trash bin
*
* Implements the lazy .Trash folder, collision-suffixed binning, permanent
* delete, and one-level restore. Plain-C.
*
* Copyright (c) 2026 ggaze contributors
* SPDX-License-Identifier: GPL-3.0-or-later
*:*/
#include "trash.h"
struct Trash {
GFile *p_dir; /* the shoot dir; .Trash = p_dir/.Trash */
GFile *p_last_src; /* original path of the last binned file */
GFile *p_last_dst; /* .Trash path of the last binned file */
};
static GFile *
_trash_dir(Trash *p_t) {
return (g_file_get_child(p_t->p_dir, ".Trash"));
}
/* Ensure .Trash exists (lazily). */
static gboolean
_ensure_trash_dir(Trash *p_t, GError **p_err) {
GFile *p_td = _trash_dir(p_t);
gboolean b_ok = g_file_make_directory_with_parents(p_td, NULL, p_err);
if (!b_ok) {
if (p_err != NULL &&
g_error_matches(*p_err, G_IO_ERROR, G_IO_ERROR_EXISTS)) {
g_clear_error(p_err);
b_ok = TRUE;
}
}
g_object_unref(p_td);
return (b_ok);
}
/* Find a non-colliding name in .Trash for c_basename. Caller frees the path. */
static char *
_unique_trash_name(Trash *p_t, const char *c_basename) {
GFile *p_td = _trash_dir(p_t);
char *c_name = g_strdup(c_basename);
for (guint u_n = 1; u_n < 100000; u_n++) {
GFile *p_candidate = g_file_get_child(p_td, c_name);
if (!g_file_query_exists(p_candidate, NULL)) {
g_object_unref(p_candidate);
g_object_unref(p_td);
return (c_name); /* the basename is the unique name */
}
g_object_unref(p_candidate);
g_free(c_name);
c_name = g_strdup_printf("%s-%u", c_basename, u_n);
}
g_free(c_name);
g_object_unref(p_td);
return (NULL);
}
Trash *
trash_new(GFile *p_shoot_dir) {
g_return_val_if_fail(G_IS_FILE(p_shoot_dir), NULL);
Trash *p_t = g_new(Trash, 1);
p_t->p_dir = (GFile *)g_object_ref(p_shoot_dir);
p_t->p_last_src = NULL;
p_t->p_last_dst = NULL;
return (p_t);
}
void
trash_delete(Trash *p_t) {
if (p_t == NULL) {
return;
}
g_clear_object(&p_t->p_last_dst);
g_clear_object(&p_t->p_last_src);
g_clear_object(&p_t->p_dir);
g_free(p_t);
}
gboolean
trash_bin(Trash *p_t, GFile *p_file, GError **p_err) {
g_return_val_if_fail(p_t != NULL, FALSE);
g_return_val_if_fail(G_IS_FILE(p_file), FALSE);
if (!_ensure_trash_dir(p_t, p_err)) {
return (FALSE);
}
char *c_base = g_file_get_basename(p_file);
char *c_name = _unique_trash_name(p_t, c_base);
g_free(c_base);
if (c_name == NULL) {
g_set_error(p_err, G_IO_ERROR, G_IO_ERROR_TOO_MANY_OPEN_FILES,
"could not find a non-colliding trash name");
return (FALSE);
}
GFile *p_td = _trash_dir(p_t);
GFile *p_dst = g_file_get_child(p_td, c_name);
g_free(c_name);
g_object_unref(p_td);
gboolean b_ok = g_file_move(p_file, p_dst, G_FILE_COPY_NOFOLLOW_SYMLINKS,
NULL, NULL, NULL, p_err);
if (b_ok) {
g_clear_object(&p_t->p_last_src);
g_clear_object(&p_t->p_last_dst);
p_t->p_last_src = (GFile *)g_object_ref(p_file);
p_t->p_last_dst = p_dst; /* take ownership (ref'd by get_child) */
} else {
g_object_unref(p_dst);
}
return (b_ok);
}
gboolean
trash_permanently_delete(Trash *p_t, GFile *p_file, GError **p_err) {
(void)p_t;
g_return_val_if_fail(G_IS_FILE(p_file), FALSE);
return (g_file_delete(p_file, NULL, p_err));
}
gboolean
trash_restore_last(Trash *p_t, GError **p_err) {
g_return_val_if_fail(p_t != NULL, FALSE);
if (p_t->p_last_dst == NULL || p_t->p_last_src == NULL) {
return (FALSE);
}
gboolean b_ok =
g_file_move(p_t->p_last_dst, p_t->p_last_src,
G_FILE_COPY_NOFOLLOW_SYMLINKS, NULL, NULL, NULL, p_err);
if (b_ok) {
g_clear_object(&p_t->p_last_src);
g_clear_object(&p_t->p_last_dst);
}
return (b_ok);
}
gboolean
trash_can_undo(Trash *p_t) {
g_return_val_if_fail(p_t != NULL, FALSE);
return (p_t->p_last_dst != NULL);
}
|
