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
|
// file : libbutl/filesystem.ixx -*- C++ -*-
// copyright : Copyright (c) 2014-2017 Code Synthesis Ltd
// license : MIT; see accompanying LICENSE file
#include <errno.h> // E*
namespace butl
{
inline bool
dir_empty (const dir_path& d)
{
// @@ Could 0 size be a valid and faster way?
//
return dir_iterator (d) == dir_iterator ();
}
inline bool
file_empty (const path& f)
{
auto p (path_entry (f));
if (p.first && p.second.type == entry_type::regular)
return p.second.size == 0;
throw_generic_error (
p.first
? (p.second.type == entry_type::directory ? EISDIR : EINVAL)
: ENOENT);
}
inline rmdir_status
try_rmdir_r (const dir_path& p, bool ignore_error)
{
bool e (dir_exists (p)); //@@ What if it exists but is not a directory?
if (e)
rmdir_r (p, true, ignore_error);
return e ? rmdir_status::success : rmdir_status::not_exist;
}
// auto_rm
//
template <typename P>
inline auto_rm<P>::
auto_rm (auto_rm&& x)
: path_ (std::move (x.path_))
{
x.cancel ();
}
template <typename P>
inline auto_rm<P>& auto_rm<P>::
operator= (auto_rm&& x)
{
if (this != &x)
{
path_ = std::move (x.path_);
x.cancel ();
}
return *this;
}
template <>
inline auto_rm<path>::
~auto_rm () {if (!path_.empty ()) try_rmfile (path_, true);}
template <>
inline auto_rm<dir_path>::
~auto_rm () {if (!path_.empty ()) try_rmdir_r (path_, true);}
// cpflags
//
inline cpflags operator& (cpflags x, cpflags y) {return x &= y;}
inline cpflags operator| (cpflags x, cpflags y) {return x |= y;}
inline cpflags operator&= (cpflags& x, cpflags y)
{
return x = static_cast<cpflags> (
static_cast<std::uint16_t> (x) &
static_cast<std::uint16_t> (y));
}
inline cpflags operator|= (cpflags& x, cpflags y)
{
return x = static_cast<cpflags> (
static_cast<std::uint16_t> (x) |
static_cast<std::uint16_t> (y));
}
// permissions
//
inline permissions operator& (permissions x, permissions y) {return x &= y;}
inline permissions operator| (permissions x, permissions y) {return x |= y;}
inline permissions operator&= (permissions& x, permissions y)
{
return x = static_cast<permissions> (
static_cast<std::uint16_t> (x) &
static_cast<std::uint16_t> (y));
}
inline permissions operator|= (permissions& x, permissions y)
{
return x = static_cast<permissions> (
static_cast<std::uint16_t> (x) |
static_cast<std::uint16_t> (y));
}
// dir_entry
//
inline entry_type dir_entry::
ltype () const
{
return t_ != entry_type::unknown ? t_ : (t_ = type (false));
}
inline entry_type dir_entry::
type () const
{
entry_type t (ltype ());
return t != entry_type::symlink
? t
: lt_ != entry_type::unknown ? lt_ : (lt_ = type (true));
}
// dir_iterator
//
inline dir_iterator::
dir_iterator (dir_iterator&& x) noexcept
: e_ (std::move (x.e_)), h_ (x.h_)
{
#ifndef _WIN32
x.h_ = nullptr;
#else
x.h_ = -1;
#endif
}
inline bool
operator== (const dir_iterator& x, const dir_iterator& y)
{
return x.h_ == y.h_;
}
inline bool
operator!= (const dir_iterator& x, const dir_iterator& y)
{
return !(x == y);
}
inline dir_iterator
begin (dir_iterator& i)
{
return std::move (i);
}
inline dir_iterator
end (const dir_iterator&)
{
return dir_iterator ();
}
}
|
