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
|
// file : tests/cpfile/driver.cxx -*- C++ -*-
// copyright : Copyright (c) 2014-2016 Code Synthesis Ltd
// license : MIT; see accompanying LICENSE file
#include <string>
#include <cassert>
#include <fstream>
#include <system_error>
#include <butl/path>
#include <butl/filesystem>
using namespace std;
using namespace butl;
static const char text1[] = "ABCDEF\nXYZ";
static const char text2[] = "12345\nDEF";
static const char text3[] = "XAB\r\n9";
static string
from_file (const path& f)
{
ifstream ifs;
ifs.exceptions (fstream::badbit | fstream::failbit);
ifs.open (f.string (), ios::binary);
string s;
getline (ifs, s, '\0');
return s;
}
static void
to_file (const path& f, const char* s)
{
ofstream ofs;
ofs.exceptions (fstream::badbit | fstream::failbit);
ofs.open (f.string (), ios::binary);
ofs << s;
}
int
main ()
{
dir_path td (dir_path::temp_directory () / dir_path ("butl-cpfile"));
// Recreate the temporary directory (that possibly exists from the previous
// faulty run) for the test files. Delete the directory only if the test
// succeeds to simplify the failure research.
//
try_rmdir_r (td);
assert (try_mkdir (td) == mkdir_status::success);
path from (td / path ("from"));
to_file (from, text1);
permissions p (path_permissions (from));
path_permissions (from, permissions::ru | permissions::xu);
// Check that content and permissions of newly created destination file are
// the same as that ones of the source file.
//
path to (td / path ("to"));
cpfile (from, to, cpflags::none);
assert (from_file (to) == text1);
assert (path_permissions (to) == path_permissions (from));
// Check that permissions of an existent destination file stays intact if
// their overwrite is not requested.
//
path_permissions (to, p);
cpfile (from, to, cpflags::overwrite_content);
assert (from_file (to) == text1);
assert (path_permissions (to) == p);
// Check that permissions of an existent destination file get overwritten if
// requested.
//
cpfile (
from, to, cpflags::overwrite_content | cpflags::overwrite_permissions);
assert (from_file (to) == text1);
assert (path_permissions (to) == path_permissions (from));
path_permissions (to, p);
path_permissions (from, p);
try
{
cpfile (from, to, cpflags::none);
assert (false);
}
catch (const system_error&)
{
}
// Copy to the directory.
//
dir_path sd (td / dir_path ("sub"));
assert (try_mkdir (sd) == mkdir_status::success);
cpfile (from, sd, cpflags::none);
assert (from_file (sd / path ("from")) == text1);
// Check that a hard link to the destination file is preserved.
//
path hlink (td / path ("hlink"));
mkhardlink (to, hlink);
to_file (hlink, text1);
to_file (from, text2);
cpfile (from, to, cpflags::overwrite_content);
assert (from_file (hlink) == text2);
#ifndef _WIN32
// Check that 'from' being a symbolic link is properly resolved.
//
path fslink (td / path ("fslink"));
mksymlink (from, fslink);
cpfile (fslink, to, cpflags::overwrite_content);
// Make sure 'to' is not a symbolic link to 'from' and from_file() just
// follows it.
//
assert (try_rmfile (from) == rmfile_status::success);
assert (from_file (to) == text2);
// Check that 'to' being a symbolic link is properly resolved.
//
path tslink (td / path ("tslink"));
mksymlink (to, tslink);
to_file (from, text3);
cpfile (from, tslink, cpflags::overwrite_content);
assert (from_file (to) == text3);
// Check that permissions are properly overwritten when 'to' is a symbolic
// link.
//
to_file (from, text1);
path_permissions (from, permissions::ru | permissions::xu);
cpfile (
from, tslink, cpflags::overwrite_content | cpflags::overwrite_permissions);
assert (from_file (to) == text1);
assert (path_permissions (to) == path_permissions (from));
path_permissions (to, p);
path_permissions (from, p);
// Check that no-overwrite file copy fails even if 'to' symlink points to
// non-existent file.
//
assert (try_rmfile (to) == rmfile_status::success);
try
{
cpfile (from, tslink, cpflags::none);
assert (false);
}
catch (const system_error&)
{
}
// Check that copy fail if 'from' symlink points to non-existent file.
//
try
{
cpfile (tslink, from, cpflags::none);
assert (false);
}
catch (const system_error&)
{
}
#endif
rmdir_r (td);
}
|
