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
|
// Copyright Epic Games, Inc. All Rights Reserved.
#include "copy.h"
#include <zencore/filesystem.h>
#include <zencore/fmtutils.h>
#include <zencore/logging.h>
#include <zencore/string.h>
#include <zencore/timer.h>
namespace zen {
CopyCommand::CopyCommand()
{
m_Options.add_options()("h,help", "Print help");
m_Options.add_options()("no-clone", "Do not perform block clone", cxxopts::value(m_NoClone)->default_value("false"));
m_Options.add_option("", "s", "source", "Copy source", cxxopts::value(m_CopySource), "<file/directory>");
m_Options.add_option("", "t", "target", "Copy target", cxxopts::value(m_CopyTarget), "<file/directory>");
m_Options.parse_positional({"source", "target"});
}
CopyCommand::~CopyCommand() = default;
int
CopyCommand::Run(const ZenCliOptions& GlobalOptions, int argc, char** argv)
{
ZEN_UNUSED(GlobalOptions);
if (!ZenCmdBase::ParseOptions(argc, argv))
{
return 0;
}
// Validate arguments
if (m_CopySource.empty())
throw std::runtime_error("No source specified");
if (m_CopyTarget.empty())
throw std::runtime_error("No target specified");
std::filesystem::path FromPath;
std::filesystem::path ToPath;
FromPath = m_CopySource;
ToPath = m_CopyTarget;
const bool IsFileCopy = std::filesystem::is_regular_file(m_CopySource);
const bool IsDirCopy = std::filesystem::is_directory(m_CopySource);
if (!IsFileCopy && !IsDirCopy)
{
throw std::runtime_error("Invalid source specification (neither directory nor file)");
}
if (IsFileCopy && IsDirCopy)
{
throw std::runtime_error("Invalid source specification (both directory AND file!?)");
}
if (IsDirCopy)
{
if (std::filesystem::exists(ToPath))
{
const bool IsTargetDir = std::filesystem::is_directory(ToPath);
if (!IsTargetDir)
{
if (std::filesystem::is_regular_file(ToPath))
{
throw std::runtime_error("Attempted copy of directory into file");
}
}
}
else
{
std::filesystem::create_directories(ToPath);
}
// Multi file copy
ZEN_CONSOLE("copying {} -> {}", FromPath, ToPath);
zen::Stopwatch Timer;
struct CopyVisitor : public FileSystemTraversal::TreeVisitor
{
CopyVisitor(std::filesystem::path InBasePath, zen::CopyFileOptions InCopyOptions)
: BasePath(InBasePath)
, CopyOptions(InCopyOptions)
{
}
virtual void VisitFile(const std::filesystem::path& Parent, const path_view& File, uint64_t FileSize) override
{
ZEN_UNUSED(FileSize);
std::error_code Ec;
const std::filesystem::path Relative = std::filesystem::relative(Parent, BasePath, Ec);
if (Ec)
{
FailedFileCount++;
}
else
{
const std::filesystem::path FromPath = Parent / File;
const std::filesystem::path ToPath = TargetPath / Relative / File;
try
{
zen::CreateDirectories(TargetPath / Relative);
if (zen::CopyFile(FromPath, ToPath, CopyOptions))
{
++FileCount;
ByteCount += FileSize;
}
else
{
throw std::logic_error("CopyFile failed in an unexpected way");
}
}
catch (std::exception& Ex)
{
++FailedFileCount;
ZEN_CONSOLE("Error: failed to copy '{}' to '{}': '{}'", FromPath, ToPath, Ex.what());
}
}
}
virtual bool VisitDirectory(const std::filesystem::path&, const path_view&) override { return true; }
std::filesystem::path BasePath;
std::filesystem::path TargetPath;
zen::CopyFileOptions CopyOptions;
int FileCount = 0;
uint64_t ByteCount = 0;
int FailedFileCount = 0;
};
zen::CopyFileOptions CopyOptions;
CopyOptions.EnableClone = !m_NoClone;
CopyVisitor Visitor{FromPath, CopyOptions};
Visitor.TargetPath = ToPath;
FileSystemTraversal Traversal;
Traversal.TraverseFileSystem(FromPath, Visitor);
ZEN_CONSOLE("Copy of {} files ({}) completed in {} ({})",
Visitor.FileCount,
NiceBytes(Visitor.ByteCount),
zen::NiceTimeSpanMs(Timer.GetElapsedTimeMs()),
zen::NiceRate(Visitor.ByteCount, (uint32_t)Timer.GetElapsedTimeMs()));
if (Visitor.FailedFileCount)
{
ZEN_CONSOLE("{} file copy operations FAILED");
return 1;
}
}
else
{
// Single file copy
zen::Stopwatch Timer;
zen::CopyFileOptions CopyOptions;
CopyOptions.EnableClone = !m_NoClone;
try
{
zen::CreateDirectories(ToPath.parent_path());
if (zen::CopyFile(FromPath, ToPath, CopyOptions))
{
ZEN_CONSOLE("Copy completed in {}", zen::NiceTimeSpanMs(Timer.GetElapsedTimeMs()));
}
else
{
throw std::logic_error("CopyFile failed in an unexpected way");
}
}
catch (std::exception& Ex)
{
ZEN_CONSOLE("Error: failed to copy '{}' to '{}': '{}'", FromPath, ToPath, Ex.what());
return 1;
}
}
return 0;
}
} // namespace zen
|