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
|
// Copyright (c) 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/files/file_enumerator.h"
#include <dirent.h>
#include <errno.h>
#include <fnmatch.h>
#include "base/logging.h"
#include "base/threading/thread_restrictions.h"
namespace base {
// FileEnumerator::FileInfo ----------------------------------------------------
FileEnumerator::FileInfo::FileInfo() {
memset(&stat_, 0, sizeof(stat_));
}
bool FileEnumerator::FileInfo::IsDirectory() const {
return S_ISDIR(stat_.st_mode);
}
FilePath FileEnumerator::FileInfo::GetName() const {
return filename_;
}
int64 FileEnumerator::FileInfo::GetSize() const {
return stat_.st_size;
}
base::Time FileEnumerator::FileInfo::GetLastModifiedTime() const {
return base::Time::FromTimeT(stat_.st_mtime);
}
// FileEnumerator --------------------------------------------------------------
FileEnumerator::FileEnumerator(const FilePath& root_path,
bool recursive,
int file_type)
: current_directory_entry_(0),
root_path_(root_path),
recursive_(recursive),
file_type_(file_type) {
// INCLUDE_DOT_DOT must not be specified if recursive.
DCHECK(!(recursive && (INCLUDE_DOT_DOT & file_type_)));
pending_paths_.push(root_path);
}
FileEnumerator::FileEnumerator(const FilePath& root_path,
bool recursive,
int file_type,
const FilePath::StringType& pattern)
: current_directory_entry_(0),
root_path_(root_path),
recursive_(recursive),
file_type_(file_type),
pattern_(root_path.Append(pattern).value()) {
// INCLUDE_DOT_DOT must not be specified if recursive.
DCHECK(!(recursive && (INCLUDE_DOT_DOT & file_type_)));
// The Windows version of this code appends the pattern to the root_path,
// potentially only matching against items in the top-most directory.
// Do the same here.
if (pattern.empty())
pattern_ = FilePath::StringType();
pending_paths_.push(root_path);
}
FileEnumerator::~FileEnumerator() {
}
FilePath FileEnumerator::Next() {
++current_directory_entry_;
// While we've exhausted the entries in the current directory, do the next
while (current_directory_entry_ >= directory_entries_.size()) {
if (pending_paths_.empty())
return FilePath();
root_path_ = pending_paths_.top();
root_path_ = root_path_.StripTrailingSeparators();
pending_paths_.pop();
std::vector<FileInfo> entries;
if (!ReadDirectory(&entries, root_path_, file_type_ & SHOW_SYM_LINKS))
continue;
directory_entries_.clear();
current_directory_entry_ = 0;
for (std::vector<FileInfo>::const_iterator i = entries.begin();
i != entries.end(); ++i) {
FilePath full_path = root_path_.Append(i->filename_);
if (ShouldSkip(full_path))
continue;
if (pattern_.size() &&
fnmatch(pattern_.c_str(), full_path.value().c_str(), FNM_NOESCAPE))
continue;
if (recursive_ && S_ISDIR(i->stat_.st_mode))
pending_paths_.push(full_path);
if ((S_ISDIR(i->stat_.st_mode) && (file_type_ & DIRECTORIES)) ||
(!S_ISDIR(i->stat_.st_mode) && (file_type_ & FILES)))
directory_entries_.push_back(*i);
}
}
return root_path_.Append(
directory_entries_[current_directory_entry_].filename_);
}
FileEnumerator::FileInfo FileEnumerator::GetInfo() const {
return directory_entries_[current_directory_entry_];
}
bool FileEnumerator::ReadDirectory(std::vector<FileInfo>* entries,
const FilePath& source, bool show_links) {
base::ThreadRestrictions::AssertIOAllowed();
DIR* dir = opendir(source.value().c_str());
if (!dir)
return false;
#if !defined(OS_LINUX) && !defined(OS_MACOSX) && !defined(OS_BSD) && \
!defined(OS_SOLARIS) && !defined(OS_ANDROID)
#error Port warning: depending on the definition of struct dirent, \
additional space for pathname may be needed
#endif
struct dirent dent_buf;
struct dirent* dent;
while (readdir_r(dir, &dent_buf, &dent) == 0 && dent) {
FileInfo info;
info.filename_ = FilePath(dent->d_name);
FilePath full_name = source.Append(dent->d_name);
int ret;
if (show_links)
ret = lstat(full_name.value().c_str(), &info.stat_);
else
ret = stat(full_name.value().c_str(), &info.stat_);
if (ret < 0) {
// Print the stat() error message unless it was ENOENT and we're
// following symlinks.
if (!(errno == ENOENT && !show_links)) {
DPLOG(ERROR) << "Couldn't stat "
<< source.Append(dent->d_name).value();
}
memset(&info.stat_, 0, sizeof(info.stat_));
}
entries->push_back(info);
}
closedir(dir);
return true;
}
} // namespace base
|
