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      1 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "base/test/test_file_util.h"
      6 
      7 #include <errno.h>
      8 #include <fcntl.h>
      9 #include <sys/types.h>
     10 #include <sys/stat.h>
     11 
     12 #include <string>
     13 
     14 #include "base/logging.h"
     15 #include "base/file_path.h"
     16 #include "base/file_util.h"
     17 #include "base/string_util.h"
     18 #include "base/utf_string_conversions.h"
     19 
     20 namespace file_util {
     21 
     22 bool DieFileDie(const FilePath& file, bool recurse) {
     23   // There is no need to workaround Windows problems on POSIX.
     24   // Just pass-through.
     25   return file_util::Delete(file, recurse);
     26 }
     27 
     28 // Mostly a verbatim copy of CopyDirectory
     29 bool CopyRecursiveDirNoCache(const FilePath& source_dir,
     30                              const FilePath& dest_dir) {
     31   char top_dir[PATH_MAX];
     32   if (base::strlcpy(top_dir, source_dir.value().c_str(),
     33                     arraysize(top_dir)) >= arraysize(top_dir)) {
     34     return false;
     35   }
     36 
     37   // This function does not properly handle destinations within the source
     38   FilePath real_to_path = dest_dir;
     39   if (PathExists(real_to_path)) {
     40     if (!AbsolutePath(&real_to_path))
     41       return false;
     42   } else {
     43     real_to_path = real_to_path.DirName();
     44     if (!AbsolutePath(&real_to_path))
     45       return false;
     46   }
     47   if (real_to_path.value().compare(0, source_dir.value().size(),
     48       source_dir.value()) == 0)
     49     return false;
     50 
     51   bool success = true;
     52   FileEnumerator::FILE_TYPE traverse_type =
     53       static_cast<FileEnumerator::FILE_TYPE>(FileEnumerator::FILES |
     54       FileEnumerator::SHOW_SYM_LINKS | FileEnumerator::DIRECTORIES);
     55   FileEnumerator traversal(source_dir, true, traverse_type);
     56 
     57   // dest_dir may not exist yet, start the loop with dest_dir
     58   FileEnumerator::FindInfo info;
     59   FilePath current = source_dir;
     60   if (stat(source_dir.value().c_str(), &info.stat) < 0) {
     61     LOG(ERROR) << "CopyRecursiveDirNoCache() couldn't stat source directory: "
     62         << source_dir.value() << " errno = " << errno;
     63     success = false;
     64   }
     65 
     66   while (success && !current.empty()) {
     67     // |current| is the source path, including source_dir, so paste
     68     // the suffix after source_dir onto dest_dir to create the target_path.
     69     std::string suffix(&current.value().c_str()[source_dir.value().size()]);
     70     // Strip the leading '/' (if any).
     71     if (!suffix.empty()) {
     72       DCHECK_EQ('/', suffix[0]);
     73       suffix.erase(0, 1);
     74     }
     75     const FilePath target_path = dest_dir.Append(suffix);
     76 
     77     if (S_ISDIR(info.stat.st_mode)) {
     78       if (mkdir(target_path.value().c_str(), info.stat.st_mode & 01777) != 0 &&
     79           errno != EEXIST) {
     80         LOG(ERROR) << "CopyRecursiveDirNoCache() couldn't create directory: " <<
     81             target_path.value() << " errno = " << errno;
     82         success = false;
     83       }
     84     } else if (S_ISREG(info.stat.st_mode)) {
     85       if (CopyFile(current, target_path)) {
     86         success = EvictFileFromSystemCache(target_path);
     87         DCHECK(success);
     88       } else {
     89         LOG(ERROR) << "CopyRecursiveDirNoCache() couldn't create file: " <<
     90             target_path.value();
     91         success = false;
     92       }
     93     } else {
     94       LOG(WARNING) << "CopyRecursiveDirNoCache() skipping non-regular file: " <<
     95           current.value();
     96     }
     97 
     98     current = traversal.Next();
     99     traversal.GetFindInfo(&info);
    100   }
    101 
    102   return success;
    103 }
    104 
    105 #if !defined(OS_LINUX) && !defined(OS_MACOSX)
    106 bool EvictFileFromSystemCache(const FilePath& file) {
    107   // There doesn't seem to be a POSIX way to cool the disk cache.
    108   NOTIMPLEMENTED();
    109   return false;
    110 }
    111 #endif
    112 
    113 std::wstring FilePathAsWString(const FilePath& path) {
    114   return UTF8ToWide(path.value());
    115 }
    116 FilePath WStringAsFilePath(const std::wstring& path) {
    117   return FilePath(WideToUTF8(path));
    118 }
    119 
    120 }  // namespace file_util
    121