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Add a way to copy a file in archive into filesystem.

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This commit is contained in:
Cheng Zhao 2014-09-25 16:56:50 +08:00
parent e5e1e207b6
commit c95a93ef1c
6 changed files with 138 additions and 1 deletions
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21
atom/common/asar/archive.cc
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@ -7,10 +7,12 @@
#include <string>
#include <vector>
#include "atom/common/asar/scoped_temporary_file.h"
#include "base/files/file.h"
#include "base/logging.h"
#include "base/pickle.h"
#include "base/json/json_string_value_serializer.h"
#include "base/stl_util.h"
#include "base/strings/string_number_conversions.h"
namespace asar {
@ -181,4 +183,23 @@ bool Archive::Readdir(const base::FilePath& path,
return true;
}
bool Archive::CopyFileOut(const base::FilePath& path, base::FilePath* out) {
if (ContainsKey(external_files_, path)) {
*out = external_files_[path]->path();
return true;
}
FileInfo info;
if (!GetFileInfo(path, &info))
return false;
scoped_refptr<ScopedTemporaryFile> temp_file(new ScopedTemporaryFile);
if (!temp_file->InitFromFile(path_, info.offset, info.size))
return false;
external_files_[path] = temp_file;
*out = temp_file->path();
return true;
}
} // namespace asar