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Add asar.stat method.

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This commit is contained in:
Cheng Zhao 2014-09-24 12:02:33 +08:00
parent 0d09143a77
commit 8199ad2ae6
3 changed files with 67 additions and 10 deletions
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47
atom/common/asar/archive.cc
View file

@ -42,6 +42,24 @@ bool GetNodeFromPath(std::string path,
return GetChildNode(path, root, out);
}
bool FillFileInfoWithNode(Archive::FileInfo* info,
uint32 header_size,
const base::DictionaryValue* node) {
std::string offset;
if (!node->GetString("offset", &offset))
return false;
if (!base::StringToUint64(offset, &info->offset))
return false;
int size;
if (!node->GetInteger("size", &size))
return false;
info->offset += header_size;
info->size = static_cast<uint32>(size);
return true;
}
} // namespace
Archive::Archive(const base::FilePath& path)
@ -113,19 +131,30 @@ bool Archive::GetFileInfo(const base::FilePath& path, FileInfo* info) {
if (node->GetString("link", &link))
return GetFileInfo(base::FilePath::FromUTF8Unsafe(link), info);
std::string offset;
if (!node->GetString("offset", &offset))
return false;
if (!base::StringToUint64(offset, &info->offset))
return FillFileInfoWithNode(info, header_size_, node);
}
bool Archive::Stat(const base::FilePath& path, Stats* stats) {
if (!header_)
return false;
int size;
if (!node->GetInteger("size", &size))
const base::DictionaryValue* node;
if (!GetNodeFromPath(path.AsUTF8Unsafe(), header_.get(), &node))
return false;
info->offset += header_size_;
info->size = static_cast<uint32>(size);
return true;
if (node->HasKey("link")) {
stats->is_file = false;
stats->is_link = true;
return true;
}
if (node->HasKey("files")) {
stats->is_file = false;
stats->is_directory = true;
return true;
}
return FillFileInfoWithNode(stats, header_size_, node);
}
} // namespace asar

11
atom/common/asar/archive.h
View file

@ -18,10 +18,18 @@ namespace asar {
class Archive : public base::RefCounted<Archive> {
public:
struct FileInfo {
FileInfo() : size(0), offset(0) {}
uint32 size;
uint64 offset;
};
struct Stats : public FileInfo {
Stats() : is_file(true), is_directory(false), is_link(false) {}
bool is_file;
bool is_directory;
bool is_link;
};
explicit Archive(const base::FilePath& path);
// Read and parse the header.
@ -30,6 +38,9 @@ class Archive : public base::RefCounted<Archive> {
// Get the info of a file.
bool GetFileInfo(const base::FilePath& path, FileInfo* info);
// Fs.stat(path).
bool Stat(const base::FilePath& path, Stats* stats);
base::FilePath path() const { return path_; }
base::DictionaryValue* header() const { return header_.get(); }