TempFileGuard.hpp

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#pragma once
 
#include "AstGlobal.h"
#include "AstUtil/StringView.hpp"
#include "AstUtil/FileSystem.hpp"
#include "AstUtil/Logger.hpp"
#include <string>
#include <system_error>
#include <utility>
 
AST_NAMESPACE_BEGIN
 
class TempFileGuard
{
public:
    TempFileGuard() = default;
 
    explicit TempFileGuard(StringView path)
        : path_(std::string(path))
    {}
 
    explicit TempFileGuard(const fs::path& path)
        : path_(path)
    {}
 
    explicit TempFileGuard(const std::string& path)
        : path_(path)
    {}
 
    ~TempFileGuard()
    {
        remove();
    }
 
    void remove()
    {
        if (path_.empty())
            return;
        std::error_code ec;
        fs::remove(path_, ec);
        if (ec) {
            aError(_("删除临时文件 '%s' 失败: %s"), path_.c_str(), ec.message().c_str());
        }
        path_ = fs::path();
    }
 
    void release()
    {
        path_ = fs::path();
    }
 
    bool isActive() const { return !path_.empty(); }
 
    bool exists() const
    {
        if (path_.empty())
            return false;
        std::error_code ec;
        return fs::exists(path_, ec);
    }
 
    fs::path& path() { return path_; }
 
    operator bool() const { return isActive(); }
 
protected:
    A_DISABLE_COPY(TempFileGuard);
 
    fs::path path_{};    
};
 
 
AST_NAMESPACE_END