WorkingDirectory.hpp

浏览该文件的文档.

 
 
#pragma once
 
#include "AstGlobal.h"
#include "AstUtil/StringView.hpp"
#include "AstUtil/PosixExt.hpp"
#include "AstUtil/Logger.hpp"
 
AST_NAMESPACE_BEGIN
 
class WorkingDirectory
{
public:
    explicit WorkingDirectory(StringView path)
        : oldpath_(), curpath_()
    {
        oldpath_ = posix::getcwd();
        int rc = posix::chdir(std::string(path).c_str());
        if(rc != 0){
            aError("failed to change working directory to %.*s", path.size(), path.data());
        }else{
            curpath_ = path;
        }
    }
    ~WorkingDirectory()
    {
        int rc = posix::chdir(oldpath_.c_str());
        if(rc != 0){
            aError("failed to change working directory to %s", oldpath_.c_str());
        }
    }
    operator bool() const { return isChanged(); }
 
    bool isChanged() const { return !curpath_.empty(); }
 
    StringView getCurrentPath() const { return curpath_; }
protected:
    A_DISABLE_COPY(WorkingDirectory);
    std::string oldpath_;
    StringView curpath_;
};
 
 
AST_NAMESPACE_END