replace_image.cpp

#include <iostream>
#include <vector>
#include <string>
#include <map>
#include <initializer_list>
#include "fileList.h"

using namespace std;

bool split(const std::string& InPath,std::string& OutDir,std::string& OutName,std::string& OutExtension)
{
	bool status = false;
	size_t r_slash_index = InPath.find_last_of('\\');
	if(r_slash_index != std::string::npos)
	{
		std::string directory(InPath,0,r_slash_index);
		std::string name(InPath,r_slash_index+1,InPath.size()-r_slash_index);
		std::string extension;
		size_t last_dot_index = name.find_last_of('.');
		if(last_dot_index!=std::string::npos)
		{
			extension = std::string(name,last_dot_index+1,name.size()-last_dot_index);
			name = std::string(name,0,last_dot_index);
		}
		OutDir = directory;
		OutName = name;
		OutExtension = extension;
		status = true;
	}
	return status;
}

#define SHOW_REPLACED_MESSAGE 0
int main(int argc,char*argv[]){

	vector<string> fileTypeList{".png",".jpg"};

	std::string searchPath;
	if(argc > 1)
	{
		searchPath = std::string(argv[1]);
	}
	else
	{
		searchPath = fileList::getExecAbsPath();
	}
	std::cout<<"Search path:"<<searchPath<<std::endl;
	fileList search(searchPath,fileTypeList);
	search.start();
	auto GenWebpLambda = [](const std::vector<std::string>& in_file_list)
	{
		for(const auto& index : in_file_list)
		{
			std::string dir,name,extension;
			if(split(index,dir,name,extension))
			{
				// cout<<"dir:"<<dir<<"\tfilename:"<<name<<"\textension:"<<extension<<endl;
				std::string result = dir+"\\"+name+".webp";
				fstream _file;
	    		 _file.open(result,ios::in);
				if(!_file)
				{
					std::string command = "cwebp -q 85 "+index+" -o "+result;
					cout<<command<<endl;
					system(command.data());
				}
				else
				{
#if SHOW_REPLACED_MESSAGE
					cout<<index<<" is replicated"<<endl;
#endif
				}
				
			}
		}
	};

	for(const auto& extension:fileTypeList)
	{
		cout<<"replacing "<<extension<<" as webp..."<<endl;
		const auto& foundfileList = search.getTypeMatchFileList(extension);
		GenWebpLambda(foundfileList);
	}
}