windows bash runner that modifies PATH before running - fixes path/cmake/git for windows/visual studio/git_version.sh fuckery

chuchu.cpp

#define UNICODE
#define _UNICODE
#include <windows.h>
#include <wchar.h>
#include <string.h>
#define MAX_VAR 32767
int APIENTRY WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow){
	wchar_t path[MAX_VAR];
	GetEnvironmentVariable(L"PATH",path,MAX_VAR);
	wcsncat(path,L";C:\\Program Files\\Git\\usr\\bin",MAX_VAR);
	SetEnvironmentVariable(L"PATH",path);

	LPWSTR args=GetCommandLine();
	//skip argv0
	if(args[0]=='"'){
		args++;
		for(;args[0] != '"' && args[0] != '\0'; args++)
			;
	}
	for(;args[0] != ' ' && args[0] != '\0'; args++)
		;
	if(args[0]) args++;
	
	wchar_t* args2 = new wchar_t[7+wcslen(args)+1];
	wcscpy(args2,L"sh.exe ");
	wcscat(args2,args);

	STARTUPINFO si={sizeof(STARTUPINFO)};
	PROCESS_INFORMATION pi;
	
	si.dwFlags = STARTF_USESTDHANDLES;
	
	si.hStdInput = GetStdHandle(STD_INPUT_HANDLE);
	si.hStdOutput = GetStdHandle(STD_OUTPUT_HANDLE);
	si.hStdError = GetStdHandle(STD_ERROR_HANDLE);

	int res = CreateProcess(
		L"C:\\Program Files\\Git\\usr\\bin\\sh.exe", //lpApplicationName
		args2, //lpCommandLine
		NULL, //lpProcessAttributes
		NULL, //lpThreadAttributes
		TRUE, //bInheritHandles
		CREATE_NO_WINDOW, //dwCreationFlags
		NULL,//lpEnvironment
		NULL,//lpCurrentDirectory
		&si,//lpStartupInfo
		&pi//lpProcessInformation
		);
	if(res){
		WaitForSingleObject(pi.hProcess,INFINITE);
		CloseHandle(pi.hProcess);
		CloseHandle(pi.hThread);
	}
	delete[] args2;
	return res ? 0 : 1;
}