void unpackJars()

in src/main/cpp/launcher/windows/src/JavaUtils.c [530:609]
67 lines of code
14 McCabe index (conditional complexity)

void unpackJars(LauncherProperties * props, WCHAR * jvmDir, WCHAR * startDir, WCHAR * unpack200exe) {
    DWORD attrs;
    DWORD dwError;
    
    if(!isOK(props)) return;
    attrs = GetFileAttributesW(startDir);
    if(attrs==INVALID_FILE_ATTRIBUTES) {
        writeErrorA(props, OUTPUT_LEVEL_DEBUG, 1, "Error! Can`t get attributes of the file : ", startDir, GetLastError());
        return;
    }
    if(attrs & FILE_ATTRIBUTE_DIRECTORY) { // is directory
        WIN32_FIND_DATAW FindFileData;
        HANDLE hFind = INVALID_HANDLE_VALUE;
        
        WCHAR * DirSpec = appendStringW(appendStringW(NULL, startDir), L"\\*" );
        
        // Find the first file in the directory.
        hFind = FindFirstFileW(DirSpec, &FindFileData);
        
        if (hFind == INVALID_HANDLE_VALUE) {
            writeErrorA(props, OUTPUT_LEVEL_DEBUG, 1, "Error! Can`t file with pattern ", DirSpec, GetLastError());
        }
        else {
            // List all the other files in the directory.
            writeMessageA(props, OUTPUT_LEVEL_DEBUG, 0, "... listing directory ", 0);
            writeMessageW(props, OUTPUT_LEVEL_DEBUG, 0, startDir, 1);
            
            while (FindNextFileW(hFind, &FindFileData) != 0 && isOK(props)) {
                if(lstrcmpW(FindFileData.cFileName, L".")!=0 &&
                        lstrcmpW(FindFileData.cFileName, L"..")!=0) {
                    WCHAR * child = NULL;
                    
                    child = appendStringW(appendStringW(appendStringW(NULL, startDir), FILE_SEP), FindFileData.cFileName);
                    if(isDirectory(child)) {
                        writeMessageA(props, OUTPUT_LEVEL_DEBUG, 0, "... directory : ", 0);
                        writeMessageW(props, OUTPUT_LEVEL_DEBUG, 0, child, 1);
                        unpackJars(props, jvmDir, child, unpack200exe);
                    } else  if(searchW(FindFileData.cFileName, JAR_PACK_GZ_SUFFIX)!=NULL) {
                        WCHAR * jarName = appendStringW(appendStringW(
                                appendStringW(NULL, startDir), FILE_SEP),
                                appendStringNW(NULL, 0, FindFileData.cFileName,
                                getLengthW(FindFileData.cFileName) - getLengthW(PACK_GZ_SUFFIX)));
                        WCHAR * unpackCommand = NULL;
                        writeMessageA(props, OUTPUT_LEVEL_DEBUG, 0, "... packed jar : ", 0);
                        writeMessageW(props, OUTPUT_LEVEL_DEBUG, 0, child, 1);
                        writeMessageA(props, OUTPUT_LEVEL_DEBUG, 0, "... jar name : ", 0);
                        writeMessageW(props, OUTPUT_LEVEL_DEBUG, 0, jarName, 1);
                        
                        
                        appendCommandLineArgument(&unpackCommand, unpack200exe);
                        appendCommandLineArgument(&unpackCommand, L"-r"); // remove input file
                        appendCommandLineArgument(&unpackCommand, child);
                        appendCommandLineArgument(&unpackCommand, jarName);
                        
                        executeCommand(props, unpackCommand, NULL, UNPACK200_EXTRACTION_TIMEOUT, props->stdoutHandle, props->stderrHandle, NORMAL_PRIORITY_CLASS);
                        FREE(unpackCommand);
                        if(!isOK(props)) {
                            if(props->status==ERROR_PROCESS_TIMEOUT) {
                                writeMessageA(props, OUTPUT_LEVEL_DEBUG, 1, "... could not unpack file : timeout", 1);
                            } else {
                                writeMessageA(props, OUTPUT_LEVEL_DEBUG, 1, "... an error occured unpacking the file", 1);
                            }
                            props->exitCode = props->status;
                        }
                        FREE(jarName);
                    }
                    FREE(child);
                }
            }
            
            dwError = GetLastError();
            FindClose(hFind);
            if (dwError != ERROR_NO_MORE_FILES) {
                writeErrorA(props, OUTPUT_LEVEL_DEBUG, 1, "Error! Can`t find file with pattern : ", DirSpec, dwError);
            }
        }
        FREE(DirSpec);
    }
    
}