Function renameSaveFile

src/library/fileio/SaveFileList.cpp:237–279

}

int renameSaveFile(const char *oldfile, const char *newfile)
{
    std::lock_guard<std::mutex> lock(getSaveFileListMutex());

    char* canonnewfile = SaveFile::canonicalizeFile(newfile);
    if (!canonnewfile)
        return -1;
    std::string newfilestr(canonnewfile);
    free(canonnewfile);

    /* Remove the newfile if present */
    auto& savefiles = getSaveFileList();
    savefiles.remove_if([newfile](const std::unique_ptr<SaveFile>& s) { return (s->isSameFile(newfile));});

    for (const auto& savefile : savefiles) {
        if (savefile->isSameFile(oldfile)) {
            savefile->filename = newfilestr;
            
            /* Create a savefile for the old path with `removed` flag, so that
             * future attempts at reading it will return a missing file, instead
             * of using the original file. */
            savefiles.emplace_front(new SaveFile(oldfile));
            savefiles.front()->remove();
            return 0;
        }
    }

    /* If the file is not registered, create a savefile */
    if (isSaveFile(newfile)) {
        savefiles.emplace_front(new SaveFile(oldfile));
        savefiles.front()->open("rb");
        savefiles.front()->filename = newfilestr;

        /* Create a dummy entry to mark the old file as removed */
        savefiles.emplace_front(new SaveFile(oldfile));
        savefiles.front()->remove();

        GlobalNative gn;
        return access(oldfile, W_OK);
    }

    return 1;
}

const SaveFile* getSaveFile(const char *file)
{