Method backupFileInSequence

source/core/StarFile.cpp:105–115

}

void File::backupFileInSequence(String const& initialFile, String const& targetFile, unsigned maximumBackups, String const& backupExtensionPrefix) {
  for (unsigned i = maximumBackups; i > 0; --i) {
    bool initial = i == 1;
    String const& sourceFile = initial ? initialFile : targetFile;
    String curExtension = initial ? "" : strf("{}{}", backupExtensionPrefix, i - 1);
    String nextExtension = strf("{}{}", backupExtensionPrefix, i);

    if (File::isFile(sourceFile + curExtension))
      File::copy(sourceFile + curExtension, targetFile + nextExtension);
  }
}

void File::backupFileInSequence(String const& targetFile, unsigned maximumBackups, String const& backupExtensionPrefix) {
  backupFileInSequence(targetFile, targetFile, maximumBackups, backupExtensionPrefix);