How to use

clone

method

in

com.intellij.psi.codeStyle.CodeStyleSettings

private void setTestStyleSettings() {
  CodeStyleSettingsManager settingsManager = CodeStyleSettingsManager.getInstance(getProject());
  com.intellij.psi.codeStyle.CodeStyleSettings codeStyleSettings = settingsManager.getCurrentSettings();
  assertNotNull(codeStyleSettings);
  temporaryCodeStyleSettings = codeStyleSettings.clone();
  com.intellij.psi.codeStyle.CodeStyleSettings.IndentOptions indentOptions =
      temporaryCodeStyleSettings.getIndentOptions(ElixirFileType.INSTANCE);
  assertNotNull(indentOptions);
  settingsManager.setTemporarySettings(temporaryCodeStyleSettings);
}

protected void setSettings(Project project) {
  Assert.assertNull(myTempSettings);
  CodeStyleSettings settings = CodeStyleSettingsManager.getSettings(project);
  myTempSettings = settings.clone();
  CodeStyleSettings.IndentOptions gr = myTempSettings.getIndentOptions(BashFileType.BASH_FILE_TYPE);
  Assert.assertNotSame(gr, settings.OTHER_INDENT_OPTIONS);
  gr.INDENT_SIZE = 2;
  gr.CONTINUATION_INDENT_SIZE = 4;
  gr.TAB_SIZE = 2;
  myTempSettings.CLASS_COUNT_TO_USE_IMPORT_ON_DEMAND = 3;
  CodeStyleSettingsManager.getInstance(project).setTemporarySettings(myTempSettings);
}