How to use

getIndentOptions

method

in

com.intellij.psi.codeStyle.CodeStyleSettings

  private void setNoTabChar(@NotNull final CodeStyleSettings settings, final FileType fileType) {
    CommonCodeStyleSettings.IndentOptions indentOptions = settings.getIndentOptions(fileType);
    if (indentOptions != null) {
      indentOptions.USE_TAB_CHARACTER = false;
    }
  }
}

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 setSettingsBack() {
  final CodeStyleSettingsManager manager = CodeStyleSettingsManager.getInstance(myFixture.getProject());
  myTempSettings.getIndentOptions(BashFileType.BASH_FILE_TYPE).INDENT_SIZE = 200;
  myTempSettings.getIndentOptions(BashFileType.BASH_FILE_TYPE).CONTINUATION_INDENT_SIZE = 200;
  myTempSettings.getIndentOptions(BashFileType.BASH_FILE_TYPE).TAB_SIZE = 200;
  myTempSettings.CLASS_COUNT_TO_USE_IMPORT_ON_DEMAND = 5;
  manager.dropTemporarySettings();
  myTempSettings = null;
}

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);
}