watcherDefaultTasks.xml

<application>
  <component name="ApplicationTasksOptions">
    <TaskOptions isEnabled="true">
      <option name="arguments" value="fmt $FilePath$" />
      <option name="checkSyntaxErrors" value="true" />
      <option name="description" />
      <option name="exitCodeBehavior" value="ERROR" />
      <option name="fileExtension" value="go" />
      <option name="immediateSync" value="false" />
      <option name="name" value="go fmt" />
      <option name="output" value="$FilePath$" />
      <option name="outputFilters">
        <array />
      </option>
      <option name="outputFromStdout" value="false" />
      <option name="program" value="$GoExecPath$" />
      <option name="runOnExternalChanges" value="false" />
      <option name="scopeName" value="Project Files" />
      <option name="trackOnlyRoot" value="true" />
      <option name="workingDir" value="" />
      <envs>
        <env name="GOROOT" value="$GOROOT$" />
        <env name="GOPATH" value="$GOPATH$" />
        <env name="PATH" value="$GoBinDirs$" />
      </envs>
    </TaskOptions>
    <global-watchers>
      <TaskOptions>
        <option name="arguments" value="fmt $FilePath$" />
        <option name="checkSyntaxErrors" value="true" />
        <option name="description" />
        <option name="exitCodeBehavior" value="ERROR" />
        <option name="fileExtension" value="go" />
        <option name="immediateSync" value="false" />
        <option name="name" value="go fmt" />
        <option name="output" value="$FilePath$" />
        <option name="outputFilters">
          <array />
        </option>
        <option name="outputFromStdout" value="false" />
        <option name="program" value="$GoExecPath$" />
        <option name="runOnExternalChanges" value="false" />
        <option name="scopeName" value="Project Files" />
        <option name="trackOnlyRoot" value="true" />
        <option name="workingDir" value="$ProjectFileDir$" />
        <envs>
          <env name="GOROOT" value="$GOROOT$" />
          <env name="GOPATH" value="$GOPATH$" />
          <env name="PATH" value="$GoBinDirs$" />
        </envs>
      </TaskOptions>
    </global-watchers>
  </component>
</application>