rules:
- id: hidden-goroutine
  patterns:
  - pattern-not: |
      func $FUNC(...) {
        go func() {
          ...
        }(...)
        $MORE
      }
  - pattern: |
      func $FUNC(...) {
        go func() {
          ...
        }(...)
      }
  message: >-
    Detected a hidden goroutine. Function invocations are expected to synchronous,
    and this function will execute asynchronously because all it does is call a
    goroutine. Instead, remove the internal goroutine and call the function using
    'go'.
  languages: [go]
  severity: WARNING
  metadata:
    category: best-practice
    technology:
    - go