Predefined searches with helm-occur

Question

Is there a way to have predefined helm-occur searches so that I can then bind them to a key?

I have some frequently and hard-to-type searches that would benefit from this.

(I used to do this easily with helm-swoop but it seems to be abandoned)

Answer 1

Not sure how helm-swoop worked, but you can do this:

(defun call-helm-occur (query)
  "Passes QUERY to helm-occur using `isearch-string'."
  (let ((isearch-string query))
    (call-interactively 'helm-occur-from-isearch)))

helm-occur-from-isearch pulls its input from the variable isearch-string, so use let binding to set this variable.