(if (not windows?) (use-modules (ice-9 popen)))
(use-modules (ice-9 textual-ports) (json parser))

(define (yml-file->scm filename)
  (if windows?
    (let* ((tmpdir (or (getenv "TMPDIR") (getenv "TEMP") "/tmp"))
            (port (mkstemp (string-append tmpdir "\\" (basename filename) "-XXXXXX") "r"))
            (tmpfilepath (port-filename port))
            (python_code (string-append "import sys, yaml, json; f = open(r'" tmpfilepath "', 'w'); f.write(json.dumps(yaml.safe_load(open('" filename "')))); f.close()"))
            (status (system (string-append "py -X utf8 -c \"" python_code "\"")))
            (json (get-string-all port)))
      (delete-file tmpfilepath)
      (json-string->scm (if (status:exit-val status) json "{}")))
    (let* ((python_code (string-append "import sys, yaml, json; print(json.dumps(yaml.safe_load(open('" filename "'))))"))
            ; WTF? On Windows there is "py" and we need to specify the encoding, on linux there is "python3" or "python"
            ; but "python3" seems to work better. Be sure you have PyYAML installed.
            (pipe (open-pipe (string-append "PYTHONHOME='' " (if windows? "py" "python3") " -X utf8 -c \"" python_code "\"") OPEN_READ))
            (json (get-string-all pipe)))
      (close-pipe pipe)
      (json-string->scm json))))

(define (parse-yml-file filename) (resolve-inherits (yml-file->scm filename)))