def _profile_replace_str()

in samtranslator/model/connector_profiles/profile.py [0:0]

• 20 lines of code
• 10 McCabe index (conditional complexity)

def _profile_replace_str(s: Any, replacements: Dict[str, Any]):  # type: ignore[no-untyped-def]
    if not isinstance(s, str):
        return s
    res = {}
    for k, v in replacements.items():
        pattern = "%{" + k + "}"
        # !Sub doesn't allow special characters in variable names
        sub_var_name = _sanitize(k)
        replaced_pattern = "${" + sub_var_name + "}"
        if pattern in s and v is None:
            raise ValueError(f"{k} is missing.")
        if pattern == s:
            # s and pattern match exactly, simply return replacement string
            return v
        if pattern in s:
            # pattern is substring of s, use Fn::Sub to replace part of s
            s = s.replace(pattern, replaced_pattern)
            res[sub_var_name] = v
    if re.search(r"\${.+}", s):
        # As long as the string has a ${..}, it needs sub.
        if res:
            return {"Fn::Sub": [s, res]}
        return {"Fn::Sub": s}
    return s