INNER CODE UNIT · Python

image_pins

spantaleev/matrix-docker-ansible-deploy · bin/molecule-select-roles.py:99

def image_pins(snapshot):
    """Accept only flat, quoted literal image pins; other YAML runs all scenarios."""
    if IMAGE_VARS not in snapshot or snapshot[IMAGE_VARS][0] == "120000":
        raise Uncertain("Missing or symlinked shared image pins")
    pins = {}
    document_started = False
    for line in snapshot[IMAGE_VARS][1].splitlines():
        if not line.strip() or line.startswith("#"):
            continue
        if line == "---" and not pins and not document_started:
            document_started = True
            continue
        match = IMAGE_PIN.fullmatch(line)
        if not match or match[1] in pins:
            raise Uncertain("Unrecognized shared image-pin format")
        pins[match[1]] = match[3]
    if not pins:
        raise Uncertain("No shared image pins")

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