Measuring a FHIR Implementation Guide

Measures a FHIR IG objectively and reports what it counted. Strictly read-only: it never builds, changes, or publishes anything, and it does not forecast.

Preconditions

Discover the context; do not assume it, and never create it.

1. The tool. python3 must be runnable. The analyser is standard-library only — nothing to install. If python3 is absent, say so and stop; do not fetch an interpreter.

2. The subject. One or more IGs, each given as a local path, a git URL, or a package .tgz. run resolves each itself (shallow clone for a URL, download for a package). Nothing needs to be discovered inside the repository beyond what the tool reads.

   • A local path with neither sushi-config.yaml nor input/ is not an IG project. Report that and stop.
   • A git URL requires network access; if cloning fails, report the failure rather than reporting an empty measurement.