flyemoji
7db57b9fff
Give the Runner a way to read each component's CURRENT version so it can be compared against the release sources already wired. Three pure extractors turn raw system text into an updates.Version, each fail-closed: - versionFromCLI — a `<tool> --version` banner (k3s, cloudflared) - versionFromImageRef — a container image tag (felis-api) - versionFromJarName — a proxy jar filename (velocity) sysGatherer routes each Topology component to the right extractor over an injected seam; every path is exercised with a fake runner, mirroring how the release sources are proven against httptest. The load-bearing case is k3s: its Git tag "v1.36.2+k3s1" parses stable, but a registry cannot store '+', so the same build ships as image tag "v1.36.2-k3s1", which parses as a prerelease unless repaired. versionFromImageRef normalizes "-k3sN"/"-rke2rN" back to "+", so an image read and a CLI read agree instead of the image masquerading as a prerelease and being barred from comparison. Honest runtime state after this slice — a green suite is not "the updater runs against real infra": only the CLI seam (execRunner) is wired, so of the four tracked components just cloudflared is live end to end (gatherable AND Scheduled/appliable). k3s is CLI-gatherable but Notify-only. felis-api and velocity are NOT yet runtime-gatherable: their producing seams — a k8s read of the control-plane Deployment image, and an off-cluster jar inspection — are left nil, so both surface an explicit "gather seam not wired" error rather than a wrong version. felis-api self-update is therefore not functional yet. Remaining integration (tracked in doc.go): the two producing seams, the concrete Notifier (SMTP + in-game), the Applier (image bump, cloudflared swap), the `felis update` CLI + CronJob entry point, and the runtime append of the Pinned Minecraft fleet.