46 lines
1.9 KiB
TypeScript
46 lines
1.9 KiB
TypeScript
// verdaccio's events. The tool runtime imports this once the broker is bound.
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//
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// Emits (novox/hq ADR 0041/0042):
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// module.verdaccio.package.published — a new package version was published to the registry
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//
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// A genuinely useful signal: a package was just published, so anything on the mesh that pins,
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// mirrors or announces dependency releases can react without polling the registry. Verdaccio has
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// no publish webhook, so the module discovers it by diffing the package list's latest versions.
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//
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// The polling is deliberately unhurried: a publish a minute late is still the event, whereas
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// hammering the registry for immediacy nobody asked for is not.
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import { emit } from "@novox/mesh-sdk/events";
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import { VerdaccioClient } from "./client.js";
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const verdaccio = VerdaccioClient.fromEnv();
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// The latest version we have seen per package name. Primed silently on the first look so a registry
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// that was already populated when this started does not announce its whole catalog as freshly
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// published.
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const latest = new Map<string, string>();
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let primed = false;
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async function pollPackages(): Promise<void> {
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const packages = await verdaccio.listPackages();
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for (const pkg of packages) {
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if (!pkg.version) continue;
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const known = latest.get(pkg.name);
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if (known !== pkg.version) {
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// A name we have not seen, or a name whose latest version moved — both are a publish.
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if (primed) await emit("module.verdaccio.package.published", { name: pkg.name, version: pkg.version });
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latest.set(pkg.name, pkg.version);
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}
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}
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primed = true;
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}
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const tick = (fn: () => Promise<void>, everyMs: number): void => {
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const run = (): void => void fn().catch((err) => console.error(`[verdaccio] ${err}`));
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setInterval(run, everyMs);
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run();
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};
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tick(pollPackages, 60_000);
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console.log("[verdaccio] watching the registry for newly published packages");
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