feat(ui): the viewer's screens as @colbymchenry/codegraph-ui, behind one adapter (CG-61)

`ui/src` now builds two ways from one tree: the static app `codegraph ui` serves, and — via `svelte-package` — a Svelte library the Pro app imports. A forked component would be a second answer to the same question about the same graph, so there is no fork. Everything a screen knows arrives through a `GraphAdapter`: eleven methods answering the wire shapes verbatim, with `createHttpAdapter()` (the loopback JSON API) as the default and a host's in-process engine reads as the point. `lib/api.ts` became a one-line-per-call facade over it, which is why no call site in the views changed. The payload types moved to `lib/wire.ts` — no imports, no runtime — so a host can depend on the vocabulary alone. Two more seams and one guard: - `lib/navigation.ts` holds the href builders behind a `NavigationDriver`, so a host addresses its own URL space. The app's half — the hash parser and the live route, which attach window listeners at module scope — stays in `router.svelte.ts` and is pruned out of the package: rendering a Symbol view must not install a hash router in somebody else's application. - `lib/theme.css` carries the design tokens and maps Svelte Flow's `--xy-*` variables onto them, so a host never sees library defaults. Dark now also answers to a bare `[data-theme]`, which is how `<CodegraphUi theme>` themes a container rather than the document. - `scripts/check-ui-package.mjs` prunes the app's shell, resolves the extensionless specifiers svelte-package leaves behind, and asserts that nothing but `lib/adapter.js` reaches the network. The search box, its keyboard and its panel are one component now (`SearchPalette`), because splitting them is what breaks a palette. `__tests__/ui-package.test.ts` mounts the three screens from the package entry against a mock adapter in jsdom; it runs as a second vitest project so the `browser` resolve condition it needs cannot reach the engine's suites. Versioned with the engine. Prepared, not published: `private: true` is the guard and `pack-npm.sh` only packs a tarball under CODEGRAPH_PACK_UI=1.
2026-08-27 06:52:57 -05:00
parent ad91c8fdd8
commit c15413f200
42 changed files with 4245 additions and 1157 deletions
@@ -0,0 +1,189 @@
+#!/usr/bin/env node
+/**
+ * Finish and verify the `@colbymchenry/codegraph-ui` build (task CG-61).
+ *
+ * `svelte-package` compiles the whole of `ui/src`, which is the right input —
+ * the components a host imports and the ones `codegraph ui` renders are the
+ * same files, and splitting them into two trees is how the two screens start
+ * to drift. But it means the emitted `dist/` also carries the standalone app's
+ * shell, and one of those files is a hazard rather than dead weight:
+ * `lib/router.svelte.js` attaches `hashchange`/`popstate` listeners at module
+ * scope. A host must never inherit a hash router just by rendering a Symbol
+ * view. So this script does three jobs, in order:
+ *
+ *   1. PRUNE the app-only files from the package.
+ *   2. RESOLVE the extensionless relative specifiers `svelte-package` leaves
+ *      behind, so the package works under Node's own ESM resolution and under
+ *      a consumer on `moduleResolution: node16`, not only inside a bundler.
+ *   3. ASSERT the result: the entry, the theme, every path in `exports`, the
+ *      five named components, and — the one that matters most — that nothing
+ *      outside `lib/adapter.js` talks to the network. The whole point of the
+ *      package is that a host's own adapter is the only way data arrives; a
+ *      stray `fetch` anywhere else is a screen that ignores it.
+ *
+ * Run by `npm run build:lib -w ui`. Exits non-zero on any failure.
+ */
+
+import { existsSync, readFileSync, readdirSync, rmSync, statSync, writeFileSync } from 'node:fs';
+import { dirname, join, relative, resolve } from 'node:path';
+import { fileURLToPath } from 'node:url';
+
+const UI = fileURLToPath(new URL('../ui', import.meta.url));
+const DIST = join(UI, 'dist');
+
+/**
+ * The standalone viewer's shell — everything that is only reachable from
+ * `main.ts`. Listed by hand rather than derived, because getting it wrong in
+ * the derived direction (pruning something a component needs) is silent until
+ * a host imports it.
+ */
+const APP_ONLY = [
+  'main.js',
+  'main.d.ts',
+  'App.svelte',
+  'App.svelte.d.ts',
+  'app.css',
+  'components/TopBar.svelte',
+  'components/TopBar.svelte.d.ts',
+  'lib/router.svelte.js',
+  'lib/router.svelte.d.ts',
+];
+
+/** Extensions that already resolve; anything else is rewritten to `<spec>.js`. */
+const RESOLVES = ['.js', '.mjs', '.cjs', '.json', '.css', '.svg', '.png'];
+
+const fail = (message) => {
+  console.error(`[check-ui-package] ${message}`);
+  process.exitCode = 1;
+};
+
+if (!existsSync(DIST)) {
+  fail(`no ${relative(UI, DIST)} — run \`npm run build:lib -w ui\``);
+  process.exit(1);
+}
+
+/* ------------------------------------------------------------------ 1. prune */
+
+for (const entry of APP_ONLY) {
+  const path = join(DIST, entry);
+  if (existsSync(path)) rmSync(path, { recursive: true });
+}
+
+/* ------------------------------------------------------------------ walk it */
+
+function* files(dir) {
+  for (const name of readdirSync(dir)) {
+    const path = join(dir, name);
+    if (statSync(path).isDirectory()) yield* files(path);
+    else yield path;
+  }
+}
+
+const all = [...files(DIST)];
+
+/* ---------------------------------------------------------------- 2. resolve */
+
+/**
+ * `from './lib/adapter'` -> `from './lib/adapter.js'`, and
+ * `from './lib/trail.svelte'` -> `from './lib/trail.svelte.js'` (the emitted
+ * file for a `.svelte.ts` rune module).
+ *
+ * Driven by the filesystem rather than by the extension alone: `.svelte` is a
+ * real file for a component and a compiled `.js` for a rune module, and only
+ * looking is right for both.
+ */
+function resolveSpecifiers(source, fromFile) {
+  return source.replace(
+    /(\bfrom\s*|\bimport\s*\(\s*)(['"])(\.[^'"]*)\2/g,
+    (match, head, quote, spec) => {
+      if (RESOLVES.some((ext) => spec.endsWith(ext))) return match;
+      const target = resolve(dirname(fromFile), spec);
+      if (existsSync(target) && statSync(target).isFile()) return match;
+      if (!existsSync(`${target}.js`)) return match;
+      return `${head}${quote}${spec}.js${quote}`;
+    }
+  );
+}
+
+let rewritten = 0;
+for (const path of all) {
+  if (!/\.(js|d\.ts|svelte)$/.test(path)) continue;
+  const before = readFileSync(path, 'utf8');
+  const after = resolveSpecifiers(before, path);
+  if (after !== before) {
+    writeFileSync(path, after);
+    rewritten += 1;
+  }
+}
+
+/* ----------------------------------------------------------------- 3. assert */
+
+const manifest = JSON.parse(readFileSync(join(UI, 'package.json'), 'utf8'));
+
+// Every path the exports map promises has to be there. A missing one is a
+// package that installs cleanly and then fails at the consumer's first import.
+for (const [name, entry] of Object.entries(manifest.exports ?? {})) {
+  const targets = typeof entry === 'string' ? [entry] : Object.values(entry);
+  for (const target of targets) {
+    if (!target.startsWith('./')) continue;
+    if (!existsSync(join(UI, target))) fail(`exports["${name}"] -> ${target} is missing`);
+  }
+}
+
+// The five components the task names, plus the two seams they are useless
+// without. Checked in the emitted JS, so a rename in index.ts that misses a
+// component fails here rather than in the Pro app.
+const entry = existsSync(join(DIST, 'index.js'))
+  ? readFileSync(join(DIST, 'index.js'), 'utf8')
+  : '';
+for (const name of [
+  'SymbolView',
+  'FlowStrip',
+  'ArchitectureMap',
+  'TrailBar',
+  'SearchPalette',
+  'CodegraphUi',
+  'setGraphAdapter',
+  'createHttpAdapter',
+  'setNavigationDriver',
+]) {
+  if (!new RegExp(`\\b${name}\\b`).test(entry)) fail(`dist/index.js does not export ${name}`);
+}
+
+// Nothing the app dragged in survives. A component still importing one of the
+// pruned modules would resolve to nothing in a host.
+for (const path of all) {
+  if (!existsSync(path)) continue;
+  const text = readFileSync(path, 'utf8');
+  for (const pruned of ['router.svelte', 'TopBar.svelte', 'app.css']) {
+    const importing = new RegExp(`(from|import\\()\\s*['"][^'"]*${pruned}`);
+    if (importing.test(text)) {
+      fail(`${relative(DIST, path)} still imports ${pruned}, which is app-only`);
+    }
+  }
+}
+
+// The data seam. `lib/adapter.js` is the ONE place that may reach the network;
+// anywhere else means a screen that ignores the host's adapter.
+for (const path of all) {
+  if (!existsSync(path) || !path.endsWith('.js')) continue;
+  if (path.endsWith(join('lib', 'adapter.js'))) continue;
+  const text = readFileSync(path, 'utf8')
+    // Comments talk about `fetch` and `EventSource` on purpose; only code counts.
+    .replace(/\/\*[\s\S]*?\*\//g, '')
+    .replace(/(^|\s)\/\/[^\n]*/g, '');
+  if (/\bnew EventSource\b|\bfetch\s*\(/.test(text)) {
+    fail(`${relative(DIST, path)} reaches the network directly — it must go through the adapter`);
+  }
+}
+
+if (process.exitCode) {
+  console.error('[check-ui-package] FAILED');
+  process.exit(1);
+}
+
+const count = [...files(DIST)].length;
+console.log(
+  `[check-ui-package] ok — ${count} files, ${rewritten} rewritten, ` +
+    `${APP_ONLY.length} app-only pruned (v${manifest.version})`
+);