wehub-resource-sync
57 lines
2.1 KiB
TypeScript
57 lines
2.1 KiB
TypeScript
import { defineConfig } from "tsdown";
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/**
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* Build configuration for `@copilotkit/web-components`.
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*
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* Mirrors the multi-format layout used by `packages/a2ui-renderer`:
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* an unbundled ESM/CJS build (with `.d.ts`) for the root and the
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* `./drawer` subpath, plus a single-file UMD bundle for `<script>`
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* consumers.
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*
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* `lit` handling differs by format on purpose:
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* - ESM/CJS externalize `lit` (it is a peer dependency) so an npm host that
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* already depends on Lit dedupes a single copy of the runtime.
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* - The UMD bundle INLINES `lit` so the advertised `<script>`/CDN path is
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* self-contained. Externalizing it there mapped Lit submodules to UMD
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* globals (`LitDirectivesRepeat`, …) that Lit's CDN build never exposes,
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* so the very first `repeat()`/`classMap()` call threw at runtime.
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*/
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export default defineConfig([
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{
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entry: ["src/index.ts", "src/threads-drawer/index.ts"],
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format: ["esm", "cjs"],
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dts: true,
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sourcemap: true,
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target: "es2022",
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outDir: "dist",
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unbundle: true,
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external: (id) => {
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const externalPkgs = ["lit"];
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return externalPkgs.some((pkg) => id === pkg || id.startsWith(pkg + "/"));
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},
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exports: false,
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},
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{
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entry: ["src/index.ts"],
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format: ["umd"],
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globalName: "CopilotKitWebComponents",
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sourcemap: true,
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target: "es2018",
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outDir: "dist",
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// Force `lit` (a peer dependency, which tsdown would otherwise externalize)
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// to be INLINED into the UMD bundle so the single `<script>`/CDN artifact is
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// self-contained. Externalizing it emitted a bare `require('lit')` that has
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// no meaning in a browser global script. Inlining `lit` necessarily pulls in
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// its runtime deps (`@lit/reactive-element`, `lit-html`, `lit-element`,
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// `@lit-labs/ssr-dom-shim`); that transitive bundling is intentional here, so
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// disable tsdown's "unintended bundling" guard (which is fatal under CI).
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noExternal: [/^lit(\/|$)/, /^@lit\//, "lit-html", "lit-element"],
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inlineOnly: false,
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codeSplitting: false,
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outputOptions(options) {
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options.entryFileNames = "[name].umd.js";
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return options;
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},
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},
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]);
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