Colin McDonnell
3c2f3722ff
emit real ESM runtime + declaration outputs for programmatic imports, align package exports/types with built files, and add a no-cjs policy note. Made-with: Cursor
100 lines
2.9 KiB
JavaScript
100 lines
2.9 KiB
JavaScript
// @ts-check
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import { build } from "esbuild";
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import { mkdirSync, readFileSync, rmSync, writeFileSync } from "fs";
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const pkg = JSON.parse(readFileSync("package.json", "utf-8"));
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rmSync("./dist", { recursive: true, force: true });
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mkdirSync("./dist", { recursive: true });
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// Plugin to strip shebangs from output files
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/**
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* @type {import("esbuild").Plugin}
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*/
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const stripShebangPlugin = {
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name: "strip-shebang",
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setup(build) {
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build.onEnd((result) => {
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if (result.errors.length > 0) return;
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// Strip shebang from the output file
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const outputFile = build.initialOptions.outfile;
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if (outputFile) {
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try {
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const content = readFileSync(outputFile, "utf8");
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// Remove shebang line from the beginning if present
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const withoutShebang = content.startsWith("#!")
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? content.slice(content.indexOf("\n") + 1)
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: content;
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writeFileSync(outputFile, withoutShebang);
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} catch (error) {
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// File might not exist, ignore
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}
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}
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});
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},
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};
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/**
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* @type {import("esbuild").BuildOptions}
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*/
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const sharedConfig = {
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bundle: true,
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format: "esm",
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platform: "node",
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target: "node24",
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minify: false,
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sourcemap: false,
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// Bundle all dependencies - GitHub Actions doesn't have node_modules
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// Only mark optional peer dependencies as external
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external: [
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"@valibot/to-json-schema",
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"effect",
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"sury",
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],
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// Provide a proper require shim for CommonJS modules bundled into ESM
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// We use a unique variable name to avoid conflicts with bundled imports
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banner: {
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js: `import { createRequire as __createRequire } from 'module'; import { fileURLToPath as __fileURLToPath } from 'url'; import { dirname as __dirnameFn } from 'path'; const require = __createRequire(import.meta.url); const __filename = __fileURLToPath(import.meta.url); const __dirname = __dirnameFn(__filename);`,
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},
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// Enable tree-shaking to remove unused code
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treeShaking: true,
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// Drop console statements in production (but keep for debugging)
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drop: [],
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};
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// Build the CLI bundle (published to npm, used by npx)
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await build({
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...sharedConfig,
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entryPoints: ["./cli.ts"],
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outfile: "./dist/cli.mjs",
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target: "node20",
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plugins: [stripShebangPlugin],
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define: {
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"process.env.CLI_VERSION": JSON.stringify(pkg.version),
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},
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});
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// Build ESM library entrypoints for programmatic imports
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await build({
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...sharedConfig,
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entryPoints: ["./index.ts"],
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outfile: "./dist/index.js",
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target: "node20",
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});
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await build({
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...sharedConfig,
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entryPoints: ["./internal/index.ts"],
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outfile: "./dist/internal.js",
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target: "node20",
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});
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// prepend shebang after strip (esbuild banner can't guarantee line 1 placement)
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const cliPath = "./dist/cli.mjs";
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const cliContent = readFileSync(cliPath, "utf8");
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writeFileSync(cliPath, `#!/usr/bin/env node\n${cliContent}`);
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console.log("» build completed successfully");
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