David
1d88c7811a
"exports" gains "import" and "types" next to "require": import "alex2node" failed with ERR_PACKAGE_PATH_NOT_EXPORTED. scripts/build.mjs compiles src/ to dist/cjs, dist/esm and dist/types in a staging directory and swaps them in only when both compiler runs passed. "main" and "types" follow for resolvers that do not read "exports". Target ES6 -> ES2020, "engines": node >= 18, relative imports carry ".js" for Node's ESM loader. uuid gives way to crypto.randomUUID(); mqtt is the only runtime dependency left. Tests load the package by name. New: both entry points, the modules the builds import, dist/ equal to a fresh build, a round trip on the ES module build, and two compiled type fixtures in place of the .d.ts regexes. 22 tests pass in 5.7 s. dist/: 16 files, 79,711 B -> 25 files, 132,291 B; the npm tarball is 25,125 B. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
49 lines
2.2 KiB
JavaScript
49 lines
2.2 KiB
JavaScript
// npm run build - the only writer of dist/.
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//
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// node scripts/build.mjs [--out <dir>] <dir> defaults to dist/ in the package
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//
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// Two compiler runs over src/: CommonJS with the declarations (cjs/, types/), then ES modules (esm/). Both write to a
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// staging directory that replaces the three directories only after both runs passed, so a failed build leaves the
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// tracked dist/ as it was. Files of sources that no longer exist go with the old directories.
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import { spawnSync } from "node:child_process";
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import { mkdirSync, mkdtempSync, renameSync, rmSync, writeFileSync } from "node:fs";
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import { createRequire } from "node:module";
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import { dirname, join, resolve } from "node:path";
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import { fileURLToPath } from "node:url";
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const root = resolve(dirname(fileURLToPath(import.meta.url)), "..");
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const tsc = createRequire(import.meta.url).resolve("typescript/bin/tsc");
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function outputDirectory(args) {
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const at = args.indexOf("--out");
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if (at === -1) return join(root, "dist");
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if (!args[at + 1]) throw new Error("--out needs a directory");
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return resolve(args[at + 1]);
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}
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function compile(project, options) {
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const run = spawnSync(process.execPath, [tsc, "-p", join(root, project), ...options], { cwd: root, stdio: "inherit" });
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if (run.error) throw run.error;
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if (run.status !== 0) throw new Error(`tsc -p ${project} failed, ${out} is unchanged`);
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}
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let out;
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let staging;
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try {
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out = outputDirectory(process.argv.slice(2));
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mkdirSync(out, { recursive: true });
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staging = mkdtempSync(join(out, ".build-"));
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compile("tsconfig.cjs.json", ["--outDir", join(staging, "cjs"), "--declarationDir", join(staging, "types")]);
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compile("tsconfig.esm.json", ["--outDir", join(staging, "esm")]);
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// The package is "type": "commonjs"; this marks the .js files under esm/ as ES modules.
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writeFileSync(join(staging, "esm", "package.json"), JSON.stringify({ type: "module" }, null, 2) + "\n");
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for (const part of ["cjs", "esm", "types"]) {
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rmSync(join(out, part), { recursive: true, force: true });
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renameSync(join(staging, part), join(out, part));
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}
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} catch (err) {
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console.error(`build: ${err.message}`);
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process.exitCode = 1;
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} finally {
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if (staging) rmSync(staging, { recursive: true, force: true });
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}
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