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build: dual CJS/ESM output, ES2020 target, Node 18 floor

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"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>
This commit is contained in:
David 2026-09-28 13:58:17 +00:00
parent 58869d44c1
commit 1d88c7811a
50 changed files with 1472 additions and 195 deletions
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24
package-lock.json generated
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@ -9,13 +9,15 @@
"version": "1.5.2",
"license": "MIT",
"dependencies": {
"mqtt": "^5.10.3",
"uuid": "^11.0.3"
"mqtt": "^5.10.3"
},
"devDependencies": {
"aedes": "^0.51.3",
"dotenv": "^16.5.0",
"typescript": "^5.8.3"
},
"engines": {
"node": ">=18"
}
},
"node_modules/@babel/runtime": {
@ -814,19 +816,6 @@
"integrity": "sha512-EPD5q1uXyFxJpCrLnCc1nHnq3gOa6DZBocAIiI2TaSCA7VCJ1UJDMagCzIkXNsUYfD1daK//LTEQ8xiIbrHtcw==",
"license": "MIT"
},
"node_modules/uuid": {
"version": "11.1.1",
"resolved": "https://registry.npmjs.org/uuid/-/uuid-11.1.1.tgz",
"integrity": "sha512-vIYxrBCC/N/K+Js3qSN88go7kIfNPssr/hHCesKCQNAjmgvYS2oqr69kIufEG+O4+PfezOH4EbIeHCfFov8ZgQ==",
"funding": [
"https://github.com/sponsors/broofa",
"https://github.com/sponsors/ctavan"
],
"license": "MIT",
"bin": {
"uuid": "dist/esm/bin/uuid"
}
},
"node_modules/uuid-parse": {
"version": "1.1.0",
"resolved": "https://registry.npmjs.org/uuid-parse/-/uuid-parse-1.1.0.tgz",
@ -1461,11 +1450,6 @@
"resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
"integrity": "sha512-EPD5q1uXyFxJpCrLnCc1nHnq3gOa6DZBocAIiI2TaSCA7VCJ1UJDMagCzIkXNsUYfD1daK//LTEQ8xiIbrHtcw=="
},
"uuid": {
"version": "11.1.1",
"resolved": "https://registry.npmjs.org/uuid/-/uuid-11.1.1.tgz",
"integrity": "sha512-vIYxrBCC/N/K+Js3qSN88go7kIfNPssr/hHCesKCQNAjmgvYS2oqr69kIufEG+O4+PfezOH4EbIeHCfFov8ZgQ=="
},
"uuid-parse": {
"version": "1.1.0",
"resolved": "https://registry.npmjs.org/uuid-parse/-/uuid-parse-1.1.0.tgz",