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Replace custom Rollup setup with tsup #1268

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Replace custom Rollup setup with tsup #1268

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f1c918e
Disable package-lock in examples directory
arturmuller Jul 27, 2024
a7f7cd1
Replace rollup with tsup
arturmuller Jul 27, 2024
c20c046
Allow release from any branch
arturmuller Jul 27, 2024
951a0ed
2.0.3-0
arturmuller Jul 27, 2024
92c181e
Add exports field to package.json
arturmuller Jul 27, 2024
3da4581
2.0.3-1
arturmuller Jul 27, 2024
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1 change: 1 addition & 0 deletions examples/.npmrc
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Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
package-lock=false
23 changes: 17 additions & 6 deletions package.json
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Original file line number Diff line number Diff line change
@@ -1,13 +1,25 @@
{
"name": "superstruct",
"description": "A simple and composable way to validate data in JavaScript (and TypeScript).",
"version": "2.0.2",
"version": "2.0.3-1",
"license": "MIT",
"repository": "git://github.com/ianstormtaylor/superstruct.git",
"type": "module",
"main": "./dist/index.cjs",
"module": "./dist/index.mjs",
"module": "./dist/index.js",
"types": "./dist/index.d.ts",
"exports": {
".": {
"import": {
"types": "./dist/index.d.ts",
"default": "./dist/index.js"
},
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@MajorLift MajorLift Jul 31, 2024 •
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As discussed, this fix resolves the "Masquerading as ESM" issue that affected previous releases. This is demonstrated by the ATTW diagnostics results (before vs. after).

In the current JavaScript ecosystem, as long as "type": "module" is specified in package.json, there is no distinction between .js vs. .mjs and .d.ts vs. .d.mts files, so this should work without issue.

That said, all else being equal, I wonder if preferring explicit file extensions (exclusively using .mjs, .d.mts for ESM) would help future-proof the code against any potential breaking changes in the module system implementations of ECMAScript, Node.js, or TypeScript. Given the complicated, ongoing history of CJS/ESM-interop this doesn't seem like a remote possibility.

I'm curious whether you see any advantage in using the ambiguous .js, .d.ts extensions, or if you are indifferent between the two options?

"require": {
"types": "./dist/index.d.cts",
"default": "./dist/index.cjs"
}
}
},
"sideEffects": false,
"files": [
"dist"
Expand All @@ -19,7 +31,6 @@
"node": ">=14.0.0"
},
"devDependencies": {
"@rollup/plugin-typescript": "^11.1.6",
"@types/expect": "^24.3.0",
"@types/lodash": "^4.14.144",
"@types/node": "^18.7.14",
Expand All @@ -31,20 +42,20 @@
"lodash": "^4.17.15",
"np": "^10.0.0",
"prettier": "^3.2.5",
"rollup": "^4.12.1",
"tsup": "^8.2.3",
"typescript": "^4.8.3",
"vitest": "^1.6.0"
},
"scripts": {
"build": "rm -rf ./{dist} && rollup --config ./rollup.config.js",
"build": "rm -rf ./{dist} && tsup",
"clean": "rm -rf ./{dist,node_modules}",
"fix": "npm run fix:eslint && npm run fix:prettier",
"fix:eslint": "npm run lint:eslint --fix",
"fix:prettier": "prettier '**/*.{js,json,ts}' --write",
"lint": "npm run lint:eslint && npm run lint:prettier",
"lint:eslint": "eslint '{src,test}/*.{js,ts}'",
"lint:prettier": "prettier '**/*.{js,json,ts}' --check",
"release": "npm run build && npm run lint && np",
"release": "npm run build && npm run lint && np --any-branch",
"test": "npm run build && npm run test:types && npm run test:vitest",
"test:types": "tsc --noEmit && tsc --project ./test/tsconfig.json --noEmit",
"test:vitest": "vitest run",
Expand Down
20 changes: 0 additions & 20 deletions rollup.config.js
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9 changes: 9 additions & 0 deletions tsup.config.ts
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Original file line number Diff line number Diff line change
@@ -0,0 +1,9 @@
import { defineConfig } from 'tsup'

export default defineConfig({
entry: ['src/index.ts'],
sourcemap: true,
dts: true,
format: ['cjs', 'esm', 'iife'],
globalName: 'Superstruct',
})