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dummdidummRich-HarrisConduitry
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fix: dont emit false positive export condition warning (#9109)
* fix: dont emit false positive export condition warning fixes #9097 * Update .changeset/friendly-pandas-sort.md Co-authored-by: Conduitry <[email protected]> --------- Co-authored-by: Rich Harris <[email protected]> Co-authored-by: Conduitry <[email protected]>
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‎.changeset/friendly-pandas-sort.md‎

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---
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'@sveltejs/package': patch
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---
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fix: don't emit false positive export condition warning

‎packages/package/src/validate.js‎

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@@ -1,10 +1,46 @@
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import { existsSync, readFileSync } from 'node:fs';
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import { readFileSync } from 'node:fs';
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import { join } from 'node:path';
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import colors from 'kleur';
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/**
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* @param {import("./types").Options} options
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*/
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export function create_validator(options) {
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const { analyse_code, validate } = _create_validator(options);
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return {
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/**
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* Checks a file content for problematic imports and things like `import.meta`
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* @param {string} name
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* @param {string} content
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*/
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analyse_code(name, content) {
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analyse_code(name, content);
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},
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validate() {
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/** @type {Record<string, any>} */
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const pkg = JSON.parse(readFileSync(join(options.cwd, 'package.json'), 'utf-8'));
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const warnings = validate(pkg);
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// Just warnings, not errors, because
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// - would be annoying in watch mode (would have to restart the server)
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// - maybe there's a custom post-build script that fixes some of these
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if (warnings.length) {
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console.log(
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colors
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.bold()
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.yellow('@sveltejs/package found the following issues while packaging your library:')
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);
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for (const warning of warnings) {
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console.log(colors.yellow(`${warning}\n`));
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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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* @param {import("./types").Options} options
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*/
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export function _create_validator(options) {
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/** @type {Set<string>} */
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const imports = new Set();
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let uses_import_meta = false;
@@ -32,9 +68,10 @@ export function create_validator(options) {
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}
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}
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function validate() {
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/** @type {Record<string, any>} */
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const pkg = JSON.parse(readFileSync('package.json', 'utf-8'));
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/**
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* @param {Record<string, any>} pkg
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*/
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function validate(pkg) {
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/** @type {string[]} */
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const warnings = [];
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);
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}
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// Just warnings, not errors, because
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// - would be annoying in watch mode (would have to restart the server)
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// - maybe there's a custom post-build script that fixes some of these
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if (warnings.length) {
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console.log(
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colors
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.bold()
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.yellow('@sveltejs/package found the following issues while packaging your library:')
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);
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for (const warning of warnings) {
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console.log(colors.yellow(`${warning}\n`));
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}
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}
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return warnings;
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}
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return {
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*/
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function traverse(exports_map, is_first_level) {
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for (const key of Object.keys(exports_map ?? {})) {
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if (is_first_level) {
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if (!is_first_level) {
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conditions.add(key);
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}
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‎packages/package/test/fixtures/assets/package.json‎

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"name": "assets",
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"private": true,
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"version": "1.0.0",
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"description": "no tampering assets"
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"description": "no tampering assets",
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"peerDependencies": {
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"svelte": "^3.55.0"
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},
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"exports": {
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".": {
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"types": "./dist/index.d.ts",
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"svelte": "./dist/index.js"
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}
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}
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}

‎packages/package/test/fixtures/emitTypes-false/package.json‎

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@@ -3,5 +3,13 @@
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"private": true,
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"version": "1.0.0",
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"description": "emitTypes settings disabled",
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"type": "module"
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"type": "module",
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"peerDependencies": {
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"svelte": "^3.55.0"
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},
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"exports": {
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".": {
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"svelte": "./dist/index.js"
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}
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}
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}

‎packages/package/test/fixtures/javascript/package.json‎

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"name": "javascript",
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"private": true,
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"version": "1.0.0",
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"description": "standard javascript package"
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"description": "standard javascript package",
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"peerDependencies": {
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"svelte": "^3.55.0"
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},
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"exports": {
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".": {
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"types": "./dist/index.d.ts",
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"svelte": "./dist/index.js"
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}
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}
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}

‎packages/package/test/fixtures/resolve-alias/package.json‎

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"private": true,
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"version": "1.0.0",
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"description": "package using $lib alias",
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"type": "module"
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"type": "module",
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"peerDependencies": {
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"svelte": "^3.55.0"
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},
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"exports": {
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".": {
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"types": "./dist/index.d.ts",
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"svelte": "./dist/index.js"
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}
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}
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}

‎packages/package/test/fixtures/svelte-kit/package.json‎

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"private": true,
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"version": "1.0.0",
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"type": "module",
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"description": "SvelteKit library project"
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"description": "SvelteKit library project",
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"peerDependencies": {
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"svelte": "^3.55.0"
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},
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"exports": {
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".": {
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"types": "./dist/index.d.ts",
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"svelte": "./dist/index.js"
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}
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}
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}

‎packages/package/test/fixtures/typescript/package.json‎

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"private": true,
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"version": "1.0.0",
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"description": "standard typescript package",
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"type": "module"
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"type": "module",
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"peerDependencies": {
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"svelte": "^3.55.0"
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},
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"exports": {
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".": {
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"types": "./dist/index.d.ts",
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"svelte": "./dist/index.js"
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}
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}
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}

‎packages/package/test/index.js‎

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@@ -9,6 +9,7 @@ import * as assert from 'uvu/assert';
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import { build, watch } from '../src/index.js';
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import { load_config } from '../src/config.js';
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import { rimraf, walk } from '../src/filesystem.js';
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import { _create_validator } from '../src/validate.js';
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const __filename = fileURLToPath(import.meta.url);
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const __dirname = join(__filename, '..');
@@ -214,4 +215,89 @@ if (!process.env.CI) {
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});
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}
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/**
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* @param {string[]} actual
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* @param {string[]} expected
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*/
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function has_warnings(actual, expected) {
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assert.equal(actual.length, expected.length);
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assert.equal(
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actual.filter((warning) => expected.some((str) => warning.startsWith(str))).length,
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expected.length
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);
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}
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test('validates package (1)', () => {
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const { analyse_code, validate } = _create_validator({
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config: {},
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cwd: '',
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input: '',
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output: '',
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types: true
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});
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analyse_code('src/lib/index.js', 'export const a = 1;import.meta.env;');
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analyse_code('src/lib/C.svelte', '');
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const warnings = validate({});
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has_warnings(warnings, [
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'No `exports` field found in `package.json`, please provide one.',
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'Avoid usage of `import.meta.env` in your code',
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'You are using Svelte components or Svelte-specific imports in your code, but you have not declared a dependency on `svelte` in your `package.json`. '
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]);
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});
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test('validates package (2)', () => {
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const { analyse_code, validate } = _create_validator({
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config: {},
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cwd: '',
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input: '',
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output: '',
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types: true
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});
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analyse_code('src/lib/C.svelte', '');
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const warnings = validate({
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exports: { '.': './dist/C.svelte' },
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peerDependencies: { svelte: '^3.55.0' }
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});
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has_warnings(warnings, [
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'You are using Svelte files, but did not declare a `svelte` condition in one of your `exports` in your `package.json`. '
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]);
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});
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test('validates package (all ok 1)', () => {
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const { analyse_code, validate } = _create_validator({
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config: {},
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cwd: '',
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input: '',
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output: '',
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types: true
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});
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analyse_code('src/lib/C.svelte', '');
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const warnings = validate({
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exports: { '.': { svelte: './dist/C.svelte' } },
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peerDependencies: { svelte: '^3.55.0' }
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});
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assert.equal(warnings.length, 0);
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});
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test('validates package (all ok 2)', () => {
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const { analyse_code, validate } = _create_validator({
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config: {},
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cwd: '',
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input: '',
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output: '',
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types: true
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});
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analyse_code('src/lib/C.svelte', '');
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const warnings = validate({
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exports: { '.': { svelte: './dist/C.svelte' } },
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peerDependencies: { svelte: '^3.55.0' },
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svelte: './dist/C.svelte'
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});
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assert.equal(warnings.length, 0);
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});
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test.run();

‎packages/package/test/watch/package.json‎

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{
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"name": "watch",
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"type": "module"
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"type": "module",
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"peerDependencies": {
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"svelte": "^3.55.0"
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},
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"exports": {
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".": {
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"types": "./dist/index.d.ts",
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"svelte": "./dist/index.js"
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}
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}
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}

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