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feat(custom-elements): add experimental custom elements build (#22863)

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Co-authored-by: Liam DeBeasi <liamdebeasi@icloud.com>
This commit is contained in:
Adam Bradley
2021-02-11 11:08:00 -06:00
committed by GitHub
parent 19d63f6243
commit 0de75afbef
61 changed files with 5430 additions and 7613 deletions
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46
core/scripts/treeshaking.js
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@ -4,15 +4,15 @@ const virtual = require('@rollup/plugin-virtual');
const fs = require('fs');
async function main() {
const input = process.argv[2] || getInput();
const result = await check(input);
const relative = path.relative(process.cwd(), input);
const input = process.argv[2] || getMainEntry();
const result = await check(input);
const relative = path.relative(process.cwd(), input);
if (result.shaken) {
console.error(`Success! ${relative} is fully tree-shakeable`);
} else {
error(`Failed to tree-shake ${relative}`);
}
if (result.shaken) {
console.error(`Success! ${relative} is fully tree-shakeable`);
} else {
error(`Failed to tree-shake ${relative}`);
};
}
function error(msg) {
@ -20,10 +20,10 @@ function error(msg) {
process.exit(1);
}
function getInput() {
if (!fs.existsSync('package.json')) {
error(`Could not find package.json`);
}
function getMainEntry() {
if (!fs.existsSync('package.json')) {
error(`Could not find package.json`);
}
const pkg = JSON.parse(fs.readFileSync('package.json'), 'utf-8');
@ -38,20 +38,20 @@ function getInput() {
}
function resolve(file) {
if (isDirectory(file)) {
return ifExists(`${file}/index.js`) || ifExists(`${file}/index.cjs.js`);
}
if (isDirectory(file)) {
return ifExists(`${file}/index.cjs.js`) || ifExists(`${file}/index.js`);
}
return ifExists(file) || ifExists(`${file}.js`) || ifExists(`${file}.cjs.js`);
return ifExists(file) || ifExists(`${file}.cjs.js`) || ifExists(`${file}.js`);
}
function isDirectory(file) {
try {
const stats = fs.statSync(file);
return stats.isDirectory();
} catch (err) {
return false;
}
try {
const stats = fs.statSync(file);
return stats.isDirectory();
} catch (err) {
return false;
}
}
function ifExists(file) {
@ -67,7 +67,7 @@ async function check(input) {
virtual({
__agadoo__: `import ${JSON.stringify(resolved)}`,
tslib: `
const noop = () => {};
const noop = () => {};
export const __awaiter = noop;
export const __extends = noop;
export const __generator = noop;