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Configuration error
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import * as ts from 'typescript.js';
import { readFileSync, writeFileSync, readdirSync, statSync } from 'fs.js';
import { extname, basename, join, resolve } from 'path.js';
/**
* Script that adds .js extension to imports so that it's compatible with plain
* browser/non-webpack bundlers. TS doesn't support this natively yet.
* @see https://github.com/microsoft/TypeScript/issues/16577
*/
function processFile(file) {
let source = readFileSync(file, 'utf-8');
const program = ts.createSourceFile(basename(file), source, ts.ScriptTarget.ES2015, true);
let offset = 0;
const process = (node) => {
if ((!ts.isImportDeclaration(node) && !ts.isExportDeclaration(node)) || !node.moduleSpecifier) {
return ts.forEachChild(node, process);
}
const specifier = node.moduleSpecifier;
if (extname(specifier.getText()) === '') {
const idx = specifier.end + offset - 1;
source = source.slice(0, idx) + '.js' + source.slice(idx);
offset += 3;
}
};
process(program);
writeFileSync(file, source);
}
function processDir(dir) {
const entries = readdirSync(dir);
for (const entry of entries) {
const path = join(dir, entry);
if (path.endsWith('.js')) {
processFile(path);
}
else if (statSync(path).isDirectory()) {
processDir(path);
}
}
}
processDir(resolve(__dirname, '..', '..', 'esm'));
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