39 lines
1.2 KiB
TypeScript
39 lines
1.2 KiB
TypeScript
// Original: https://github.com/rollup/plugins/tree/8835dd2aed92f408d7dc72d7cc25a9728e16face/packages/json
|
|
|
|
import JSON5 from 'json5';
|
|
import { Plugin } from 'rollup';
|
|
import { createFilter, dataToEsm } from '@rollup/pluginutils';
|
|
import { RollupJsonOptions } from '@rollup/plugin-json';
|
|
|
|
export default function json5(options: RollupJsonOptions = {}): Plugin {
|
|
const filter = createFilter(options.include, options.exclude);
|
|
const indent = 'indent' in options ? options.indent : '\t';
|
|
|
|
return {
|
|
name: 'json5',
|
|
|
|
// eslint-disable-next-line no-shadow
|
|
transform(json, id) {
|
|
if (id.slice(-6) !== '.json5' || !filter(id)) return null;
|
|
|
|
try {
|
|
const parsed = JSON5.parse(json);
|
|
return {
|
|
code: dataToEsm(parsed, {
|
|
preferConst: options.preferConst,
|
|
compact: options.compact,
|
|
namedExports: options.namedExports,
|
|
indent
|
|
}),
|
|
map: { mappings: '' }
|
|
};
|
|
} catch (err) {
|
|
const message = 'Could not parse JSON file';
|
|
const position = parseInt(/[\d]/.exec(err.message)[0], 10);
|
|
this.warn({ message, id, position });
|
|
return null;
|
|
}
|
|
}
|
|
};
|
|
}
|