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4 changes: 2 additions & 2 deletions packages/yaml/package.json
Original file line number Diff line number Diff line change
Expand Up @@ -49,7 +49,7 @@
"yaml"
],
"peerDependencies": {
"rollup": "^1.20.0||^2.0.0||^3.0.0||^4.0.0"
"rollup": "^4.38.0"
},
"peerDependenciesMeta": {
"rollup": {
Expand All @@ -64,7 +64,7 @@
"devDependencies": {
"@rollup/plugin-node-resolve": "^15.0.0",
"del-cli": "^5.0.0",
"rollup": "^4.0.0-24",
"rollup": "^4.38.0",
"source-map-support": "^0.5.21"
},
"types": "./types/index.d.ts",
Expand Down
55 changes: 29 additions & 26 deletions packages/yaml/src/index.js
Original file line number Diff line number Diff line change
@@ -1,17 +1,16 @@
import YAML from 'js-yaml';
import toSource from 'tosource';
import { createFilter, makeLegalIdentifier } from '@rollup/pluginutils';
import { makeLegalIdentifier } from '@rollup/pluginutils';

const defaults = {
documentMode: 'single',
transform: null,
extensions: ['.yaml', '.yml']
include: ['*.yaml', '.yml']
};

export default function yaml(opts = {}) {
const options = Object.assign({}, defaults, opts);
const { documentMode, extensions } = options;
const filter = createFilter(options.include, options.exclude);
const { documentMode, include, exclude } = options;
let loadMethod = null;

if (documentMode === 'single') {
Expand All @@ -26,31 +25,35 @@ export default function yaml(opts = {}) {

return {
name: 'yaml',

transform(content, id) {
if (!extensions.some((ext) => id.toLowerCase().endsWith(ext))) return null;
if (!filter(id)) return null;

let data = loadMethod(content);

if (typeof options.transform === 'function') {
const result = options.transform(data, id);
// eslint-disable-next-line no-undefined
if (result !== undefined) {
data = result;
transform: {
filter: {
id: {
include,
exclude
}
},
handler(content, id) {
let data = loadMethod(content);

if (typeof options.transform === 'function') {
const result = options.transform(data, id);
// eslint-disable-next-line no-undefined
if (result !== undefined) {
data = result;
}
}
}

const keys = Object.keys(data).filter((key) => key === makeLegalIdentifier(key));
const code = `var data = ${toSource(data)};\n\n`;
const exports = ['export default data;']
.concat(keys.map((key) => `export var ${key} = data.${key};`))
.join('\n');
const keys = Object.keys(data).filter((key) => key === makeLegalIdentifier(key));
const code = `var data = ${toSource(data)};\n\n`;
const exports = ['export default data;']
.concat(keys.map((key) => `export var ${key} = data.${key};`))
.join('\n');

return {
code: code + exports,
map: { mappings: '' }
};
return {
code: code + exports,
map: { mappings: '' }
};
}
}
};
}
45 changes: 0 additions & 45 deletions packages/yaml/test/test.js
Original file line number Diff line number Diff line change
Expand Up @@ -98,48 +98,3 @@ test('bad documentMode', async (t) => {

t.throws(exec);
});

test('file extension not in the list', async (t) => {
const content = 'some content';
const id = 'testfile.unknown';
const plugin = yaml();
const output = plugin.transform(content, id);

t.is(output, null, 'Should return null for unlisted extensions');
});

test('file passes the filter', async (t) => {
const content = 'some content';
const id = 'testfile.yaml';
const plugin = yaml({ include: '**/*.yaml' });
const output = plugin.transform(content, id);

t.not(output, null, 'Should not return null for files passing the filter');
});

test('file does not pass the filter', async (t) => {
const content = 'some content';
const id = 'testfile.yaml';
const plugin = yaml({ exclude: '**/*.yaml' });
const output = plugin.transform(content, id);

t.is(output, null, 'Should return null for files not passing the filter');
});

test('uses custom extensions', async (t) => {
const content = 'some content';
const id = 'testfile.custom';
const plugin = yaml({ extensions: ['.custom'] });
const output = plugin.transform(content, id);

t.not(output, null, 'Should not return null for files with custom extensions');
});

test('does not process non-custom extensions', async (t) => {
const content = 'some content';
const id = 'testfile.yaml';
const plugin = yaml({ extensions: ['.custom'] });
const output = plugin.transform(content, id);

t.is(output, null, 'Should return null for files without custom extensions');
});