1 | 'use strict';
|
2 |
|
3 | function _interopDefault (ex) { return (ex && (typeof ex === 'object') && 'default' in ex) ? ex['default'] : ex; }
|
4 |
|
5 | var _regeneratorRuntime = _interopDefault(require('babel-runtime/regenerator'));
|
6 | var _JSON$stringify = _interopDefault(require('babel-runtime/core-js/json/stringify'));
|
7 | var _asyncToGenerator = _interopDefault(require('babel-runtime/helpers/asyncToGenerator'));
|
8 | var fs = _interopDefault(require('fs-extra'));
|
9 | var path = require('path');
|
10 | var less = _interopDefault(require('less'));
|
11 | var rollupPluginutils = require('rollup-pluginutils');
|
12 |
|
13 |
|
14 |
|
15 |
|
16 |
|
17 |
|
18 | function insertStyle(css) {
|
19 | if (!css) return;
|
20 |
|
21 | if (typeof window == 'undefined') return;
|
22 | var style = document.createElement('style');
|
23 | style.setAttribute('media', 'screen');
|
24 |
|
25 | style.innerHTML = css;
|
26 | document.head.appendChild(style);
|
27 | return css;
|
28 | }
|
29 |
|
30 | var renderSync = function renderSync(code, option) {
|
31 | return less.render(code, option).then(function (output) {
|
32 | return output.css;
|
33 | }, function (error) {
|
34 | throw error;
|
35 | });
|
36 | };
|
37 |
|
38 | var fileCount = 0;
|
39 |
|
40 | function plugin() {
|
41 | var options = arguments.length <= 0 || arguments[0] === undefined ? { insert: false } : arguments[0];
|
42 |
|
43 | var filter = rollupPluginutils.createFilter(options.include || ['**/*.less', '**/*.css'], options.exclude || 'node_modules/**');
|
44 |
|
45 | var injectFnName = '__$styleInject';
|
46 | return {
|
47 | name: 'less',
|
48 | intro: function intro() {
|
49 | return insertStyle.toString().replace(/insertStyle/, injectFnName);
|
50 | },
|
51 | transform: function transform(code, id) {
|
52 | var _this = this;
|
53 |
|
54 | return _asyncToGenerator(_regeneratorRuntime.mark(function _callee() {
|
55 | var css, exportCode;
|
56 | return _regeneratorRuntime.wrap(function _callee$(_context) {
|
57 | while (1) {
|
58 | switch (_context.prev = _context.next) {
|
59 | case 0:
|
60 | if (filter(id)) {
|
61 | _context.next = 2;
|
62 | break;
|
63 | }
|
64 |
|
65 | return _context.abrupt('return', null);
|
66 |
|
67 | case 2:
|
68 | fileCount++;
|
69 |
|
70 | _context.prev = 3;
|
71 |
|
72 | options.option = options.option || {};
|
73 | options.option['filename'] = id;
|
74 | options.output = options.output || 'rollup.build.css';
|
75 |
|
76 | _context.next = 9;
|
77 | return renderSync(code, options.option);
|
78 |
|
79 | case 9:
|
80 | css = _context.sent;
|
81 |
|
82 | if (!(options.output && isFunc(options.output))) {
|
83 | _context.next = 14;
|
84 | break;
|
85 | }
|
86 |
|
87 | _context.next = 13;
|
88 | return options.output(css, id);
|
89 |
|
90 | case 13:
|
91 | css = _context.sent;
|
92 |
|
93 | case 14:
|
94 |
|
95 | if (options.output && isString(options.output)) {
|
96 | if (fileCount == 1) {
|
97 |
|
98 | fs.removeSync(options.output);
|
99 | }
|
100 | fs.appendFileSync(options.output, css);
|
101 | }
|
102 |
|
103 | exportCode = '';
|
104 |
|
105 |
|
106 | if (options.insert != false) {
|
107 | exportCode = 'export default ' + injectFnName + '(' + _JSON$stringify(css.toString()) + ');';
|
108 | } else {
|
109 | exportCode = 'export default ' + _JSON$stringify(css.toString()) + ';';
|
110 | }
|
111 | return _context.abrupt('return', {
|
112 | code: exportCode,
|
113 | map: { mappings: '' }
|
114 | });
|
115 |
|
116 | case 20:
|
117 | _context.prev = 20;
|
118 | _context.t0 = _context['catch'](3);
|
119 | throw _context.t0;
|
120 |
|
121 | case 23:
|
122 | case 'end':
|
123 | return _context.stop();
|
124 | }
|
125 | }
|
126 | }, _callee, _this, [[3, 20]]);
|
127 | }))();
|
128 | }
|
129 | };
|
130 | };
|
131 |
|
132 | function isString(str) {
|
133 | if (typeof str == 'string') {
|
134 | return true;
|
135 | } else {
|
136 | return false;
|
137 | }
|
138 | }
|
139 |
|
140 | function isFunc(fn) {
|
141 | if (typeof fn == 'function') {
|
142 | return true;
|
143 | } else {
|
144 | return false;
|
145 | }
|
146 | }
|
147 |
|
148 | module.exports = plugin; |
\ | No newline at end of file |