| 1 | const multimatch = require('multimatch');
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| 2 |
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| 3 | const missingSupport = require('./missing-support');
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| 4 |
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| 5 | const Detector = require('./detect-feature-use');
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| 6 |
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| 7 | function doiuse(options) {
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| 8 | const {
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| 9 | browsers: browserQuery,
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| 10 | onFeatureUsage,
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| 11 | ignore: ignoreOptions,
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| 12 | ignoreFiles
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| 13 | } = options;
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| 14 | return {
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| 15 | info(opts = {}) {
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| 16 | const {
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| 17 | browsers,
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| 18 | features
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| 19 | } = missingSupport(browserQuery, opts.from);
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| 20 | return {
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| 21 | browsers,
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| 22 | features
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| 23 | };
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| 24 | },
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| 25 |
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| 26 | postcss(css, result) {
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| 27 | let from;
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| 28 |
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| 29 | if (css.source && css.source.input) {
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| 30 | from = css.source.input.file;
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| 31 | }
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| 32 |
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| 33 | let {
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| 34 | features
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| 35 | } = missingSupport(browserQuery, from);
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| 36 | let detector = new Detector(Object.keys(features));
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| 37 | return detector.process(css, function ({
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| 38 | feature,
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| 39 | usage,
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| 40 | ignore
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| 41 | }) {
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| 42 | if (ignore && ignore.indexOf(feature) !== -1) {
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| 43 | return;
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| 44 | }
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| 45 |
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| 46 | if (ignoreOptions && ignoreOptions.indexOf(feature) !== -1) {
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| 47 | return;
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| 48 | }
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| 49 |
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| 50 | if (ignoreFiles && multimatch(usage.source.input.from, ignoreFiles).length > 0) {
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| 51 | return;
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| 52 | }
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| 53 |
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| 54 | let messages = [];
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| 55 |
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| 56 | if (features[feature].missing) {
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| 57 | messages.push('not supported by: ' + features[feature].missing);
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| 58 | }
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| 59 |
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| 60 | if (features[feature].partial) {
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| 61 | messages.push('only partially supported by: ' + features[feature].partial);
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| 62 | }
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| 63 |
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| 64 | let message = features[feature].title + ' ' + messages.join(' and ') + ' (' + feature + ')';
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| 65 | result.warn(message, {
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| 66 | node: usage,
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| 67 | plugin: 'doiuse'
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| 68 | });
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| 69 |
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| 70 | if (onFeatureUsage) {
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| 71 | let loc = usage.source;
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| 72 | loc.original = css.source.input.map ? {
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| 73 | start: css.source.input.map.consumer().originalPositionFor(loc.start),
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| 74 | end: css.source.input.map.consumer().originalPositionFor(loc.end)
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| 75 | } : {
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| 76 | start: loc.start,
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| 77 | end: loc.end
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| 78 | };
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| 79 | message = (loc.original.start.source || loc.input.file || loc.input.from) + ':' + loc.original.start.line + ':' + loc.original.start.column + ': ' + message;
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| 80 | onFeatureUsage({
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| 81 | feature: feature,
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| 82 | featureData: features[feature],
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| 83 | usage: usage,
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| 84 | message: message
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| 85 | });
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| 86 | }
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| 87 | });
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| 88 | }
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| 89 |
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| 90 | };
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| 91 | }
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| 92 |
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| 93 | module.exports = doiuse; |
| \ | No newline at end of file |