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| 1 | +/** |
| 2 | + * @author Ben Briggs |
| 3 | + * @license MIT |
| 4 | + * @module cssnano:preset:default |
| 5 | + * @overview |
| 6 | + * |
| 7 | + * This default preset for cssnano only includes transforms that make no |
| 8 | + * assumptions about your CSS other than what is passed in. In previous |
| 9 | + * iterations of cssnano, assumptions were made about your CSS which caused |
| 10 | + * output to look different in certain use cases, but not others. These |
| 11 | + * transforms have been moved from the defaults to other presets, to make |
| 12 | + * this preset require only minimal configuration. |
| 13 | + */ |
| 14 | + |
| 15 | +// const cssDeclarationSorter = require('css-declaration-sorter'); |
| 16 | +const postcssDiscardComments = require('postcss-discard-comments'); |
| 17 | +const postcssReduceInitial = require('postcss-reduce-initial'); |
| 18 | +const postcssMinifyGradients = require('postcss-minify-gradients'); |
| 19 | +// const postcssSvgo = require('postcss-svgo'); |
| 20 | +const postcssReduceTransforms = require('postcss-reduce-transforms'); |
| 21 | +const postcssConvertValues = require('postcss-convert-values'); |
| 22 | +// const postcssCalc = require('postcss-calc'); |
| 23 | +const postcssColormin = require('postcss-colormin').default; |
| 24 | +const postcssOrderedValues = require('postcss-ordered-values'); |
| 25 | +const postcssMinifySelectors = require('postcss-minify-selectors'); |
| 26 | +const postcssMinifyParams = require('postcss-minify-params'); |
| 27 | +// const postcssNormalizeCharset = require('postcss-normalize-charset'); |
| 28 | +const postcssMinifyFontValues = require('postcss-minify-font-values'); |
| 29 | +const postcssNormalizeUrl = require('postcss-normalize-url'); |
| 30 | +const postcssMergeLonghand = require('postcss-merge-longhand'); |
| 31 | +const postcssDiscardDuplicates = require('postcss-discard-duplicates'); |
| 32 | +// const postcssDiscardOverridden = require('postcss-discard-overridden'); |
| 33 | +const postcssNormalizeRepeatStyle = require('postcss-normalize-repeat-style'); |
| 34 | +const postcssMergeRules = require('postcss-merge-rules'); |
| 35 | +const postcssDiscardEmpty = require('postcss-discard-empty'); |
| 36 | +const postcssUniqueSelectors = require('postcss-unique-selectors'); |
| 37 | +const postcssNormalizeString = require('postcss-normalize-string'); |
| 38 | +const postcssNormalizePositions = require('postcss-normalize-positions'); |
| 39 | +const postcssNormalizeWhitespace = require('postcss-normalize-whitespace'); |
| 40 | +// const postcssNormalizeUnicode = require('postcss-normalize-unicode'); |
| 41 | +const postcssNormalizeDisplayValues = require('postcss-normalize-display-values'); |
| 42 | +// const postcssNormalizeTimingFunctions = require('postcss-normalize-timing-functions'); |
| 43 | +const rawCache = require('cssnano-util-raw-cache'); |
| 44 | + |
| 45 | +const defaultOpts = { |
| 46 | + convertValues: { |
| 47 | + length: false, |
| 48 | + }, |
| 49 | +// normalizeCharset: { |
| 50 | +// add: false, |
| 51 | +// }, |
| 52 | + cssDeclarationSorter: { |
| 53 | + exclude: true, |
| 54 | + }, |
| 55 | +}; |
| 56 | + |
| 57 | +module.exports = function defaultPreset (opts = {}) { |
| 58 | + const options = Object.assign({}, defaultOpts, opts); |
| 59 | + |
| 60 | + const plugins = [ |
| 61 | + [postcssDiscardComments, options.discardComments], |
| 62 | + [postcssMinifyGradients, options.minifyGradients], |
| 63 | + [postcssReduceInitial, options.reduceInitial], |
| 64 | + // [postcssSvgo, options.svgo], |
| 65 | + [postcssNormalizeDisplayValues, options.normalizeDisplayValues], |
| 66 | + [postcssReduceTransforms, options.reduceTransforms], |
| 67 | + [postcssColormin, options.colormin], |
| 68 | + // [postcssNormalizeTimingFunctions, options.normalizeTimingFunctions], |
| 69 | + // [postcssCalc, options.calc], |
| 70 | + [postcssConvertValues, options.convertValues], |
| 71 | + [postcssOrderedValues, options.orderedValues], |
| 72 | + [postcssMinifySelectors, options.minifySelectors], |
| 73 | + [postcssMinifyParams, options.minifyParams], |
| 74 | + // [postcssNormalizeCharset, options.normalizeCharset], |
| 75 | + // [postcssDiscardOverridden, options.discardOverridden], |
| 76 | + [postcssNormalizeString, options.normalizeString], |
| 77 | + // [postcssNormalizeUnicode, options.normalizeUnicode], |
| 78 | + [postcssMinifyFontValues, options.minifyFontValues], |
| 79 | + [postcssNormalizeUrl, options.normalizeUrl], |
| 80 | + [postcssNormalizeRepeatStyle, options.normalizeRepeatStyle], |
| 81 | + [postcssNormalizePositions, options.normalizePositions], |
| 82 | + [postcssNormalizeWhitespace, options.normalizeWhitespace], |
| 83 | + [postcssMergeLonghand, options.mergeLonghand], |
| 84 | + [postcssDiscardDuplicates, options.discardDuplicates], |
| 85 | + [postcssMergeRules, options.mergeRules], |
| 86 | + [postcssDiscardEmpty, options.discardEmpty], |
| 87 | + [postcssUniqueSelectors, options.uniqueSelectors], |
| 88 | + // [cssDeclarationSorter, options.cssDeclarationSorter], |
| 89 | + [rawCache, options.rawCache], |
| 90 | + ]; |
| 91 | + |
| 92 | + return {plugins}; |
| 93 | +} |
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