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chore(postcss-minify-gradients): replace is-color-stop with own code (#…
…1181) Get rid of 7 dependencies in a cssnano install. is-color-stop duplicates functionality available from other dependencies. It copies unit parsing code directly from postcss-value-parser. cssnano has color detection logic is already available in colord.
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packages/postcss-minify-gradients/src/__tests__/isColorStop.js
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,9 @@ | ||
| import isColorStop from '../isColorStop.js'; | ||
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| test('should recognise color stops', () => { | ||
| expect(isColorStop('yellow')).toBe(true); | ||
| expect(isColorStop('yellow', '12px')).toBe(true); | ||
| expect(isColorStop('yellow', 'px')).toBe(false); | ||
| expect(isColorStop('yellow', 'calc(100%)')).toBe(true); | ||
| expect(isColorStop(undefined)).toBe(false); | ||
| }); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,52 @@ | ||
| import { unit } from 'postcss-value-parser'; | ||
| import { colord, extend } from 'colord'; | ||
| import namesPlugin from 'colord/plugins/names'; | ||
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| extend([namesPlugin]); | ||
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| /* Code derived from https://github.com/pigcan/is-color-stop */ | ||
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| const lengthArray = [ | ||
| 'PX', | ||
| 'IN', | ||
| 'CM', | ||
| 'MM', | ||
| 'EM', | ||
| 'REM', | ||
| 'POINTS', | ||
| 'PC', | ||
| 'EX', | ||
| 'CH', | ||
| 'VW', | ||
| 'VH', | ||
| 'VMIN', | ||
| 'VMAX', | ||
| '%', | ||
| ]; | ||
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| function isCSSLengthUnit(input) { | ||
| return lengthArray.includes(input.toUpperCase()); | ||
| } | ||
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| function isStop(str) { | ||
| let stop = !str; | ||
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| if (!stop) { | ||
| const node = unit(str); | ||
| if (node) { | ||
| if ( | ||
| node.number === 0 || | ||
| (!isNaN(node.number) && isCSSLengthUnit(node.unit)) | ||
| ) { | ||
| stop = true; | ||
| } | ||
| } else { | ||
| stop = /^calc\(\S+\)$/g.test(str); | ||
| } | ||
| } | ||
| return stop; | ||
| } | ||
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| export default function isColorStop(color, stop) { | ||
| return colord(color).isValid() && isStop(stop); | ||
| } |
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