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Merge pull request #287 from core-ds/feature/postcss-perfom
Добавлен кастомный postcss плагин postcss-global-variables
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--- | ||
'arui-scripts': minor | ||
--- | ||
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Добавлен кастомный плагин postcss-global-variables, для оптимизации времени обработки глобальных переменных. | ||
@csstools/postcss-global-data *удален* | ||
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Проекты, которые использовали в оверрайдах кастомные настройки для плагина @csstools/postcss-global-data, должны перейти на использование postcss-global-variables следующим образом | ||
``` | ||
postcss: (config) => { | ||
const overrideConfig = config.map((plugin) => { | ||
if (plugin.name === 'postCssGlobalVariables') { | ||
return { | ||
...plugin, | ||
options: plugin.options.concat([ | ||
// ваши файлы | ||
]) | ||
} | ||
} | ||
return plugin; | ||
}); | ||
return overrideConfig; | ||
} | ||
``` | ||
Плагин работает только с глобальными переменными, если вам надо вставить что-то другое, отличное от глобальных переменных, вам нужно будет добавить @csstools/postcss-global-data в свой проект самостоятельно |
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53 changes: 53 additions & 0 deletions
53
packages/arui-scripts/src/plugins/postcss-global-variables/postcss-global-variables.ts
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import type { AtRule, Plugin, PluginCreator, Rule } from 'postcss'; | ||
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import { insertParsedCss, parseImport, parseMediaQuery, parseVariables } from './utils/utils'; | ||
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type PluginOptions = { | ||
files?: string[]; | ||
}; | ||
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const postCssGlobalVariables: PluginCreator<PluginOptions> = (opts?: PluginOptions) => { | ||
const options = { | ||
files: [], | ||
...opts, | ||
}; | ||
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const parsedVariables: Record<string, string> = {}; | ||
const parsedCustomMedia: Record<string, AtRule> = {}; | ||
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let rulesSelectors = new Set<Rule>(); | ||
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return { | ||
postcssPlugin: '@alfalab/postcss-global-variables', | ||
prepare(): Plugin { | ||
return { | ||
postcssPlugin: '@alfalab/postcss-global-variables', | ||
Once(root, postcssHelpers): void { | ||
if (!Object.keys(parsedVariables).length) { | ||
options.files.forEach((filePath) => { | ||
const importedCss = parseImport(root, postcssHelpers, filePath); | ||
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parseVariables(importedCss, parsedVariables); | ||
parseMediaQuery(importedCss, parsedCustomMedia); | ||
}); | ||
} | ||
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const rootRule = insertParsedCss(root, parsedVariables, parsedCustomMedia); | ||
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root.append(rootRule); | ||
rulesSelectors.add(rootRule) | ||
}, | ||
OnceExit(): void { | ||
rulesSelectors.forEach((rule) => { | ||
rule.remove(); | ||
}); | ||
rulesSelectors = new Set<Rule>(); | ||
}, | ||
}; | ||
}, | ||
}; | ||
}; | ||
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postCssGlobalVariables.postcss = true; | ||
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export { postCssGlobalVariables }; |
69 changes: 69 additions & 0 deletions
69
...scripts/src/plugins/postcss-global-variables/utils/__tests__/add-global-variable.tests.ts
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import { Rule } from 'postcss'; | ||
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import { addGlobalVariable } from '../utils'; | ||
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describe('addGlobalVariable', () => { | ||
it('Должен добавлять переменные, найденные в cssValue, в rootSelector', () => { | ||
const mockRootSelector = new Rule({ selector: ':root' }); | ||
const parsedVariables = { | ||
'--color-primary': '#ff0000', | ||
}; | ||
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addGlobalVariable('var(--color-primary)', mockRootSelector, parsedVariables); | ||
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expect(mockRootSelector.nodes).toMatchObject([ | ||
{ prop: '--color-primary', value: '#ff0000' } | ||
]); | ||
}); | ||
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it('Должен рекурсивно добавлять вложенные переменные', () => { | ||
const mockRootSelector = new Rule({ selector: ':root' }); | ||
const mockRootSelectorWithSpace = new Rule({ selector: ':root' }); | ||
const mockRootSelectorWithNewLine = new Rule({ selector: ':root' }); | ||
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const parsedVariables = { | ||
'--color-primary': 'var(--color-secondary)', | ||
'--color-secondary': '#00ff00', | ||
}; | ||
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const parsedVariablesWithSpace = { | ||
'--color-primary': 'var( --color-secondary )', | ||
'--color-secondary': '#00ff00', | ||
}; | ||
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const parsedVariablesWithNewLine = { | ||
'--color-primary': 'var(\n --color-secondary\n )', | ||
'--color-secondary': '#00ff00', | ||
}; | ||
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addGlobalVariable('var(--color-primary)', mockRootSelector, parsedVariables); | ||
addGlobalVariable('var(--color-primary)', mockRootSelectorWithSpace, parsedVariablesWithSpace); | ||
addGlobalVariable('var(--color-primary)', mockRootSelectorWithNewLine, parsedVariablesWithNewLine); | ||
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expect(mockRootSelector.nodes).toMatchObject([ | ||
{ prop: '--color-primary', value: 'var(--color-secondary)' }, | ||
{ prop: '--color-secondary', value: '#00ff00' }, | ||
]); | ||
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expect(mockRootSelectorWithSpace.nodes).toMatchObject([ | ||
{ prop: '--color-primary', value: 'var( --color-secondary )' }, | ||
{ prop: '--color-secondary', value: '#00ff00' }, | ||
]); | ||
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expect(mockRootSelectorWithNewLine.nodes).toMatchObject([ | ||
{ prop: '--color-primary', value: 'var(\n --color-secondary\n )' }, | ||
{ prop: '--color-secondary', value: '#00ff00' }, | ||
]); | ||
}); | ||
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it('Не должен добавлять переменные, если их нет в parsedVariables', () => { | ||
const mockRootSelector = new Rule({ selector: ':root' }); | ||
const parsedVariables = { | ||
'color-primary': '#ff0000', | ||
}; | ||
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addGlobalVariable('var(--color-secondary)', mockRootSelector, parsedVariables); | ||
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expect(mockRootSelector.nodes).toEqual([]); | ||
}); | ||
}); |
17 changes: 17 additions & 0 deletions
17
...cripts/src/plugins/postcss-global-variables/utils/__tests__/get-media-query-name.tests.ts
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import type { AtRule } from 'postcss'; | ||
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import { getMediaQueryName, } from '../utils'; | ||
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describe('getMediaQueryName', () => { | ||
it('Должен возвращать имя медиа-запроса', () => { | ||
const rule: AtRule = { params: 'screen and (min-width: 768px)' } as AtRule; | ||
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expect(getMediaQueryName(rule)).toBe('screen'); | ||
}); | ||
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it('Должен возвращать пустую строку, если params пустой', () => { | ||
const rule: AtRule = { params: '' } as AtRule; | ||
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expect(getMediaQueryName(rule)).toBe(''); | ||
}); | ||
}); |
29 changes: 29 additions & 0 deletions
29
...rui-scripts/src/plugins/postcss-global-variables/utils/__tests__/parse-variables.tests.ts
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import type { Declaration,Root } from 'postcss'; | ||
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import { parseVariables } from '../utils'; | ||
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describe('parseVariables', () => { | ||
it('Должен корректно заполнять объект переменными на основе импортируемого файла', () => { | ||
const parsedVariables: Record<string, string> = {}; | ||
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const mockImportedFile = { | ||
walkDecls: (callback: (decl: Declaration, index: number) => false | void) => { | ||
const mockDeclarations: Declaration[] = [ | ||
{ prop: '--color-primary', value: '#3498db' } as Declaration, | ||
{ prop: '--font-size', value: 'var(--gap-24)' } as Declaration, | ||
]; | ||
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mockDeclarations.forEach(callback); | ||
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return false; | ||
} | ||
}; | ||
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parseVariables(mockImportedFile as Root, parsedVariables); | ||
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expect(parsedVariables).toEqual({ | ||
'--color-primary': '#3498db', | ||
'--font-size': 'var(--gap-24)', | ||
}); | ||
}); | ||
}); |
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83
packages/arui-scripts/src/plugins/postcss-global-variables/utils/utils.ts
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import fs from 'fs'; | ||
import path from 'path'; | ||
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import { AtRule, Declaration, Helpers, Root, Rule } from 'postcss'; | ||
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export const getMediaQueryName = (rule: AtRule) => rule.params.split(' ')[0]; | ||
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export function parseImport(root: Root, postcssHelpers: Helpers, filePath: string) { | ||
let resolvedPath = ''; | ||
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try { | ||
resolvedPath = path.resolve(filePath); | ||
} catch (err) { | ||
throw new Error(`Failed to read ${filePath} with error ${(err instanceof Error) ? err.message : err}`); | ||
} | ||
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postcssHelpers.result.messages.push({ | ||
type: 'dependency', | ||
plugin: 'postcss-global-environments', | ||
file: resolvedPath, | ||
parent: root.source?.input?.file, | ||
}); | ||
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const fileContents = fs.readFileSync(resolvedPath, 'utf8'); | ||
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return postcssHelpers.postcss.parse(fileContents, { from: resolvedPath }); | ||
} | ||
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export const parseVariables = (importedFile: Root, parsedVariables: Record<string, string>) => { | ||
importedFile.walkDecls((decl) => { | ||
// eslint-disable-next-line no-param-reassign | ||
parsedVariables[decl.prop] = decl.value; | ||
}); | ||
}; | ||
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export const parseMediaQuery = (importedFile: Root, parsedCustomMedia: Record<string, AtRule>) => { | ||
importedFile.walkAtRules('custom-media', (mediaRule) => { | ||
const mediaName = getMediaQueryName(mediaRule); | ||
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// eslint-disable-next-line no-param-reassign | ||
parsedCustomMedia[mediaName] = mediaRule; | ||
}); | ||
}; | ||
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export function addGlobalVariable(cssValue: string, rootSelector: Rule, parsedVariables: Record<string, string>) { | ||
const variableMatches = cssValue.match(/var\(\s*--([^)]+)\s*\)/g); | ||
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if (variableMatches) { | ||
variableMatches.forEach((match) => { | ||
// var(--gap-24) => --gap-24 | ||
const variableName = match.slice(4, -1).trim(); | ||
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if (parsedVariables[variableName]) { | ||
rootSelector.append(new Declaration({ prop: variableName, value: parsedVariables[variableName] })); | ||
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// Рекурсивно проходимся по значениям css, там тоже могут использоваться переменные | ||
addGlobalVariable(parsedVariables[variableName], rootSelector, parsedVariables); | ||
} | ||
}); | ||
} | ||
} | ||
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export const insertParsedCss = (root: Root, parsedVariables: Record<string, string>, parsedCustomMedia: Record<string, AtRule>): Rule => { | ||
const rootRule = new Rule({ selector: ':root' }); | ||
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root.walkDecls((decl) => { | ||
addGlobalVariable(decl.value, rootRule, parsedVariables); | ||
}); | ||
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root.walkAtRules('media', (rule) => { | ||
const mediaFullName = getMediaQueryName(rule); | ||
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if (mediaFullName.startsWith('(--')) { | ||
const mediaName = mediaFullName.slice(1, -1); | ||
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if (parsedCustomMedia[mediaName]) { | ||
root.append(parsedCustomMedia[mediaName]); | ||
} | ||
} | ||
}); | ||
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return rootRule; | ||
}; |
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