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// Licensed under BSD 3-Clause - see LICENSE.txt or git.io/sfdc-license
import fs from 'fs';
import I from 'immutable';
import path from 'path';
import gulp from 'gulp';
import gulpRename from 'gulp-rename';
import through from 'through2';
import discardComments from 'postcss-discard-comments';
import { toList } from '../../../shared/utils/tree';
import paths from '../../helpers/paths';
import * as gulpHelpers from '../../helpers/gulp';
import { uiJson } from '../../ui';
const MODULE_NAME = 'salesforce-lightning-design-system';
/**
* Store paths
*/
const root = path.resolve(__dirname, '../../../');
const rootPath = path.resolve.bind(path, root);
const distPath = path.resolve.bind(path, paths.dist);
/**
* Regex to remove BEM -- modifier from source
*/
export const regex = [/(\.\S.*[\S]+.(--)+.*)(\,)+?\B/g, /\,[\n\s]*(\.\S.*[\S]+.(--)+.*)\b(\s|\]\))/g];
/**
* Store ui.json in a keyed collection object
* Map : string -> object
*/
const ui = I.Map(JSON.parse(uiJson()));
/**
* Parse ui.json and store components from collection since we're
* only concerned about components and not utilities
* fromJs : object -> Map
*/
const components = I.fromJS(ui.get('components'));
/**
* Empty array to store components that match the annotations we're looking for
*/
let rollup = [];
/**
* Helper function to store paths in a friendly way
* @param {string} c - Top level component
* @param {string} v - Component variant, if it exists
* setPath : component, variant -> string
*/
const setPath = (c, v) => {
const component = c.get('id');
const variant = c.get('id') === v.get('id') ? 'base' : v.get('id');
return `${component}/${variant}`;
};
/**
* Parse and store import paths based on lwc annotations
* @param {Map} c - Immutable Map of components
*/
const readLwcAnnotations = (c) => {
c.map((x) => {
toList(x)
.filter((item) => item.getIn(['annotations', 'lwc']))
.map((z) => rollup.push(setPath(x, z)));
});
};
/**
* Writes a new scss file into ui/components that has the imports for
* all components with @lwc annotations
* @param {array} packages
* @note Will sort alphabetically
*/
export const writeSanitizedScssFile = (packages) => {
const file = rootPath('ui/components/_index.sanitized.scss');
let pathImports = [];
packages.map((t) => {
pathImports.push(`@import '${t}/index';`);
});
let content = [
'// Copyright (c) 2015-present, salesforce.com, inc. All rights reserved',
'\n',
'// Licensed under BSD 3-Clause - see LICENSE.txt or git.io/sfdc-license',
'\n\n',
pathImports.sort((a, b) => a.localeCompare(b)).join('\n'),
'\n',
].join('');
try {
fs.writeFileSync(file, content);
} catch (err) {
console.log(`Unable to write file - ${err}`);
}
};
/**
* Writes a new css file into ui/components that has the imports for
* all components with @lwc annotations, this file is for lwc to chunk
* files using @import statements
* @param {array} packages
* @note Will sort alphabetically
*/
export const writeSanitizedCssFile = (packages) => {
const file = distPath(`assets/styles/${MODULE_NAME}-imports.sanitized.css`);
let pathImports = [];
packages.map((t) => {
pathImports.push(`@import '../../css/${t}/index.css';`);
});
let content = [
'/* Copyright (c) 2015-present, salesforce.com, inc. All rights reserved',
'\n',
'Licensed under BSD 3-Clause - see LICENSE.txt or git.io/sfdc-license */',
'\n\n',
"@import '../../css/common/index.css';",
'\n',
pathImports.sort((a, b) => a.localeCompare(b)).join('\n'),
'\n',
].join('');
try {
fs.writeFileSync(file, content);
} catch (err) {
console.log(`Unable to write file - ${err}`);
}
};
/**
* We need to dynamically generate a common file to be used as an import
* @param {callback} done
*/
export const writeCommonCss = (done) => {
const dir = rootPath(`.css/common`);
const file = rootPath(`${dir}/index.scss`);
let content = [
'/* Copyright (c) 2015-present, salesforce.com, inc. All rights reserved',
'\n',
'Licensed under BSD 3-Clause - see LICENSE.txt or git.io/sfdc-license */',
'\n\n',
"@import 'dist/scss/init';",
'\n',
"@import 'dist/scss/vendor/normalize-sanitized';",
'\n',
'@include core($scoped: false, $globals: false);',
'\n',
].join('');
try {
if (fs.existsSync(dir)) {
fs.writeFileSync(file, content);
} else {
fs.mkdir(dir, (err) => {
if (err) throw err;
fs.writeFileSync(file, content);
});
}
} catch (err) {
console.log(`Unable to write file - ${err}`);
}
if (done) done();
};
/**
* Write sanitized version to assets/styles so it can be copied
* and minified with dist script runs
*/
export const writeSanitizedCss = (done) => {
gulp
.src('ui/index-sanitized.scss')
.pipe(gulpHelpers.writeScss({ outputStyle: 'expanded' }))
.pipe(gulpHelpers.writePostCss([discardComments()]))
// Need to format to ensure proper parsing
.pipe(gulpHelpers.writePrettierCss())
// Remove BEM -- modifiers
.pipe(
through.obj((file, enc, next) => {
let newFile = file.clone();
newFile.contents = Buffer.from(file.contents.toString().replace(regex[0], '').replace(regex[1], ''));
return next(null, newFile);
}),
)
// For cleanup
.pipe(gulpHelpers.writePrettierCss())
.pipe(
gulpRename((path) => {
path.basename = `${MODULE_NAME}.sanitized`;
path.extname = '.css';
return path;
}),
)
.pipe(gulp.dest(distPath('assets/styles/')));
if (done) done();
};
/**
* Compiles sanitized version of SLDS component files
*/
export const writeSanitizedComponentCss = () => {
return (
gulp
.src([paths.rootPath('.css/**/index.scss'), paths.rootPath('.css/**/touch.scss')])
.pipe(gulpHelpers.writeScss({ outputStyle: 'expanded' }))
.pipe(gulpHelpers.writePostCss([discardComments()]))
// Need to format to ensure proper parsing
.pipe(gulpHelpers.writePrettierCss())
.pipe(
through.obj((file, enc, next) => {
let newFile = file.clone();
newFile.contents = Buffer.from(
file.contents.toString().replace(regex[0], '').replace(regex[1], ''),
);
return next(null, newFile);
}),
)
// For cleanup
.pipe(gulpHelpers.writePrettierCss())
.pipe(gulp.dest(distPath('css/')))
);
};
/**
* Export for gulp task
* @param {callback} done
*/
export const generateSanitizedScss = (done) => {
readLwcAnnotations(components);
writeSanitizedScssFile(rollup);
writeSanitizedCssFile(rollup);
if (done) done();
};
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