vsc-material-theme/.gulp/tasks/themes.ts

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import * as fs from 'fs';
import * as gulp from 'gulp';
import * as gulpUtil from 'gulp-util';
import * as mustache from 'mustache';
import * as path from 'path';
import { HR, MESSAGE_GENERATED, MESSAGE_THEME_VARIANT_PARSE_ERROR } from './../consts/log';
import { CHARSET } from "../../extensions/consts/files";
import { IThemeVariant } from './../interfaces/itheme-variant';
import paths from '../../extensions/consts/paths';
let commons = require('../../extensions/commands/accents-setter/commons.json');
let themeTemplateFileContent: string = fs.readFileSync(path.join(paths.SRC, `/themes/theme-template-color-theme.json`), CHARSET);
let themeVariants: IThemeVariant[] = [];
let fileNames: string[] = fs.readdirSync(path.join(paths.SRC, `./themes/settings/specific`));
// build theme variants for later use in templating
fileNames.forEach(fileName => {
let filePath: string = path.join(paths.SRC, `./themes/settings/specific`, `./${fileName}`);
let contents: string = fs.readFileSync(filePath, CHARSET);
try {
themeVariants.push(JSON.parse(contents));
} catch (error) {
gulpUtil.log(MESSAGE_THEME_VARIANT_PARSE_ERROR, error);
}
});
/**
* Themes task
* Builds Themes
*/
export default gulp.task('build:themes', () => {
gulpUtil.log(gulpUtil.colors.gray(HR));
themeVariants.forEach(variant => {
let filePath = path.join(paths.THEMES, `./${variant.name}.json`);
let templateData = { commons, variant };
let templateJSON: any = JSON.parse(mustache.render(themeTemplateFileContent, templateData));
let templateJSONStringified: string = JSON.stringify(templateJSON, null, 2);
fs.writeFileSync(filePath, templateJSONStringified, CHARSET);
gulpUtil.log(MESSAGE_GENERATED, gulpUtil.colors.green(filePath));
});
gulpUtil.log(gulpUtil.colors.gray(HR));
});