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gulpfile.js
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gulpfile.js
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const fs = require('fs');
const babel = require('gulp-babel'),
gulp = require('gulp'),
sourcemaps = require('gulp-sourcemaps'),
typescript = require('gulp-typescript'),
revertPath = require('gulp-revert-path');
const typescriptFiles = ['./src/**/*.ts', '!./src/**/__tests__/*.ts'];
const babelrc = JSON.parse(fs.readFileSync('./.babelrc', {encoding: 'utf8'}));
const babelParseTypescriptConfig = {
babelrc: false,
plugins: ['@babel/syntax-typescript'],
};
const babelEs5Config = {
presets: [
'@babel/preset-stage-1',
'@babel/preset-env',
'@babel/preset-react',
],
plugins: ['@babel/plugin-proposal-class-properties'],
};
function buildTypescriptProjectTo(tsProject, destination) {
return gulp
.src(typescriptFiles)
.pipe(sourcemaps.init())
.pipe(tsProject())
.js.pipe(babel())
.pipe(sourcemaps.write())
.pipe(gulp.dest(destination));
}
function buildOldJavascriptTo(destination) {
return gulp
.src('./src/**/*.js')
.pipe(sourcemaps.init())
.pipe(babel(babelEs5Config))
.pipe(sourcemaps.write())
.pipe(gulp.dest(destination));
}
function dts() {
return gulp
.src(typescriptFiles)
.pipe(babel(babelParseTypescriptConfig))
.pipe(revertPath()) // keep .ts and .tsx extensions
.pipe(gulp.dest('dist/dts'));
}
function es5() {
const tsProject = typescript.createProject('tsconfig.json', {
module: 'commonjs',
target: 'es5',
allowSyntheticDefaultImports: true,
});
buildTypescriptProjectTo(tsProject, 'dist/es5');
return buildOldJavascriptTo('dist/es5');
}
function es5module() {
const tsProject = typescript.createProject('tsconfig.json', {
module: 'es6',
target: 'es5',
allowSyntheticDefaultImports: true,
});
buildTypescriptProjectTo(tsProject, 'dist/es5module');
return buildOldJavascriptTo('dist/es5module');
}
function es6module() {
const tsProject = typescript.createProject('tsconfig.json', {
module: 'es6',
target: 'es6',
allowSyntheticDefaultImports: true,
});
buildTypescriptProjectTo(tsProject, 'dist/es6module');
return buildOldJavascriptTo('dist/es6module');
}
gulp.task('default', gulp.series(es5, es5module, es6module, dts));