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gulpfile.js
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gulpfile.js
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const gulp = require('gulp');
const PluginError = require('plugin-error');
const log = require('fancy-log');
const webpack = require('webpack');
const sass = require('sass');
const fs = require('fs');
const { spawn } = require('child_process');
const path = require("path");
const http = require('http');
function setProduction(done){
process.env.NODE_ENV = 'production';
done();
}
function setDevelopment(done){
process.env.NODE_ENV = 'development';
done();
}
function webpackOnBuild(done) {
const start = Date.now();
let end = null;
return function (err, stats) {
if (err) {
throw new PluginError("webpack", err);
}
log("[webpack]", stats.toString({
colors: true
}));
end = Date.now();
log("Build Completed, running for " + ((end - start)/1000)) + 's';
if (done) {
done(err);
}
};
}
function doWebpack(cb){
const webpackConfig = require('./webpack.config.workflow-viz');
webpack(webpackConfig).run(webpackOnBuild(cb));
}
function doDemoWebpack(cb){
const demoWebpackConfig = require('./webpack.config.demo');
webpack(demoWebpackConfig).run(webpackOnBuild(cb));
}
function watch(){
const webpackConfig = require('./webpack.config.workflow-viz');
webpack(webpackConfig).watch(300, webpackOnBuild());
}
function watchDemo(){
const demoWebpackConfig = require('./webpack.config.demo');
webpack(demoWebpackConfig).watch(300, webpackOnBuild());
}
function doBuildESModules(done){
const subP = spawn("npx", [
"babel",
path.join(__dirname, 'src'),
"--out-dir",
path.join(__dirname, 'es'),
"--env-name",
"esm"
], { stdio: "inherit" });
subP.on("close", (code)=>{
done();
});
}
function doWatchESModules(done){
const subP = spawn("npx", [
"babel",
path.join(__dirname, 'src'),
"--watch",
"--out-dir",
path.join(__dirname, 'es'),
"--env-name",
"esm"
], { stdio: "inherit" });
subP.on("close", (code)=>{
done();
});
}
function doRunLocalServer(done){
const httpServer = http.createServer(function(request, response){
let filePath = '.' + request.url;
if (filePath == './') {
filePath = './index.html';
}
const extname = String(path.extname(filePath)).toLowerCase();
const mimeTypes = {
'.html': 'text/html',
'.js': 'text/javascript',
'.css': 'text/css',
'.json': 'application/json',
'.png': 'image/png',
'.jpg': 'image/jpg',
'.gif': 'image/gif',
'.svg': 'image/svg+xml',
'.woff': 'application/font-woff',
'.ttf': 'application/font-ttf',
'.eot': 'application/vnd.ms-fontobject',
'.otf': 'application/font-otf',
};
const contentType = mimeTypes[extname] || 'text/html';
fs.readFile(filePath, function(error, content) {
response.writeHead(200, { 'Content-Type': contentType, 'Cache-Control': 'no-cache' });
response.end(content, 'utf-8');
});
});
httpServer.listen(8100);
console.log("Serving on port 8100");
httpServer.on("close", function(){
done();
});
}
function performSassBuild(done, options = {}){
const {
action = 'render',
cssOutputLocation = './dist/react-workflow-viz.min.css',
sourceMapLocation = './dist/react-workflow-viz.min.css.map',
...otherOpts
} = options;
const useOpts = { // Defaults, overriden by otherOpts
file: './src/styles.scss',
outFile: cssOutputLocation, // sourceMap location
outputStyle: 'compressed',
sourceMap: true,
...otherOpts
};
sass.render(useOpts, function(error, result) { // node-style callback from v3.0.0 onwards
if (error) {
console.error("Error", error.status, error.file, error.line + ':' + error.column);
console.log(error.message);
done();
} else {
//console.log(result.css.toString());
console.log("Finished compiling SCSS in", result.stats.duration, "ms");
console.log("Writing to", cssOutputLocation);
let countCompleted = 0;
fs.writeFile(cssOutputLocation, result.css.toString(), function(err){
if (err){
return console.error(err);
}
console.log("Wrote " + cssOutputLocation);
countCompleted++;
if (countCompleted === 2){
done();
}
});
fs.writeFile(sourceMapLocation, result.map.toString(), null, function(err){
if (err){
return console.error(err);
}
console.log("Wrote " + sourceMapLocation);
countCompleted++;
if (countCompleted === 2){
done();
}
});
}
});
}
function doBuildScss(done){
performSassBuild(done, {});
}
function doWatchScss(done){
const subP = spawn("sass", [
"./src/styles.scss",
"./dist/react-workflow-viz.min.css",
"--watch"
], { stdio: "inherit" });
subP.on("close", (code)=>{
done();
});
}
//gulp.task('build-publish', gulp.series(setProduction, doWebpack));
//gulp.task('watch', gulp.series(doWebpack, watch));
gulp.task('watch',
gulp.series(
setDevelopment,
doBuildScss,
doBuildESModules,
doWebpack,
doDemoWebpack,
gulp.parallel(
doWatchScss,
doWatchESModules,
watch,
watchDemo,
doRunLocalServer
)
)
);
gulp.task('build',
gulp.series(
setProduction,
doBuildESModules,
gulp.parallel(
doBuildScss,
gulp.series(
doWebpack,
doDemoWebpack
)
)
)
);
gulp.task('build-scss', doBuildScss);