base

.gitignore

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+# package management
+node_modules
+package-lock.json
+pnpm-lock.yaml
+yarn.lock
+
+# env
+.env
+
+# code
+!*.js

.vscode/launch.json

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+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "type": "node",
+            "request": "attach",
+            "name": "Attach to docker",
+            "restart": true,
+            "localRoot": ".",
+            "remoteRoot": "/opt/code",
+            "address": "localhost",
+            "port": 9229
+        }
+    ]
+}

Dockerfile

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+FROM node:19
+
+WORKDIR /opt/code
+
+COPY . /opt/code
+
+RUN cat .gitignore | xargs rm -rf && \
+    npm i && \
+	./install
+
+CMD [ "bash", "-c", "if [[ $APP_DEBUG == 'true' ]]; then npm run dev; else npm run prod; fi" ]

docker-compose.yml

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+version: '3'
+services:
+  server:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    volumes:
+      - './:/opt/code'
+    ports:
+      - '${APP_PORT}:${APP_PORT}'
+      - '9229:9229'
+    env_file: ./.env
+    environment:
+      APP_PORT: '${APP_PORT}'

gulpfile.js

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+const gulp = require('gulp');
+const spawn = require('child_process').spawn;
+
+/*function clean(cb) {
+    cb();
+}
+
+function js(cb) {
+    cb();
+}
+
+function css(cb) {
+    cb();
+}*/
+
+
+gulp.task("serve_dev", (cb) => {
+    console.log('Launching node...');
+    let node = spawn('node', ['--inspect=0.0.0.0', 'index.js'], {stdio: 'inherit'})
+
+    function files(cb) {
+        console.log('Restarting node...');
+        node.kill('SIGTERM');
+        node = spawn('node', ['--inspect=0.0.0.0', 'index.js'], {stdio: 'inherit'})
+        cb();
+    }
+
+    gulp.watch("**", { events: 'all' }, files);
+    cb();
+});
+
+gulp.task("serve", (cb) => {
+    console.log('Launching node...');
+    spawn('node', [, 'index.js'], {stdio: 'inherit'})
+    cb();
+});
+
+exports.default = function() {
+    gulp.watch("**", files); 
+}

helpers/index.js

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+module.exports = {
+    ViewLoader: require('./view_loader')
+}

helpers/view_loader.js

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+const Eta =     require('eta');
+const fs =      require('fs/promises');
+const glob =    require('glob');
+
+const cwd =     process.cwd();
+const layoutdir = cwd + '/view';
+
+let compiled = {};
+
+
+async function loadFile(file) {
+    if (compiled[file]) return compiled[file];
+    compiled[file] = Eta.compile(await fs.readFile(file, 'utf8'));
+
+    return compiled[file];
+}
+
+
+async function preload() {
+    glob(layoutdir + '/*.eta', (err, files) => {
+        files.filter(file => {return !file.startsWith('.');})
+            .forEach(file => {
+                loadFile(file);
+            });
+    });
+}
+
+
+async function load(name, data) {
+    return (await loadFile(cwd + '/view/' + name))(data, Eta.config);
+}
+
+
+module.exports = { load, loadFile, preload }

index.js

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+
+// do startup jobs
+require('./startup');
+
+const express = require('express');
+const app = express();
+
+const { APP_PORT } = process.env;
+
+app.use(require('./routes'));
+
+const server = app.listen(APP_PORT, () => {
+		console.log("Listening on port " + APP_PORT);
+});

install

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+#!/bin/bash
+
+PACKAGES="gulp-cli"
+
+if [[ $APP_DEBUG == 'true' ]]; then
+    npm i
+else
+    npm i --prod
+fi
+
+echo -e "Installing \033[32m$PACKAGES\033[0m"
+if [[ APP_DEBUG == 'true' ]]; then
+    npm i -g $PACKAGES
+else
+    npm i -g --prod $PACKAGES
+fi
+echo "All done."

nodemon.json

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+{
+    "watch": ["."],
+    "ext": "js, json, eta,"
+}

package.json

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+{
+  "name": "homepage.js",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1",
+    "dev": "gulp serve_dev",
+    "prod": "node index.js"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "dotenv": "^16.0.3",
+    "eta": "^2.0.0",
+    "express": "^4.18.2",
+    "glob": "^8.1.0"
+  },
+  "devDependencies": {
+    "gulp": "^4.0.2"
+  }
+}

routes/homepage.js

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+const Helpers = require('../helpers');
+
+async function handler(req, res) {
+    res.send(await Helpers.ViewLoader.load('welcome.eta'));
+}
+
+module.exports = (router) => {
+    router.get('/', handler);
+}

routes/index.js

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+const express = require('express');
+const router = express.Router();
+const glob = require('glob');
+
+glob(__dirname + "/**/*.js", {}, (er, data) => {
+    if (er) {
+        console.error(er);
+        process.exit(-1);
+    }
+    data
+        .filter(file => {
+            return !file.endsWith('index.js')
+        })
+        .forEach(file => {
+            require(file)(router);
+        });
+});
+
+module.exports = router;

startup.js

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+console.log('Executing startup jobs...');
+
+const fs = require('fs');
+
+const hrt = () => {
+    let hr = process.hrtime();
+    return hr[0] + hr[1] / 1000000;
+}
+
+async function startup() {
+    let t1 = hrt();
+
+    let dotpath = (process.env.APP_DEBUG == 'true') ? '.env.debug' : '.env.prod';
+    
+    if (!fs.existsSync(dotpath)) dotpath = '.env';
+
+    require('dotenv').config({
+        path: dotpath
+    });
+
+    await require('./helpers').ViewLoader.preload();
+    console.log('Views compiled in ' + (hrt() - t1) + ' ms');
+
+    console.log('Finished in ' + (hrt() - t1) + " ms");
+}
+
+startup();

view/welcome.eta

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+hi<br/>
+<%~ Date.now() %>