Merge pull request #9 from ara-framework/develop

Add command for Nova Cluster

Author: marconi1992

README.md

@@ -65,6 +65,7 @@ Nova Proxy needs a configuration file:
     }
   ]
 }
+```
 
 Before to run the command we need to set the `HYPERNOVA_BATCH` variable using the Nova service endpoint.
 
@@ -75,4 +76,24 @@ export HYPERNOVA_BATCH=http://localhost:3000/batch
 The command uses a configuration file named `nova-proxy.json` in the folder where the command is running, otherwise you need to pass the `--config` parameter with a different path.
 ```
 ara run:proxy --config ./nova-proxy.json
+```
+
+### Run Nova Cluster
+
+Nova Cluster needs a configuration file in order to map the views with their nova servers.
+
+```json
+{
+  "Navbar": {
+    "server": "http://localhost:3031/batch"
+  },
+  "Home": {
+    "server": "http://localhost:3030/batch"
+  }
+}
+```
+
+The command uses a configuration file named `views.json` in the folder where the command is running, otherwise you need to pass the `--config` parameter with a different path.
+```
+ara run:cluster --config ./views.json
 ```

package.json

@@ -1,6 +1,6 @@
 {
   "name": "ara-cli",
-  "version": "1.0.0-alpha.1",
+  "version": "1.0.0-alpha.2",
   "description": "Ara Framework Command Line Interface",
   "keywords": [
     "ara",

src/index.js

@@ -7,6 +7,7 @@ const generateProject = require('./generators/project');
 const runLambda = require('./run/lambda');
 const serveAsset = require('./run/asset');
 const runProxy = require('./run/proxy');
+const runCluster = require('./run/cluster');
 
 cli.command('new:project <outDir>', 'New Project')
   .action(outDir => generateProject(outDir));
@@ -45,4 +46,10 @@ cli.command('run:proxy', 'Run Nova Proxy')
   .option('--config [config]', 'Configuration file')
   .action(({ config = './nova-proxy.json' }) => runProxy(config, path.join(__dirname, '../.ara')));
 
+cli.command('run:cluster', 'Run Nova Cluster')
+  .option('--config [config]', 'Configuration file')
+  .action(({ config = './views.json' }) => runCluster(config, path.join(__dirname, '../.ara')));
+
+cli.help();
+
 cli.parse();

src/run/cluster.js

@@ -0,0 +1,47 @@
+const os = require('os');
+const download = require('download');
+const fs = require('fs');
+const path = require('path');
+const ora = require('ora');
+const chalk = require('chalk');
+const execa = require('execa');
+
+module.exports = async (config, dest) => {
+  let url;
+  let fileName = 'nova-cluster';
+  const platform = os.platform();
+  if (platform === 'darwin') {
+    url = 'https://github.com/ara-framework/nova-cluster/releases/download/1.2.0/nova-cluster-darwin-amd64';
+  } else if (platform === 'win32') {
+    url = 'https://github.com/ara-framework/nova-cluster/releases/download/1.2.0/nova-cluster-windows-amd64.exe';
+    fileName = `${fileName}.exe`;
+  }
+
+  const executable = path.join(dest, fileName);
+
+  if (!fs.existsSync(executable)) {
+    if (url) {
+      const spinner = ora('Downloading nova-cluster').start();
+      try {
+        await download(url, dest, { filename: fileName });
+        fs.chmodSync(executable, 755);
+        spinner.succeed('Downloaded nova-cluster');
+      } catch (error) {
+        spinner.fail('Downloadind nova-cluster failed');
+        return null;
+      }
+    } else {
+      return console.error(chalk.red(`run:cluster command is not supported in "${platform}"`));
+    }
+  }
+
+  try {
+    process.env.CONFIG_FILE = process.env.CONFIG_FILE || config;
+
+    execa(executable).stdout.pipe(process.stdout);
+  } catch (error) {
+    console.error(chalk.red(error.stderr || 'Nova cluster failed when running'));
+  }
+
+  return null;
+};