Boot-Java for Atom

atom-extensions/atom-boot-java/script.js

@@ -0,0 +1,34 @@
+const fs = require('fs');
+const path = require('path');
+const download = require('download');
+const PROPERTIES = require('./properties.json');
+
+let fileExists = function(path) {
+    return new Promise((resolve, reject) => {
+            fs.access(path, fs.R_OK, error => {
+            resolve(!error || error.code !== 'ENOENT');
+        })
+    });
+};
+
+const serverDownloadUrl = PROPERTIES.jarUrl;
+
+const serverHome = path.join(__dirname, 'server');
+
+const localFileName = path.join(serverHome, 'boot-java-language-server.jar');
+
+fileExists(localFileName).then(exists => {
+   if (!exists) {
+       console.log(`Downloading ${serverDownloadUrl} to ${localFileName}`);
+       fileExists(serverHome)
+           .then(doesExist => { if (!doesExist) fs.mkdir(serverHome) })
+           .then(() => download(serverDownloadUrl))
+           .then(data => fs.writeFileSync(localFileName, data))
+           .then(() => fileExists(localFileName))
+           .then(doesExist => { if (!doesExist) throw Error(`Failed to install the ${this.getServerName()} language server`) })
+           .then(() => console.log(`Successfully downloaded ${serverDownloadUrl}`));
+   }
+});
+
+
+