Added download script for arduino-language-server

arduino-ide-extension/scripts/download-ls.js

@@ -0,0 +1,72 @@
+// @ts-check
+// The links to the downloads as of today (28.08.2019) are the following:
+// - https://downloads.arduino.cc/arduino-language-server/nightly/arduino-language-server_${SUFFIX}
+// - https://downloads.arduino.cc/arduino-language-server/clangd/clangd_${VERSION}_${SUFFIX}
+
+(() => {
+
+    const DEFAULT_ALS_VERSION = 'nightly';
+    const DEFAULT_CLANGD_VERSION = '8.0.1';
+
+    const os = require('os');
+    const path = require('path');
+    const shell = require('shelljs');
+    const downloader = require('./downloader');
+
+    const yargs = require('yargs')
+        .option('ls-version', {
+            alias: 'lv',
+            default: DEFAULT_ALS_VERSION,
+            choices: ['nightly'],
+            describe: `The version of the 'arduino-language-server' to download. Defaults to ${DEFAULT_ALS_VERSION}.`
+        })
+        .option('clangd-version', {
+            alias: 'cv',
+            default: DEFAULT_CLANGD_VERSION,
+            choices: ['8.0.1'],
+            describe: `The version of 'clangd' to download. Defaults to ${DEFAULT_CLANGD_VERSION}.`
+        })
+        .option('force-download', {
+            alias: 'fd',
+            default: false,
+            describe: `If set, this script force downloads the 'arduino-language-server' even if it already exists on the file system.`
+        })
+        .version(false).parse();
+
+    const alsVersion = yargs['ls-version'];
+    const clangdVersion = yargs['clangd-version']
+    const force = yargs['force-download'];
+    const { platform, arch } = process;
+
+    const build = path.join(__dirname, '..', 'build');
+    const als = path.join(build, `arduino-language-server${os.platform() === 'win32' ? '.exe' : ''}`);
+    const clangd = path.join(build, `clangd${os.platform() === 'win32' ? '.exe' : ''}`);
+
+    let alsSuffix, clangdSuffix;
+    switch (platform) {
+        case 'darwin':
+            alsSuffix = 'Darwin_amd64.zip';
+            clangdSuffix = 'macos.zip';
+            break;
+        case 'win32':
+            alsSuffix = 'Windows_NT_amd64.zip';
+            clangdSuffix = 'windows.zip';
+            break;
+        case 'linux':
+            alsSuffix = 'Linux_amd64.zip';
+            break;
+    }
+    if (!alsSuffix) {
+        shell.echo(`The arduino-language-server is not available for ${platform} ${arch}.`);
+        shell.exit(1);
+    }
+
+    const alsUrl = `https://downloads.arduino.cc/arduino-language-server/${alsVersion === 'nightly' ? 'nightly/arduino-language-server' : 'arduino-language-server_' + alsVersion}_${alsSuffix}`;
+    downloader.download(alsUrl, als, 'arduino-language-server', force);
+
+    if (clangdSuffix) {
+        const clangdUrl = `https://downloads.arduino.cc/arduino-language-server/clangd/clangd_${clangdVersion}_${clangdSuffix}`;
+        downloader.download(clangdUrl, clangd, 'clangd', force);
+    }
+
+})();