Added language contribution for ino files

arduino-ide-extension/src/node/language/arduino-language-server-contribution.ts

@@ -0,0 +1,48 @@
+import * as which from 'which';
+import * as os from 'os';
+import { join, delimiter } from 'path';
+import { injectable } from 'inversify';
+import { BaseLanguageServerContribution, IConnection } from '@theia/languages/lib/node';
+
+@injectable()
+export class ArduinoLanguageServerContribution extends BaseLanguageServerContribution {
+
+    readonly description = {
+        id: 'ino',
+        name: 'Arduino',
+        documentSelector: ['ino'],
+        fileEvents: ['**/*.ino']
+    }
+
+    get id() {
+        return this.description.id;
+    }
+
+    get name() {
+        return this.description.name;
+    }
+
+    async start(clientConnection: IConnection): Promise<void> {
+        const clangd = await this.resolveExecutable('clangd')
+        const languageServer = await this.resolveExecutable('arduino-language-server')
+        // Add '-log' argument to enable logging to files
+        const args: string[] = ['-clangd', clangd]
+        console.log(`Starting language server ${languageServer} ${args.join(' ')}`)
+        const serverConnection = await this.createProcessStreamConnectionAsync(languageServer, args)
+        this.forward(clientConnection, serverConnection)
+    }
+
+    protected resolveExecutable(name: string): Promise<string> {
+        return new Promise<string>((resolve, reject) => {
+            const path = `${process.env.PATH}${delimiter}${join(__dirname, '..', '..', '..', 'build')}`;
+            const suffix = os.platform() === 'win32' ? '.exe' : '';
+            which(name + suffix, { path }, (err, execPath) => {
+                if (err) {
+                    reject(err);
+                } else {
+                    resolve(execPath);
+                }
+            });
+        });
+    }
+}