CI build for the library

Concept taken from T-vK/ESP32-BLE-Keyboard#358

Author: webmonkey

.github/workflows/build.yml

@@ -0,0 +1,22 @@
+name: ESP32 NimBLE Keyboard CI Build
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Set up Python and install PlatformIO
+        run: |
+          python3 -m pip install --upgrade platformio
+
+      - name: Build with PlatformIO
+        run: |
+          make test

.gitignore

@@ -0,0 +1 @@
+.pio

Makefile

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+test: ## verify that the library compiles
+	pio run --project-dir=./test/ci_build --target=clean
+	pio run --project-dir=./test/ci_build
+
+help:
+	@awk 'BEGIN {FS = ":.*##"; printf "\nUsage:\n  make \033[36m\033[0m\n"} /^[a-zA-Z_-]+:.*?##/ { printf "  \033[36m%-15s\033[0m %s\n", $$1, $$2 } /^##@/ { printf "\n\033[1m%s\033[0m\n", substr($$0, 5) } ' $(MAKEFILE_LIST)
+
+.PHONY: test help

test/ci_build/platformio.ini

@@ -0,0 +1,7 @@
+[env:esp32dev]
+platform = espressif32
+board = esp32dev
+framework = arduino
+lib_ldf_mode = deep+
+lib_extra_dirs = ../
+lib_deps = ESP32 BLE Keyboard

test/ci_build/src/main.cpp

@@ -0,0 +1,14 @@
+#include <Arduino.h>
+#include <BleKeyboard.h>
+
+BleKeyboard bleKeyboard("ESP32 Keyboard");
+
+void setup() {
+  bleKeyboard.begin();
+}
+
+void loop() {
+  if (bleKeyboard.isConnected()) {
+    bleKeyboard.print("Hello");
+  }
+}