Add a simple makefile to wrap all the commands

Author: hamishcoleman

Makefile

@@ -0,0 +1,30 @@
+#
+#
+#
+
+SKETCH := CameraWebServer.ino
+
+BOARD := esp32:esp32:esp32cam
+PACKAGE_URL := https://dl.espressif.com/dl/package_esp32_index.json
+
+BOARD_FILENAME_SLUG := $(subst :,.,$(BOARD))
+
+all: $(SKETCH).$(BOARD_FILENAME_SLUG).bin
+
+# I dont want to use curl|sh, but this is the documented install method ...
+ARDUINO_URL := https://raw.githubusercontent.com/arduino/arduino-cli/master/install.sh
+bin/arduino-cli: /usr/bin/curl
+	curl -fsSL $(ARDUINO_URL) | sh
+
+.PHONY: $(BOARD_FILENAME_SLUG)
+$(BOARD_FILENAME_SLUG): bin/arduino-cli
+	~/bin/arduino-cli config init --additional-urls $(PACKAGE_URL)
+	~/bin/arduino-cli core update-index
+	arduino-cli core install esp32:esp32
+
+build-deps:
+	sudo apt-get -y install curl
+	$(MAKE) $(BOARD_FILENAME_SLUG)
+
+%.ino.$(BOARD_FILENAME_SLUG).bin: %.ino
+	arduino-cli compile -b $(BOARD) $<