Improve systemd service + add a Makefile to install the project from source

Author: ShellCode33

Makefile

@@ -0,0 +1,26 @@
+INSTALL_PREFIX ?= /usr/local/bin
+
+.PHONY: all
+all: target/release/backlightd target/release/backlightctl
+
+target/release/backlightd: backlightd/Cargo.toml $(shell ls -1 backlightd/src/*.rs)
+	cargo test --frozen --bin backlightd
+	cargo build --frozen --release --bin backlightd
+
+target/release/backlightctl: backlightctl/Cargo.toml $(shell ls -1 backlightctl/src/*.rs)
+	cargo test --frozen --bin backlightctl
+	cargo build --frozen --release --bin backlightctl
+
+.PHONY: install
+install:
+	install -Dm 755 -t $(INSTALL_PREFIX) target/release/backlightd
+	install -Dm 755 -t $(INSTALL_PREFIX) target/release/backlightctl
+	install -Dm 755 -t /etc/systemd/system backlightd.service
+	sed -i 's+$$INSTALL_PREFIX+$(INSTALL_PREFIX)+g' /etc/systemd/system/backlightd.service
+	systemctl daemon-reload
+	systemctl enable backlightd
+	systemctl restart backlightd
+
+.PHONY: clean
+clean:
+	rm -rf target/release

backlightd.service

@@ -4,7 +4,7 @@ Description=A backlight daemon that allows you to manage the backlight of all ki
 [Service]
 Type=simple
 Restart=always
-ExecStart=/usr/bin/backlightd
+ExecStart=$INSTALL_PREFIX/backlightd
 ProtectSystem=strict
 ReadWritePaths=/var/cache /run
 ProtectHome=tmpfs