Fix user creating error. Ensuring user exists

Makefile

@@ -1,37 +1,39 @@
-PROJECT      := certificate-expire-check
-USER         := $(PROJECT)
-INSTALL_DIR  := /etc/$(PROJECT)
-CONF_DIR     := $(INSTALL_DIR)/conf
-SCRIPT       := $(INSTALL_DIR)/main.py
-CRON_SCHEDULE:= 0 0 */10 * *
+PROJECT       := certificate-expire-check
+USER          := $(PROJECT)
+INSTALL_DIR   := /etc/$(PROJECT)
+SCRIPT        := $(INSTALL_DIR)/main.py
+CRON_SCHEDULE := 0 0 */10 * *
 
 .PHONY: all user install cron clean
 
-all: user install cron
+all: install cron
 
 user:
-	@id -u $(USER) &>/dev/null || \
-	sudo useradd --system --no-create-home --shell /usr/sbin/nologin $(USER) && \
-	echo "User '$(USER)' has been created."
-	@echo "User '$(USER)' already exists - skip it."
+	@echo "==> Ensuring user '$(USER)' exists…"
+	@sudo getent passwd $(USER) > /dev/null 2>&1 || \
+	  ( sudo useradd --system --no-create-home --shell /usr/sbin/nologin $(USER) && \
+	    echo "User '$(USER)' created." )
+	@echo "User '$(USER)' ready."
 
-# Copy the project to /etc and set permissions
 install: user
-	sudo mkdir -p $(INSTALL_DIR)
-	sudo cp -r ./* $(INSTALL_DIR)
-	sudo chown -R $(USER):$(USER) $(INSTALL_DIR)
-	@echo "The project is installed in $(INSTALL_DIR) and permissions are assigned to user '$(USER)'."
+	@echo "==> Installing project to $(INSTALL_DIR)…"
+	@sudo mkdir -p $(INSTALL_DIR)
+	@sudo cp -r ./* $(INSTALL_DIR)
+	@sudo chown -R $(USER):$(USER) $(INSTALL_DIR)
+	@echo "Installed and chown → $(USER):$(USER)."
 
-# Add a cron job as a user
 cron: install
-	@CRON_LINE="$(CRON_SCHEDULE) /usr/bin/python3 $(SCRIPT) >> /var/log/$(PROJECT).log 2>&1"
-	# add CRON_LINE in user crontab if not exists
-	@sudo crontab -u $(USER) -l 2>/dev/null | grep -F "$$CRON_LINE" >/dev/null || \
-	( sudo crontab -u $(USER) -l 2>/dev/null; echo "$$CRON_LINE" ) | sudo crontab -u $(USER) -
-	@echo "Cron entry for user '$(USER)' is set: $$CRON_LINE"
+	@echo "==> Configuring cron job…"
+	@CRON_LINE="$(CRON_SCHEDULE) $(USER) /usr/bin/python3 $(SCRIPT) >> /var/log/$(PROJECT).log 2>&1"
+	@sudo crontab -u $(USER) -l 2>/dev/null | grep -F "$$CRON_LINE" \
+		|| ( sudo crontab -u $(USER) -l 2>/dev/null; echo "$$CRON_LINE" ) \
+		   | sudo crontab -u $(USER) -
+	@echo "Cron line for '$(USER)':"
+	@echo "  $$CRON_LINE"
 
 clean:
+	@echo "==> Cleaning up…"
 	-sudo crontab -u $(USER) -r
 	-sudo userdel $(USER)
 	-sudo rm -rf $(INSTALL_DIR)
-	@echo The cleanup is complete."
+	@echo "Cleanup done."