refactor (Makefile):

- chmod +x
- shebang
- default goal is now the help target
- mark targets as phony (avoid filename collisions)
- error handling for install target
- raise issue in todo for deprecated shellcheck call
- help comments
- help target (`make` / `make help`)
- exclude requirements.txt (generated by Makefile)

Author: pythoninthegrass

Diff for: .gitignore

@@ -1,3 +1,6 @@
+# ETC
+requirements.txt
+
 # Byte-compiled / optimized / DLL files
 __pycache__/
 *.py[cod]

Diff for: Makefile

@@ -1,20 +1,53 @@
+#!/usr/bin/make -f
+
+.DEFAULT_GOAL := help
+
+GREEN := $(shell tput -Txterm setaf 2)
+YELLOW := $(shell tput -Txterm setaf 3)
+WHITE := $(shell tput -Txterm setaf 7)
+CYAN := $(shell tput -Txterm setaf 6)
+RESET := $(shell tput -Txterm sgr0)
+
+.PHONY: all
+all: i install l lint r requirements f format t test ## run all targets
+
 i: format install
-install: format
-	cp lima-plugin ~/Library/Application\ Support/xbar/plugins/lima-plugin.10s
+install: format ## install the plugin
+    @if logname >/dev/null 2>&1; then \
+        logged_in_user=$$(logname); \
+    else \
+        logged_in_user=$$(whoami); \
+    fi; \
+    @if [ -d "$${logged_in_user}/Library/Application Support/xbar/plugins" ]; then \
+        mkdir -p "$${logged_in_user}/Library/Application Support/xbar/plugins"; \
+    fi; \
+    cp lima-plugin "$${logged_in_user}/Library/Application Support/xbar/plugins/lima-plugin.10s"
 
+# TODO: replace shellcheck with ruff or another linter (shellcheck doesn't work with python scripts)
+# * cf. commit: e6b3896
 l: lint
-lint:
+lint: ## lint the plugin
 	shellcheck lima-plugin
 
 r: requirements
-requirements:
+requirements: ## export the requirements.txt file
 	poetry export -f requirements.txt --output requirements.txt
 
 f: format
-format:
+format: ## format the plugin
 	poetry run black lima-plugin
 
 t: test
-test: format
+test: format ## test the plugin
 	poetry run ./lima-plugin
 
+help: ## show this help
+	@echo ''
+	@echo 'Usage:'
+	@echo '    ${YELLOW}make${RESET} ${GREEN}<target>${RESET}'
+	@echo ''
+	@echo 'Targets:'
+	@awk 'BEGIN {FS = ":.*?## "} { \
+		if (/^[a-zA-Z_-]+:.*?##.*$$/) {printf "    ${YELLOW}%-20s${GREEN}%s${RESET}\n", $$1, $$2} \
+		else if (/^## .*$$/) {printf "  ${CYAN}%s${RESET}\n", substr($$1,4)} \
+		}' $(MAKEFILE_LIST)