Add test, lint, and deps targets to Makefile

  - Add help target showing all available commands
  - Add test targets: test, test-quick, test-verbose
  - Add lint target for shellcheck static analysis
  - Add check target combining lint and test
  - Add deps target with cross-platform package manager support
    (apt, dnf, yum, pacman, zypper, apk, brew)

1 files changed, 55 insertions, 1 deletions

diff --git a/Makefile b/Makefile
index b09ce0b..1b407ad 100644
--- a/Makefile
+++ b/Makefile
@@ -1,9 +1,63 @@
 # rsyncshot - backup with bash, cron, rsync, and hard links
+
+.PHONY: all help install uninstall test test-quick test-verbose lint check clean deps
+
+all: help
+
+help:
+	@echo "Targets:"
+	@echo "  install       Install rsyncshot and configure cron"
+	@echo "  uninstall     Remove rsyncshot and config"
+	@echo "  test          Run full test suite"
+	@echo "  test-quick    Run quick tests (skip backup/cron)"
+	@echo "  test-verbose  Run tests with verbose output"
+	@echo "  lint          Run shellcheck on scripts"
+	@echo "  check         Run lint and full test suite"
+	@echo "  deps          Install dependencies"
+	@echo "  clean         Remove test artifacts"
+
 install:
 	sudo ./rsyncshot setup
-	@echo Installing rsyncshot complete.
 
 uninstall:
 	sudo rm -f /usr/local/bin/rsyncshot
 	sudo rm -rf /etc/rsyncshot
 
+test:
+	sudo ./tests/test_rsyncshot.sh
+
+test-quick:
+	sudo ./tests/test_rsyncshot.sh --quick
+
+test-verbose:
+	sudo ./tests/test_rsyncshot.sh --verbose
+
+lint:
+	shellcheck rsyncshot tests/*.sh tests/**/*.sh
+
+check: lint test
+
+deps:
+	@echo "Installing dependencies..."
+	@if [ "$$(uname)" = "Darwin" ]; then \
+		brew install rsync shellcheck util-linux openssh; \
+	elif command -v apt >/dev/null 2>&1; then \
+		sudo apt update && sudo apt install -y rsync util-linux shellcheck openssh-client cron; \
+	elif command -v dnf >/dev/null 2>&1; then \
+		sudo dnf install -y rsync util-linux ShellCheck openssh-clients cronie; \
+	elif command -v yum >/dev/null 2>&1; then \
+		sudo yum install -y rsync util-linux ShellCheck openssh-clients cronie; \
+	elif command -v pacman >/dev/null 2>&1; then \
+		sudo pacman -S --noconfirm rsync util-linux shellcheck openssh cronie; \
+	elif command -v zypper >/dev/null 2>&1; then \
+		sudo zypper install -y rsync util-linux ShellCheck openssh cronie; \
+	elif command -v apk >/dev/null 2>&1; then \
+		sudo apk add rsync util-linux shellcheck openssh dcron; \
+	else \
+		echo "Unknown package manager. Please install manually: rsync, flock, shellcheck, ssh, cron"; \
+		exit 1; \
+	fi
+	@echo "Dependencies installed."
+
+clean:
+	@echo "Nothing to clean"