Added Makefile for building .deb and .rpm packages for installing git-redate

.gitignore

@@ -0,0 +1 @@
+/build

Makefile

@@ -0,0 +1,75 @@
+# Makefile for git-redate
+
+# Package name
+PACKAGE_NAME := git-redate
+
+# Package version
+PACKAGE_VERSION := 1.0.2
+
+# Author
+AUTHOR := Potato Labs
+
+# Build directory
+BUILD_DIR := build
+
+# Source directory
+SOURCE_DIR := .
+
+# Install directory
+INSTALL_DIR := /usr/local/bin
+
+# Build artifacts
+DEB_PACKAGE := $(PACKAGE_NAME)_$(PACKAGE_VERSION)_all.deb
+RPM_PACKAGE := $(PACKAGE_NAME)-$(PACKAGE_VERSION).noarch.rpm
+
+.PHONY: all clean package install uninstall
+
+all: package
+
+package:
+	# Detect system type
+	@if [ -x $$(command -v dpkg) ]; then \
+		echo "Building DEB package..."; \
+		mkdir -p $(BUILD_DIR)/deb/DEBIAN; \
+		echo "Package: $(PACKAGE_NAME)" > $(BUILD_DIR)/deb/DEBIAN/control; \
+		echo "Version: $(PACKAGE_VERSION)" >> $(BUILD_DIR)/deb/DEBIAN/control; \
+		echo "Architecture: all" >> $(BUILD_DIR)/deb/DEBIAN/control; \
+		echo "Maintainer: $(AUTHOR)" >> $(BUILD_DIR)/deb/DEBIAN/control; \
+		echo "Depends: bash, git" >> $(BUILD_DIR)/deb/DEBIAN/control; \
+		echo "Description: Change the dates of several git commits with a single command." >> $(BUILD_DIR)/deb/DEBIAN/control; \
+		mkdir -p $(BUILD_DIR)/deb/usr/bin; \
+		cp $(SOURCE_DIR)/$(PACKAGE_NAME) $(BUILD_DIR)/deb/usr/bin; \
+		chmod +x $(BUILD_DIR)/deb/usr/bin/$(PACKAGE_NAME); \
+		dpkg-deb --build $(BUILD_DIR)/deb $(BUILD_DIR)/$(DEB_PACKAGE); \
+	elif [ -x $$(command -v rpm) ]; then \
+		echo "Building RPM package..."; \
+		mkdir -p $(BUILD_DIR)/rpm/usr/bin; \
+		cp $(SOURCE_DIR)/$(PACKAGE_NAME) $(BUILD_DIR)/rpm/usr/bin; \
+		chmod +x $(BUILD_DIR)/rpm/usr/bin/$(PACKAGE_NAME); \
+		fpm -s dir -t rpm \
+			-n $(PACKAGE_NAME) \
+			-v $(PACKAGE_VERSION) \
+			--iteration 1 \
+			--maintainer "$(AUTHOR)" \
+			--depends bash \
+			--depends git \
+			--description "Change the dates of several git commits with a single command." \
+			-C $(BUILD_DIR)/rpm \
+			usr; \
+	else \
+		echo "Unsupported system type!"; \
+		exit 1; \
+	fi
+
+install:
+	# Install the script
+	cp $(SOURCE_DIR)/$(PACKAGE_NAME) $(INSTALL_DIR)/$(PACKAGE_NAME)
+	chmod +x $(INSTALL_DIR)/$(PACKAGE_NAME)
+
+uninstall:
+	# Uninstall the script
+	rm -f $(INSTALL_DIR)/$(PACKAGE_NAME)
+
+clean:
+	# Clean build artifacts
+	rm -rf $(BUILD_DIR)

README.md

@@ -9,7 +9,11 @@ Change the dates of several git commits with a single command.
 
 For homebrew users, you need to run `brew tap PotatoLabs/homebrew-git-redate` and then `brew install git-redate`.
 
-If you're not using homebrew, you can clone this repo and move the `git-redate` file into any folders in your $PATH. Restart your terminal afterwards and you're good to go!
+You can also create debian/rpm packages for installing by cloning this repo and running `make package` in the project directory.
+
+The `make install` command can be used to directly install the script in the current system and `make uninstall` can be used to reverse the install operation.
+
+If you want to do it manually you can move the `git-redate` file into any folders in your $PATH. Restart your terminal afterwards and you're good to go!
 
 For window's users, you may paste the file into `${INSTALLATION_PATH}\mingw64\libexec\git-core`. Assuming you used the default settings the installation path will be `C:\Program Files\Git`.