PACKAGE_NAME := pgmon
VERSION := 1.0

BUILD_DIR := build

DEB_IMAGE := debian-package-builder
RPM_IMAGE := rpm-package-builder

SCRIPT := src/$(PACKAGE_NAME).py

INSTALL_TEST_DEBIAN := 11
INSTALL_TEST_REDHAT := 9
INSTALL_TEST_UBUNTU := 24.04

##
# These targets are the main ones to use for most things.
##

.PHONY: all clean deb rpm test install install-tests

all: deb rpm

deb:
	mkdir -p $(BUILD_DIR)/deb
	docker run --rm \
	    -v .:/src:ro \
	    -v ./$(BUILD_DIR)/deb:/output \
	    --user $(shell id -u):$(shell id -g) \
	    $(DEB_IMAGE)

rpm:
	mkdir -p $(BUILD_DIR)/rpm
	docker run --rm \
	    -v .:/src:ro \
	    -v ./$(BUILD_DIR)/rpm:/output \
	    --user $(shell id -u):$(shell id -g) \
	    $(RPM_IMAGE)

tgz:
	rm -rf $(BUILD_DIR)/tgz/root
	mkdir -p $(BUILD_DIR)/tgz/root
	$(MAKE) install DESTDIR=$(BUILD_DIR)/tgz/root
	tar -cz -f $(BUILD_DIR)/tgz/$(PACKAGE_NAME)-$(VERSION).tgz -C $(BUILD_DIR)/tgz/root .

clean:
	rm -rf $(BUILD_DIR)

test:
	cd src ; python3 -m unittest

install:
	# Set up directories
	mkdir -p $(DESTDIR)/usr/local/bin
	mkdir -p $(DESTDIR)/usr/share/man/man1
	mkdir -p $(DESTDIR)/etc/$(PACKAGE_NAME)
	mkdir -p $(DESTDIR)/lib/systemd/system
	
	# Install script
	cp $(SCRIPT) $(DESTDIR)/usr/local/bin/$(PACKAGE_NAME)
	chmod 755 $(DESTDIR)/usr/local/bin/$(PACKAGE_NAME)
	
	# Install manpage
	cp manpages/* $(DESTDIR)/usr/share/man/man1/
	gzip -f -9 $(DESTDIR)/usr/share/man/man1/$(PACKAGE_NAME).1
	
	# Install sample config
	cp sample-config/* $(DESTDIR)/etc/$(PACKAGE_NAME)/
	
	# Install systemd unit files
	cp systemd/* $(DESTDIR)/lib/systemd/system/

install-tests: debian-install-test rocky-install-test ubuntu-install-test

debian-install-test:
	docker run --rm \
	     -v ./$(BUILD_DIR)/deb:/output \
	     debian:$(INSTALL_TEST_DEBIAN) \
	     bash -c 'apt-get update && apt-get install -y /output/$(PACKAGE_NAME)_$(VERSION).deb'

rocky-install-test:
	docker run --rm \
	     -v ./$(BUILD_DIR)/rpm:/output \
	     rockylinux:$(INSTALL_TEST_REDHAT) \
	     bash -c 'yum makecache && yum install -y /output/$(PACKAGE_NAME)-$(VERSION)-1.el$(INSTALL_TEST_REDHAT).noarch.rpm'

ubuntu-install-test:
	docker run --rm \
	     -v ./$(BUILD_DIR)/deb:/output \
	     ubuntu:$(INSTALL_TEST_UBUNTU) \
	     bash -c 'apt-get update && apt-get install -y /output/$(PACKAGE_NAME)_$(VERSION).deb'


##
# Inside-container targets
#
# These targets are used inside containers.  They expect the repo to be mounted
# at /src and the package manager specific build directory to be mounted at
# /output.
##

.PHONY: package-deb package-rpm

# Debian package creation logic
package-deb:
	$(MAKE) install DESTDIR=/output
	cp -r --preserve=mode DEBIAN /output/
	dpkg-deb -Zgzip --build /output /output/$(PACKAGE_NAME)_$(VERSION).deb

# RPM package creation logic
package-rpm:
	mkdir -p /output/{BUILD,RPMS,SOURCES,SPECS,SRPMS}
	cp RPM/$(PACKAGE_NAME).spec /output/SPECS/
	rpmbuild --define '_topdir /output' \
	         --define 'version $(VERSION)' \
	         -bb /output/SPECS/$(PACKAGE_NAME).spec
	cp /output/RPMS/noarch/*.rpm /output/


##
# Container targets
#
# These targets build the docker images used to create packages
##

.PHONY: docker deb-package-image rpm-package-image

docker: deb-package-image rpm-package-image

deb-package-image: Dockerfile.deb
	docker build -t $(DEB_IMAGE) -f Dockerfile.deb .

rpm-package-image: Dockerfile.rpm
	docker build -t $(RPM_IMAGE) -f Dockerfile.rpm .