# Package details
PACKAGE_NAME := pgmon
VERSION := 1.0

SCRIPT := src/$(PACKAGE_NAME).py

# Where packages are built
BUILD_DIR := build

# List of distros we support
SUPPORTED := ubuntu-20.04 \
             ubuntu-22.04 \
             ubuntu-24.04 \
	     debian-10 \
	     debian-11 \
	     rockylinux-8 \
	     rockylinux-9 \
	     oraclelinux-7

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

.PHONY: all clean tgz test install


# Build all packages
.PHONY: package-all
all: $(foreach distro_release, $(SUPPORTED), package-$(distro_release))


# Create a deb package
.PHONY: package-%
package-%: PARTS=$(subst -, ,$*)
package-%: DISTRO=$(word 1, $(PARTS))
package-%: RELEASE=$(word 2, $(PARTS))
package-%:
	mkdir -p $(BUILD_DIR)
	docker run --rm \
	    -v .:/src:ro \
	    -v ./$(BUILD_DIR):/output \
	    --user $(shell id -u):$(shell id -g) \
	    "$(DISTRO)-packager:$(RELEASE)"


# Create a tarball
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 up the build directory
clean:
	rm -rf $(BUILD_DIR)

# Run unit tests for the script
test:
	cd src ; python3 -m unittest

# Install the script at the specified base directory
install:
	# Set up directories
	mkdir -p $(DESTDIR)/etc/$(PACKAGE_NAME)
	mkdir -p ${DESTDIR}/etc/logrotate.d
	mkdir -p $(DESTDIR)/lib/systemd/system
	mkdir -p $(DESTDIR)/usr/local/bin
	mkdir -p $(DESTDIR)/usr/share/man/man1
	
	# 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 logrotate config
	cp logrotate/${PACKAGE_NAME}.logrotate ${DESTDIR}/etc/logrotate.d/${PACKAGE_NAME}


# Run all of the install tests
.PHONY: install-tests debian-%-install-test rockylinux-%-install-test ubuntu-%-install-test
install-tests: $(foreach distro_release, $(SUPPORTED), $(distro_release)-install-test)


# Run a Debian install test
debian-%-install-test:
	docker run --rm \
	     -v ./$(BUILD_DIR):/output \
	     debian:$* \
	     bash -c 'apt-get update && apt-get install -y /output/$(PACKAGE_NAME)-$(VERSION)-debian-$*.deb'

# Run a RedHat install test
rockylinux-%-install-test:
	docker run --rm \
	     -v ./$(BUILD_DIR):/output \
	     rockylinux:$* \
	     bash -c 'dnf makecache && dnf install -y /output/$(PACKAGE_NAME)-$(VERSION)-1.el$*.noarch.rpm'

# Run an Ubuntu install test
ubuntu-%-install-test:
	docker run --rm \
	     -v ./$(BUILD_DIR):/output \
	     ubuntu:$* \
	     bash -c 'apt-get update && apt-get install -y /output/$(PACKAGE_NAME)-$(VERSION)-ubuntu-$*.deb'

# Run an OracleLinux install test (this is for EL7 since CentOS7 images no longer exist)
oraclelinux-%-install-test:
	docker run --rm \
	     -v ./$(BUILD_DIR):/output \
	     oraclelinux:7 \
	     bash -c 'yum makecache && yum install -y /output/$(PACKAGE_NAME)-$(VERSION)-1.el7.noarch.rpm'

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

# Target to build packaging images for all supported releases
.PHONY: all-package-images
all-package-images: $(foreach distro_release, $(SUPPORTED), package-image-$(distro_release))

# Generic target for creating images that actually build the packages
# The % is expected to be: distro-release
# The build/.package-image-% target actually does the work and touches a state file to avoid excessive building
.PHONY: package-image-%
package-image-%: PARTS=$(subst -, ,$*)
package-image-%: DISTRO=$(word 1, $(PARTS))
package-image-%: RELEASE=$(word 2, $(PARTS))
package-image-%:
	docker build -t "$(DISTRO)-packager:$(RELEASE)" --build-arg "RELEASE=$(RELEASE)" --build-arg "DISTRO=$(DISTRO)" -f docker/Dockerfile-$(DISTRO) .


##
# 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: actually-package-debian-% actually-package-rockylinux-% actually-package-ubuntu-% actually-package-oraclelinux-%

# Debian package creation
actually-package-debian-%:
	$(MAKE) install DESTDIR=/output/debian-$*
	cp -r --preserve=mode DEBIAN /output/debian-$*/
	dpkg-deb -Zgzip --build /output/debian-$* "/output/$(PACKAGE_NAME)-$(VERSION)-debian-$*.deb"

# RedHat package creation
actually-package-rockylinux-%:
	mkdir -p /output/rockylinux-$*/{BUILD,RPMS,SOURCES,SPECS,SRPMS}
	cp RPM/$(PACKAGE_NAME).spec /output/rockylinux-$*/SPECS/
	rpmbuild --define '_topdir /output/rockylinux-$*' \
	         --define 'version $(VERSION)' \
	         -bb /output/rockylinux-$*/SPECS/$(PACKAGE_NAME).spec
	cp /output/rockylinux-$*/RPMS/noarch/$(PACKAGE_NAME)-$(VERSION)-1.el$*.noarch.rpm /output/

# Ubuntu package creation
actually-package-ubuntu-%:
	$(MAKE) install DESTDIR=/output/ubuntu-$*
	cp -r --preserve=mode DEBIAN /output/ubuntu-$*/
	dpkg-deb -Zgzip --build /output/ubuntu-$* "/output/$(PACKAGE_NAME)-$(VERSION)-ubuntu-$*.deb"

# OracleLinux package creation
actually-package-oraclelinux-%:
	mkdir -p /output/oraclelinux-$*/{BUILD,RPMS,SOURCES,SPECS,SRPMS}
	cp RPM/$(PACKAGE_NAME)-el7.spec /output/oraclelinux-$*/SPECS/$(PACKAGE_NAME).spec
	rpmbuild --define '_topdir /output/oraclelinux-$*' \
	         --define 'version $(VERSION)' \
	         -bb /output/oraclelinux-$*/SPECS/$(PACKAGE_NAME).spec
	cp /output/oraclelinux-$*/RPMS/noarch/$(PACKAGE_NAME)-$(VERSION)-1.el$*.noarch.rpm /output/