install-build-deps.sh has --dont-install and --platform options.

All docker files do not call isntall-build-deps.sh. Instead, cmake passes
REQUIREDPKGS to Dockerfiles, which is derived from the output of
./scripts/install-build-deps.sh --dont-install --platform PLATFORM.
This change enables caching package installaion during docker build.

CMakeLists.txt

@@ -155,34 +155,39 @@ enable_testing()
 # Custom targets to build and test mscp in docker containers.
 # foreach(IN ZIP_LISTS) (cmake >= 3.17) can shorten the following lists.
 # However, ubuntu 20.04 has cmake 3.16.3. So this is a roundabout trick.
-list(APPEND DIST_NAMES	ubuntu	ubuntu	rocky	rocky	almalinux	alpine)
+list(APPEND DIST_IDS	ubuntu	ubuntu	rocky	rocky	almalinux	alpine)
 list(APPEND DIST_VERS	20.04	22.04	8.9	9.3	9.3		3.19)
 list(APPEND DIST_PKGS	deb	deb	rpm	rpm	rpm		static)
 
-list(LENGTH DIST_NAMES _DIST_LISTLEN)
+list(LENGTH DIST_IDS _DIST_LISTLEN)
 math(EXPR DIST_LISTLEN "${_DIST_LISTLEN} - 1")
 
 foreach(x RANGE ${DIST_LISTLEN})
-	list(GET DIST_NAMES	${x} DIST_NAME)
+	list(GET DIST_IDS	${x} DIST_ID)
 	list(GET DIST_VERS	${x} DIST_VER)
 	list(GET DIST_PKGS	${x} DIST_PKG)
 
-	set(DOCKER_IMAGE mscp-${DIST_NAME}:${DIST_VER})
-	set(DOCKER_INDEX ${DIST_NAME}-${DIST_VER})
-	set(PKG_FILE_NAME
-		mscp_${DIST_NAME}-${DIST_VER}-${ARCH}.${DIST_PKG})
+	set(DOCKER_IMAGE mscp-${DIST_ID}:${DIST_VER})
+	set(DOCKER_INDEX ${DIST_ID}-${DIST_VER})
+	execute_process(
+		COMMAND ${CMAKE_SOURCE_DIR}/scripts/install-build-deps.sh
+		--dont-install --platform Linux-${DIST_ID}
+		OUTPUT_VARIABLE REQUIREDPKGS
+		OUTPUT_STRIP_TRAILING_WHITESPACE)
 
 	add_custom_target(docker-build-${DOCKER_INDEX}
 		COMMENT "Build mscp in ${DOCKER_IMAGE} container"
 		WORKING_DIRECTORY ${mscp_SOURCE_DIR}
 		COMMAND
-		docker build -t ${DOCKER_IMAGE} -f Dockerfile/${DOCKER_INDEX}.Dockerfile .)
+		docker build --build-arg REQUIREDPKGS=${REQUIREDPKGS}
+		-t ${DOCKER_IMAGE} -f Dockerfile/${DOCKER_INDEX}.Dockerfile .)
 
 	add_custom_target(docker-build-${DOCKER_INDEX}-no-cache
 		COMMENT "Build mscp in ${DOCKER_IMAGE} container"
 		WORKING_DIRECTORY ${mscp_SOURCE_DIR}
 		COMMAND
-		docker build --no-cache -t ${DOCKER_IMAGE} -f Dockerfile/${DOCKER_INDEX}.Dockerfile .)
+		docker build --build-arg REQUIREDPKGS=${REQUIREDPKGS} --no-cache
+		-t ${DOCKER_IMAGE} -f Dockerfile/${DOCKER_INDEX}.Dockerfile .)
 
 	add_custom_target(docker-test-${DOCKER_INDEX}
 		COMMENT "Test mscp in ${DOCKER_IMAGE} container"
@@ -204,12 +209,19 @@ add_custom_target(docker-test-all		DEPENDS ${DOCKER_TESTS})
 ### debuild-related definitions
 
 set(DEBBUILDCONTAINER mscp-build-deb)
+execute_process(
+	COMMAND ${CMAKE_SOURCE_DIR}/scripts/install-build-deps.sh
+	--dont-install --platform Linux-ubuntu
+	OUTPUT_VARIABLE REQUIREDPKGS_DEB
+	OUTPUT_STRIP_TRAILING_WHITESPACE)
+
 add_custom_target(build-deb
 	COMMENT "build mscp deb files inside a container"
 	WORKING_DIRECTORY ${mscp_SOURCE_DIR}
 	BYPRODUCTS ${CMAKE_BINARY_DIR}/debbuild
 	COMMAND
-	docker build -t ${DEBBUILDCONTAINER} -f Dockerfile/build-deb.Dockerfile .
+	docker build --build-arg REQUIREDPKGS=${REQUIREDPKGS_DEB}
+	-t ${DEBBUILDCONTAINER} -f Dockerfile/build-deb.Dockerfile .
 	COMMAND
 	docker run --rm -v ${CMAKE_BINARY_DIR}:/out ${DEBBUILDCONTAINER}
 	cp -r /debbuild /out/)
@@ -222,20 +234,28 @@ configure_file(
 	${mscp_SOURCE_DIR}/rpm/mscp.spec.in
 	${mscp_SOURCE_DIR}/rpm/mscp.spec
 	@ONLY)
-configure_file(
-	${mscp_SOURCE_DIR}/Dockerfile/build-srpm.Dockerfile.in
-	${mscp_SOURCE_DIR}/Dockerfile/build-srpm.Dockerfile
-	@ONLY)
+#configure_file(
+#	${mscp_SOURCE_DIR}/Dockerfile/build-srpm.Dockerfile.in
+#	${mscp_SOURCE_DIR}/Dockerfile/build-srpm.Dockerfile
+#	@ONLY)
 
 # Custom target to build mscp as a src.rpm in docker.
 set(RPMBUILDCONTAINER mscp-build-srpm)
 set(SRPMFILE mscp-${MSCP_VERSION}-1.el9.src.rpm)
+execute_process(
+	COMMAND ${CMAKE_SOURCE_DIR}/scripts/install-build-deps.sh
+	--dont-install --platform Linux-rocky
+	OUTPUT_VARIABLE REQUIREDPKGS_RPM
+	OUTPUT_STRIP_TRAILING_WHITESPACE)
+
 add_custom_target(build-srpm
 	COMMENT "Build mscp src.rpm inside a container"
 	WORKING_DIRECTORY ${mscp_SOURCE_DIR}
 	BYPRODUCTS ${CMAKE_BINARY_DIR}/${SRPMFILE}
 	COMMAND
-	docker build -t ${RPMBUILDCONTAINER} -f Dockerfile/build-srpm.Dockerfile .
+	docker build --build-arg REQUIREDPKGS=${REQUIREDPKGS_RPM}
+	--build-arg MSCP_VERSION=${MSCP_VERSION}
+	-t ${RPMBUILDCONTAINER} -f Dockerfile/build-srpm.Dockerfile .
 	COMMAND
 	docker run --rm -v ${CMAKE_BINARY_DIR}:/out ${RPMBUILDCONTAINER}
 	cp /root/rpmbuild/SRPMS/${SRPMFILE} /out/)

Dockerfile/.gitignore

@@ -1,3 +0,0 @@
-
-# generated by cmake
-build-srpm.Dockerfile

Dockerfile/README.md

@@ -1,19 +1,7 @@
 
 Dockerfiles for building and testing mscp.
 
-Build container:
-
-```
-docker build -t mscp-DIST:VER -f docker/DIST-VER.Dockerfile .
-```
-
-Run test:
-
-```
-docker run --init --rm mscp-DST:VER /mscp/scripts/test-in-container.sh
-```
-
-Custom targets to build and test mscp in the containers are provided
-via `cmake`.  See `make docker-*` targets. `make docker-build-all`
-builds all container images, and `make docker-test-all` runs the test
-in all container images.
+cmake provides custom targets to build and test mscp in the containers
+See `make docker-*` targets. `make docker-build-all` builds all
+container images, and `make docker-test-all` runs the test in all
+container images.

Dockerfile/almalinux-9.3.Dockerfile

@@ -1,8 +1,11 @@
 FROM almalinux:9.3
 
+ARG REQUIREDPKGS
+
 # install pytest, sshd for test, and rpm-build
 RUN set -ex && yum -y install \
-	python3 python3-pip python3-devel openssh openssh-server openssh-clients rpm-build
+	${REQUIREDPKGS} python3 python3-pip python3-devel \
+	openssh openssh-server openssh-clients rpm-build
 
 RUN python3 -m pip install pytest
 
@@ -28,9 +31,6 @@ ARG mscpdir="/mscp"
 
 COPY . ${mscpdir}
 
-# install build dependency
-RUN ${mscpdir}/scripts/install-build-deps.sh
-
 # build
 RUN cd ${mscpdir}			\
         && rm -rf build			\

Dockerfile/alpine-3.19.Dockerfile

@@ -1,10 +1,15 @@
 FROM alpine:3.19
 
+# do not use REQUIREDPKGS build argument because
+# this Dockerfile compiles mscp with conan,so we do not need
+# libssl-dev and zlib-dev
+
 # Build mscp with conan to create single binary mscp
 
 RUN apk add --no-cache \
-	gcc make cmake python3 py3-pip perl linux-headers libc-dev	\
-	openssh bash python3-dev py3-pytest g++
+	gcc make cmake libc-dev \
+	linux-headers openssh bash perl \
+	python3 py3-pip python3-dev py3-pytest g++
 
 RUN pip3 install --break-system-packages conan
 

Dockerfile/build-deb.Dockerfile

@@ -1,16 +1,16 @@
 FROM ubuntu:22.04
 
+ARG REQUIREDPKGS
+
 ARG DEBIAN_FRONTEND=noninteractive
 RUN set -ex && apt-get update && apt-get install -y --no-install-recommends \
-	ca-certificates build-essential devscripts debhelper gcc make cmake
+	${REQUIREDPKGS} ca-certificates \
+	build-essential devscripts debhelper gcc make cmake
 
 ARG mscpdir="/debbuild/mscp"
 
 COPY . ${mscpdir}
 
-# install build dependency
-RUN ${mscpdir}/scripts/install-build-deps.sh
-
 # build
 RUN cd ${mscpdir} 	\
 	&& debuild -us -uc -S \

Dockerfile/build-srpm.Dockerfile

@@ -1,16 +1,16 @@
 FROM rockylinux:9
 
-# install pytest, sshd for test, and rpm-build
-RUN set -ex && yum -y install rpm-build rpmdevtools
+ARG REQUIREDPKGS
+ARG MSCP_VERSION
 
-ARG mscpdir="/mscp-@MSCP_VERSION@"
-ARG mscptgz="mscp-@MSCP_VERSION@.tar.gz"
+# install pytest, sshd for test, and rpm-build
+RUN set -ex && yum -y install ${REQUIREDPKGS} rpm-build rpmdevtools
+
+ARG mscpdir="/mscp-${MSCP_VERSION}"
+ARG mscptgz="mscp-${MSCP_VERSION}.tar.gz"
 
 COPY . ${mscpdir}
 
-# install build dependency
-RUN ${mscpdir}/scripts/install-build-deps.sh
-
 # prepare rpmbuild
 RUN rpmdev-setuptree \
 	&& rm -rf ${mscpdir}/build	\

Dockerfile/rocky-8.9.Dockerfile

@@ -1,8 +1,12 @@
 FROM rockylinux:8.9
 
+ARG REQUIREDPKGS
+
 # install pytest, sshd for test, and rpm-build
 RUN set -ex && yum -y install \
-	python3 python3-pip python3-devel openssh openssh-server openssh-clients rpm-build
+	${REQUIREDPKGS}	\
+	python3 python3-pip python3-devel \
+	openssh openssh-server openssh-clients rpm-build
 
 RUN python3 -m pip install pytest
 
@@ -29,9 +33,6 @@ ARG mscpdir="/mscp"
 
 COPY . ${mscpdir}
 
-# install build dependency
-RUN ${mscpdir}/scripts/install-build-deps.sh
-
 # build
 RUN cd ${mscpdir}			\
         && rm -rf build			\

Dockerfile/rocky-9.3.Dockerfile

@@ -1,8 +1,12 @@
 FROM rockylinux:9.3
 
+ARG REQUIREDPKGS
+
 # install pytest, sshd for test, and rpm-build
 RUN set -ex && yum -y install \
-	python3 python3-pip python3-devel openssh openssh-server openssh-clients rpm-build
+	${REQUIREDPKGS}	\
+	python3 python3-pip python3-devel \
+	openssh openssh-server openssh-clients rpm-build
 
 RUN python3 -m pip install pytest
 
@@ -28,9 +32,6 @@ ARG mscpdir="/mscp"
 
 COPY . ${mscpdir}
 
-# install build dependency
-RUN ${mscpdir}/scripts/install-build-deps.sh
-
 # build
 RUN cd ${mscpdir}			\
         && rm -rf build			\

Dockerfile/ubuntu-20.04.Dockerfile

@@ -1,16 +1,13 @@
 FROM ubuntu:20.04
 
+ARG REQUIREDPKGS
+
 ARG DEBIAN_FRONTEND=noninteractive
 RUN set -ex && apt-get update && apt-get install -y --no-install-recommends \
-	ca-certificates
-
-# install pytest, and sshd for test
-RUN apt-get install -y --no-install-recommends  \
-        python3 python3-pip python3-dev openssh-server
+	${REQUIREDPKGS} ca-certificates python3 python3-pip python3-dev openssh-server
 
 RUN python3 -m pip install pytest
 
-
 # preparation for sshd
 RUN mkdir /var/run/sshd        \
 	&& ssh-keygen -A	\
@@ -31,10 +28,6 @@ ARG mscpdir="/mscp"
 
 COPY . ${mscpdir}
 
-# install build dependency
-RUN ${mscpdir}/scripts/install-build-deps.sh
-
-
 # build
 RUN cd ${mscpdir}			\
 	&& rm -rf build			\

Dockerfile/ubuntu-22.04.Dockerfile

@@ -1,16 +1,13 @@
 FROM ubuntu:22.04
 
+ARG REQUIREDPKGS
+
 ARG DEBIAN_FRONTEND=noninteractive
 RUN set -ex && apt-get update && apt-get install -y --no-install-recommends \
-	ca-certificates
-
-# install pytest, and sshd for test
-RUN apt-get install -y --no-install-recommends  \
-        python3 python3-pip python3-dev openssh-server
+	${REQUIREDPKGS} ca-certificates python3 python3-pip python3-dev openssh-server
 
 RUN python3 -m pip install pytest
 
-
 # preparation for sshd
 RUN mkdir /var/run/sshd        \
 	&& ssh-keygen -A	\
@@ -31,10 +28,6 @@ ARG mscpdir="/mscp"
 
 COPY . ${mscpdir}
 
-# install build dependency
-RUN ${mscpdir}/scripts/install-build-deps.sh
-
-
 # build
 RUN cd ${mscpdir}			\
 	&& rm -rf build			\

scripts/install-build-deps.sh

@@ -3,34 +3,71 @@
 # Install build dpenedencies.
 
 set -e
-set -u
+#set -u
+
+function print_help() {
+	echo "$0 [options]"
+	echo "    --dont-install         Print required packages."
+	echo "    --platform [PLATFORM]  PLATFORM is Kernel-ID, e.g., Linux-ubuntu."
+	echo "                           Automatically detected if not specified."
+}
 
 platform=$(uname -s)
+doinstall=1
 
 if [ -e /etc/os-release ]; then
 	source /etc/os-release
 	platform=${platform}-${ID}
 fi
 
-set -x
+while getopts h-: opt; do
+        optarg="${!OPTIND}"
+        [[ "$opt" = - ]] && opt="-$OPTARG"
+	case "-${opt}" in
+		--dont-install)
+			doinstall=0
+			;;
+		--platform)
+			platform=$optarg
+			shift
+			;;
+		-h)
+			print_help
+			exit 0
+			;;
+		*)
+			print_help
+			exit 1
+			;;
+	esac
+done
 
 case $platform in
 	Darwin)
-		brew install openssl@1.1
+		cmd="brew install"
+		pkgs="openssl@1.1"
 		;;
 	Linux-ubuntu*)
-		apt-get install --no-install-recommends -y \
-			gcc make cmake zlib1g-dev libssl-dev libkrb5-dev
+		cmd="apt-get install --no-install-recommends -y"
+		pkgs="gcc make cmake zlib1g-dev libssl-dev libkrb5-dev"
 		;;
 	Linux-centos* | Linux-rhel* | Linux-rocky* | Linux-almalinux)
-		yum install -y \
-			gcc make cmake zlib-devel openssl-devel rpm-build
+		cmd="yum install -y"
+		pkgs="gcc make cmake zlib-devel openssl-devel rpm-build"
 		;;
 	FreeBSD-freebsd)
-		pkg install cmake
+		cmd="pkg install"
+		pkgs="cmake"
 		;;
 	*)
 		echo "unsupported platform: $platform"
 		exit 1
 		;;
 esac
+
+if [ $doinstall -gt 0 ]; then
+	echo do "$cmd $pkgs"
+	$cmd $pkgs
+else
+	echo $pkgs
+fi