# Makefile for creating project tarball and installing the project
# to the various destination directories
#
# Lars Mueller <lm@openslx.com>, 2006, 2007
# Dirk von Suchodoletz <dvs@openslx.com>, 2006, 2007
# Michael Janczyk, 2006
# Sebastian Schmelzer <ssc@openslx.com>, 2009, 2010
#
# (c) 2006..2010 - OpenSLX GmbH

# enforce the use of bash (/bin/sh might be a link to incomplete shells)
SHELL = /bin/bash

# the following defaults should be filled via 'configure'
# and each of them can be overriden by setting the environment variable
# in the shell that executes this Makefile
ifeq ($(USR_BIN_PATH),)
	USR_BIN_PATH = /usr/bin
endif

ifeq ($(SLX_CONFIG_PATH),)
	SLX_CONFIG_PATH = /etc/opt/openslx
endif
ifeq ($(SLX_BASE_PATH),)
	SLX_BASE_PATH = /opt/openslx
endif
ifeq ($(SLX_PRIVATE_PATH),)
	SLX_PRIVATE_PATH = /var/opt/openslx
endif
ifeq ($(SLX_PUBLIC_PATH),)
	SLX_PUBLIC_PATH = /srv/openslx
endif
ifeq ($(SLX_TEMP_PATH),)
	SLX_TEMP_PATH = /tmp
endif

ifeq ($(SLX_INSTALL_LOG),)
	SLX_INSTALL_LOG = install.log
endif

tarball:
	@OPENSLX_VERSION_SVNREV=$$( svnversion .); \
	if test "$${OPENSLX_SVN_SNAPSHOT}" = "0"; then \
		unset OPENSLX_SVN_SNAPSHOT; \
		echo "OPENSLX_SVN_SNAPSHOT=\"0\"" \
			>REVISION; \
	else \
		OPENSLX_SVN_SNAPSHOT="1"; \
		rm -f REVISION; \
	fi; \
	. ./VERSIONS; \
	echo "OPENSLX_VERSION_SVNREV=\"$${OPENSLX_VERSION_SVNREV}\"" \
		>>REVISION; \
	echo "Creating OpenSLX $${OPENSLX_VERSION_STRING} tar ball "; \
	svn_repo_name=$$( pwd); \
	svn_repo_name="$${svn_repo_name##*/}"; \
	if ! test -d "../openslx-$${OPENSLX_VERSION_STRING}"; then \
		cd .. >/dev/null; \
		mkdir "openslx-$${OPENSLX_VERSION_STRING}"; \
                mount --bind "$${svn_repo_name}" "openslx-$${OPENSLX_VERSION_STRING}"; \
		cd - >/dev/null; \
		OPENSLX_SOURCEDIR_BINDMOUNT_CREATED="yes"; \
	fi; \
	echo -e "$(SLX_CONFIG_PATH)\n\
$(SLX_BASE_PATH)\n\
$(SLX_PRIVATE_PATH)\n\
$(SLX_PUBLIC_PATH)\n\
$(USR_BIN_PATH)/*" \
		>packaging/rpm/openslx-filelist; \
	cd .. >/dev/null; \
	tar cfhj \
		"$${svn_repo_name}/openslx-$${OPENSLX_VERSION_STRING}.tar.bz2" \
		--exclude-from="$${svn_repo_name}/Make.exclude_from_tar" \
		"openslx-$${OPENSLX_VERSION_STRING}/"; \
	test "$${OPENSLX_SOURCEDIR_BINDMOUNT_CREATED}" = "yes" && \
                umount "openslx-$${OPENSLX_VERSION_STRING}" && \
		rm -rf "openslx-$${OPENSLX_VERSION_STRING}"; \
	cd - >/dev/null; \
	rm REVISION packaging/rpm/openslx-filelist

release-tarball:
	@export OPENSLX_SVN_SNAPSHOT=0; \
	make tarball

dep-check:
	@if test "${TRACE_INSTALLATION}" = "1"; then set -x; fi; \
	echo "Checking installation requirements..."; \
	echo $$(date) >${SLX_INSTALL_LOG}; \
	if ! perl -e '$$x=2' 2>>${SLX_INSTALL_LOG} ; then \
		echo "  Perl is required, please install it."; \
		exit 1; \
	fi;

	@   # many of the following modules are part of core perl, but we check
	@   # for them just to be sure...
	@for m in Carp Clone Config::General Data::Dumper Cwd DBI Digest::MD5 \
                  Digest::SHA1 Encode Exporter Fcntl File::Basename File::Find \
                  File::Glob File::Path FindBin Getopt::Long HTTP::Request::Common \
                  JSON LWP::UserAgent List::Util MIME::Base64 Pod::Usage \
                  POSIX Scalar::Util Socket Storable Sys::Hostname Term::ReadLine \
                  Switch URI; do \
		if ! perl -e "use $$m" 2>>${SLX_INSTALL_LOG} ; then \
			echo "  The perl module '$$m' is required, please install it."; \
			exit 1; \
		fi; \
	done;

	@   # specific database modules are optional, but we tell the user if
	@   # support for a database is missing:
	@DEFAULT_DB_TYPE=""; \
	if test -e ${SLX_CONFIG_PATH}/settings; then \
        sed ${SLX_CONFIG_PATH}/settings \
          -e "s,=,=\"," -e "s,$$,\"," \
          > /tmp/slxsettings; \
		echo "Reading local settings..."; \
		. /tmp/slxsettings; \
        rm /tmp/slxsettings; \
	fi; \
	for m in $${SLX_DB_TYPE} SQLite mysql; do \
		if ! perl -Ilib -Iconfig-db -e "use OpenSLX::MetaDB::$$m" 2>>${SLX_INSTALL_LOG} ; then \
			echo -e "  'DBD::$$m' not found (or too old), so $$m-databases will not be \
supported."; \
		else \
			if test "$${DEFAULT_DB_TYPE}X" = "X"; then \
				DEFAULT_DB_TYPE=$$m; \
				echo "  db-type => $$m"; \
			fi; \
		fi; \
	done; \
	if test "$${DEFAULT_DB_TYPE}X" = "X"; then \
		echo "  None of the DB-modules is available! Please install one of them."; \
		exit 1; \
	else \
		echo $${DEFAULT_DB_TYPE} >DEFAULT-DB-TYPE; \
	fi; \
	if ! which rsync >/dev/null 2>&1; then \
		echo "  rsync is required, please install it."; \
		exit 1; \
	fi; 


plain-install:
	@if test "${TRACE_INSTALLATION}" = "1"; then set -x; fi; \
	echo "Installing OpenSLX project files"; \
	mkdir -p $(SLX_BUILD_PATH)$(SLX_CONFIG_PATH)/boot-env/syslinux/themes \
	      -p $(SLX_BUILD_PATH)$(SLX_BASE_PATH)/lib \
	      -p $(SLX_BUILD_PATH)$(SLX_BASE_PATH)/bin \
	      -p $(SLX_BUILD_PATH)$(SLX_BASE_PATH)/share/boot-env \
	      -p $(SLX_BUILD_PATH)$(SLX_BASE_PATH)/share/initramfs \
	      -p $(SLX_BUILD_PATH)$(SLX_BASE_PATH)/share/squashfs \
	      -p $(SLX_BUILD_PATH)$(SLX_BASE_PATH)/share/templates \
	      -p $(SLX_BUILD_PATH)$(SLX_BASE_PATH)/share/ramfstools \
	      -p $(SLX_BUILD_PATH)${USR_BIN_PATH};

	@   # copy license
	@cp COPYING $(SLX_BUILD_PATH)$(SLX_BASE_PATH)/;

	@   # copy all PERL-scripts and their required modules:
	@cp bin/slx* $(SLX_BUILD_PATH)$(SLX_BASE_PATH)/bin/; \
	cp config-db/slx* $(SLX_BUILD_PATH)$(SLX_BASE_PATH)/bin/; \
	cp installer/slx* $(SLX_BUILD_PATH)$(SLX_BASE_PATH)/bin/; \
	cp os-plugins/slx* $(SLX_BUILD_PATH)$(SLX_BASE_PATH)/bin/; \
	cp tools/uclibc-wrapper $(SLX_BUILD_PATH)$(SLX_BASE_PATH)/bin/; \
	tar --exclude=.svn -cp -C lib OpenSLX \
	  | tar -xp -C $(SLX_BUILD_PATH)$(SLX_BASE_PATH)/lib; \
    tar --exclude=.svn -cp -C boot-env OpenSLX \
      | tar -xp -C $(SLX_BUILD_PATH)$(SLX_BASE_PATH)/lib; \
	tar --exclude=.svn -cp -C config-db OpenSLX \
	  | tar -xp -C $(SLX_BUILD_PATH)$(SLX_BASE_PATH)/lib; \
	tar --exclude=.svn -cp -C installer OpenSLX \
	  | tar -xp -C $(SLX_BUILD_PATH)$(SLX_BASE_PATH)/lib; \
	tar --exclude=.svn -cp -C os-plugins OpenSLX \
	  | tar -xp -C $(SLX_BUILD_PATH)$(SLX_BASE_PATH)/lib; \
	tar --exclude=.svn -cp -C os-plugins plugins \
	  | tar -xp -C $(SLX_BUILD_PATH)$(SLX_BASE_PATH)/lib; \

	@   # copy distro-info (some parts into /opt, others into /etc):
	@tar --exclude=.svn --exclude=*.example \
	    -cp -C lib distro-info \
	  | tar -xp -C $(SLX_BUILD_PATH)$(SLX_BASE_PATH)/share; \
	tar --exclude=.svn --exclude=prereqfiles --exclude=trusted-package-keys/* \
	    --exclude=*.default --exclude=mirrors \
	    -cp -C lib distro-info \
	  | tar -xp -C $(SLX_BUILD_PATH)$(SLX_CONFIG_PATH); \

	@   # link all binaries & scripts into user-path:
	@ln -sf $(SLX_BASE_PATH)/bin/slx* $(SLX_BUILD_PATH)$(USR_BIN_PATH)/; \

	@   # copy shareable data:
	@tar --exclude=.svn -cp -C initramfs stage3-stuff/ | \
     tar -xp --strip-components 1 \
	     -C $(SLX_BUILD_PATH)$(SLX_BASE_PATH)/share/initramfs; \
	 tar --exclude=.svn -cp -C initramfs tools | \
	     tar -xp --strip-components 1 \
             -C $(SLX_BUILD_PATH)$(SLX_BASE_PATH)/share/ramfstools; \
	 tar --exclude=.svn -cp -C initramfs distro-specs | \
	     tar -xp -C $(SLX_BUILD_PATH)$(SLX_BASE_PATH)/share; \
     tar --exclude=.svn -cp -C initramfs uclib-rootfs | \
	     tar -xp -C $(SLX_BUILD_PATH)$(SLX_BASE_PATH)/share; \
     tar --exclude=.svn --exclude *.example --exclude OpenSLX -cp boot-env | \
         tar -xp -C $(SLX_BUILD_PATH)$(SLX_BASE_PATH)/share/; \
     cp -p boot-env/syslinux/pxemenu-*.example boot-env/syslinux/README.pxe \
           $(SLX_BUILD_PATH)$(SLX_CONFIG_PATH)/boot-env/syslinux/; \
     cp -p tools/mksquashfs $(SLX_BUILD_PATH)$(SLX_BASE_PATH)/share/squashfs/mksquashfs_3_2; \
     cp -p initramfs/eglibc-packages/mksquashfs/usr/bin/mksquashfs_3_3 \
           $(SLX_BUILD_PATH)$(SLX_BASE_PATH)/share/squashfs/; \
     cp -p initramfs/eglibc-packages/mksquashfs/usr/bin/mksquashfs_4 \
           $(SLX_BUILD_PATH)$(SLX_BASE_PATH)/share/squashfs/; \
     tar --exclude=.svn -cp -C initramfs tpm | \
         tar -xp -C $(SLX_BUILD_PATH)$(SLX_BASE_PATH)/share; \

	@   # link the library loader for the uclibc (to use the uclibc busybox)
	@ ln -sf ${SLX_BASE_PATH}/share/uclib-rootfs/lib/ld-uClibc.so.0 \
	  /lib/ld-uClibc.so.0

postinstall:
	@   # create default config folder hierarchy:
	@perl -Ilib -e 'use OpenSLX::ConfigFolder; createConfigFolderForDefaultSystem();'

	@   # create complete default settings and empty local settings file:
	@echo -e "# default setup for OpenSLX-installation\
\n\
\n# paths that are fixed at packaging/installation time:\
\nSLX_BASE_PATH=${SLX_BASE_PATH}\
\nSLX_CONFIG_PATH=${SLX_CONFIG_PATH}\
\n\
\n# paths which can be adjusted after installation:\
\nSLX_PRIVATE_PATH=${SLX_PRIVATE_PATH}\
\nSLX_PUBLIC_PATH=${SLX_PUBLIC_PATH}\
\nSLX_TEMP_PATH=${SLX_TEMP_PATH}\n" \
	  > $(SLX_BUILD_PATH)$(SLX_BASE_PATH)/share/settings.default; \
	test -e $(SLX_BUILD_PATH)$(SLX_CONFIG_PATH)/settings || \
	  echo -e "# Local setup for OpenSLX (overrides default settings).\
\n#\n# Please look at $(SLX_BASE_PATH)/share/settings.default and the docs to learn\
\n# about the available options.\n" \
	    > $(SLX_BUILD_PATH)$(SLX_CONFIG_PATH)/settings; \

	@   # create slxversion script:
	@if test -e REVISION; then \
		. REVISION; \
	else \
		OPENSLX_VERSION_SVNREV=$$(svnversion .); \
	fi; \
	test "$${OPENSLX_SVN_SNAPSHOT}" = "0" && \
		unset OPENSLX_SVN_SNAPSHOT || \
		OPENSLX_SVN_SNAPSHOT="1"; \
	. ./VERSIONS; \
	echo -e "#! /bin/sh\n\necho $${OPENSLX_VERSION_STRING}" \
	    > $(SLX_BUILD_PATH)$(SLX_BASE_PATH)/bin/slxversion; \
	chmod a+x $(SLX_BUILD_PATH)$(SLX_BASE_PATH)/bin/slxversion; \
	ln -sf $(SLX_BASE_PATH)/bin/slxversion $(SLX_BUILD_PATH)$(USR_BIN_PATH)/; \

	@   # set default db-type:
	@DEFAULT_DB_TYPE=$$(cat DEFAULT-DB-TYPE); \
	rm DEFAULT-DB-TYPE; \
	echo -n '  '; slxsettings set db-type="$${DEFAULT_DB_TYPE}";

install: check-upgrade dep-check plain-install postinstall

prepare_upgrade:
	@rm -rf $(SLX_BASE_PATH)
	@rm -f $(USR_BIN_PATH)/slx*

uninstall:
	@echo "Uninstalling openslx.org project files but keeping configs \
and stage1"
	@rm -rf $(SLX_BASE_PATH)
	@echo "keeping files in $(SLX_CONFIG_PATH)"
	@echo "keeping files in $(SLX_PRIVATE_PATH)"
	@rm -rf $(SLX_PUBLIC_PATH)
	@rm -f $(USR_BIN_PATH)/slx*
	@rm -f /lib/ld-uClibc.so.0

mrproper:
	@echo "Wiping all!"
	@rm -rf $(SLX_BASE_PATH)
	@rm -rf $(SLX_CONFIG_PATH)
	@rm -rf $(SLX_PRIVATE_PATH)
	@rm -rf $(SLX_PUBLIC_PATH)
	@rm -f $(USR_BIN_PATH)/slx*

check-upgrade:
	@   # find out if there is an older version installed and, if so, clean that
	@INSTALLED_VERSION=$$(slxversion 2>/dev/null); \
	if ! test -z "$${INSTALLED_VERSION}"; then \
		if test -e REVISION; then \
			. REVISION; \
		else \
			OPENSLX_VERSION_SVNREV=$$(svnversion .); \
		fi; \
		test "$${OPENSLX_SVN_SNAPSHOT}" = "0" && \
			unset OPENSLX_SVN_SNAPSHOT || \
			OPENSLX_SVN_SNAPSHOT="1"; \
		. ./VERSIONS; \
		if test $${INSTALLED_VERSION} != $${OPENSLX_VERSION_STRING}; then \
			echo "preparing upgrade from version ($${INSTALLED_VERSION})"; \
			make prepare_upgrade; \
		fi; \
	fi

clean:
	@echo "Cleanup OpenSLX source directory "
	@for file in $(SLX_INSTALL_LOG) openslx-*.tar.bz2; do \
		rm -f $${file}; \
	done