makefile

ETC		= $(shell if test -f .etc; then cat .etc; else echo /etc; fi)
PREFIX		= $(shell if test -f .prefix; then cat .prefix; else echo /usr; fi)
RUN		= $(shell if test -f .run; then cat .run; else echo /var/run; fi)
LOG		= $(shell if test -f .log; then cat .log; else echo /var/log; fi)
UPSHELL		= $(shell if test -f .shell; then cat .shell; else echo /bin/sh; fi)
AWK		= $(shell etc/getawk)
CWD		= $(shell pwd)
APTREPO		= /srv/repo/apt
YUMREPO   	= dev:/srv/repo/yum/beingmeta/noarch
YUMHOST   	= dev
YUMUPDATE 	= /srv/repo/scripts/freshyum

VERSION=$(shell cat VERSION 2>/dev/null || u8_gitversion etc/base_version)
BASEVERSION=$(shell echo ${VERSION} | sed -e "s/upsource-//g" -e "s/-[[:digit:]]\+//g")
RELEASE=$(shell echo ${VERSION} | sed -e "s/upsource-[[:digit:]]\+\.[[:digit:]]-\+//g")

DESTDIR=
INSTALLDIR=install -d
INSTALLBIN=install -m 555
INSTALLFILE=install -m 644

LIBDIR=${PREFIX}/lib/upsource
RUNDIR=${RUN}/upsource
LOGDIR=${LOG}/upsource
BINDIR=${PREFIX}/bin

STATEFILES=.prefix .run .etc .awk .log
REWRITES=-e "s:@PREFIX@:${PREFIX}:g" \
	 -e "s:@LIBDIR@:${LIBDIR}:g" \
	 -e "s:@RUNDIR@:${RUNDIR}:g" \
	 -e "s:@LOGDIR@:${LOGDIR}:g" \
	 -e "s:@SHELL@:${UPSHELL}:g"   \
	 -e "s:@AWK@:${AWK}:g"       \
	 -e "s:@ETC@:${ETC}:g" 
SPEC_REWRITES=-e "s:@VERSION@:${VERSION}:g" \
	      -e "s:@BASEVERSION@:${BASEVERSION}:g" \
	      -e "s:@RELEASE@:${RELEASE}:g"

INITSCRIPTS=etc/systemd-upsource.service etc/systemd-upsource.path \
	etc/systemd-upsource.target etc/upstart-upsource.conf \
	etc/sysv-upsource.sh 

etc/%: etc/%.in .state
	@sed ${REWRITES} < $< > $@
	@if test -x $<; then chmod a+x $@; fi
	@echo "# (upsource/makefile) Generated $@"
build: upsource sourcetab.awk config_state initscripts

initscripts: ${INITSCRIPTS}

config_state: ${STATEFILES}

upsource: upsource.in .state
	@sed ${REWRITES} < $< > $@
	@chmod a+x $@
	@echo "# (upsource/makefile) Generated $@"

sourcetab.awk: sourcetab.awk.in .state
	@sed ${REWRITES} < $< > $@
	@echo "# (upsource/makefile) Generated $@"

install-dirs:
	@${INSTALLDIR} ${DESTDIR}${ETC}
	@${INSTALLDIR} ${DESTDIR}${ETC}/upsource.d
	@${INSTALLDIR} ${DESTDIR}${PREFIX}/bin
	@${INSTALLDIR} ${DESTDIR}${RUNDIR}
	@${INSTALLDIR} ${DESTDIR}${LIBDIR}
	@${INSTALLDIR} ${DESTDIR}${LIBDIR}/handlers

install-inits: install-sysv install-upstart install-systemd

install-systemd: install-dirs
	@echo "# (upsource/makefile) Installing systemd units"
	@${INSTALLDIR} ${DESTDIR}/lib/systemd/system
	@${INSTALLFILE} etc/systemd-upsource.target \
		${DESTDIR}/lib/systemd/system/upsource.target
	@${INSTALLFILE} etc/systemd-upsource.service \
		${DESTDIR}/lib/systemd/system/upsource.service
	@${INSTALLFILE} etc/systemd-upsource.path \
		${DESTDIR}/lib/systemd/system/upsource.path

install-upstart: install-dirs
	@echo "# (upsource/makefile) Installing upstart inits"
	@${INSTALLDIR} ${DESTDIR}/etc/init
	@${INSTALLFILE} etc/upstart-upsource.conf \
		${DESTDIR}/etc/init/upsource.conf

install-sysv: install-dirs
	@echo "# (upsource/makefile) Installing sysv scripts"
	@${INSTALLDIR} ${DESTDIR}/etc/init.d
	@${INSTALLBIN} etc/sysv-upsource.sh ${DESTDIR}/etc/init.d/upsource

install-config: install-dirs
	@if test ! -f ${DESTDIR}${ETC}/upsource.d/config; then	\
	  echo "# (upsource/makefile) Installing a default upsource config";		\
	  ${INSTALLFILE} config.ex.sh				\
	     ${DESTDIR}${ETC}/upsource.d/config;		\
	else							\
	  echo "# (upsource/makefile) Not overwriting current "	\
              ${DESTDIR}${ETC}/upsource.d/config;		\
	fi;

install-core: build install-dirs
	@echo "# (upsource/makefile) Installing upsource script and support files"
	@${INSTALLDIR} ${DESTDIR}${PREFIX}/bin
	@${INSTALLBIN} upsource ${DESTDIR}${PREFIX}/bin
	@${INSTALLFILE} sourcetab.awk ${DESTDIR}${LIBDIR}
	@echo "# (upsource/makefile) Installing upsource handlers"
	@${INSTALLBIN} handlers/git.upsource ${DESTDIR}${LIBDIR}/handlers
	@${INSTALLBIN} handlers/rsync.upsource ${DESTDIR}${LIBDIR}/handlers
	@${INSTALLBIN} handlers/svn.upsource ${DESTDIR}${LIBDIR}/handlers
	@${INSTALLBIN} handlers/link.upsource ${DESTDIR}${LIBDIR}/handlers
	@${INSTALLBIN} handlers/s3.upsource ${DESTDIR}${LIBDIR}/handlers
	@${INSTALLBIN} handlers/pre.sh ${DESTDIR}${LIBDIR}/handlers
	@${INSTALLBIN} handlers/post.sh ${DESTDIR}${LIBDIR}/handlers

install: build install-core install-dirs install-config

xinstall:
	sudo make install

clean:
	rm -f sourceup sourcetab.awk ${INITSCRIPTS} ${STATEFILES}

.PHONY: build config_state initscripts clean 			\
	install-dirs install-config  install-inits 		\
	install-sysv install-upstart install-systemd

# Maintaining state files

.prefix:
	@echo ${PREFIX} > .prefix.tmp
	@if test ! -f .prefix; then           \
	  echo ${PREFIX} > .prefix;           \
	  rm .prefix.tmp;                     \
	elif diff .prefix .prefix.tmp; then   \
	  echo PREFIX changed                 \
	  mv .prefix.tmp .prefix;             \
	else rm .prefix.tmp;                  \
	fi

.run:
	@echo ${RUN} > .run.tmp
	@if test ! -f .run; then              \
	  echo ${RUN} > .run;                 \
	  rm .run.tmp;                        \
	elif diff .run .run.tmp; then         \
	  echo RUN changed                    \
	  mv .run.tmp .run;                   \
	else rm .run.tmp;                     \
	fi

.etc:
	@echo ${ETC} > .etc.tmp
	@if test ! -f .etc; then             \
	  echo ${ETC} > .etc;                \
	  rm .etc.tmp;                       \
	elif diff .etc .etc.tmp; then        \
	  echo ETC changed                   \
	  mv .etc.tmp .etc;                  \
	else rm .etc.tmp;                    \
	fi

.awk:
	@echo ${AWK} > .awk.tmp
	@if test ! -f .awk; then             \
	  echo ${AWK} > .awk;                \
	  rm .awk.tmp;                       \
	elif diff .awk .awk.tmp; then        \
	  echo AWK changed                   \
	  mv .awk.tmp .awk;                  \
	else rm .awk.tmp;                    \
	fi

.log:
	@echo ${LOG} > .log.tmp
	@if test ! -f .log; then             \
	  echo ${LOG} > .log;                \
	  rm .log.tmp;                       \
	elif diff .log .log.tmp; then        \
	  echo LOG changed                   \
	  mv .log.tmp .log;                  \
	else rm .log.tmp;                    \
	fi

.state: ${STATEFILES}
	@touch .state
	@ls -l .state