# vim:sts=4:sw=4:
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############################ This file is in P4 ############################
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# $Id: //depot/ops/corp/grhat/scripts/Makefile.changeset#12 $

# Target location is /software/grhat/targets/

FILES=$(shell find files -type f 2>/dev/null)
P4GRHAT=/home/$(LOGNAME)/src/ops/corp/grhat
UPDNAME=$(shell basename `pwd`)
UPDFILE=$(P4GRHAT)/updates/$(UPDNAME)


all: checkp4runme workfiles.tar.bz2 runme done

testroot:
	@if [ $$UID -eq 0 ]; then echo "You can't be root"; exit 1; fi
	@echo "Please type your password to seed sudo"
	@sudo echo
	@echo "Password received or not needed, continuing..."

checkfiles: testroot
# sudo is for files like ~root/.ssh/authorized_keys, non readable by users
	@find ../ -type f | grep /files/ | sudo xargs md5sum | sed 's/\.\.\/.*\/files\///' | sort +1 -u  > /tmp/files.tree
	@find $(P4GRHAT)/tree -type f | xargs md5sum | sed "s/`echo $(P4GRHAT) | sed 's/\//\\\\\//g'`\/tree\///" | sort +1 > /tmp/p4.tree
	@diff -u /tmp/p4.tree /tmp/files.tree > /tmp/p4tofiles.diff; exit 0
	@/bin/rm /tmp/p4.tree /tmp/files.tree
	@cat /tmp/p4tofiles.diff



checkp4runme: testroot
	@if [ ! -f $(UPDFILE) ]; then echo "$(UPDFILE) missing in your p4 directory"; exit 1; fi
	

runme:	testroot $(UPDFILE)
	@sudo touch runme
	@echo "Checking if $(UPDFILE) is checked in"
	@cd $(P4GRHAT)/updates || exit 1; \
	if [ `p4 diff $(UPDNAME) | wc -l` -gt 1 ]; then \
	    echo -e '\E[42m'; \
	    echo "Warning, $(UPDNAME) is different from the p4 copy"; \
	    p4 diff -du $(UPDNAME); \
	    echo "Type ENTER to continue with a file different from the p4 copy or ^C to quit"; \
	    echo -e '\E[40m'; \
	    read; \
	fi

	@echo "Checking if $(UPDFILE) is up to date with p4"
	@cd $(P4GRHAT)/updates || exit 1; \
	if [ `p4 sync -n $(UPDNAME) | wc -l` -gt 0 ]; then \
	    echo -e '\E[42m'; \
	    echo "WARNING, $(UPDNAME)"; \
	    echo "is not up to date with the p4 version"; \
	    echo "Are you really _REALLY_ sure you want to push this file?"; \
	    echo "Type ENTER to continue or ^C to quit"; \
	    echo -e '\E[40m'; \
	    read; \
	fi

	@if cmp $@ $(UPDFILE) &>/dev/null; then \
	    echo "$@ up to date"; \
	else \
	    echo "Updating $@"; \
	    diff -u runme $(UPDFILE) | less; \
	    echo "Type ENTER to confirm; ^C to quit"; read || exit 1; \
	    cp -f $(UPDFILE) /tmp || exit 1; \
	    echo 'Work around over-restrictive umask' >/dev/null ; \
	    cp -f $(UPDFILE) /tmp || exit 1; \
	    chmod o=g /tmp/$(UPDNAME) || exit 1; \
	    chmod o-w /tmp/$(UPDNAME) || exit 1; \
	    sudo mv -f /tmp/$(UPDNAME) runme || exit 1; \
	    sudo chown root.root runme || exit 1; \
	fi


workfiles.tar.bz2: testroot updatefiles
	@sudo chown -R root.root files
	@echo "Rebuilding $@"
	@sudo tar cjf $@ files


done:
	@echo -e "You can type make checkfiles to make sure all files in the p4 tree are in your\nchangesets (but they may not be for some tags/targets like srvgold)\n"
	@echo "Consider typing make newdate if you want to force clients to re-pull this update"



newdate:
	@sudo bash -c "date '+%s' > updatedate"
	@echo "Done"


updatefiles: testroot $(FILES)
	@echo
	@echo "Checking that files in runme are in files/"
#	grep -v ' \\$$' removes installfile /foo $VAR, which can't be checked
	@IFS=" "; for file in `grep ^installfile runme | grep -v '/*$$' |  grep -v ' \\$$' | sed -e "s/installfile //" -e 's/ *$$//' -e "s/.* \([^ ]* [^ ]*\)/\1/" -e "s/ /\//" -e "s/'\*'/*/" -e "s/^\///"`; \
	do \
	    if [ ! -e files/$$file ]; then \
		echo -e "$$file missing, type the following to create it:\nmake files/$$file; make"; \
		exit 1; \
	    fi \
	done 

files/%: $(P4GRHAT)/tree/%
	@echo "Checking if $? is checked in"
	@cd $(P4GRHAT) || exit 1; \
	if [ `p4 diff $? | wc -l` -gt 1 ]; then \
	    echo "Warning, $? is different from the p4 copy"; \
	    p4 diff -du $?; \
	    echo "Type ENTER to continue with a file different from the p4 copy or ^C to quit"; \
	    read; \
	fi

	@echo "Checking if $? is up to date with p4"
	@cd $(P4GRHAT) || exit 1; \
	if [ `p4 sync -n $? | wc -l` -gt 0 ]; then \
	    echo -e '\E[42m'; \
	    echo "WARNING, $?"; \
	    echo "is not up to date with the p4 version"; \
	    echo "Are you really _REALLY_ sure you want to push this file?"; \
	    echo "Type ENTER to continue or ^C to quit"; \
	    echo -e '\E[40m'; \
	    read; \
	fi

	@echo "Updating $@"
	@P4FILE=$(P4GRHAT)/tree/`echo $@|sed "s/^files//"`; \
	if [ -f $@ ]; then \
	    if ! cmp $@ $$P4FILE; then \
		diff -u $@ $$P4FILE | less; \
		echo "Type ENTER to confirm; ^C to quit"; read; \
	    else \
		echo -e "make had a bogus dependency on $@\nbecause your p4 files look more recent then the /software ones, updating date"; \
	    fi; \
	else \
	    echo "$@ is a new file, installing..."; \
	fi
	@cp -f $(P4GRHAT)/tree/`echo $@|sed "s/^files//"` /tmp
	@-sudo mkdir -p `echo $@ | sed "s/$$(basename $@)//"` 2>/dev/null
	@sudo mv -f /tmp/`basename $@` $@
#	Work around over-restrictive umask
	@sudo chmod o=g $@
	@sudo chmod o-w $@
	@sudo chown root.root $@