.PHONY: install install-testconfig uninstall-testconfig uninstall clean

SH_LIKE  = sh ksh bash zsh profile.sh bash_completion
CSH_LIKE = csh tcsh tcsh_completion profile.csh
OTHER    = perl.pm python.py ruby.rb lisp tcl fish cmake r.R

# example modulefiles to install
EXAMPLE_MODFILES_SRCDIR := ../contrib/modulefiles
EXAMPLE_MODFILES = dot module-git module-info modules null use.own
EXAMPLE_TESTCONFIG_MODFILES = null

# source definitions shared across the Makefiles of this project
ifneq ($(wildcard ../Makefile.inc),../Makefile.inc)
  $(error ../Makefile.inc is missing, please run '../configure')
endif
include ../Makefile.inc

# source version definitions shared across the Makefiles of this project
include ../version.inc

# kind of config file to use: modulerc or .modulespath
ifeq ($(setdotmodulespath),y)
  # both configuration files will be installed and in this case default init
  # scripts will use .modulespath prior to modulerc. If .modulespath sets a
  # module path then modulerc will be ignored
  ALL_CONFIG := .modulespath modulerc
else
  ALL_CONFIG := modulerc
endif

# generate 'module use' commands to put in modulerc from modulepath
modulerc := $(addprefix \nmodule use --append {,$(subst :,} {,$(modulepath)}))
# generate 'module load' commands to put in modulerc from loadedmodules
ifneq ($(loadedmodules),)
  modulerc := $(modulerc)$(addprefix \nmodule load ,\
    $(subst :, ,$(loadedmodules)))
endif

ifeq ($(compatversion),y)
SH_LIKE += profile-compat.sh
CSH_LIKE += profile-compat.csh
endif

ALL_SHELLS = $(SH_LIKE) $(CSH_LIKE) $(OTHER)

all: $(ALL_SHELLS) $(ALL_CONFIG) $(EXAMPLE_MODFILES_SRCDIR)/modules
ifeq ($(versioning),y)
all: $(EXAMPLE_MODFILES_SRCDIR)/version
endif

# if enabled translate to keep text after markup elsewhere remove the
# entire line
ifeq ($(setmanpath),y)
  setmanpathre := s|@setmanpath@||g
else
  setmanpathre := /@setmanpath@/d
endif
ifeq ($(setbinpath),y)
  setbinpathre := s|@setbinpath@||g
else
  setbinpathre := /@setbinpath@/d
endif
ifeq ($(compatversion),y)
  compatversionre := s|@compatversion@||g
  notcompatversionre := /@notcompatversion@/d
else
  compatversionre := /@compatversion@/d
  notcompatversionre := s|@notcompatversion@||g
endif

# comment entries if feature not enabled
ifeq ($(versioning),y)
  versdir := $(baseprefix)/versions
  setversioning :=
else
  setversioning := \#
endif

# define translation rules for quarantine mechanism
ifeq ($(quarantinevars),)
setquarvarsre := /@setquarvars@/d
notsetquarvarsre := s|@notsetquarvars@||g
else
setquarvarsre := s|@setquarvars@||g
notsetquarvarsre := /@notsetquarvars@/d
define runenvvarre
$(if $(filter-out ${1},${2}),s|\(@\(.*\)RUNENV_VAR\(.*\)RUNENV_VAL\(.*\)@\)|\2MODULES_RUNENV_${1}\3${2}\4\n\1|g;)
endef
quarvarsre = -e 's|@RUN_QUARANTINE@|$(foreach vv,$(quarantinevars),$(firstword\
	$(subst =, ,$(vv))))|g;
quarvarsre += $(foreach vv,$(quarantinevars),$(call runenvvarre,$(firstword\
	$(subst =, ,$(vv))),$(subst $(firstword $(subst =, ,$(vv)))=,,$(vv))))
quarvarsre += s/@.*RUNENV_VAR.*@//;'
endif

define translate-in-script
sed -e 's|@prefix@|$(prefix)|g' \
	-e 's|@baseprefix@|$(baseprefix)|g' \
	-e 's|@libexecdir@|$(libexecdir)|g' \
	-e 's|@initdir@|$(initdir)|g' \
	-e 's|@etcdir@|$(etcdir)|g' \
	-e 's|@modulefilesdir@|$(modulefilesdir)|g' \
	-e 's|@bindir@|$(bindir)|g' \
	-e 's|@mandir@|$(mandir)|g' \
	-e '$(setmanpathre)' \
	-e '$(setbinpathre)' \
	-e '$(compatversionre)' \
	-e '$(notcompatversionre)' \
	-e 's|@modulerc@|$(modulerc)|g' \
	-e 's|@modulepath@|$(modulepath)|g' \
	-e '$(setquarvarsre)' $(quarvarsre) \
	-e '$(notsetquarvarsre)' \
	-e 's|@SHELLNAME@|$@|g' \
	-e 's|@VERSIONING@|$(setversioning)|g' \
	-e 's|@VERSION@|$(VERSION)|g' \
	-e 's|@TCLSH@|$(TCLSH)|g' $< > $@
endef

# avoid shared definitions to be rebuilt by make
../Makefile.inc ../version.inc: ;

%: %.in
	$(translate-in-script)

# tcsh is derivated from csh init script
tcsh: csh.in
	$(translate-in-script)

# this rule is needed for profile.sh to get matched
profile.sh: profile.sh.in
	$(translate-in-script)

# this rule is needed for profile-compat.sh to get matched
profile-compat.sh: profile-compat.sh.in
	$(translate-in-script)

$(EXAMPLE_MODFILES_SRCDIR)/modules: $(EXAMPLE_MODFILES_SRCDIR)/modules.in ../version.inc
	$(translate-in-script)

$(EXAMPLE_MODFILES_SRCDIR)/version: $(EXAMPLE_MODFILES_SRCDIR)/version.in ../version.inc
	$(translate-in-script)

# example configs for test rules
install-testconfig:
	mkdir -p $(DESTDIR)$(initdir)
	mkdir -p $(DESTDIR)$(etcdir)
	mkdir -p $(DESTDIR)$(prefix)/etc
	mkdir -p $(DESTDIR)$(modulefilesdir)
	mkdir -p $(DESTDIR)$(prefix)/test/modulefiles $(DESTDIR)$(prefix)/test/etc
	cp $(addprefix $(EXAMPLE_MODFILES_SRCDIR)/,$(EXAMPLE_TESTCONFIG_MODFILES)) $(DESTDIR)$(modulefilesdir)/

uninstall-testconfig:
	rmdir $(DESTDIR)$(prefix)/test/modulefiles $(DESTDIR)$(prefix)/test/etc $(DESTDIR)$(prefix)/test
	rm -f $(addprefix $(DESTDIR)$(modulefilesdir)/,$(EXAMPLE_TESTCONFIG_MODFILES))
	rmdir --ignore-fail-on-non-empty $(DESTDIR)$(modulefilesdir)
	rmdir --ignore-fail-on-non-empty $(DESTDIR)$(etcdir)
	rmdir --ignore-fail-on-non-empty $(DESTDIR)$(initdir)

install: all
	mkdir -p $(DESTDIR)$(initdir)
	mkdir -p $(DESTDIR)$(initdir)/ksh-functions
	mkdir -p $(DESTDIR)$(modulefilesdir)
	cp $(ALL_SHELLS) $(DESTDIR)$(initdir)/
	cp fish_completion $(DESTDIR)$(initdir)/
	cp -r zsh-functions $(DESTDIR)$(initdir)/
	cp ksh $(DESTDIR)$(initdir)/ksh-functions/module
ifeq ($(compatversion),y)
	cp ksh $(DESTDIR)$(initdir)/ksh-functions/switchml
else
	rm -f $(DESTDIR)$(initdir)/ksh-functions/switchml
endif
	cp -P --remove-destination $(ALL_CONFIG) $(DESTDIR)$(initdir)/
ifeq ($(examplemodulefiles),y)
	cp $(addprefix $(EXAMPLE_MODFILES_SRCDIR)/,$(EXAMPLE_MODFILES)) $(DESTDIR)$(modulefilesdir)/
endif
ifeq ($(versioning),y)
	mkdir -p $(DESTDIR)$(versdir)
	cp $(EXAMPLE_MODFILES_SRCDIR)/version $(DESTDIR)$(versdir)/$(VERSION)
endif

uninstall:
	rm -f $(addprefix $(DESTDIR)$(initdir)/,$(ALL_SHELLS) fish_completion)
	rm -f $(DESTDIR)$(initdir)/ksh-functions/module
ifeq ($(compatversion),y)
	rm -f $(DESTDIR)$(initdir)/ksh-functions/switchml
endif
	rm -f $(DESTDIR)$(initdir)/zsh-functions/_module
	rm -f $(addprefix $(DESTDIR)$(initdir)/,$(ALL_CONFIG))
	rmdir --ignore-fail-on-non-empty $(DESTDIR)$(modulefilesdir)
	@if [ -d $(DESTDIR)$(modulefilesdir) ]; then echo -e "\nWARNING: $(DESTDIR)$(modulefilesdir) is not empty so skip removal\n" >&2; fi
	rmdir $(DESTDIR)$(initdir)/ksh-functions
	rmdir $(DESTDIR)$(initdir)/zsh-functions
	rmdir --ignore-fail-on-non-empty $(DESTDIR)$(initdir)
	@if [ -d $(DESTDIR)$(initdir) ]; then echo -e "\nWARNING: $(DESTDIR)$(initdir) is not empty so skip removal\n" >&2; fi
ifeq ($(versioning),y)
	rm -f $(DESTDIR)$(versdir)/$(VERSION)
	rmdir --ignore-fail-on-non-empty $(DESTDIR)$(versdir)
	@if [ -d $(DESTDIR)$(versdir) ]; then echo -e "\nWARNING: $(DESTDIR)$(versdir) is not empty so skip removal\n" >&2; fi
endif

clean:
	rm -f $(ALL_SHELLS) modulerc .modulespath $(EXAMPLE_MODFILES_SRCDIR)/modules
ifeq ($(versioning),y)
	rm -f $(EXAMPLE_MODFILES_SRCDIR)/version
endif
