cvcMakefile

# Makefile for creating a batch job to run CVC on cvcrc files in the current directory
# based on corresponding netlist, power, and model files.
# Version 0.8

#   Copyright 2017 D. Mitch Bailey

#   This program is free software: you can redistribute it and/or modify
#   it under the terms of the GNU General Public License as published by
#   the Free Software Foundation, either version 3 of the License, or
#   (at your option) any later version.

#   This program is distributed in the hope that it will be useful,
#   but WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#   GNU General Public License for more details.

#   You should have received a copy of the GNU General Public License
#   along with this program.  If not, see <http://www.gnu.org/licenses/>.
#

# usage:
# make  <- default
# make all  <- same as default
# make mode1 mode2  <- for specified modes
# make cvcrc.mode1 cvcrc.modex  <- for specified modes

# First, delete batch job.
# Second, create batch job, displaying all specified modes that need to be rerun.
# Finally, upon confirmation, run batch job.

# Define modes.
CVCRCFILES := $(wildcard cvcrc.*)
MODES := $(CVCRCFILES:cvcrc.%=%)
MAKEFILES := $(MODES:%=makefile.%)

# Set batchcvc file
batchcvc := $(shell mktemp /tmp/batchcvc.XXXXX)

# Set first and last goal.
ifneq ($(MAKECMDGOALS),)
FIRST_GOAL := $(word 1, $(MAKECMDGOALS))
LAST_GOAL := $(word $(words $(MAKECMDGOALS)), $(MAKECMDGOALS))
else
FIRST_GOAL := all
LAST_GOAL := all
endif

# Get date from current directory.
DATE := $(notdir $(PWD))

# Dummy default rule.
.PHONY: all
all ::

# Remove files before first target.
$(FIRST_GOAL) ::
	@rm -f $(batchcvc)
	@rm -f $(MAKEFILES)
	@echo Checking modes

# Real default rule.
all :: $(MAKEFILES)

.SECONDEXPANSION:
$(MODES) :: makefile.$$@

.PRECIOUS: $(CVCRCFILES)
$(CVCRCFILES) :: $$(patsubst cvcrc.%,makefile.%,$$@)

makefile.% :
# Create makefile for each mode based on corresponding cvcrc file.
	@echo export date = $(DATE) > $@
# Convert cvcrc shell variables to make variables.
	@sed -e 's/$$\([A-Za-z0-9_][A-Za-z0-9_]*\)/$$(\1)/g' \
		-e 's/{/(/g' -e 's/}/)/g' $(@:makefile.%=cvcrc.%) >> $@
# Create report file target.
	@echo '$$(CVC_REPORT_FILE) :: \
		$$(CVC_NETLIST) $$(CVC_MODEL_FILE) $$(CVC_POWER_FILE) $(@:makefile.%=cvcrc.%)' >> $@
	@echo " @cvc $(@:makefile.%=cvcrc.%)" >> $@
	@echo "" >> $@
# Create cdl if necessary
	@echo '$$(CVC_NETLIST) :: cdl' >> $@
	@echo ' calibre_cvc $$(CVC_TOP) $(realpath cdl) $$(@)' >> $@
	@echo "" >> $@
# Check that report file ended correctly. If not, touch cvcrc file to rebuild.
	@echo "check-$(@:makefile.%=%) ::" >> $@
	@echo ' @grep -s -q "CVC: End:" $$(CVC_REPORT_FILE) || touch $(@:makefile.%=cvcrc.%)' >> $@
	@$(MAKE) --no-print-directory -f $@ check-$(@:makefile.%=%)
# Create batchcvc file with commands for all modes that need updating.
	@$(MAKE) --no-print-directory -q -f $@ \
			&& echo "mode $(@:makefile.%=%) is up to date" \
			|| $(MAKE) --no-print-directory -n -f $@ | \
		uniq >> $(batchcvc)

# Run batchcvc after last target, if batchcvc file exists.
$(LAST_GOAL) ::
# In case batchcvc does not exist, create empty file.
	@touch $(batchcvc)
	@echo ""
	@rm -f $(MAKEFILES)
	@sed -i '2,$${/calibre/d;}' $(batchcvc)
	@cat $(batchcvc)
# Pause for comfirmation if there are updates.
	@[ -s $(batchcvc) ] \
		&& read -r -n 1 -p "Press any key to continue, ctrl-C to quit: ==>" \
		|| echo no update necessary
	@chmod u+x $(batchcvc)
	@export date=$(DATE); $(batchcvc)
	@rm -f $(batchcvc)

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