# Minimal makefile for Sphinx documentation
#

SHELL = /bin/bash

MAKEDIR := $(dir $(lastword $(MAKEFILE_LIST)))

# You can set these variables from the command line.
EXP_OPEN := $$((
EXP_CLOSE := ))
CPU_CORES := $(shell nproc)
CPU_CORES_2 := $(shell echo $(EXP_OPEN) $(CPU_CORES) * 2 $(EXP_CLOSE))

SPHINXOPTS      = -j $(CPU_CORES_2)
SPHINXBUILD     = [ -e env/bin/activate ] && source env/bin/activate; sphinx-build
SPHINXAUTOBUILD = [ -e env/bin/activate ] && source env/bin/activate; sphinx-autobuild
SPHINXPROJ      = SkywaterPDK
SOURCEDIR       = .
BUILDDIR        = _build

# Put it first so that "make" without argument is like "make help".
help:
	@$(SPHINXBUILD) -M help "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)

# Vim makes a '4913' file for file system checking. Seriously.
livehtml:
	@$(SPHINXAUTOBUILD) \
		-b html \
		--delay 5 \
		\
		--ignore \*.swp \
		--ignore \*~ \
		--ignore env \
		--ignore _build \
        	--ignore .git \
        	--ignore */4913 \
		\
		$(SPHINXOPTS) \
		"$(SOURCEDIR)" \
		"$(BUILDDIR)/html"

.PHONY: help livehtml Makefile

# Conda environment to make it easy to get all the dependencies required (like Yosys and stuff).
env/Miniconda3-latest-Linux-x86_64.sh:
	mkdir env
	wget https://repo.anaconda.com/miniconda/Miniconda3-latest-Linux-x86_64.sh -O env/Miniconda3-latest-Linux-x86_64.sh
	chmod a+x env/Miniconda3-latest-Linux-x86_64.sh


env:
	rm -rf env
	make env/Miniconda3-latest-Linux-x86_64.sh
	./env/Miniconda3-latest-Linux-x86_64.sh -p $(PWD)/env -b -f
	source env/bin/activate; conda config --system --add envs_dirs $(PWD)/env/envs
	source env/bin/activate; conda config --system --add pkgs_dirs $(PWD)/env/pkgs
	source env/bin/activate; conda env update --name base --file ./environment.yml
	make requirements

.PHONY: env

# PIP requirements in the environment...
requirements.txt:
	@true

env/.requirements.txt: requirements.txt
	source env/bin/activate; pip install -r requirements.txt
	touch -r requirements.txt env/.requirements.txt

requirements: env/.requirements.txt
	@true

.PHONY: requirements

# Generate the rules/periphery-rules.rst from CSV files in rules/periphery/
$(wildcard rules/periphery/*):
	true

rules/periphery-rules.rst: $(wildcard rules/periphery/*)
	source env/bin/activate; cd rules/periphery; ./periphery-split-csv.py > /dev/null

# Various automated fixups that can be run
fixup:
	# Make sure it is SkyWater
	find ../ -type f -name \*.rst -exec sed -i 's/Skywater/SkyWater/gi' \{\} \+
	# Strip trailing space
	find ../ -type f -name \*.rst -exec sed -i 's/ \+$$//' \{\} \+
	# Make sure all library names have the :lib: role.
	find ../ -type f -name \*.rst -exec sed -i -e'/:name:.*/!s/\(:lib:\)\?`\?\(sky130_[a-z0-9]\+_[a-z0-9]\+\(_[a-z0-9]\+\)\?\)`\?\(\s\|$$\)/:lib:`\2`\4/g' \{\} \+

.PHONY: fixup

echo:
	@echo '$(SPHINXBUILD) -M XXXX "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)'

# Catch-all target: route all unknown targets to Sphinx using the new
# "make mode" option.  $(O) is meant as a shortcut for $(SPHINXOPTS).
%: Makefile
	@$(SPHINXBUILD) -M $@ "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)