# Makefile - Main build script for sbc-harness project
#
# Copyright (C) 2024  Luke T. Shumaker <lukeshu@lukeshu.com>
# SPDX-Licence-Identifier: AGPL-3.0-or-later

linux.git = $(HOME)/src/github.com/torvalds/linux

all: build
.PHONY: all

.NOTINTERMEDIATE:
.DELETE_ON_ERROR:

################################################################################

generate/files =

generate/files += 3rd-party/linux-errno.txt
3rd-party/linux-errno.txt: %: %.gen
	./$< $(linux.git)

generate/files += lib9p/include/lib9p/linux-errno.h
lib9p/include/lib9p/linux-errno.h: %: %.gen 3rd-party/linux-errno.txt
	./$^ >$@

generate/files += lib9p/9p.generated.c lib9p/include/lib9p/9p.generated.h
lib9p/9p.generated.c lib9p/include/lib9p/9p.generated.h &: lib9p/idl.gen lib9p/idl/*.9p
	./$^

generate/files += libusb/include/libusb/tusb_helpers.h 3rd-party/MS-LCID.pdf 3rd-party/MS-LCID.txt
libusb/include/libusb/tusb_helpers.h 3rd-party/MS-LCID.pdf 3rd-party/MS-LCID.txt &: libusb/include/libusb/tusb_helpers.h.gen
	./$^

################################################################################

commands := $(patsubst cmd/%/CMakeLists.txt,%,$(wildcard cmd/*/CMakeLists.txt))
build: $(foreach c,$(commands),cmd/$c/build)
.PHONY: build

cmd/%/build: build/%/Makefile $(generate/files)
	$(MAKE) -C $(<D)
.PHONY: cmd/%/build
build/%/Makefile: cmd/%/CMakeLists.txt
	mkdir -p $(@D) && cd $(@D) && cmake -DCMAKE_BUILD_TYPE=Debug -D_UBUILD_CMD=$* $(shell if grep -q pico_sdk_init $<; then echo ' -D_UBUILD_USE_PICO_SDK=1 '; fi) ../..

generate: $(generate/files)
.PHONY: generate

generate-clean:
	rm -f -- $(generate/files)
.PHONY: generate-clean

sources_sh  = 3rd-party/linux-errno.txt.gen
sources_sh += libusb/include/libusb/tusb_helpers.h.gen
sources_py  = lib9p/idl.gen
sources_py += lib9p/include/lib9p/linux-errno.h.gen
lint:
	shellcheck $(sources_sh)
	mypy --strict --scripts-are-modules $(sources_py)
	black --check $(sources_py)
	isort --check $(sources_py)
	r=0; find $$(git ls-files -- $(foreach f,$(generate/files),:!$f) :!cmd/*/static/*) -maxdepth 0 -type f | while read -r filename; do \
	  grep -q 'Copyright (C) 2024  Luke T. Shumaker' $$filename || \
	    { echo "$$filename is missing a copyright statement"; r=1; continue; }; \
	  dscname=$$(sed -n '1,3{ /^#!/d; /^<!--$$/d; /-\*- .* -\*-/d; s,[/*# ]*,,; s/ - .*//;p; q; }' $$filename); \
	  filename_alt1=$$(echo "$$filename" | sed \
	    -e 's,^cmd/,,' \
	    -e 's,.*/include/,,' \
	    -e 's,^lib9p/idl/,,' \
	    -e 's/\.wip$$//'); \
	  filename_alt2=$$(echo "$$filename_alt1" | sed \
	    -e 's,^sbc_harness/,,' \
	    -e 's,^srv9p/,,'); \
	  [ "$$dscname" == "$$filename" ] || [ "$$dscname" == "$$filename_alt1" ] || [ "$$dscname" == "$$filename_alt2" ] || \
	    { echo "$$filename self-identifies as $$dscname"; r=1; continue; }; \
	done; exit $$r
format:
	black $(sources_py)
	isort $(sources_py)
.PHONY: lint format