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# SPDX-FileCopyrightText: 2021 Yoran Heling <projects@yorhel.nl>
# SPDX-License-Identifier: MIT

# Optional semi-standard Makefile with some handy tools.
# Ncdu itself can be built with just the zig build system.

PREFIX ?= /usr/local
BINDIR ?= ${PREFIX}/bin
MANDIR ?= ${PREFIX}/share/man/man1
ZIG_FLAGS ?= -Drelease-fast

NCDU_VERSION=$(shell grep 'program_version = "' src/main.zig | sed -e 's/^.*"\(.\+\)".*$$/\1/')

release:
	zig build ${ZIG_FLAGS}

debug:
	zig build

clean:
	rm -rf zig-cache zig-out

distclean: clean
	rm -f ncdu.1

doc: ncdu.1

ncdu.1: ncdu.pod src/main.zig
	pod2man --center "ncdu manual" --release "ncdu-${NCDU_VERSION}" ncdu.pod >ncdu.1

install: install-bin install-doc

install-bin: release
	mkdir -p ${BINDIR}
	install -m0755 zig-out/bin/ncdu ${BINDIR}/

install-doc: doc
	mkdir -p ${MANDIR}
	install -m0644 ncdu.1 ${MANDIR}/

uninstall: uninstall-bin uninstall-doc

# XXX: Ideally, these would also remove the directories created by 'install' if they are empty.
uninstall-bin:
	rm -f ${BINDIR}/ncdu

uninstall-doc:
	rm -f ${MANDIR}/ncdu.1

dist: doc
	rm -f ncdu-${NCDU_VERSION}.tar.gz
	mkdir ncdu-${NCDU_VERSION}
	for f in ncdu.1 `git ls-files | grep -v ^\.gitignore`; do mkdir -p ncdu-${NCDU_VERSION}/`dirname $$f`; ln -s "`pwd`/$$f" ncdu-${NCDU_VERSION}/$$f; done
	tar -cophzf ncdu-${NCDU_VERSION}.tar.gz --sort=name ncdu-${NCDU_VERSION}
	rm -rf ncdu-${NCDU_VERSION}


# ASSUMPTION: the ncurses source tree has been extracted into ncurses/
static-%.tar.gz:
	mkdir -p static-$*/nc static-$*/inst/pkg
	cd static-$*/nc && ../../ncurses/configure --prefix="`pwd`/../inst"\
		--with-pkg-config-libdir="`pwd`/../inst/pkg"\
		--without-cxx --without-cxx-binding --without-ada --without-manpages --without-progs\
		--without-tests --enable-pc-files --without-pkg-config --without-shared --without-debug\
		--without-gpm --without-sysmouse --enable-widec --with-default-terminfo-dir=/usr/share/terminfo\
		--with-terminfo-dirs=/usr/share/terminfo:/lib/terminfo:/usr/local/share/terminfo\
		--with-fallbacks="screen linux vt100 xterm xterm-256color" --host=$*\
		CC="zig cc --target=$*"\
		LD="zig cc --target=$*"\
		AR="zig ar" RANLIB="zig ranlib"\
		CPPFLAGS=-D_GNU_SOURCE && make && make install.libs
	@# zig-build - cleaner approach but doesn't work, results in a dynamically linked binary.
	@#cd static-$* && PKG_CONFIG_LIBDIR="`pwd`/inst/pkg" zig build -Dtarget=$*
	@#	--build-file ../build.zig --search-prefix inst/ --cache-dir zig -Drelease-fast=true
	@# Alternative approach, bypassing zig-build
	cd static-$* && zig build-exe -target $*\
		-Iinst/include -Iinst/include/ncursesw -lc inst/lib/libncursesw.a\
		--cache-dir zig-cache -static --strip -O ReleaseFast ../src/main.zig ../src/ncurses_refs.c
	cd static-$* && mv main ncdu && tar -czf ../static-$*.tar.gz ncdu
	rm -rf static-$*

static-linux-x86_64: static-x86_64-linux-musl.tar.gz
	mv $< ncdu-${NCDU_VERSION}-linux-x86_64.tar.gz

static-linux-i386: static-i386-linux-musl.tar.gz
	mv $< ncdu-${NCDU_VERSION}-linux-i386.tar.gz

static-linux-aarch64: static-aarch64-linux-musl.tar.gz
	mv $< ncdu-${NCDU_VERSION}-linux-aarch64.tar.gz

static-linux-arm: static-arm-linux-musleabi.tar.gz
	mv $< ncdu-${NCDU_VERSION}-linux-arm.tar.gz

static:\
	static-linux-x86_64 \
	static-linux-i386 \
	static-linux-aarch64 \
	static-linux-arm