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path: root/EndoForge/Makefile
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ENDOFORGE_BACKUPS = y
ifneq (,$(ENDOFORGE_BACKUPS))
SUFFIX := ~$(shell date -Ins | tr -d :)
INSTALL := install -b --suffix=$(SUFFIX)
MV := mv -b --suffix=$(SUFFIX)
else
INSTALL = install
MV = mv
endif

ifeq ($(shell id -u),0)
SUDO =
HAVE_ROOT = y
else
SUDO = sudo
HAVE_ROOT != sudo -v && echo y || true
endif

USER != echo "$${SUDO_USER:-$$(id -un)}"

BROWSER != 2>/dev/null which xdg-open || which w3m || which links || which elinks

SRC = src
SOURCE_NAMES = AnonymousAccessCommand sshd_config
SOURCES = $(addprefix $(SRC), $(SOURCE_NAMES))

.PHONY: install install-user install-user-config install-root shared doc test

doc: build/README.html $(SRC)/style.css
	install -m0644 $(SRC)/style.css -t build
	$(BROWSER) $<

shared: install
	git config core.self-forge true

install: $(if $(HAVE_ROOT), install-root, install-user)

install-user-config:
	install -d ~/.ssh
	install -t ~/.ssh $(SRC)/AnonymousAccessCommand

install-user: install-user-config build/sshd_config ~/.ssh/id_ed25519
	$(INSTALL) -m0644 -t ~/.ssh build/sshd_config
	$(INSTALL) -m0644 -t ~/.config/systemd/user $(SRC)/sshd.service
	systemctl --user daemon-reload
	systemctl --user enable sshd
	systemctl --user restart sshd

install-root: install-user-config
	$(SUDO) make -C ../OpenSSH_Anonymous_Access install

test:
	make -C test

build/sshd_config: $(SRC)/sshd_config Makefile
	install -d $(dir $@)
	$(edit_sshd) < "$<" > "$@".tmp
	mv "$@".tmp "$@"

KEYTYPE = ed25519
HOST_KEY_FILE = $(HOME)/.ssh/id_$(KEYTYPE)
SSHD_PID_FILE = $(HOME)/.ssh/sshd.pid
FORCE_COMMAND = $(HOME)/.ssh/AnonymousAccessCommand

$(HOST_KEY_FILE):
	ssh-keygen -t "$(KEYTYPE)" -P '' -f "$@"

define edit_sshd
sed \
		-e 's?ForceCommand=$$?&$(FORCE_COMMAND)?' \
		-e 's?AuthorizedKeysCommandUser=$$?&$(USER)?' \
		-e 's?HostKey=$$?&$(HOST_KEY_FILE)?' \
		-e 's?PidFile=$$?&$(SSHD_PID_FILE)?'
endef

build/README.html: README.md
	install -d $(dir $@)
	pandoc -s --css style.css -t html $< -o $@