SRC_DIR 	:= ./src
DOCS_DIR 	:= ./docs
TESTS_DIR 	:= ./tests
BUILD_DIR 	:= ./dist

.PHONY: help tests manpages install uninstall fixpath

all: help

help:
	@echo 'Usage:  make TARGET'
	@echo '	make prefix=/path install'
	@echo '	make prefix=/path uninstall'
	@echo
	@echo Available targets:
	@echo
	@echo '	help		print this help message'
	@echo '	tests		run tests from $(TESTS_DIR)'
	@echo '	lint		run shellcheck'
	@echo '	manpages	build manual pages from $(DOCS_DIR)'
	@echo '	install		install boring_backup with prefix'
	@echo '	uninstall	uninstall boring_backup with prefix'
	@echo
	@echo 'prefix examples: $$HOME/.local, /usr/local, /usr/bin'
	@echo See README for more info.

tests:
	# See bats(1), https://bats-core.readthedocs.io/en/latest/index.html
	for test in $(TESTS_DIR)/*.bats; do \
		bats --verbose-run --print-output-on-failure "$$test"; \
	done

lint:
	shellcheck $(SRC_DIR)/boring_backup
	shellcheck $(SRC_DIR)/lib/*.sh
	shellcheck $(SRC_DIR)/lib/handlers/sources/*.sh
	shellcheck $(SRC_DIR)/lib/handlers/targets/*.sh

manpages:
	mkdir -pv $(BUILD_DIR)/share/man/ru/man1
	# See rst2man(1)
	# https://docutils.sourceforge.io/docs/index.html
	rst2man -v $(DOCS_DIR)/manpages/boring_backup.ru.1.rst \
		> $(BUILD_DIR)/share/man/ru/man1/boring_backup.1
	sed -e 's/.SH NAME/.SH ИМЯ/' \
		-e 's/.SH AUTHOR/.SH АВТОРЫ/' \
		-e 's/.SH COPYRIGHT/.SH АВТОРСКИЕ ПРАВА/' \
		-i $(BUILD_DIR)/share/man/ru/man1/boring_backup.1
	gzip -vf9 $(BUILD_DIR)/share/man/ru/man1/boring_backup.1

html: manpages
	mkdir -p $(BUILD_DIR)/share/doc/boring_backup
	zcat $(BUILD_DIR)/share/man/ru/man1/boring_backup.1.gz | \
		groff -man -Kutf8 -Thtml \
		> $(BUILD_DIR)/share/doc/boring_backup/boring_backup.1.html 2>/dev/null
	rm -v grohtml-*.png

install: html
	@echo prefix: $$prefix
	install -Dm755 $(SRC_DIR)/boring_backup $$prefix/bin/boring_backup
	install -Dm644 $(SRC_DIR)/lib/lib.sh $$prefix/share/boring_backup/lib.sh
	install -Dm644 $(SRC_DIR)/lib/backup.sh $$prefix/share/boring_backup/backup.sh
	install -Dm644 $(SRC_DIR)/lib/common.sh $$prefix/share/boring_backup/common.sh
	install -Dm644 $(SRC_DIR)/lib/source.sh $$prefix/share/boring_backup/source.sh
	install -Dm644 $(SRC_DIR)/lib/uri.sh $$prefix/share/boring_backup/uri.sh
	install -Dm644 $(SRC_DIR)/lib/handlers/sources/tar.sh $$prefix/share/boring_backup/handlers/sources/tar.sh
	install -Dm644 $(SRC_DIR)/lib/handlers/sources/mysqldump.sh $$prefix/share/boring_backup/handlers/sources/mysqldump.sh
	install -Dm644 $(SRC_DIR)/lib/handlers/sources/pg_dump.sh $$prefix/share/boring_backup/handlers/sources/pg_dump.sh
	install -Dm644 $(SRC_DIR)/lib/handlers/targets/cp.sh $$prefix/share/boring_backup/handlers/targets/cp.sh
	install -Dm644 $(SRC_DIR)/lib/handlers/targets/s3cmd.sh $$prefix/share/boring_backup/handlers/targets/s3cmd.sh
	sed -e "s%LIBRARY=\"\$${LIBRARY:-.\/lib}\"%LIBRARY=\"\$${LIBRARY:-$$prefix\/share\/boring_backup}\"%" \
		-i $$prefix/share/boring_backup/lib.sh \
		-i $$prefix/bin/boring_backup
	sed -e "s%log_file=\"\$${log_file:-.\/log.txt}\"%log_file=\"\$${log_file:-\/var\/log\/boring_backup.log}\"%g" \
		-i $$prefix/bin/boring_backup
	install -Dm664 $(SRC_DIR)/completion $$prefix/share/bash-completion/completions/boring_backup
	install -Dm664 $(BUILD_DIR)/share/man/ru/man1/boring_backup.1.gz $$prefix/share/man/ru/man1/boring_backup.1.gz
	install -Dm644 $(BUILD_DIR)/share/doc/boring_backup/boring_backup.1.html $$prefix/share/doc/boring_backup/boring_backup.1.html

uninstall:
	@echo prefix: $$prefix
	rm $$prefix/bin/boring_backup
	rm $$prefix/share/boring_backup/lib.sh
	rm $$prefix/share/boring_backup/backup.sh
	rm $$prefix/share/boring_backup/common.sh
	rm $$prefix/share/boring_backup/source.sh
	rm $$prefix/share/boring_backup/uri.sh
	rm $$prefix/share/boring_backup/handlers/sources/tar.sh
	rm $$prefix/share/boring_backup/handlers/sources/mysqldump.sh
	rm $$prefix/share/boring_backup/handlers/sources/pg_dump.sh
	rm $$prefix/share/boring_backup/handlers/targets/cp.sh
	rm $$prefix/share/boring_backup/handlers/targets/s3cmd.sh
	rm -rv $$prefix/share/boring_backup
	rm $$prefix/share/man/ru/man1/boring_backup.1.gz
	rm $$prefix/share/doc/boring_backup/boring_backup.1.html
	rm $$prefix/share/bash-completion/completions/boring_backup

fixpath:
	# Set boring_backup library path
	@echo prefix: $$prefix
	@echo path: $$path
	sed -e "s%LIBRARY=\"\$${LIBRARY:-$$prefix\/share\/boring_backup}\"%LIBRARY=\"\$${LIBRARY:-$$path}\"%" \
		-i $$prefix/share/boring_backup/lib.sh \
		-i $$prefix/bin/boring_backup

deb:
	test -d $(BUILD_DIR) && rm -rf $(BUILD_DIR) || true
	make prefix=$(BUILD_DIR)/usr install
	make prefix=$(BUILD_DIR)/usr path=/usr/share/boring_backup fixpath
	install -Dm644 control $(BUILD_DIR)/DEBIAN/control
	install -Dm644 copyright $(BUILD_DIR)/DEBIAN/copyright
	install -Dm644 CHANGELOG $(BUILD_DIR)/DEBIAN/changelog
	rm -rfv $(BUILD_DIR)/share
	mkdir -p debian
	version=$$(src/boring_backup -V) && dpkg-deb --build $(BUILD_DIR) debian/boring-backup_$$version.deb