#
#  hardlinkedbackups - generates hardlinked incremental backups via rsync (and possibly through a SOCKS-tunnel via ssh)
#
#  Copyright (c) 2013-2016 Erich Eckner <opensource at eckner dot net>
#
#  This program is free software; you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation; either version 2 of the License, or
#  (at your option) any later version.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License
#  along with this program; if not, write to the Free Software
#  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
#  USA.
#

SHELL    = /bin/bash
DESTDIR	 =
ETCDIR   = /etc
BINDIR	 = /usr/bin
LIBDIR	 = /usr/lib
MANDIR	 = /usr/share/man

VERSION  = 2.1

all: man.commons \
 hardlinked-backup hardlinked-backup.1 \
 backup@.service backup@.timer \
 backup-progress \
 backup-statistics backup-statistics.1 \
 forwarddown forwarddown.1 \
 last-backups last-backups.1 \
 remove-old-backups.service remove-old-backups.timer \
 remove-old-backups remove-old-backups.1

%: %.in
	sed " \
		s/#VERSION#/$(VERSION)/; \
		s@#BINDIR#@$(BINDIR)@; \
		s@#ETCDIR#@$(ETCDIR)@; \
		s@#NUMSTAGES#@7@; \
		s@#HELPTEXT#\(\s\+\)#@  --help   \1display this help and exit\n  --version\1display version and exit@; \
		" $< > $@ && \
	( [[ "$@" = *.* ]] || chmod +x "$@" )

%.1: % man.commons
	grep -v "^$<(" man.commons | sed '/^\[SEE ALSO]$$/{n;:a;N;/\[/b;s/\n/, /;ta;}' > "$<.common" && \
	help2man -o "$@" -N --include $<.common --no-discard-stderr "./$<"

.PHONY:	install dist clean

install: all
	install -D -m0755 -t $(DESTDIR)$(BINDIR) backup-progress backup-statistics forwarddown hardlinked-backup last-backups remove-old-backups
	install -D -m0644 -t $(DESTDIR)$(LIBDIR)/systemd/system backup@.service backup@.timer remove-old-backups.service remove-old-backups.timer
	install -D -m0644 -t $(DESTDIR)$(MANDIR)/man1 backup-statistics.1 forwarddown.1 hardlinked-backup.1 last-backups.1 remove-old-backups.1
	install -D -m0644 -t $(DESTDIR)$(ETCDIR) backup.conf
	install -D -m0755 -T sendmailadvanced.hook $(DESTDIR)$(ETCDIR)/sendmailadvanced.hooks/last-backups

clean:
	git clean -x -d -f

dist: clean
	git status --porcelain 2> /dev/null | grep -q "\S" && (git add .; git commit -m"neue Version: $(VERSION)") || true
	! git tag -d v$(VERSION) 2> /dev/null
	git tag v$(VERSION)
	knock-knock || true
	git push
	git push --tags

# End of file