-dss_objects := cmdline.o dss.o str.o file.o exec.o sig.o daemon.o df.o tv.o snap.o ipc.o
-all: dss
-man: dss.1
+# SPDX-License-Identifier: GPL-2.0
-DEBUG_CFLAGS ?=
-DEBUG_CFLAGS += -Wno-sign-compare -g -Wunused -Wundef -W
-DEBUG_CFLAGS += -Wredundant-decls
-CFLAGS ?=
-CFLAGS += -Os
-CFLAGS += -Wall
-CFLAGS += -Wuninitialized
-CFLAGS += -Wchar-subscripts
-CFLAGS += -Wformat-security
-CFLAGS += -Werror-implicit-function-declaration
-CFLAGS += -Wmissing-format-attribute
-CFLAGS += -Wunused-macros
-CFLAGS += -Wbad-function-cast
+PACKAGE := dss
+SLOGAN := the dyadic snapshot scheduler
+define DESCRIPTION1 :=
+ $(PACKAGE) maintains hardlink-based snapshots of a given directory on a
+ remote or local host using rsync's link-dest feature. The snapshots
+ are organized so that any snapshot can directly be deployed as an
+ (emergency) replacement for the primary system.
+endef
+define DESCRIPTION2 :=
+ $(PACKAGE) is admin friendly: It is easy to configure and needs little
+ attention after the initial setup. In particular, no full, incremental
+ or differential backups need to be configured, and there is no database
+ to maintain. $(PACKAGE) is also user-friendly: Assuming the snapshot server
+ allows read-only user access over the network, users can restore
+ accidentically removed files without admin intervention, using their
+ favorite file browser to copy files from the snapshot directory back
+ to the primary system.
+endef
+define DESCRIPTION3 :=
+ $(PACKAGE) keeps track of the age and the state of existing snapshots and
+ triggers snapshot creation and removal according to the configuration
+ settings. It tries to maintain a scheme where many recent snapshots
+ and few old snapshots exist, for example 16 snapshots newer than a
+ week, 8 snapshots between one and two weeks old, 4 snapshots between
+ two and three weeks old, and so on.
+endef
+AUTHOR := Andre Noll
+EMAIL := maan@tuebingen.mpg.de
+URL := https://people.tuebingen.mpg.de/maan/$(PACKAGE)/
+CLONE_URL := https://git.tuebingen.mpg.de/$(PACKAGE)
+GITWEB_URL := https://git.tuebingen.mpg.de/$(PACKAGE).git
+PACKAGE_HOMEPAGE := https://people.tuebingen.mpg.de/maan/$(PACKAGE)/
+HOME_URL := https://people.tuebingen.mpg.de/maan/
+LICENSE := GPL-2.0
+LICENSE_URL := https://www.gnu.org/licenses/
-Makefile.deps: $(wildcard *.c *.h)
- gcc -MM -MG *.c > $@
+PREFIX ?= /usr/local
+INSTALL ?= install
+INSTALL_PROGRAM ?= $(INSTALL)
+INSTALL_DATA ?= $(INSTALL) -m 644
+MKDIR_P := mkdir -p
+B := build
+VERSION := $(shell $(MKDIR_P) $(B) && ./version-gen.sh $(PACKAGE) $(B)/version.c)
+RM := rm -f
+LSG := lopsubgen
+GROFF := groff -m man -Thtml -P -l -P -r
+GZIP := gzip -cfn9
+GIT := git
+M4 := m4 \
+ -D "AUTHOR=$(AUTHOR)" \
+ -D "PACKAGE=$(PACKAGE)" \
+ -D "SLOGAN=$(SLOGAN)" \
+ -D "EMAIL=$(EMAIL)" \
+ -D "URL=$(URL)" \
+ -D "CLONE_URL=$(CLONE_URL)" \
+ -D "GITWEB_URL=$(GITWEB_URL)" \
+ -D "HOME_URL=$(HOME_URL)" \
+ -D "PACKAGE_HOMEPAGE=$(PACKAGE_HOMEPAGE)" \
+ -D "LICENSE=$(LICENSE)" \
+ -D "LICENSE_URL=$(LICENSE_URL)" \
+ -D "DESCRIPTION1=$(DESCRIPTION1)" \
+ -D "DESCRIPTION2=$(DESCRIPTION2)" \
+ -D "DESCRIPTION3=$(DESCRIPTION3)"
+c_source := $(PACKAGE) str file exec sig daemon df tv snap ipc
+c_generated := $(B)/$(PACKAGE).lsg $(B)/version
+objs := $(addsuffix .o, $(c_generated) $(addprefix $(B)/, $(c_source)))
+deps := $(objs:.o=.d)
+all := $(PACKAGE) $(PACKAGE).1.gz
+www := $(B)/index.html $(B)/$(PACKAGE).1.html
--include Makefile.deps
+all: $(all)
+www: $(www)
+man: $(PACKAGE).1.gz
+$(objs): $(B)/$(PACKAGE).lsg.h Makefile
+-include $(deps)
-dss: $(dss_objects)
- $(CC) -o $@ $(dss_objects)
+DSS_CPPFLAGS += -Wunused-macros
+DSS_CPPFLAGS += -I$(B)
-cmdline.o: cmdline.c cmdline.h
- $(CC) -c $(CFLAGS) $<
+DSS_CFLAGS := -Wno-sign-compare -g -Wunused -Wundef
+DSS_CFLAGS += -Wredundant-decls
+DSS_CFLAGS += -Os
+DSS_CFLAGS += -Wall
+DSS_CFLAGS += -Wuninitialized
+DSS_CFLAGS += -Wchar-subscripts
+DSS_CFLAGS += -Wformat-security
+DSS_CFLAGS += -Werror-implicit-function-declaration
+DSS_CFLAGS += -Wmissing-format-attribute
+DSS_CFLAGS += -Wunused-parameter
+DSS_CFLAGS += -Wbad-function-cast
+DSS_CFLAGS += -Wshadow
-%.o: %.c Makefile
- $(CC) -c $(CFLAGS) $(DEBUG_CFLAGS) $<
+CC_CMD = $(CC) -c -o $@ $(DSS_CPPFLAGS) $(CPPFLAGS) $(DSS_CFLAGS) $(CFLAGS) \
+ -MMD -MF $(B)/$(*F).d -MT $@ $<
-%.ppm: %.sk
- sk2ppm $< > $@
-%.png: %.ppm
- convert $< $@
+.ONESHELL:
+.SHELLFLAGS := -ec
+ifeq ("$(origin V)", "command line")
+ SAY =
+else
+ SAY = @printf '%s\n' '$(strip $(1))'
+endif
+$(B)/version.c:
+ $(call SAY, VG $@)
+ ./version-gen.sh $(PACKAGE) version.c > /dev/null
+$(PACKAGE): $(objs)
+ $(call SAY, LD $@)
+ $(CC) -o $@ $(objs) $(LDFLAGS) -llopsub
+$(B)/%.o: $(B)/%.c
+ $(call SAY, CC $<)
+ $(CC_CMD)
+$(B)/%.o: %.c
+ $(call SAY, CC $<)
+ $(CC_CMD)
-cmdline.c cmdline.h: dss.ggo
- gengetopt --conf-parser < $<
+.PHONY: all www clean distclean maintainer-clean install README
+.PRECIOUS: $(B)/%.lsg.c $(B)/%.lsg.h $(B)/%.suite $(B)/%.1
+$(B)/$(PACKAGE).suite: $(PACKAGE).suite.m4 Makefile
+ $(call SAY, M4 $<)
+ $(M4) $< > $@
+$(B)/%.lsg.h: $(B)/%.suite
+ $(call SAY, LSGH $<)
+ $(LSG) --gen-h=$@ < $<
+$(B)/%.lsg.c: $(B)/%.suite
+ $(call SAY, LSGC $<)
+ $(LSG) --gen-c=$@ < $<
+$(B)/%.1: $(B)/%.suite
+ $(call SAY, LSGM $<)
+ $(LSG) --gen-man=$@ --version-string=$(VERSION) < $<
+%.1.gz: $(B)/%.1
+ $(call SAY, GZIP $<)
+ $(GZIP) < $< > $@
+$(B)/%.1.html: $(B)/%.1
+ $(call SAY, GROFF $<)
+ $(GROFF) $< > $@
+$(B)/index.html: index.html.m4 Makefile
+ $(call SAY, M4 $@)
+ $(M4) $< > $@
+clean:
+ $(call SAY, CLEAN)
+ $(RM) $(B)/*.o $(B)/*.d $(all) $(www)
+distclean: clean
+ $(call SAY, DISTCLEAN)
+ $(RM) -r $(B)
+maintainer-clean: distclean
+ $(call SAY, MAINTANER-CLEAN)
+ $(GIT) clean -dfqxe Makefile.local
-dss.1: dss dss.1.inc
- help2man -h --detailed-help --include dss.1.inc -N ./$< > $@
+ifneq ($(findstring strip, $(MAKECMDGOALS)),)
+ strip_option := -s
+endif
+bindir := $(DESTDIR)$(PREFIX)/bin
+mandir := $(DESTDIR)$(PREFIX)/share/man/man1
+install install-strip: all
+ $(MKDIR_P) $(bindir) $(mandir)
+ $(INSTALL_PROGRAM) $(strip_option) $(PACKAGE) $(bindir)
+ $(INSTALL_DATA) $(PACKAGE).1.gz $(mandir)
-%.1.html: %.1
- man2html $< > $@
+define README :=
+$(PACKAGE) - $(SLOGAN)
-clean:
- rm -f *.o dss dss.1 dss.1.html Makefile.deps *.ppm *.png *~ cmdline.c cmdline.h index.html
-
-index.html: dss.1.html index.html.in INSTALL README NEWS
- sed -e '/@README@/,$$d' index.html.in > $@
- grutatxt -nb < README >> $@
- sed -e '1,/@README@/d' -e '/@NEWS@/,$$d' index.html.in >> $@
- grutatxt -nb < NEWS >> $@
- sed -e '1,/@NEWS@/d' -e '/@INSTALL@/,$$d' index.html.in >> $@
- grutatxt -nb < INSTALL >> $@
- sed -e '1,/@INSTALL@/d' -e '/@MAN_PAGE@/,$$d' index.html.in >> $@
- sed -e '1,/Return to Main Contents/d' -e '/Index/,$$d' dss.1.html >> $@
- sed -e '1,/@MAN_PAGE@/d' index.html.in >> $@
+$(DESCRIPTION1)
+
+$(DESCRIPTION2)
+
+$(DESCRIPTION3)
+
+Resources
+~~~~~~~~~
+web page: $(PACKAGE_HOMEPAGE)
+git clone URL: $(CLONE_URL)
+gitweb: $(GITWEB_URL)
+author home page: $(HOME_URL)
+report bugs to: $(AUTHOR) <$(EMAIL)>
+endef
+
+README:
+ @printf '%s\n' "$(README)"
+
+-include Makefile.local
projects / dss.git / blobdiff