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# Copyright 2018 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# enabled collectors
COLLECTORS =
COLLECTORS += conntrack
COLLECTORS += cpu
COLLECTORS += diskstats
COLLECTORS += filesystem
COLLECTORS += filefd
COLLECTORS += hwmon
COLLECTORS += mdstat
COLLECTORS += meminfo
COLLECTORS += netdev
COLLECTORS += loadavg
COLLECTORS += rapl
COLLECTORS += stat
COLLECTORS += textfile
COLLECTORS += timex
COLLECTORS += uname
COLLECTORS += vmstat
# compile settings
CFLAGS = -std=c11 -Wall -Wextra -pedantic -Wno-format-truncation $(if $(DEBUG),-g,-Os)
LDFLAGS = $(if $(DEBUG),-g,-Os -s)
# build rules
PROG = nano-exporter
SRCS = main.c scrape.c util.c $(foreach c,$(COLLECTORS),$(c).c)
OBJS = $(patsubst %.c,%.o,$(SRCS))
DEPDIR := .d
$(shell mkdir -p $(DEPDIR) >/dev/null)
DEPFLAGS = -MT $@ -MMD -MP -MF $(DEPDIR)/$*.Td
all: $(PROG)
.PHONY: all
$(PROG): $(OBJS)
$(CC) -o $@ $^ $(LDFLAGS) $(LDLIBS)
%.o : %.c
%.o : %.c $(DEPDIR)/%.d
$(CC) $(DEPFLAGS) $(CFLAGS) $(CPPFLAGS) -c -o $@ $<
@mv -f $(DEPDIR)/$*.Td $(DEPDIR)/$*.d && touch $@
main.o: main.c $(DEPDIR)/main.d
$(CC) $(DEPFLAGS) $(CFLAGS) $(CPPFLAGS) -DXCOLLECTORS="$(foreach c,$(COLLECTORS),X($(c)))" -c -o $@ $<
@mv -f $(DEPDIR)/$*.Td $(DEPDIR)/$*.d && touch $@
# tests
.PHONY: test
test:
$(MAKE) -C test run_all
# make clean
.PHONY: clean
clean:
$(RM) $(PROG) $(OBJS)
$(RM) -r $(DEPDIR)
$(MAKE) -C test clean
# release workflow
TARBALL_COMMIT ?= HEAD
TARBALL_SUFFIX ?= $(shell git describe --always --tags --match 'v*' $(TARBALL_COMMIT) | sed -e 's/^v//')
.PHONY: tarball
tarball:
git archive --format=tar --prefix=nano-exporter-$(TARBALL_SUFFIX)/ $(TARBALL_COMMIT) | gzip -c -9 > nano-exporter-$(TARBALL_SUFFIX).tar.gz
# dependencies
$(DEPDIR)/%.d: ;
.PRECIOUS: $(DEPDIR)/%.d
include $(wildcard $(patsubst %,$(DEPDIR)/%.d,$(basename $(SRCS))))
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