Rework build system

data/Makefile

@@ -0,0 +1,31 @@
+IP_DATA   = ../src/ip_data.c
+PROVIDERS = afrinic arin apnic lacnic ripencc
+DEST      = prefix_res_ipv4
+MD5 = $(addsuffix .md5,$(PROVIDERS))
+
+all: clean_md5 $(MD5) $(IP_DATA)
+
+clean_md5:
+	@rm -f $(MD5)
+
+$(PROVIDERS):
+	@$(foreach provider, $(PROVIDERS),\
+		wget "ftp://ftp.ripe.net/pub/stats/${provider}/delegated-${provider}-extended-latest" -O $(provider);)
+
+%.md5:%
+	@wget -q "ftp://ftp.ripe.net/pub/stats/$(basename $@)/delegated-$(basename $@)-extended-latest.md5" -O $@
+	@cat $@ | grep -oP '[0-9a-f]{32}' | tr -d '\n' > $@.tmp
+	@echo "  $(basename $@)" >> $@.tmp
+	@rm -f $@
+	@mv $@.tmp $@
+	@md5sum -c $@ || wget "ftp://ftp.ripe.net/pub/stats/$(basename $@)/delegated-$(basename $@)-extended-latest" -O $(basename $@) ; true
+
+$(DEST): $(PROVIDERS)
+	@cat $(PROVIDERS) | grep -v asn | grep -v summary | grep -v '#' | grep ipv4 | sort -n -k 4 -t '|' > $(DEST)
+
+$(IP_DATA): $(DEST)
+	@echo "Rebuild ip_data.c"
+	@./build_c_array.py > ../src/ip_data.c
+
+clean:
+	rm -f $(PROVIDERS) $(DEST) $(SHA1_FILE) $(MD5)

data/get_prefixs.sh

@@ -1,19 +0,0 @@
-#!/bin/bash
-
-PROVIDERS="afrinic arin apnic lacnic ripencc"
-DEST=prefix_res_ipv4
-SHA1_FILE=prefix_res_ipv4.sha1
-
-for provider in $PROVIDERS; do
-    wget "ftp://ftp.ripe.net/pub/stats/${provider}/delegated-${provider}-extended-latest" -O $provider
-done
-
-cat $PROVIDERS | grep -v asn | grep -v summary | grep -v '#' | grep ipv4 | sort -n -k 4 -t '|' > $DEST
-
-sha1sum -c $SHA1_FILE && exit
-
-sha1sum $DEST > $SHA1_FILE
-
-echo "Rebuild ip_data.c"
-
-./build_c_array.py > ../src/ip_data.c