Added changelogs generation tools.

docs/Makefile

@@ -0,0 +1,50 @@
+
+VER=	$(shell grep 'define NXT_VERSION' src/nxt_main.h		\
+		| sed -e 's/^.*"\(.*\)".*/\1/')
+UNIT=	unit-$(VER)
+DEST=	../build
+XSLS?=	xslscript.pl
+
+PACKAGES=	unit
+
+all:		changes changelogs
+
+changes:	$(DEST)/CHANGES
+
+changelogs:	$(addsuffix .rpm-changelog, $(addprefix $(DEST)/, $(PACKAGES))) \
+		$(addsuffix .deb-changelog, $(addprefix $(DEST)/, $(PACKAGES)))
+
+$(DEST)/CHANGES:		changes.dtd				\
+				changes.xml				\
+				change_log_conf.xml			\
+				changes.xslt
+
+	mkdir -p $(DEST)
+
+	xmllint --noout --valid changes.xml
+	xsltproc --stringparam format generic				\
+		-o $@ changes.xslt changes.xml
+
+$(DEST)/%.rpm-changelog:	changes.dtd 				\
+				changes.xml 				\
+				change_log_conf.xml 			\
+				changes.xslt
+	mkdir -p $(DEST)
+	xmllint --noout --valid changes.xml
+	xsltproc --stringparam pkgname $* --stringparam format rpm	\
+		-o $@ changes.xslt changes.xml
+
+$(DEST)/%.deb-changelog:	changes.dtd 				\
+				changes.xml 				\
+				change_log_conf.xml 			\
+				changes.xslt
+	mkdir -p $(DEST)
+	xmllint --noout --valid changes.xml
+	xsltproc --stringparam pkgname $* --stringparam format deb	\
+		-o $@ changes.xslt changes.xml
+
+changes.xslt:	changes.xsls
+	$(XSLS) -o $@ $<
+
+clean:
+	rm -rf $(DEST)