Merge of r5130, r5131, r5132: support for Mercurial repositories.

*) Misc: switch to single export operation in "zip" target.

   While exporting parts of the tree might be better in some cases, it
   is awfully slow overseas, and also requires unlocking ssh key multiple
   times.  Exporting the whole repo and removing directories not needed for
   zip is faster here.

   It is also a required step before we can switch to Mercurial.

*) Misc: removed unused "snapshot" target.

*) Misc: support for Mercurial repositories.
diff --git a/misc/GNUmakefile b/misc/GNUmakefile
index 19a7750..5982aca 100644
--- a/misc/GNUmakefile
+++ b/misc/GNUmakefile
@@ -11,10 +11,7 @@
 PCRE =		pcre-8.32
 
 
-release:
-	rm -rf $(TEMP)
-
-	svn export -rHEAD . $(TEMP)/$(NGINX)
+release: export
 
 	mv $(TEMP)/$(NGINX)/auto/configure $(TEMP)/$(NGINX)
 
@@ -39,7 +36,32 @@
 	tar -c -z -f $(NGINX).tar.gz --directory $(TEMP) $(NGINX)
 
 
+export:
+	rm -rf $(TEMP)
+
+	if [ -d .svn ]; then						\
+		svn export -rHEAD . $(TEMP)/$(NGINX);			\
+	else								\
+		hg archive -X '.hg*' $(TEMP)/$(NGINX);			\
+	fi
+
+
 RELEASE:
+	if [ -d .svn ]; then						\
+		$(MAKE) -f misc/GNUmakefile RELEASE.svn;		\
+	else								\
+		$(MAKE) -f misc/GNUmakefile RELEASE.hg;			\
+	fi
+
+	$(MAKE) -f misc/GNUmakefile release
+
+
+RELEASE.hg:
+	hg ci -m nginx-$(VER)-RELEASE
+	hg tag -m "release-$(VER) tag" release-$(VER)
+
+	
+RELEASE.svn:
 	test -d $(TEMP) || mkdir -p $(TEMP)
 
 	echo "nginx-$(VER)-RELEASE" > $(TEMP)/message
@@ -52,36 +74,6 @@
 
 	svn up
 
-	$(MAKE) -f misc/GNUmakefile release
-
-
-snapshot:
-	rm -rf $(TEMP)
-
-	mkdir -p $(TEMP)
-	svn export . $(TEMP)/$(NGINX)
-
-	mv $(TEMP)/$(NGINX)/auto/configure $(TEMP)/$(NGINX)
-
-	# delete incomplete sources
-	rm $(TEMP)/$(NGINX)/src/event/ngx_event_acceptex.c
-	rm $(TEMP)/$(NGINX)/src/event/ngx_event_connectex.c
-	rm $(TEMP)/$(NGINX)/src/event/modules/ngx_iocp_module.*
-	rm -r $(TEMP)/$(NGINX)/src/os/win32
-
-	rm -r $(TEMP)/$(NGINX)/src/mysql
-
-	mv $(TEMP)/$(NGINX)/docs/text/LICENSE $(TEMP)/$(NGINX)
-	mv $(TEMP)/$(NGINX)/docs/text/README $(TEMP)/$(NGINX)
-	mv $(TEMP)/$(NGINX)/docs/html $(TEMP)/$(NGINX)
-	mv $(TEMP)/$(NGINX)/docs/man $(TEMP)/$(NGINX)
-
-	$(MAKE) -f docs/GNUmakefile changes
-
-	rm -r $(TEMP)/$(NGINX)/docs
-	rm -r $(TEMP)/$(NGINX)/misc
-
-	tar -c -z -f $(NGINX).tar.gz --directory $(TEMP) $(NGINX)
 
 win32:
 	./auto/configure						\
@@ -120,26 +112,26 @@
 		--with-mail_ssl_module					\
 		--with-ipv6
 
-zip:
-	rm -rf $(TEMP)
+
+zip: export
 	rm -f $(NGINX).zip
 
-	mkdir -p $(TEMP)/$(NGINX)/docs
+	mkdir -p $(TEMP)/$(NGINX)/docs.new
 	mkdir -p $(TEMP)/$(NGINX)/logs
 	mkdir -p $(TEMP)/$(NGINX)/temp
 
-	svn export -rHEAD conf $(TEMP)/$(NGINX)/conf/
 	sed -i '' -e "s/$$/`printf '\r'`/" $(TEMP)/$(NGINX)/conf/*
 
-	svn export -rHEAD contrib $(TEMP)/$(NGINX)/contrib/
-	svn export -rHEAD docs/html $(TEMP)/$(NGINX)/html/
+	mv $(TEMP)/$(NGINX)/docs/text/LICENSE $(TEMP)/$(NGINX)/docs.new
+	mv $(TEMP)/$(NGINX)/docs/text/README $(TEMP)/$(NGINX)/docs.new
+	mv $(TEMP)/$(NGINX)/docs/html $(TEMP)/$(NGINX)
 
-	$(MAKE) -f docs/GNUmakefile changes
+	rm -r $(TEMP)/$(NGINX)/docs
+	mv $(TEMP)/$(NGINX)/docs.new $(TEMP)/$(NGINX)/docs
 
 	cp -p $(OBJS)/nginx.exe $(TEMP)/$(NGINX)
 
-	cp -p docs/text/LICENSE $(TEMP)/$(NGINX)/docs/
-	cp -p docs/text/README $(TEMP)/$(NGINX)/docs/
+	$(MAKE) -f docs/GNUmakefile changes
 	mv $(TEMP)/$(NGINX)/CHANGES* $(TEMP)/$(NGINX)/docs/
 
 	cp -p $(OBJS)/lib/$(OPENSSL)/LICENSE				\
@@ -155,6 +147,10 @@
 	touch -r $(OBJS)/lib/$(ZLIB)/README				\
 		$(TEMP)/$(NGINX)/docs/zlib.LICENSE
 
+	rm -r $(TEMP)/$(NGINX)/auto
+	rm -r $(TEMP)/$(NGINX)/misc
+	rm -r $(TEMP)/$(NGINX)/src
+
 	cd $(TEMP) && zip -r ../$(NGINX).zip $(NGINX)