+.PHONY: all install force clean index tags $(subdirs)
+
+#################### devel tools
+tags:
+ find . '(' -name '*.py' -o -name '*.sql' -o -name '*.php' -o -name Makefile ')' | xargs etags
+
+.PHONY: tags
+
+########## sync
+# 2 forms are supported
+# (*) if your plc root context has direct ssh access:
+# make sync PLC=private.one-lab.org
+# (*) otherwise, entering through the root context
+# make sync PLCHOST=testplc.onelab.eu GUEST=vplc03.inria.fr
+
+PLCHOST ?= testplc.onelab.eu
+
+ifdef GUEST
+SSHURL:=root@$(PLCHOST):/vservers/$(GUEST)
+SSHCOMMAND:=ssh root@$(PLCHOST) vserver $(GUEST)
+endif
+ifdef PLC
+SSHURL:=root@$(PLC):/
+SSHCOMMAND:=ssh root@$(PLC)
+endif
+
+LOCAL_RSYNC_EXCLUDES := --exclude '*.pyc'
+RSYNC_EXCLUDES := --exclude .svn --exclude CVS --exclude '*~' --exclude TAGS $(LOCAL_RSYNC_EXCLUDES)
+RSYNC_COND_DRY_RUN := $(if $(findstring n,$(MAKEFLAGS)),--dry-run,)
+RSYNC := rsync -a -v $(RSYNC_COND_DRY_RUN) $(RSYNC_EXCLUDES)
+
+sync:
+ifeq (,$(SSHURL))
+ @echo "sync: You must define, either PLC, or PLCHOST & GUEST, on the command line"
+ @echo " e.g. make sync PLC=boot.planetlab.eu"
+ @echo " or make sync PLCHOST=testplc.onelab.eu GUEST=vplc03.inria.fr"
+ @exit 1
+else
+ +$(RSYNC) plcsh PLC planetlab5.sql migrations $(SSHURL)/usr/share/plc_api/
+ +$(RSYNC) db-config.d/ $(SSHURL)/etc/planetlab/db-config.d/
+ +$(RSYNC) plc.d/ $(SSHURL)/etc/plc.d/
+ $(SSHCOMMAND) exec apachectl graceful
+endif
+
+#################### convenience, for debugging only
+# make +foo : prints the value of $(foo)
+# make ++foo : idem but verbose, i.e. foo=$(foo)
+++%: varname=$(subst +,,$@)
+++%:
+ @echo "$(varname)=$($(varname))"
++%: varname=$(subst +,,$@)
++%:
+ @echo "$($(varname))"
+