Bake hg version into install.rdf on XPI build. Warn users who are running in a testing branch.

--HG--
branch : groups

common/Makefile

@@ -32,7 +32,7 @@ CHROME	      = $(MANGLE)/
 JAR           = $(CHROME)$(NAME).jar
 
 XPI_BASES     = $(JAR_BASES) $(TOP)/..
-XPI_FILES     = bootstrap.js install.rdf TODO AUTHORS Donors NEWS LICENSE.txt
+XPI_FILES     = bootstrap.js TODO AUTHORS Donors NEWS LICENSE.txt
 XPI_DIRS      = components $(MANGLE) defaults
 XPI_TEXTS     = js jsm $(JAR_TEXTS)
 XPI_BINS      = $(JAR_BINS)
@@ -49,6 +49,9 @@ BUILD_DIR     = build.$(VERSION).$(OS)
 AWK       ?= awk
 B64ENCODE ?= base64
 CURL      ?= curl
+SED       := $(shell if [ "xoo" = x$$(echo foo | sed -E 's/f(o)/\1/' 2>/dev/null) ]; \
+		     then echo sed -E; else echo sed -r;			     \
+		     fi)
 
 .SILENT:
 
@@ -174,11 +177,19 @@ test: xpi
 xpi: $(CHROME)
 	@echo "Building XPI..."
 	mkdir -p "$(XPI_PATH)"
-
+	
 	$(AWK) -v 'name=$(NAME)' -v 'suffix=$(MANGLE)' \
 	       -f $(BASE)/process_manifest.awk \
-	       $(TOP)/chrome.manifest >"$(XPI_PATH)/chrome.manifest"
-
+	       "$(TOP)/chrome.manifest" >"$(XPI_PATH)/chrome.manifest"
+	
+	version="$(VERSION)"; 			\
+	hg root >/dev/null 2>&1 && 		\
+	case "$$version" in			\
+	*pre) version="$$version-hg$$(hg log -r . --template '{rev}')-$$(hg branch)";; \
+	esac; 					\
+	$(SED) -e 's/(em:version(>|="))([^"<]+)/\1'"$$version/" \
+		<"$(TOP)/install.rdf" >"$(XPI_PATH)/install.rdf"
+	
 	$(MAKE_JAR) "$(XPI)" "$(XPI_BASES)" "$(XPI_DIRS)" "$(XPI_TEXTS)" "$(XPI_BINS)" "$(XPI_FILES)"
 	rm -r -- $(CHROME)
 	@echo "Built XPI: $(XPI)"