Makefile for creating xpis for each platforms.

The part of extracting the version number from manifest.json refered to a
post [1] in Stack Overflow.

[1] https://stackoverflow.com/questions/1955505/parsing-json-with-unix-tools#comment42500081_1955505

.gitignore

@@ -0,0 +1 @@
+*.xpi

Makefile

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+ARCHS=linux linux64 mac64 win32
+MANIFEST=manifest.json
+
+VERSION=`grep -Eo '"version"\:\s*"[^"]+' $(MANIFEST) | grep -Eo '[0-9].*'`
+
+define build-xpis
+	for arch in $(ARCHS); do \
+		echo "build $$arch-$(VERSION).xpi"; \
+		rm -f $$arch.xpi; \
+		zip $$arch-$(VERSION).xpi -r $$arch adb.json $(MANIFEST); \
+	done
+endef
+
+package:
+	@$(call build-xpis)
+
+clean:
+	rm -f *.xpi