Create Makefile for installation of helper-script

Makefile

@@ -0,0 +1,41 @@
+ifneq ($(USER),1)
+	PREFIX ?= /usr/local
+	MOZILLA_PREFIX ?= /usr
+	LIBDIR ?= /usr/lib64
+	MOZILLA_NATIVE ?= $(LIBDIR)/mozilla/native-messaging-hosts
+else
+	PREFIX ?= $(HOME)/.local
+	MOZILLA_NATIVE ?= $(HOME)/.mozilla/native-messaging-hosts
+endif
+
+LIBEXEC ?= $(PREFIX)/libexec
+
+.PHONY: all
+all:
+	@echo "No build step. Available targets:"
+	@echo "native-install          install native app"
+	@echo "native-uninstall        uninstall native app"
+	@echo "xpi                     create XPI webex archive"
+	@echo
+	@echo "Set USER=1 to target user directories instead."
+
+# make phony and don't depend on .in file in case $USER changes
+.PHONY: shellfox.sh.json
+shellfox.sh.json:
+	sed -e 's|@@NATIVE_PATH@@|$(LIBEXEC)/shellfox/shellfox.sh|' $@.in > $@
+
+.PHONY: native-install
+native-install: shellfox.sh.json
+	mkdir -p $(DESTDIR)$(MOZILLA_NATIVE)
+	cp -f shellfox.sh.json $(DESTDIR)$(MOZILLA_NATIVE)/shellfox.json
+	mkdir -p $(DESTDIR)$(LIBEXEC)/shellfox
+	cp -rf shellfox.sh  $(DESTDIR)$(LIBEXEC)/shellfox
+
+.PHONY: native-uninstall
+native-uninstall:
+	rm -f $(DESTDIR)$(MOZILLA_NATIVE)/shellfox.json
+	rm -rf $(DESTDIR)$(LIBEXEC)/shellfox
+
+.PHONY: xpi
+xpi:
+	@rm -f shellfox.xpi && zip -r shellfox.xpi background.js _locales/ manifest.json options.* res/*.png

shellfox.sh.json.in

@@ -1,7 +1,7 @@
 {
     "name": "shellfox",
     "description": "Edit text with an external editor.",
-    "path": "/usr/local/libexec/shellfox/shellfox.sh",
+    "path": "@@NATIVE_PATH@@",
     "type": "stdio",
     "allowed_extensions": [ "shellfox@xwx.moe" ]
 }