updates makefile

changes bash statically linked version
strips linux binary to reduce size #
detects if upx is installed and if so, compress to further reduce binary sizes

Makefile

@@ -1,6 +1,7 @@
 NAME=go-basher
 OWNER=progrium
 BASH_DIR=.bash
+BASH_STATIC_VERSION=5.0
 
 test:
 	go test -v
@@ -14,11 +15,18 @@ deps:
 bash:
 	# Don't run if you don't have to. Adds several megs to repo with every commit.
 	rm -rf $(BASH_DIR) && mkdir -p $(BASH_DIR)/linux $(BASH_DIR)/osx
-	curl -Ls https://github.com/robxu9/bash-static/releases/download/4.3.30/bash-linux \
-		> $(BASH_DIR)/linux/bash
-	curl -Ls https://github.com/robxu9/bash-static/releases/download/4.3.30/bash-osx \
+
+	curl -#SLk https://github.com/robxu9/bash-static/releases/download/$(BASH_STATIC_VERSION)/bash-linux \
+		> $(BASH_DIR)/linux/bash && strip $(BASH_DIR)/linux/bash
+
+	curl -#SLk https://github.com/robxu9/bash-static/releases/download/$(BASH_STATIC_VERSION)/bash-osx \
 		> $(BASH_DIR)/osx/bash
-	chmod +x $(BASH_DIR)/**/*
+
+	chmod +x $(BASH_DIR)/*/bash
+
+	# if upx is present, compress bash binaries
+	if [ `command -v upx` ]; then upx --8mib-ram --best --brute --ultra-brute -9 $(BASH_DIR)/*/bash; fi
+
 	go-bindata -tags=linux -o=bash_linux.go -prefix=$(BASH_DIR)/linux -pkg=basher $(BASH_DIR)/linux
 	go-bindata -tags=darwin -o=bash_darwin.go -prefix=$(BASH_DIR)/osx -pkg=basher $(BASH_DIR)/osx