buildcaddy.bash: Add build script

Author: joshix

buildcaddy.bash

@@ -0,0 +1,22 @@
+#!/bin/bash
+
+# Builds caddy binary for caddybox rootfs using caddy's build.go.
+#
+# Usage: ./buildcaddy.bash $tag (Ex: v0.10.11)
+# Assumes cwd is go/src/github.com/joshix/caddybox.
+
+tag=$1
+
+go get -u -v -d github.com/mholt/caddy
+go get -u -v github.com/caddyserver/builds
+cd ../../mholt/caddy
+git checkout master
+cd caddy
+go clean
+go get -u -v -d
+if [ "$tag" != '' ]
+  then
+    git checkout $tag
+fi
+go run build.go --goos linux --goarch amd64
+cp caddy ../../../joshix/caddybox/rootfs/bin/caddy