Allow releses from HEAD

.goreleaser.yml

@@ -24,5 +24,24 @@ brew:
   folder: Formula
   homepage:  https://github.com/fastly/waflyctl
   description: Allows you to provision a Fastly waf object with pre-determine rules, OWASP config, response, and logging endpoints. Also manage rules, and their status.
+  custom_block: |
+    head do
+      url "https://github.com/fastly/waflyctl.git"
+      depends_on "dep" => :build
+      depends_on "go" => :build
+    end
+  install: |
+    def install
+      if build.head?
+        ENV["GOPATH"] = buildpath
+        (buildpath/"src/github.com/fastly/waflyctl").install buildpath.children
+        cd "src/github.com/fastly/waflyctl" do
+          system "dep", "ensure", "-vendor-only"
+          system "go", "build", "-o", buildpath/"waflyctl"
+        end
+      end
+
+      bin.install "waflyctl"
+    end
   test: |
     system "#{bin}/waflyctl"