Custom error

.travis.yml

@@ -0,0 +1,6 @@
+language: go
+go_import_path: github.com/nuclio/nuclio-sdk
+go: 
+  - "1.8"
+  - "1.9"
+script: go test -v .

HACK.md

@@ -0,0 +1,6 @@
+# Hacking on nuclio-sdk
+
+## errors.go
+
+`errors.go` is automatically generated. If you bump Go version or suspect there
+might be changes, run `go generate` to generate it.

errgen.go

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+//go:generate go run gen_errors.go
+//go:generate go fmt errors.go
+
+package nuclio
+
+// This file exists only to generate errors.go
+// To do that - run: go generate