switched to go-mod, updated codegangsta/cli -> urfave/cli

vendor/github.com/hashicorp/go-multierror/.travis.yml

@@ -0,0 +1,12 @@
+sudo: false
+
+language: go
+
+go:
+  - 1.x
+
+branches:
+  only:
+    - master
+
+script: make test testrace

vendor/github.com/hashicorp/go-multierror/Makefile

@@ -0,0 +1,31 @@
+TEST?=./...
+
+default: test
+
+# test runs the test suite and vets the code.
+test: generate
+	@echo "==> Running tests..."
+	@go list $(TEST) \
+		| grep -v "/vendor/" \
+		| xargs -n1 go test -timeout=60s -parallel=10 ${TESTARGS}
+
+# testrace runs the race checker
+testrace: generate
+	@echo "==> Running tests (race)..."
+	@go list $(TEST) \
+		| grep -v "/vendor/" \
+		| xargs -n1 go test -timeout=60s -race ${TESTARGS}
+
+# updatedeps installs all the dependencies needed to run and build.
+updatedeps:
+	@sh -c "'${CURDIR}/scripts/deps.sh' '${NAME}'"
+
+# generate runs `go generate` to build the dynamically generated source files.
+generate:
+	@echo "==> Generating..."
+	@find . -type f -name '.DS_Store' -delete
+	@go list ./... \
+		| grep -v "/vendor/" \
+		| xargs -n1 go generate
+
+.PHONY: default test testrace updatedeps generate

vendor/github.com/hashicorp/go-multierror/README.md

@@ -1,5 +1,11 @@
 # go-multierror
 
+[![Build Status](http://img.shields.io/travis/hashicorp/go-multierror.svg?style=flat-square)][travis]
+[![Go Documentation](http://img.shields.io/badge/go-documentation-blue.svg?style=flat-square)][godocs]
+
+[travis]: https://travis-ci.org/hashicorp/go-multierror
+[godocs]: https://godoc.org/github.com/hashicorp/go-multierror
+
 `go-multierror` is a package for Go that provides a mechanism for
 representing a list of `error` values as a single `error`.
 

vendor/github.com/hashicorp/go-multierror/append.go

@@ -14,7 +14,20 @@ func Append(err error, errs ...error) *Error {
 			err = new(Error)
 		}
 
-		err.Errors = append(err.Errors, errs...)
+		// Go through each error and flatten
+		for _, e := range errs {
+			switch e := e.(type) {
+			case *Error:
+				if e != nil {
+					err.Errors = append(err.Errors, e.Errors...)
+				}
+			default:
+				if e != nil {
+					err.Errors = append(err.Errors, e)
+				}
+			}
+		}
+
 		return err
 	default:
 		newErrs := make([]error, 0, len(errs)+1)
@@ -23,8 +36,6 @@ func Append(err error, errs ...error) *Error {
 		}
 		newErrs = append(newErrs, errs...)
 
-		return &Error{
-			Errors: newErrs,
-		}
+		return Append(&Error{}, newErrs...)
 	}
 }

vendor/github.com/hashicorp/go-multierror/format.go

@@ -12,12 +12,16 @@ type ErrorFormatFunc func([]error) string
 // ListFormatFunc is a basic formatter that outputs the number of errors
 // that occurred along with a bullet point list of the errors.
 func ListFormatFunc(es []error) string {
+	if len(es) == 1 {
+		return fmt.Sprintf("1 error occurred:\n\t* %s\n\n", es[0])
+	}
+
 	points := make([]string, len(es))
 	for i, err := range es {
 		points[i] = fmt.Sprintf("* %s", err)
 	}
 
 	return fmt.Sprintf(
-		"%d error(s) occurred:\n\n%s",
-		len(es), strings.Join(points, "\n"))
+		"%d errors occurred:\n\t%s\n\n",
+		len(es), strings.Join(points, "\n\t"))
 }

vendor/github.com/hashicorp/go-multierror/go.mod

@@ -0,0 +1,3 @@
+module github.com/hashicorp/go-multierror
+
+require github.com/hashicorp/errwrap v1.0.0

vendor/github.com/hashicorp/go-multierror/go.sum

@@ -0,0 +1,4 @@
+github.com/hashicorp/errwrap v0.0.0-20141028054710-7554cd9344ce h1:prjrVgOk2Yg6w+PflHoszQNLTUh4kaByUcEWM/9uin4=
+github.com/hashicorp/errwrap v0.0.0-20141028054710-7554cd9344ce/go.mod h1:YH+1FKiLXxHSkmPseP+kNlulaMuP3n2brvKWEqk/Jc4=
+github.com/hashicorp/errwrap v1.0.0 h1:hLrqtEDnRye3+sgx6z4qVLNuviH3MR5aQ0ykNJa/UYA=
+github.com/hashicorp/errwrap v1.0.0/go.mod h1:YH+1FKiLXxHSkmPseP+kNlulaMuP3n2brvKWEqk/Jc4=

vendor/github.com/hashicorp/go-multierror/multierror.go

@@ -40,11 +40,11 @@ func (e *Error) GoString() string {
 }
 
 // WrappedErrors returns the list of errors that this Error is wrapping.
-// It is an implementatin of the errwrap.Wrapper interface so that
+// It is an implementation of the errwrap.Wrapper interface so that
 // multierror.Error can be used with that library.
 //
 // This method is not safe to be called concurrently and is no different
-// than accessing the Errors field directly. It is implementd only to
+// than accessing the Errors field directly. It is implemented only to
 // satisfy the errwrap.Wrapper interface.
 func (e *Error) WrappedErrors() []error {
 	return e.Errors

vendor/github.com/hashicorp/go-multierror/prefix.go

@@ -0,0 +1,37 @@
+package multierror
+
+import (
+	"fmt"
+
+	"github.com/hashicorp/errwrap"
+)
+
+// Prefix is a helper function that will prefix some text
+// to the given error. If the error is a multierror.Error, then
+// it will be prefixed to each wrapped error.
+//
+// This is useful to use when appending multiple multierrors
+// together in order to give better scoping.
+func Prefix(err error, prefix string) error {
+	if err == nil {
+		return nil
+	}
+
+	format := fmt.Sprintf("%s {{err}}", prefix)
+	switch err := err.(type) {
+	case *Error:
+		// Typed nils can reach here, so initialize if we are nil
+		if err == nil {
+			err = new(Error)
+		}
+
+		// Wrap each of the errors
+		for i, e := range err.Errors {
+			err.Errors[i] = errwrap.Wrapf(format, e)
+		}
+
+		return err
+	default:
+		return errwrap.Wrapf(format, err)
+	}
+}

vendor/github.com/hashicorp/go-multierror/sort.go

@@ -0,0 +1,16 @@
+package multierror
+
+// Len implements sort.Interface function for length
+func (err Error) Len() int {
+	return len(err.Errors)
+}
+
+// Swap implements sort.Interface function for swapping elements
+func (err Error) Swap(i, j int) {
+	err.Errors[i], err.Errors[j] = err.Errors[j], err.Errors[i]
+}
+
+// Less implements sort.Interface function for determining order
+func (err Error) Less(i, j int) bool {
+	return err.Errors[i].Error() < err.Errors[j].Error()
+}