[proxmox] Adds proxmox fixer and fixer test

Add fixer for proxmox to proxmox-iso. Updated gofmt.

builder/proxmox/builder.go

@@ -4,4 +4,4 @@ import (
 	"github.com/hashicorp/packer/builder/proxmox/iso"
 )
 
-type Builder  = proxmoxiso.Builder
+type Builder = proxmoxiso.Builder

fix/fixer_proxmox_type.go

@@ -0,0 +1,49 @@
+package fix
+
+import (
+	"github.com/mitchellh/mapstructure"
+)
+
+// FixerProxmoxType updates proxmox builder types to proxmox-iso
+type FixerProxmoxType struct{}
+
+func (FixerProxmoxType) DeprecatedOptions() []string {
+	return []string{}
+}
+
+func (FixerProxmoxType) Fix(input map[string]interface{}) (map[string]interface{}, error) {
+	type template struct {
+		Builders []map[string]interface{}
+	}
+
+	// Decode the input into our structure, if we can
+	var tpl template
+	if err := mapstructure.Decode(input, &tpl); err != nil {
+		return nil, err
+	}
+
+	for _, builder := range tpl.Builders {
+		builderTypeRaw, ok := builder["type"]
+		if !ok {
+			continue
+		}
+
+		builderType, ok := builderTypeRaw.(string)
+		if !ok {
+			continue
+		}
+
+		if builderType != "proxmox" {
+			continue
+		}
+
+		builder["type"] = "proxmox-iso"
+	}
+
+	input["builders"] = tpl.Builders
+	return input, nil
+}
+
+func (FixerProxmoxType) Synopsis() string {
+	return `Updates the builder type proxmox to proxmox-iso`
+}

fix/fixer_proxmox_type_test.go

@@ -0,0 +1,73 @@
+package fix
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestFixerProxmoxType_Impl(t *testing.T) {
+	var raw interface{}
+	raw = new(FixerProxmoxType)
+	if _, ok := raw.(Fixer); !ok {
+		t.Fatalf("must be a Fixer")
+	}
+}
+
+func TestFixerProxmoxType_Fix(t *testing.T) {
+
+	cases := []struct {
+		Input    map[string]interface{}
+		Expected map[string]interface{}
+	}{
+
+		{
+			Input: map[string]interface{}{
+				"type": "proxmox",
+			},
+
+			Expected: map[string]interface{}{
+				"type": "proxmox-iso",
+			},
+		},
+
+		{
+			Input: map[string]interface{}{
+				"type": "proxmox-iso",
+			},
+
+			Expected: map[string]interface{}{
+				"type": "proxmox-iso",
+			},
+		},
+
+		{
+			Input: map[string]interface{}{
+				"type": "proxmox-clone",
+			},
+
+			Expected: map[string]interface{}{
+				"type": "proxmox-clone",
+			},
+		},
+	}
+
+	for _, tc := range cases {
+		var f FixerProxmoxType
+
+		input := map[string]interface{}{
+			"builders": []map[string]interface{}{tc.Input},
+		}
+
+		expected := map[string]interface{}{
+			"builders": []map[string]interface{}{tc.Expected},
+		}
+
+		output, err := f.Fix(input)
+		if err != nil {
+			t.Fatalf("err: %s", err)
+		}
+
+		assert.Equal(t, expected, output, "Should be equal")
+	}
+}