configMap factory refactor for #86

pkg/commands/cmapflagsandargs.go

@@ -0,0 +1,50 @@
+/*
+Copyright 2018 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package commands
+
+import (
+	"fmt"
+)
+
+// cMapFlagsAndArgs encapsulates the options for add configmap commands.
+type cMapFlagsAndArgs struct {
+	// Name of configMap/Secret (required)
+	Name string
+	// FileSources to derive the configMap/Secret from (optional)
+	FileSources []string
+	// LiteralSources to derive the configMap/Secret from (optional)
+	LiteralSources []string
+	// EnvFileSource to derive the configMap/Secret from (optional)
+	// TODO: Rationalize this name with Generic.EnvSource
+	EnvFileSource string
+}
+
+// Validate validates required fields are set to support structured generation.
+func (a *cMapFlagsAndArgs) Validate(args []string) error {
+	if len(args) != 1 {
+		return fmt.Errorf("name must be specified once")
+	}
+	a.Name = args[0]
+	if len(a.EnvFileSource) == 0 && len(a.FileSources) == 0 && len(a.LiteralSources) == 0 {
+		return fmt.Errorf("at least from-env-file, or from-file or from-literal must be set")
+	}
+	if len(a.EnvFileSource) > 0 && (len(a.FileSources) > 0 || len(a.LiteralSources) > 0) {
+		return fmt.Errorf("from-env-file cannot be combined with from-file or from-literal")
+	}
+	// TODO: Should we check if the path exists? if it's valid, if it's within the same (sub-)directory?
+	return nil
+}