Refactor set

- Implement inline setters as OpenAPI extensions
- Naming cleanup substitute -> set
- Documentation cleanup
- Simplify implementation

cmd/config/internal/commands/cmdset.go

@@ -0,0 +1,120 @@
+// Copyright 2019 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package commands
+
+import (
+	"fmt"
+
+	"github.com/olekukonko/tablewriter"
+	"github.com/spf13/cobra"
+	"sigs.k8s.io/kustomize/cmd/config/internal/generateddocs/commands"
+	"sigs.k8s.io/kustomize/kyaml/kio"
+	"sigs.k8s.io/kustomize/kyaml/setters"
+)
+
+// NewSetRunner returns a command runner.
+func NewSetRunner(parent string) *SetRunner {
+	r := &SetRunner{}
+	c := &cobra.Command{
+		Use:     "set DIR [NAME] [VALUE]",
+		Args:    cobra.RangeArgs(1, 3),
+		Short:   commands.SetShort,
+		Long:    commands.SetLong,
+		Example: commands.SetExamples,
+		PreRunE: r.preRunE,
+		RunE:    r.runE,
+	}
+	fixDocs(parent, c)
+	r.Command = c
+
+	return r
+}
+
+func SetCommand(parent string) *cobra.Command {
+	return NewSetRunner(parent).Command
+}
+
+type SetRunner struct {
+	Command *cobra.Command
+	Lookup  setters.LookupSetters
+	Perform setters.PerformSetters
+}
+
+func (r *SetRunner) preRunE(c *cobra.Command, args []string) error {
+	if len(args) > 1 {
+		r.Perform.Name = args[1]
+		r.Lookup.Name = args[1]
+	}
+	if len(args) > 2 {
+		r.Perform.Value = args[2]
+	}
+
+	return nil
+}
+
+func (r *SetRunner) runE(c *cobra.Command, args []string) error {
+
+	if len(args) == 3 {
+		return handleError(c, r.perform(c, args))
+	}
+
+	return handleError(c, r.lookup(c, args))
+}
+
+func (r *SetRunner) lookup(c *cobra.Command, args []string) error {
+	// lookup the setters
+	err := kio.Pipeline{
+		Inputs:  []kio.Reader{&kio.LocalPackageReader{PackagePath: args[0]}},
+		Filters: []kio.Filter{&r.Lookup},
+	}.Execute()
+	if err != nil {
+		return err
+	}
+
+	table := tablewriter.NewWriter(c.OutOrStdout())
+	table.SetRowLine(false)
+	table.SetBorder(false)
+	table.SetHeaderLine(false)
+	table.SetColumnSeparator(" ")
+	table.SetCenterSeparator(" ")
+	table.SetAlignment(tablewriter.ALIGN_LEFT)
+	table.SetHeader([]string{
+		"NAME", "DESCRIPTION", "VALUE", "TYPE", "COUNT", "SETBY",
+	})
+	for i := range r.Lookup.SetterCounts {
+		s := r.Lookup.SetterCounts[i]
+		v := s.Value
+		if s.Value == "" {
+			v = s.Value
+		}
+		table.Append([]string{
+			s.Name,
+			"'" + s.Description + "'",
+			v,
+			fmt.Sprintf("%v", s.Type),
+			fmt.Sprintf("%d", s.Count),
+			s.SetBy,
+		})
+	}
+	table.Render()
+	return nil
+}
+
+// perform the setters
+func (r *SetRunner) perform(c *cobra.Command, args []string) error {
+	rw := &kio.LocalPackageReadWriter{
+		PackagePath: args[0],
+	}
+	// perform the setters in the package
+	err := kio.Pipeline{
+		Inputs:  []kio.Reader{rw},
+		Filters: []kio.Filter{&r.Perform},
+		Outputs: []kio.Writer{rw},
+	}.Execute()
+	if err != nil {
+		return err
+	}
+	fmt.Fprintf(c.OutOrStdout(), "set %d fields\n", r.Perform.Count)
+	return nil
+}