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// Copyright 2019 The Kubernetes Authors.
// SPDX-License-Identifier: Apache-2.0
package commands
import (
"path/filepath"
"strings"
"sigs.k8s.io/kustomize/cmd/config/ext"
"sigs.k8s.io/kustomize/cmd/config/internal/generateddocs/commands"
"sigs.k8s.io/kustomize/cmd/config/runner"
"sigs.k8s.io/kustomize/kyaml/kio/filters"
"github.com/spf13/cobra"
"sigs.k8s.io/kustomize/kyaml/kio"
"sigs.k8s.io/kustomize/kyaml/yaml"
)
func GetTreeRunner(name string) *TreeRunner {
r := &TreeRunner{}
c := &cobra.Command{
Use: "tree [DIR]",
Short: commands.TreeShort,
Long: commands.TreeLong,
Example: commands.TreeExamples,
RunE: r.runE,
Args: cobra.MaximumNArgs(1),
}
runner.FixDocs(name, c)
// TODO(pwittrock): Figure out if these are the right things to expose, and consider making it
// a list of options instead of individual flags
c.Flags().BoolVar(&r.name, "name", false, "print name field")
c.Flags().BoolVar(&r.resources, "resources", false, "print resources field")
c.Flags().BoolVar(&r.ports, "ports", false, "print ports field")
c.Flags().BoolVar(&r.images, "image", false, "print image field")
c.Flags().BoolVar(&r.replicas, "replicas", false, "print replicas field")
c.Flags().BoolVar(&r.args, "args", false, "print args field")
c.Flags().BoolVar(&r.cmd, "command", false, "print command field")
c.Flags().BoolVar(&r.env, "env", false, "print env field")
c.Flags().BoolVar(&r.all, "all", false, "print all field infos")
c.Flags().StringSliceVar(&r.fields, "field", []string{}, "print field")
c.Flags().BoolVar(&r.includeLocal, "include-local", false,
"if true, include local-config in the output.")
c.Flags().BoolVar(&r.excludeNonLocal, "exclude-non-local", false,
"if true, exclude non-local-config in the output.")
c.Flags().StringVar(&r.structure, "graph-structure", "",
"Graph structure to use for printing the tree. may be any of: "+
strings.Join(kio.GraphStructures, ","))
r.Command = c
return r
}
func TreeCommand(name string) *cobra.Command {
return GetTreeRunner(name).Command
}
// TreeRunner contains the run function
type TreeRunner struct {
Command *cobra.Command
name bool
resources bool
ports bool
images bool
replicas bool
all bool
env bool
args bool
cmd bool
fields []string
includeLocal bool
excludeNonLocal bool
structure string
}
func (r *TreeRunner) runE(c *cobra.Command, args []string) error {
var input kio.Reader
var root = "."
if len(args) == 0 {
args = append(args, root)
}
if args[0] == "-" {
input = &kio.ByteReader{Reader: c.InOrStdin()}
} else {
root = filepath.Clean(args[0])
input = kio.LocalPackageReader{PackagePath: args[0]}
}
var fields []kio.TreeWriterField
for _, field := range r.fields {
path, err := runner.ParseFieldPath(field)
if err != nil {
return err
}
fields = append(fields, newField(path...))
}
if r.name || (r.all && !c.Flag("name").Changed) {
fields = append(fields,
newField("spec", "containers", "[name=.*]", "name"),
newField("spec", "template", "spec", "containers", "[name=.*]", "name"),
newField("spec", "jobTemplate", "spec", "template", "spec", "containers", "[name=.*]", "name"),
)
}
if r.images || (r.all && !c.Flag("image").Changed) {
fields = append(fields,
newField("spec", "containers", "[name=.*]", "image"),
newField("spec", "template", "spec", "containers", "[name=.*]", "image"),
newField("spec", "jobTemplate", "spec", "template", "spec", "containers", "[name=.*]", "image"),
)
}
if r.cmd || (r.all && !c.Flag("command").Changed) {
fields = append(fields,
newField("spec", "containers", "[name=.*]", "command"),
newField("spec", "template", "spec", "containers", "[name=.*]", "command"),
newField("spec", "jobTemplate", "spec", "template", "spec", "containers", "[name=.*]", "command"),
)
}
if r.args || (r.all && !c.Flag("args").Changed) {
fields = append(fields,
newField("spec", "containers", "[name=.*]", "args"),
newField("spec", "template", "spec", "containers", "[name=.*]", "args"),
newField("spec", "jobTemplate", "spec", "template", "spec", "containers", "[name=.*]", "args"),
)
}
if r.env || (r.all && !c.Flag("env").Changed) {
fields = append(fields,
newField("spec", "containers", "[name=.*]", "env"),
newField("spec", "template", "spec", "containers", "[name=.*]", "env"),
newField("spec", "jobTemplate", "spec", "template", "spec", "containers", "[name=.*]", "env"),
)
}
if r.replicas || (r.all && !c.Flag("replicas").Changed) {
fields = append(fields,
newField("spec", "replicas"),
)
}
if r.resources || (r.all && !c.Flag("resources").Changed) {
fields = append(fields,
newField("spec", "containers", "[name=.*]", "resources"),
newField("spec", "template", "spec", "containers", "[name=.*]", "resources"),
newField("spec", "jobTemplate", "spec", "template", "spec", "containers", "[name=.*]", "resources"),
)
}
if r.ports || (r.all && !c.Flag("ports").Changed) {
fields = append(fields,
newField("spec", "containers", "[name=.*]", "ports"),
newField("spec", "template", "spec", "containers", "[name=.*]", "ports"),
newField("spec", "jobTemplate", "spec", "template", "spec", "containers", "[name=.*]", "ports"),
newField("spec", "ports"),
)
}
// show reconcilers in tree
fltrs := []kio.Filter{&filters.IsLocalConfig{
IncludeLocalConfig: r.includeLocal,
ExcludeNonLocalConfig: r.excludeNonLocal,
}}
return runner.HandleError(c, kio.Pipeline{
Inputs: []kio.Reader{input},
Filters: fltrs,
Outputs: []kio.Writer{kio.TreeWriter{
Root: root,
Writer: c.OutOrStdout(),
Fields: fields,
Structure: kio.TreeStructure(r.structure),
OpenAPIFileName: ext.KRMFileName(),
}},
}.Execute())
}
func newField(val ...string) kio.TreeWriterField {
if strings.HasPrefix(strings.Join(val, "."), "spec.template.spec.containers") {
return kio.TreeWriterField{
Name: "spec.template.spec.containers",
PathMatcher: yaml.PathMatcher{Path: val, StripComments: true},
SubName: val[len(val)-1],
}
}
if strings.HasPrefix(strings.Join(val, "."), "spec.jobTemplate.spec.template.spec.containers") {
return kio.TreeWriterField{
Name: "spec.jobTemplate.spec.template.spec.containers",
PathMatcher: yaml.PathMatcher{Path: val, StripComments: true},
SubName: val[len(val)-1],
}
}
if strings.HasPrefix(strings.Join(val, "."), "spec.containers") {
return kio.TreeWriterField{
Name: "spec.containers",
PathMatcher: yaml.PathMatcher{Path: val, StripComments: true},
SubName: val[len(val)-1],
}
}
return kio.TreeWriterField{
Name: strings.Join(val, "."),
PathMatcher: yaml.PathMatcher{Path: val, StripComments: true},
}
}
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