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|
package kubectl
import (
"strings"
)
type SubcommandInfo struct {
Subcommand Subcommand
FormatOption FormatOption
NoHeader bool
Watch bool
Help bool
Recursive bool
Short bool
IsKrew bool
}
type FormatOption int
const (
None FormatOption = iota
Wide
Json
Yaml
)
type Subcommand int
const (
Create Subcommand = iota + 1
Expose
Run
Set
Explain
Get
Edit
Delete
Rollout
Scale
Autoscale
Certificate
ClusterInfo
Top
Cordon
Uncordon
Drain
Taint
Describe
Logs
Attach
Exec
PortForward
Proxy
Cp
Auth
Diff
Apply
Patch
Replace
Wait
Convert
Kustomize
Label
Annotate
Completion
APIResources
APIVersions
Config
Plugin
Version
Options
)
var strToSubcommand = map[string]Subcommand{
"create": Create,
"expose": Expose,
"run": Run,
"set": Set,
"explain": Explain,
"get": Get,
"edit": Edit,
"delete": Delete,
"rollout": Rollout,
"scale": Scale,
"autoscale": Autoscale,
"certificate": Certificate,
"cluster-info": ClusterInfo,
"top": Top,
"cordon": Cordon,
"uncordon": Uncordon,
"drain": Drain,
"taint": Taint,
"describe": Describe,
"logs": Logs,
"attach": Attach,
"exec": Exec,
"port-forward": PortForward,
"proxy": Proxy,
"cp": Cp,
"auth": Auth,
"diff": Diff,
"apply": Apply,
"patch": Patch,
"replace": Replace,
"wait": Wait,
"convert": Convert,
"kustomize": Kustomize,
"label": Label,
"annotate": Annotate,
"completion": Completion,
"api-resources": APIResources,
"api-versions": APIVersions,
"config": Config,
"plugin": Plugin,
"version": Version,
"options": Options,
}
func InspectSubcommand(command string) (Subcommand, bool) {
sc, ok := strToSubcommand[command]
return sc, ok
}
func CollectCommandlineOptions(args []string, info *SubcommandInfo) {
for i := range args {
if strings.HasPrefix(args[i], "--output") {
switch args[i] {
case "--output=json":
info.FormatOption = Json
case "--output=yaml":
info.FormatOption = Yaml
case "--output=wide":
info.FormatOption = Wide
default:
if len(args)-1 > i {
formatOption := args[i+1]
switch formatOption {
case "json":
info.FormatOption = Json
case "yaml":
info.FormatOption = Yaml
case "wide":
info.FormatOption = Wide
default:
// custom-columns, go-template, etc are currently not supported
}
}
}
} else if strings.HasPrefix(args[i], "-o") {
switch args[i] {
// both '-ojson' and '-o=json' works
case "-ojson", "-o=json":
info.FormatOption = Json
case "-oyaml", "-o=yaml":
info.FormatOption = Yaml
case "-owide", "-o=wide":
info.FormatOption = Wide
default:
// otherwise, look for next arg because '-o json' also works
if len(args)-1 > i {
formatOption := args[i+1]
switch formatOption {
case "json":
info.FormatOption = Json
case "yaml":
info.FormatOption = Yaml
case "wide":
info.FormatOption = Wide
default:
// custom-columns, go-template, etc are currently not supported
}
}
}
} else if strings.HasPrefix(args[i], "--short") {
switch args[i] {
case "--short=true":
info.Short = true
case "--short=false":
info.Short = false
default:
info.Short = true
}
} else if args[i] == "--no-headers" {
info.NoHeader = true
} else if args[i] == "-w" || args[i] == "--watch" {
info.Watch = true
} else if args[i] == "--recursive=true" {
info.Recursive = true
} else if args[i] == "-h" || args[i] == "--help" {
info.Help = true
}
}
}
// TODO: return shouldColorize = false when the given args is for plugin
func InspectSubcommandInfo(args []string) (*SubcommandInfo, bool) {
ret := &SubcommandInfo{}
CollectCommandlineOptions(args, ret)
for i := range args {
cmd, ok := InspectSubcommand(args[i])
if !ok {
continue
}
ret.Subcommand = cmd
return ret, true
}
return ret, false
}
|
