k9s/internal/view/cmd/interpreter.go

201 lines
3.1 KiB
Go

// SPDX-License-Identifier: Apache-2.0
// Copyright Authors of K9s
package cmd
import (
"strings"
)
type Interpreter struct {
line string
cmd string
args args
}
func NewInterpreter(s string) *Interpreter {
c := Interpreter{
line: strings.ToLower(s),
args: make(args),
}
c.grok()
return &c
}
func (c *Interpreter) grok() {
ff := strings.Fields(c.line)
if len(ff) == 0 {
return
}
c.cmd = ff[0]
c.args = newArgs(c, ff[1:])
}
func (c *Interpreter) HasNS() bool {
ns, ok := c.args[nsKey]
return ok && ns != ""
}
func (c *Interpreter) Cmd() string {
return c.cmd
}
func (c *Interpreter) IsBlank() bool {
return c.line == ""
}
func (c *Interpreter) Amend(c1 *Interpreter) {
c.cmd = c1.cmd
if c.args == nil {
c.args = make(args, len(c1.args))
}
for k, v := range c1.args {
if v != "" {
c.args[k] = v
}
}
}
func (c *Interpreter) Reset(s string) *Interpreter {
c.line = strings.ToLower(s)
c.grok()
return c
}
func (c *Interpreter) GetLine() string {
return strings.TrimSpace(c.line)
}
func (c *Interpreter) IsCowCmd() bool {
return c.cmd == cowCmd
}
func (c *Interpreter) IsHelpCmd() bool {
_, ok := helpCmd[c.cmd]
return ok
}
func (c *Interpreter) IsBailCmd() bool {
_, ok := bailCmd[c.cmd]
return ok
}
func (c *Interpreter) IsAliasCmd() bool {
_, ok := aliasCmd[c.cmd]
return ok
}
func (c *Interpreter) IsXrayCmd() bool {
_, ok := xrayCmd[c.cmd]
return ok
}
func (c *Interpreter) IsContextCmd() bool {
_, ok := contextCmd[c.cmd]
return ok
}
func (c *Interpreter) IsDirCmd() bool {
_, ok := dirCmd[c.cmd]
return ok
}
func (c *Interpreter) IsRBACCmd() bool {
return c.cmd == canCmd
}
func (c *Interpreter) ContextArg() (string, bool) {
if !c.IsContextCmd() {
return "", false
}
return c.args[contextKey], true
}
func (c *Interpreter) ResetContextArg() {
delete(c.args, contextFlag)
}
func (c *Interpreter) DirArg() (string, bool) {
if !c.IsDirCmd() || c.args[topicKey] == "" {
return "", false
}
return c.args[topicKey], true
}
func (c *Interpreter) CowArg() (string, bool) {
if !c.IsCowCmd() || c.args[nsKey] == "" {
return "", false
}
return c.args[nsKey], true
}
func (c *Interpreter) RBACArgs() (string, string, bool) {
if !c.IsRBACCmd() {
return "", "", false
}
tt := rbacRX.FindStringSubmatch(c.line)
if len(tt) < 3 {
return "", "", false
}
return tt[1], tt[2], true
}
func (c *Interpreter) XrayArgs() (string, string, bool) {
if !c.IsXrayCmd() {
return "", "", false
}
gvr, ok1 := c.args[topicKey]
if !ok1 {
return "", "", false
}
ns, ok2 := c.args[nsKey]
switch {
case ok1 && ok2:
return gvr, ns, true
case ok1 && !ok2:
return gvr, "", true
default:
return "", "", false
}
}
func (c *Interpreter) FilterArg() (string, bool) {
f, ok := c.args[filterKey]
return f, ok
}
func (c *Interpreter) NSArg() (string, bool) {
ns, ok := c.args[nsKey]
return ns, ok
}
func (c *Interpreter) HasContext() (string, bool) {
ctx, ok := c.args[contextKey]
if !ok || ctx == "" {
return "", false
}
return ctx, ok
}
func (c *Interpreter) LabelsArg() (map[string]string, bool) {
ll, ok := c.args[labelKey]
if !ok {
return nil, false
}
return ToLabels(ll), true
}