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Finding command based on args cleaned up

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spf13 2013-09-29 01:59:13 -04:00
parent 74ce44d76e
commit 55ff474dee
1 changed files with 25 additions and 13 deletions
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38
command.go
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@ -77,25 +77,37 @@ func (c *Command) resetChildrensParents() {
// find the target command given the args and command tree
// Meant to be run on the highest node. Only searches down.
func (c *Command) Find(args []string) (cmd *Command, a []string, err error) {
func (c *Command) Find(arrs []string) (*Command, []string, error) {
if c == nil {
return nil, nil, fmt.Errorf("Called find() on a nil Command")
}
validSubCommand := false
if len(args) > 0 && c.HasSubCommands() {
for _, cmd := range c.commands {
if cmd.Name() == args[0] {
validSubCommand = true
return cmd.Find(args[1:])
}
}
}
if !validSubCommand && c.Runnable() {
return c, args, nil
if len(arrs) == 0 {
return c.Commander().cmd, arrs, nil
}
return nil, nil, nil
var innerfind func(*Command, []string) (*Command, []string)
innerfind = func(c *Command, args []string) (*Command, []string) {
if len(args) > 0 && c.HasSubCommands() {
for _, cmd := range c.commands {
if cmd.Name() == args[0] {
return innerfind(cmd, args[1:])
}
}
}
return c, args
}
commandFound, a := innerfind(c, arrs)
// if commander returned and not appropriately matched return nil & error
if commandFound.Name() == c.Name() && commandFound.Name() != arrs[0] {
return nil, a, fmt.Errorf("Command not found")
}
return commandFound, a, nil
}
func (c *Command) Root() *Command {