mirror of
https://gitea.com/Sirherobrine23/tea.git
synced 2024-08-22 00:57:24 +00:00
chore(cli): upgrade urfave/cli to v2 version Co-authored-by: Bo-Yi Wu <appleboy.tw@gmail.com> Reviewed-by: Lunny Xiao <xiaolunwen@gmail.com> Reviewed-by: Andrew Thornton <art27@cantab.net>
95 lines
2.4 KiB
Go
95 lines
2.4 KiB
Go
package cli
|
|
|
|
import (
|
|
"flag"
|
|
"strings"
|
|
)
|
|
|
|
type iterativeParser interface {
|
|
newFlagSet() (*flag.FlagSet, error)
|
|
useShortOptionHandling() bool
|
|
}
|
|
|
|
// To enable short-option handling (e.g., "-it" vs "-i -t") we have to
|
|
// iteratively catch parsing errors. This way we achieve LR parsing without
|
|
// transforming any arguments. Otherwise, there is no way we can discriminate
|
|
// combined short options from common arguments that should be left untouched.
|
|
// Pass `shellComplete` to continue parsing options on failure during shell
|
|
// completion when, the user-supplied options may be incomplete.
|
|
func parseIter(set *flag.FlagSet, ip iterativeParser, args []string, shellComplete bool) error {
|
|
for {
|
|
err := set.Parse(args)
|
|
if !ip.useShortOptionHandling() || err == nil {
|
|
if shellComplete {
|
|
return nil
|
|
}
|
|
return err
|
|
}
|
|
|
|
errStr := err.Error()
|
|
trimmed := strings.TrimPrefix(errStr, "flag provided but not defined: -")
|
|
if errStr == trimmed {
|
|
return err
|
|
}
|
|
|
|
// regenerate the initial args with the split short opts
|
|
argsWereSplit := false
|
|
for i, arg := range args {
|
|
// skip args that are not part of the error message
|
|
if name := strings.TrimLeft(arg, "-"); name != trimmed {
|
|
continue
|
|
}
|
|
|
|
// if we can't split, the error was accurate
|
|
shortOpts := splitShortOptions(set, arg)
|
|
if len(shortOpts) == 1 {
|
|
return err
|
|
}
|
|
|
|
// swap current argument with the split version
|
|
args = append(args[:i], append(shortOpts, args[i+1:]...)...)
|
|
argsWereSplit = true
|
|
break
|
|
}
|
|
|
|
// This should be an impossible to reach code path, but in case the arg
|
|
// splitting failed to happen, this will prevent infinite loops
|
|
if !argsWereSplit {
|
|
return err
|
|
}
|
|
|
|
// Since custom parsing failed, replace the flag set before retrying
|
|
newSet, err := ip.newFlagSet()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
*set = *newSet
|
|
}
|
|
}
|
|
|
|
func splitShortOptions(set *flag.FlagSet, arg string) []string {
|
|
shortFlagsExist := func(s string) bool {
|
|
for _, c := range s[1:] {
|
|
if f := set.Lookup(string(c)); f == nil {
|
|
return false
|
|
}
|
|
}
|
|
return true
|
|
}
|
|
|
|
if !isSplittable(arg) || !shortFlagsExist(arg) {
|
|
return []string{arg}
|
|
}
|
|
|
|
separated := make([]string, 0, len(arg)-1)
|
|
for _, flagChar := range arg[1:] {
|
|
separated = append(separated, "-"+string(flagChar))
|
|
}
|
|
|
|
return separated
|
|
}
|
|
|
|
func isSplittable(flagArg string) bool {
|
|
return strings.HasPrefix(flagArg, "-") && !strings.HasPrefix(flagArg, "--") && len(flagArg) > 2
|
|
}
|