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Added an option to set custom FlagErrorHandling

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This commit is contained in:
Gauri Prasad 2022-04-11 11:11:41 -07:00
parent 9d15fe657a
commit fe9ade5260
1 changed files with 14 additions and 8 deletions
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22
command.go
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@ -31,6 +31,9 @@ import (
// FParseErrWhitelist configures Flag parse errors to be ignored
type FParseErrWhitelist flag.ParseErrorsWhitelist
// FErrorHandling defines how to handle flag parsing errors
type FErrorHandling flag.ErrorHandling
// Command is just that, a command for your application.
// E.g. 'go run ...' - 'run' is the command. Cobra requires
// you to define the usage and description as part of your command
@ -222,6 +225,9 @@ type Command struct {
// SuggestionsMinimumDistance defines minimum levenshtein distance to display suggestions.
// Must be > 0.
SuggestionsMinimumDistance int
// FlagErrorHandling defines how to handle flag parsing errors. Defaults to flag.ContinueOnError.
FlagErrorHandling FErrorHandling
}
// Context returns underlying command context. If command was executed
@ -1460,7 +1466,7 @@ func (c *Command) GlobalNormalizationFunc() func(f *flag.FlagSet, name string) f
// to this command (local and persistent declared here and by all parents).
func (c *Command) Flags() *flag.FlagSet {
if c.flags == nil {
c.flags = flag.NewFlagSet(c.Name(), flag.ContinueOnError)
c.flags = flag.NewFlagSet(c.Name(), (flag.ErrorHandling)(c.FlagErrorHandling))
if c.flagErrorBuf == nil {
c.flagErrorBuf = new(bytes.Buffer)
}
@ -1474,7 +1480,7 @@ func (c *Command) Flags() *flag.FlagSet {
func (c *Command) LocalNonPersistentFlags() *flag.FlagSet {
persistentFlags := c.PersistentFlags()
out := flag.NewFlagSet(c.Name(), flag.ContinueOnError)
out := flag.NewFlagSet(c.Name(), (flag.ErrorHandling)(c.FlagErrorHandling))
c.LocalFlags().VisitAll(func(f *flag.Flag) {
if persistentFlags.Lookup(f.Name) == nil {
out.AddFlag(f)
@ -1488,7 +1494,7 @@ func (c *Command) LocalFlags() *flag.FlagSet {
c.mergePersistentFlags()
if c.lflags == nil {
c.lflags = flag.NewFlagSet(c.Name(), flag.ContinueOnError)
c.lflags = flag.NewFlagSet(c.Name(), (flag.ErrorHandling)(c.FlagErrorHandling))
if c.flagErrorBuf == nil {
c.flagErrorBuf = new(bytes.Buffer)
}
@ -1514,7 +1520,7 @@ func (c *Command) InheritedFlags() *flag.FlagSet {
c.mergePersistentFlags()
if c.iflags == nil {
c.iflags = flag.NewFlagSet(c.Name(), flag.ContinueOnError)
c.iflags = flag.NewFlagSet(c.Name(), (flag.ErrorHandling)(c.FlagErrorHandling))
if c.flagErrorBuf == nil {
c.flagErrorBuf = new(bytes.Buffer)
}
@ -1542,7 +1548,7 @@ func (c *Command) NonInheritedFlags() *flag.FlagSet {
// PersistentFlags returns the persistent FlagSet specifically set in the current command.
func (c *Command) PersistentFlags() *flag.FlagSet {
if c.pflags == nil {
c.pflags = flag.NewFlagSet(c.Name(), flag.ContinueOnError)
c.pflags = flag.NewFlagSet(c.Name(), (flag.ErrorHandling)(c.FlagErrorHandling))
if c.flagErrorBuf == nil {
c.flagErrorBuf = new(bytes.Buffer)
}
@ -1555,9 +1561,9 @@ func (c *Command) PersistentFlags() *flag.FlagSet {
func (c *Command) ResetFlags() {
c.flagErrorBuf = new(bytes.Buffer)
c.flagErrorBuf.Reset()
c.flags = flag.NewFlagSet(c.Name(), flag.ContinueOnError)
c.flags = flag.NewFlagSet(c.Name(), (flag.ErrorHandling)(c.FlagErrorHandling))
c.flags.SetOutput(c.flagErrorBuf)
c.pflags = flag.NewFlagSet(c.Name(), flag.ContinueOnError)
c.pflags = flag.NewFlagSet(c.Name(), (flag.ErrorHandling)(c.FlagErrorHandling))
c.pflags.SetOutput(c.flagErrorBuf)
c.lflags = nil
@ -1674,7 +1680,7 @@ func (c *Command) mergePersistentFlags() {
// If c.parentsPflags == nil, it makes new.
func (c *Command) updateParentsPflags() {
if c.parentsPflags == nil {
c.parentsPflags = flag.NewFlagSet(c.Name(), flag.ContinueOnError)
c.parentsPflags = flag.NewFlagSet(c.Name(), (flag.ErrorHandling)(c.FlagErrorHandling))
c.parentsPflags.SetOutput(c.flagErrorBuf)
c.parentsPflags.SortFlags = false
}