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Revert "Get rid of flagErrorBuf (#417)"

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This reverts commit b655df6ce8.

Reason for revert: duplicate errors from flag. More in #426

Fix #426
This commit is contained in:
Albert Nigmatzianov 2017-04-27 14:55:09 +02:00
parent 6dd90846ba
commit 3d7bff8a32
1 changed files with 25 additions and 6 deletions
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31
command.go
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@ -114,6 +114,9 @@ type Command struct {
// is commands slice are sorted or not
commandsAreSorted bool
// flagErrorBuf contains all error messages from pflag.
flagErrorBuf *bytes.Buffer
args []string // actual args parsed from flags
output io.Writer // out writer if set in SetOutput(w)
usageFunc func(*Command) error // Usage can be defined by application
@ -915,6 +918,7 @@ func (c *Command) DebugFlags() {
}
})
}
c.Println(x.flagErrorBuf)
if x.HasSubCommands() {
for _, y := range x.commands {
debugflags(y)
@ -1055,7 +1059,10 @@ func (c *Command) GlobalNormalizationFunc() func(f *flag.FlagSet, name string) f
func (c *Command) Flags() *flag.FlagSet {
if c.flags == nil {
c.flags = flag.NewFlagSet(c.Name(), flag.ContinueOnError)
c.flags.SetOutput(c.OutOrStderr())
if c.flagErrorBuf == nil {
c.flagErrorBuf = new(bytes.Buffer)
}
c.flags.SetOutput(c.flagErrorBuf)
}
return c.flags
@ -1080,7 +1087,10 @@ func (c *Command) LocalFlags() *flag.FlagSet {
if c.lflags == nil {
c.lflags = flag.NewFlagSet(c.Name(), flag.ContinueOnError)
c.lflags.SetOutput(c.OutOrStderr())
if c.flagErrorBuf == nil {
c.flagErrorBuf = new(bytes.Buffer)
}
c.lflags.SetOutput(c.flagErrorBuf)
}
c.lflags.SortFlags = c.Flags().SortFlags
@ -1100,6 +1110,10 @@ func (c *Command) InheritedFlags() *flag.FlagSet {
if c.iflags == nil {
c.iflags = flag.NewFlagSet(c.Name(), flag.ContinueOnError)
if c.flagErrorBuf == nil {
c.flagErrorBuf = new(bytes.Buffer)
}
c.iflags.SetOutput(c.flagErrorBuf)
}
local := c.LocalFlags()
@ -1120,17 +1134,22 @@ func (c *Command) NonInheritedFlags() *flag.FlagSet {
func (c *Command) PersistentFlags() *flag.FlagSet {
if c.pflags == nil {
c.pflags = flag.NewFlagSet(c.Name(), flag.ContinueOnError)
c.pflags.SetOutput(c.OutOrStderr())
if c.flagErrorBuf == nil {
c.flagErrorBuf = new(bytes.Buffer)
}
c.pflags.SetOutput(c.flagErrorBuf)
}
return c.pflags
}
// ResetFlags is used in testing.
func (c *Command) ResetFlags() {
c.flagErrorBuf = new(bytes.Buffer)
c.flagErrorBuf.Reset()
c.flags = flag.NewFlagSet(c.Name(), flag.ContinueOnError)
c.flags.SetOutput(c.OutOrStderr())
c.flags.SetOutput(c.flagErrorBuf)
c.pflags = flag.NewFlagSet(c.Name(), flag.ContinueOnError)
c.pflags.SetOutput(c.OutOrStderr())
c.pflags.SetOutput(c.flagErrorBuf)
}
// HasFlags checks if the command contains any flags (local plus persistent from the entire structure).
@ -1229,7 +1248,7 @@ func (c *Command) mergePersistentFlags() {
func (c *Command) updateParentsPflags() {
if c.parentsPflags == nil {
c.parentsPflags = flag.NewFlagSet(c.Name(), flag.ContinueOnError)
c.parentsPflags.SetOutput(c.OutOrStderr())
c.parentsPflags.SetOutput(c.flagErrorBuf)
c.parentsPflags.SortFlags = false
}