Add support for ignoring parse errors (#662)

This commit is contained in:
Rajat Jindal
2018-03-31 05:36:20 -07:00
committed by Eric Paris
parent a1f051bc3e
commit 4dab30cb33
2 changed files with 115 additions and 0 deletions

View File

@ -27,6 +27,9 @@ import (
flag "github.com/spf13/pflag"
)
// FParseErrWhitelist configures Flag parse errors to be ignored
type FParseErrWhitelist flag.ParseErrorsWhitelist
// 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
@ -137,6 +140,9 @@ type Command struct {
// TraverseChildren parses flags on all parents before executing child command.
TraverseChildren bool
//FParseErrWhitelist flag parse errors to be ignored
FParseErrWhitelist FParseErrWhitelist
// commands is the list of commands supported by this program.
commands []*Command
// parent is a parent command for this command.
@ -1463,6 +1469,10 @@ func (c *Command) ParseFlags(args []string) error {
}
beforeErrorBufLen := c.flagErrorBuf.Len()
c.mergePersistentFlags()
//do it here after merging all flags and just before parse
c.Flags().ParseErrorsWhitelist = flag.ParseErrorsWhitelist(c.FParseErrWhitelist)
err := c.Flags().Parse(args)
// Print warnings if they occurred (e.g. deprecated flag messages).
if c.flagErrorBuf.Len()-beforeErrorBufLen > 0 && err == nil {