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Several 'help' fixes

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This commit is contained in:
fabianofranz 2015-02-03 21:58:10 -02:00
parent f576d29563
commit fee4ba735a
1 changed files with 17 additions and 4 deletions
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19
command.go
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@ -18,13 +18,14 @@ package cobra
import (
"bytes"
"fmt"
"github.com/inconshreveable/mousetrap"
flag "github.com/spf13/pflag"
"io"
"os"
"runtime"
"strings"
"time"
"github.com/inconshreveable/mousetrap"
flag "github.com/spf13/pflag"
)
// Command is just that, a command for your application.
@ -370,6 +371,9 @@ func (c *Command) Find(arrs []string) (*Command, []string, error) {
// only accept a single prefix match - multiple matches would be ambiguous
if len(matches) == 1 {
return innerfind(matches[0], argsMinusX(args, argsWOflags[0]))
} else if len(matches) == 0 && len(args) > 0 && args[0] == "help" {
// special case help command
return innerfind(c, argsMinusX(append(args, "--help"), argsWOflags[0]))
}
}
}
@ -790,6 +794,13 @@ func (c *Command) HasParent() bool {
return c.parent != nil
}
func (c *Command) assureHelpFlag() {
if c.Flags().Lookup("help") == nil && c.PersistentFlags().Lookup("help") == nil {
c.PersistentFlags().BoolVarP(&c.helpFlagVal, "help", "h", false, "help for "+c.Name())
}
c.mergePersistentFlags()
}
// Get the complete FlagSet that applies to this command (local and persistent declared here and by all parents)
func (c *Command) Flags() *flag.FlagSet {
if c.flags == nil {
@ -798,7 +809,7 @@ func (c *Command) Flags() *flag.FlagSet {
c.flagErrorBuf = new(bytes.Buffer)
}
c.flags.SetOutput(c.flagErrorBuf)
c.PersistentFlags().BoolVarP(&c.helpFlagVal, "help", "h", false, "help for "+c.Name())
c.assureHelpFlag()
}
return c.flags
}
@ -934,8 +945,10 @@ func (c *Command) mergePersistentFlags() {
}
c.lflags.SetOutput(c.flagErrorBuf)
addtolocal := func(f *flag.Flag) {
if c.lflags.Lookup(f.Name) == nil {
c.lflags.AddFlag(f)
}
}
c.Flags().VisitAll(addtolocal)
c.PersistentFlags().VisitAll(addtolocal)
}