// RunCommandInDir works like RunCommand, but runs with a context that uses dir.
func RunCommandInDir(c *gc.C, com cmd.Command, args []string, dir string) (*cmd.Context, error) {
if err := InitCommand(com, args); err != nil {
return nil, err
}
var context = ContextForDir(c, dir)
return context, com.Run(context)
}
func helpText(command cmd.Command, name string) string {
buff := &bytes.Buffer{}
info := command.Info()
info.Name = name
f := gnuflag.NewFlagSet(info.Name, gnuflag.ContinueOnError)
command.SetFlags(f)
buff.Write(info.Help(f))
return buff.String()
}
func runCommand(ctx *cmd.Context, com cmd.Command, args ...string) (opc chan dummy.Operation, errc chan error) {
if ctx == nil {
panic("ctx == nil")
}
errc = make(chan error, 1)
opc = make(chan dummy.Operation, 200)
dummy.Listen(opc)
go func() {
// signal that we're done with this ops channel.
defer dummy.Listen(nil)
err := coretesting.InitCommand(com, args)
if err != nil {
errc <- err
return
}
err = com.Run(ctx)
errc <- err
}()
return
}
// InitCommand will create a new flag set, and call the Command's SetFlags and
// Init methods with the appropriate args.
func InitCommand(c cmd.Command, args []string) error {
f := NewFlagSet()
c.SetFlags(f)
if err := f.Parse(c.AllowInterspersedFlags(), args); err != nil {
return err
}
return c.Init(f.Args())
}