Move stdin name handling here

cli/parse.go

@@ -78,6 +78,11 @@ func isRecursive(req *cmds.Request) bool {
 	return rec && ok
 }
 
+func stdinName(req *cmds.Request) string {
+	name, _ := req.Options[cmds.StdinName].(string)
+	return name
+}
+
 type parseState struct {
 	cmdline []string
 	i       int
@@ -264,7 +269,7 @@ func parseArgs(req *cmds.Request, root *cmds.Command, stdin *os.File) error {
 						return err
 					}
 
-					fpath = ""
+					fpath = stdinName(req)
 					file, err = files.NewReaderPathFile(stdin.Name(), r, nil)
 					if err != nil {
 						return err
@@ -305,7 +310,7 @@ func parseArgs(req *cmds.Request, root *cmds.Command, stdin *os.File) error {
 					return err
 				}
 
-				fileArgs[""], err = files.NewReaderPathFile(stdin.Name(), r, nil)
+				fileArgs[stdinName(req)], err = files.NewReaderPathFile(stdin.Name(), r, nil)
 				if err != nil {
 					return err
 				}

opts.go

@@ -15,6 +15,7 @@ const (
 	OptShortHelp = "h"
 	OptLongHelp  = "help"
 	DerefLong    = "dereference-args"
+	StdinName    = "stdin-name"
 )
 
 // options that are used by this package
@@ -23,3 +24,4 @@ var OptionRecursivePath = cmdkit.BoolOption(RecLong, RecShort, "Add directory pa
 var OptionStreamChannels = cmdkit.BoolOption(ChanOpt, "Stream channel output")
 var OptionTimeout = cmdkit.StringOption(TimeoutOpt, "Set a global timeout on the command")
 var OptionDerefArgs = cmdkit.BoolOption(DerefLong, "Symlinks supplied in arguments are dereferenced")
+var OptionStdinName = cmdkit.StringOption(StdinName, "Assign a name if the file source is stdin.")