kitchen: add -python-path

common/flag/stringlistflag/stringlistflag.go

Index: common/flag/stringlistflag/stringlistflag.go
diff --git a/common/flag/stringsetflag/stringsetflag.go b/common/flag/stringlistflag/stringlistflag.go
similarity index 52%
copy from common/flag/stringsetflag/stringsetflag.go
copy to common/flag/stringlistflag/stringlistflag.go
index 798d70cf87982cb83c436f8836503a5e1c234694..7cbe0279f656970e49f51d476067cb824ce7d642 100644
--- a/common/flag/stringsetflag/stringsetflag.go
+++ b/common/flag/stringlistflag/stringlistflag.go
@@ -2,20 +2,17 @@
 // Use of this source code is governed under the Apache License, Version 2.0
 // that can be found in the LICENSE file.
 
-// Package stringsetflag provides a flag.Value implementation which resolves
-// multiple args into a stringset.
-package stringsetflag
+// Package stringlistflag provides a flag.Value implementation which resolves
+// multiple args into a []string.
+package stringlistflag
 
 import (
 	"flag"
 	"fmt"
-	"sort"
 	"strings"
-
-	"github.com/luci/luci-go/common/stringset"
 )
 
-// Flag is a flag.Value implementation which represents an unordered set of
+// Flag is a flag.Value implementation which represents an ordered set of
 // strings.
 //
 // For example, this allows you to construct a flag that would behave like:
@@ -23,18 +20,13 @@ import (
 //   -myflag Bar
 //   -myflag Bar
 //
-// And then myflag.Data.Has("Bar") would be true.
-type Flag struct{ Data stringset.Set }
+// And then myflag would be []string{"Foo", "Bar", "Bar"}
+type Flag []string
 
 var _ flag.Value = (*Flag)(nil)
 
 func (f Flag) String() string {
-	if f.Data == nil {
-		return ""
-	}
-	slc := f.Data.ToSlice()
-	sort.Strings(slc)
-	return strings.Join(slc, ",")
+	return strings.Join(f, ", ")
 }
 
 // Set implements flag.Value's Set function.
@@ -43,10 +35,6 @@ func (f *Flag) Set(val string) error {
 		return fmt.Errorf("must have an argument value")
 	}
 
-	if f.Data == nil {
-		f.Data = stringset.NewFromSlice(val)
-	} else {
-		f.Data.Add(val)
-	}
+	*f = append(*f, val)
 	return nil
 }