Add flag for generating with individual package policy.

tools/exp/main.go

@@ -41,7 +41,8 @@ var (
 	input     = flag.String("input", "spec.json", "Input JSON-LD specification used to generate Go code.")
 	vocabName = flag.String("vocab", "ActivityStreams", "The vocabulary name being generated by 'input'.")
 	// TODO: Be more rigorous when applying this. Also, clear the default value I am using for convenience.
-	prefix = flag.String("prefix", "github.com/cjslep/activity/tools/exp/tmp", "Package prefix to use for all generated package paths. This should be the prefix in the GOPATH directory if generating in a subdirectory.")
+	prefix     = flag.String("prefix", "github.com/cjslep/activity/tools/exp/tmp", "Package prefix to use for all generated package paths. This should be the prefix in the GOPATH directory if generating in a subdirectory.")
+	individual = flag.Bool("individual", false, "Whether to generate types and properties in individual packages.")
 )
 
 type list []string
@@ -73,12 +74,16 @@ func main() {
 	if err != nil {
 		panic(err)
 	}
+	policy := convert.FlatUnderRoot
+	if *individual {
+		policy = convert.IndividualUnderRoot
+	}
 	c := &convert.Converter{
 		Registry:       registry,
 		GenRoot:        props.NewPackageManager(*prefix, "gen"),
 		VocabularyName: *vocabName,
 		ValueRoot:      props.NewPackageManager(*prefix, "gen/vals"),
-		PackagePolicy:  convert.FlatUnderRoot,
+		PackagePolicy:  policy,
 	}
 	f, err := c.Convert(p)
 	if err != nil {