1 files changed, 108 insertions, 0 deletions
diff --git a/research/knobloch/cmd/train/serialize.go b/research/knobloch/cmd/train/serialize.go
new file mode 100644
index 0000000..9fbf968
--- /dev/null
+++ b/research/knobloch/cmd/train/serialize.go
@@ -0,0 +1,108 @@
+package main
+
+import (
+	"fmt"
+	"log"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"github.com/jonasknobloch/mbpe"
+
+	"go.jknobloc.com/x/shelf"
+)
+
+func serialize() {
+	base := shelf.Abs("results/knobloch/minipile")
+
+	var paths []string
+
+	if ps, err := subDirs(base); err != nil {
+		log.Fatal(err)
+	} else {
+		paths = ps
+	}
+
+	steps := []int{100512, 50256, 32768, 16384, 8192}
+
+	outRoot := shelf.Abs("tokenizers")
+
+	if err := os.MkdirAll(outRoot, os.ModePerm); err != nil {
+		log.Fatal(err)
+	}
+
+	for _, step := range steps {
+		for _, path := range paths {
+			model := mbpe.NewMBPE()
+
+			if err := model.Load(filepath.Join(path, "vocab.json"), filepath.Join(path, "merges.txt")); err != nil {
+				log.Fatal(err)
+			}
+
+			model.Trim(step)
+
+			dir := fmt.Sprintf("tokenizer_gpt2_%d_%s", step, filepath.Base(path))
+
+			out := filepath.Join(outRoot, dir)
+
+			if err := os.Mkdir(out, os.ModePerm); err != nil {
+				log.Fatal(err)
+			}
+
+			if err := model.Save(filepath.Join(out, "vocab.json"), filepath.Join(out, "merges.txt")); err != nil {
+				log.Fatal(err)
+			}
+
+			var config string
+			var special string
+
+			if bs, err := os.ReadFile(shelf.Abs("models/gpt2/tokenizer_config.json")); err != nil {
+				log.Fatal(bs)
+			} else {
+				config = string(bs)
+			}
+
+			if bs, err := os.ReadFile(shelf.Abs("models/gpt2/special_tokens_map.json")); err != nil {
+				log.Fatal(err)
+			} else {
+				special = string(bs)
+			}
+
+			config = strings.Replace(config, "50256", fmt.Sprintf("%d", step), -1)
+
+			if err := os.WriteFile(filepath.Join(out, "tokenizer_config.json"), []byte(config), os.ModePerm); err != nil {
+				log.Fatal(err)
+			}
+
+			if err := os.WriteFile(filepath.Join(out, "special_tokens_map.json"), []byte(special), os.ModePerm); err != nil {
+				log.Fatal(err)
+			}
+		}
+	}
+}
+
+func subDirs(base string) ([]string, error) {
+	paths := make([]string, 0)
+
+	err := filepath.WalkDir(base, func(path string, d os.DirEntry, err error) error {
+		if err != nil {
+			return err
+		}
+
+		rel, err := filepath.Rel(base, path)
+
+		if err != nil {
+			return err
+		}
+
+		depth := strings.Count(rel, string(os.PathSeparator))
+
+		if d.IsDir() && rel != "." && depth == 0 {
+			paths = append(paths, path)
+		}
+
+		return nil
+	})
+
+	return paths, err
+}