cmd/index-pack: Split files

1 files changed, 25 insertions, 0 deletions

diff --git a/cmd/index-pack/algorithm.go b/cmd/index-pack/algorithm.go
new file mode 100644
index 00000000..fc57991a
--- /dev/null
+++ b/cmd/index-pack/algorithm.go
@@ -0,0 +1,25 @@
+package main
+
+import (
+	"fmt"
+
+	objectid "codeberg.org/lindenii/furgit/object/id"
+	"codeberg.org/lindenii/furgit/repository"
+)
+
+func resolveAlgorithm(repo *repository.Repository, objectFormat string) (objectid.Algorithm, error) {
+	if objectFormat != "" {
+		algo, ok := objectid.ParseAlgorithm(objectFormat)
+		if !ok {
+			return objectid.AlgorithmUnknown, fmt.Errorf("invalid object format %q", objectFormat)
+		}
+
+		return algo, nil
+	}
+
+	if repo != nil {
+		return repo.Algorithm(), nil
+	}
+
+	return objectid.AlgorithmSHA1, nil
+}