1 files changed, 41 insertions, 0 deletions
diff --git a/cmd/gitaly-git2go/featureflags.go b/cmd/gitaly-git2go/featureflags.go
new file mode 100644
index 000000000..720320901
--- /dev/null
+++ b/cmd/gitaly-git2go/featureflags.go
@@ -0,0 +1,41 @@
+//go:build static && system_libgit2 && gitaly_test
+
+package main
+
+import (
+	"context"
+	"encoding/gob"
+	"flag"
+
+	"gitlab.com/gitlab-org/gitaly/v15/internal/git2go"
+	"gitlab.com/gitlab-org/gitaly/v15/internal/metadata/featureflag"
+)
+
+// This subcommand is only called in tests, so we don't want to register it like
+// the other subcommands but instead will do it in an init block. The gitaly_test build
+// flag will guarantee that this is not built and registered in the
+// gitaly-git2go binary
+func init() {
+	subcommands["feature-flags"] = &featureFlagsSubcommand{}
+}
+
+type featureFlagsSubcommand struct{}
+
+func (featureFlagsSubcommand) Flags() *flag.FlagSet {
+	return flag.NewFlagSet("feature-flags", flag.ExitOnError)
+}
+
+func (featureFlagsSubcommand) Run(ctx context.Context, decoder *gob.Decoder, encoder *gob.Encoder) error {
+	var flags []git2go.FeatureFlag
+	for flag, value := range featureflag.FromContext(ctx) {
+		flags = append(flags, git2go.FeatureFlag{
+			Name:        flag.Name,
+			MetadataKey: flag.MetadataKey(),
+			Value:       value,
+		})
+	}
+
+	return encoder.Encode(git2go.FeatureFlags{
+		Flags: flags,
+	})
+}