feat(op-deployer): interop dep set generation

Signed-off-by: Yashvardhan Kukreja <[email protected]>

Author: yashvardhan-kukreja

devnet-sdk/proofs/prestate/client.go

@@ -63,30 +63,34 @@ func WithInteropDepSet(content io.Reader) PrestateBuilderOption {
 	}
 }
 
-type dependency struct {
+type Dependency struct {
 	ChainIndex     uint32 `json:"chainIndex"`
 	ActivationTime uint64 `json:"activationTime"`
 	HistoryMinTime uint64 `json:"historyMinTime"`
 }
 
-type dependencySet struct {
-	Dependencies map[string]dependency `json:"dependencies"`
+type DependencySet struct {
+	Dependencies map[string]Dependency `json:"dependencies"`
 }
 
-func generateInteropDepSet(chains []string) ([]byte, error) {
-	deps := dependencySet{
-		Dependencies: make(map[string]dependency),
+func RenderInteropDepSet(chains []string) DependencySet {
+	deps := DependencySet{
+		Dependencies: make(map[string]Dependency),
 	}
 
 	for i, chain := range chains {
-		deps.Dependencies[chain] = dependency{
+		deps.Dependencies[chain] = Dependency{
 			ChainIndex:     uint32(i),
 			ActivationTime: 0,
 			HistoryMinTime: 0,
 		}
 	}
 
-	json, err := json.Marshal(deps)
+	return deps
+}
+
+func generateInteropDepSet(chains []string) ([]byte, error) {
+	json, err := json.Marshal(RenderInteropDepSet(chains))
 	if err != nil {
 		return nil, err
 	}

op-deployer/pkg/deployer/apply.go

@@ -361,6 +361,16 @@ func ApplyPipeline(
 		})
 	}
 
+	// Generate the interop dependency set if interop is enabled
+	if intent.UseInterop {
+		pline = append(pline, pipelineStage{
+			"generate-interop-depset",
+			func() error {
+				return pipeline.GenerateInteropDepset(ctx, pEnv, intent, st)
+			},
+		})
+	}
+
 	// Generate the prestate for all chains
 	pline = append(pline, pipelineStage{
 		"deploy-pre-state",

op-deployer/pkg/deployer/pipeline/interop_depset.go

@@ -0,0 +1,33 @@
+package pipeline
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/ethereum-optimism/optimism/devnet-sdk/proofs/prestate"
+	"github.com/ethereum-optimism/optimism/op-deployer/pkg/deployer/state"
+)
+
+func GenerateInteropDepset(ctx context.Context, pEnv *Env, globalIntent *state.Intent, st *state.State) error {
+	lgr := pEnv.Logger.New("stage", "generate-interop-depset")
+
+	if !globalIntent.UseInterop {
+		lgr.Warn("interop not enabled - skipping interop depset generation")
+		return nil
+	}
+
+	var chains []string
+	for _, chain := range globalIntent.Chains {
+		chains = append(chains, chain.ID.Big().String())
+	}
+
+	lgr.Info("rendering the interop dependency set...")
+	depSet := prestate.RenderInteropDepSet(chains)
+	st.InteropDepSet = &depSet
+
+	if err := pEnv.StateWriter.WriteState(st); err != nil {
+		return fmt.Errorf("failed to write state: %w", err)
+	}
+
+	return nil
+}

op-deployer/pkg/deployer/state/state.go

@@ -33,6 +33,9 @@ type State struct {
 	// PrestateManifest contains the prestate generated by the op-program-svc
 	PrestateManifest *prestate.PrestateManifest `json:"prestateManifest"`
 
+	// InteropDepSet contains the interop dependency set render by the prestate SDK if interop is enabled
+	InteropDepSet *prestate.DependencySet `json:"interopDepSet,omitempty"`
+
 	// SuperchainDeployment contains the addresses of the Superchain
 	// deployment. It only contains the proxies because the implementations
 	// can be looked up on chain.