feat: new proving agent

yarn-project/bb-prover/src/bb/execute.ts

@@ -43,6 +43,7 @@ export type BBSuccess = {
 export type BBFailure = {
   status: BB_RESULT.FAILURE;
   reason: string;
+  retry?: boolean;
 };
 
 export type BBResult = BBSuccess | BBFailure;
@@ -175,6 +176,7 @@ export async function generateKeyForNoirCircuit(
       return {
         status: BB_RESULT.FAILURE,
         reason: `Failed to generate key. Exit code: ${result.exitCode}. Signal ${result.signal}.`,
+        retry: !!result.signal,
       };
     } catch (error) {
       return { status: BB_RESULT.FAILURE, reason: `${error}` };
@@ -245,6 +247,7 @@ export async function executeBbClientIvcProof(
     return {
       status: BB_RESULT.FAILURE,
       reason: `Failed to generate proof. Exit code ${result.exitCode}. Signal ${result.signal}.`,
+      retry: !!result.signal,
     };
   } catch (error) {
     return { status: BB_RESULT.FAILURE, reason: `${error}` };
@@ -324,6 +327,7 @@ export async function computeVerificationKey(
     return {
       status: BB_RESULT.FAILURE,
       reason: `Failed to write VK. Exit code ${result.exitCode}. Signal ${result.signal}.`,
+      retry: !!result.signal,
     };
   } catch (error) {
     return { status: BB_RESULT.FAILURE, reason: `${error}` };
@@ -396,6 +400,7 @@ export async function generateProof(
     return {
       status: BB_RESULT.FAILURE,
       reason: `Failed to generate proof. Exit code ${result.exitCode}. Signal ${result.signal}.`,
+      retry: !!result.signal,
     };
   } catch (error) {
     return { status: BB_RESULT.FAILURE, reason: `${error}` };
@@ -470,6 +475,7 @@ export async function generateTubeProof(
     return {
       status: BB_RESULT.FAILURE,
       reason: `Failed to generate proof. Exit code ${result.exitCode}. Signal ${result.signal}.`,
+      retry: !!result.signal,
     };
   } catch (error) {
     return { status: BB_RESULT.FAILURE, reason: `${error}` };
@@ -573,6 +579,7 @@ export async function generateAvmProof(
     return {
       status: BB_RESULT.FAILURE,
       reason: `Failed to generate proof. Exit code ${result.exitCode}. Signal ${result.signal}.`,
+      retry: !!result.signal,
     };
   } catch (error) {
     return { status: BB_RESULT.FAILURE, reason: `${error}` };
@@ -648,6 +655,7 @@ export async function verifyClientIvcProof(
     return {
       status: BB_RESULT.FAILURE,
       reason: `Failed to verify proof. Exit code ${result.exitCode}. Signal ${result.signal}.`,
+      retry: !!result.signal,
     };
   } catch (error) {
     return { status: BB_RESULT.FAILURE, reason: `${error}` };
@@ -690,6 +698,7 @@ async function verifyProofInternal(
     return {
       status: BB_RESULT.FAILURE,
       reason: `Failed to verify proof. Exit code ${result.exitCode}. Signal ${result.signal}.`,
+      retry: !!result.signal,
     };
   } catch (error) {
     return { status: BB_RESULT.FAILURE, reason: `${error}` };
@@ -730,6 +739,7 @@ export async function writeVkAsFields(
     return {
       status: BB_RESULT.FAILURE,
       reason: `Failed to create vk as fields. Exit code ${result.exitCode}. Signal ${result.signal}.`,
+      retry: !!result.signal,
     };
   } catch (error) {
     return { status: BB_RESULT.FAILURE, reason: `${error}` };
@@ -772,6 +782,7 @@ export async function writeProofAsFields(
     return {
       status: BB_RESULT.FAILURE,
       reason: `Failed to create proof as fields. Exit code ${result.exitCode}. Signal ${result.signal}.`,
+      retry: !!result.signal,
     };
   } catch (error) {
     return { status: BB_RESULT.FAILURE, reason: `${error}` };
@@ -813,6 +824,7 @@ export async function generateContractForVerificationKey(
       return {
         status: BB_RESULT.FAILURE,
         reason: `Failed to write verifier contract. Exit code ${result.exitCode}. Signal ${result.signal}.`,
+        retry: !!result.signal,
       };
     } catch (error) {
       return { status: BB_RESULT.FAILURE, reason: `${error}` };

yarn-project/bb-prover/src/prover/bb_prover.ts

@@ -1,6 +1,7 @@
 /* eslint-disable require-await */
 import {
   type ProofAndVerificationKey,
+  ProvingError,
   type PublicInputsAndRecursiveProof,
   type ServerCircuitProver,
   makeProofAndVerificationKey,
@@ -477,7 +478,7 @@ export class BBNativeRollupProver implements ServerCircuitProver {
 
     if (provingResult.status === BB_RESULT.FAILURE) {
       logger.error(`Failed to generate proof for ${circuitType}: ${provingResult.reason}`);
-      throw new Error(provingResult.reason);
+      throw new ProvingError(provingResult.reason, provingResult, provingResult.retry);
     }
 
     // Ensure our vk cache is up to date
@@ -538,7 +539,7 @@ export class BBNativeRollupProver implements ServerCircuitProver {
 
     if (provingResult.status === BB_RESULT.FAILURE) {
       logger.error(`Failed to generate AVM proof for ${input.functionName}: ${provingResult.reason}`);
-      throw new Error(provingResult.reason);
+      throw new ProvingError(provingResult.reason, provingResult, provingResult.retry);
     }
 
     return provingResult;
@@ -555,7 +556,7 @@ export class BBNativeRollupProver implements ServerCircuitProver {
 
     if (provingResult.status === BB_RESULT.FAILURE) {
       logger.error(`Failed to generate proof for tube proof: ${provingResult.reason}`);
-      throw new Error(provingResult.reason);
+      throw new ProvingError(provingResult.reason, provingResult, provingResult.retry);
     }
     return provingResult;
   }
@@ -724,7 +725,7 @@ export class BBNativeRollupProver implements ServerCircuitProver {
 
       if (result.status === BB_RESULT.FAILURE) {
         const errorMessage = `Failed to verify proof from key!`;
-        throw new Error(errorMessage);
+        throw new ProvingError(errorMessage, result, result.retry);
       }
 
       logger.info(`Successfully verified proof from key in ${result.durationMs} ms`);
@@ -785,7 +786,7 @@ export class BBNativeRollupProver implements ServerCircuitProver {
 
       if (result.status === BB_RESULT.FAILURE) {
         const errorMessage = `Failed to convert ${circuit} proof to fields, ${result.reason}`;
-        throw new Error(errorMessage);
+        throw new ProvingError(errorMessage, result, result.retry);
       }
 
       const proofString = await fs.readFile(path.join(bbWorkingDirectory, PROOF_FIELDS_FILENAME), {
@@ -825,7 +826,11 @@ export class BBNativeRollupProver implements ServerCircuitProver {
         logger.debug,
       ).then(result => {
         if (result.status === BB_RESULT.FAILURE) {
-          throw new Error(`Failed to generate verification key for ${circuitType}, ${result.reason}`);
+          throw new ProvingError(
+            `Failed to generate verification key for ${circuitType}, ${result.reason}`,
+            result,
+            result.retry,
+          );
         }
         return extractVkData(result.vkPath!);
       });

yarn-project/circuit-types/src/index.ts

@@ -22,3 +22,4 @@ export * from './simulation_error.js';
 export * from './tx/index.js';
 export * from './tx_effect.js';
 export * from './tx_execution_request.js';
+export * from './proving_error.js';

yarn-project/circuit-types/src/proving_error.ts

@@ -0,0 +1,18 @@
+/**
+ * An error thrown when generating a proof fails.
+ */
+export class ProvingError extends Error {
+  public static readonly NAME = 'ProvingError';
+
+  /**
+   * Creates a new instance
+   * @param message - The error message.
+   * @param cause - The cause of the error.
+   * @param retry - Whether the proof should be retried.
+   */
+  constructor(message: string, cause?: unknown, public readonly retry: boolean = false) {
+    super(message);
+    this.name = ProvingError.NAME;
+    this.cause = cause;
+  }
+}