Add Go linting stage to CI

rustfmt appears to be a little more complicated since it wants to
download dependencies and needs nightly Rust.

Change-Id: Ia348def30a6459ae2ab6c29a8c3a413216f5eb4b

Dockerfile.lint

@@ -0,0 +1,12 @@
+# syntax=docker.io/docker/dockerfile:experimental@sha256:de85b2f3a3e8a2f7fe48e8e84a65f6fdd5cd5183afa6412fff9caa6871649c44
+FROM docker.io/golang:1.17.0@sha256:06e92e576fc7a7067a268d47727f3083c0a564331bfcbfdde633157fc91fb17d AS go
+
+RUN useradd -u 1000 -U -m -d /home/lint lint
+USER 1000
+WORKDIR /home/lint
+
+RUN curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | \
+	sh -s -- -b ~ v1.42.0
+
+RUN --mount=type=bind,target=/app,source=node cd /app && \
+ 	GOGC=off ~/golangci-lint run --skip-dirs pkg/supervisor ./...

jenkins-presubmit.groovy

@@ -4,6 +4,7 @@ pipeline {
     agent none
     stages {
         stage('Parallel') {
+            failFast true
             parallel {
                 stage('Test') {
                     agent {
@@ -35,11 +36,9 @@ pipeline {
                     }
                     post {
                         success {
-                            gerritReview labels: [Verified: 1]
                             gerritCheck checks: ['jenkins:test': 'SUCCESSFUL']
                         }
                         unsuccessful {
-                            gerritReview labels: [Verified: -1]
                             gerritCheck checks: ['jenkins:test': 'FAILED']
                         }
                         cleanup {
@@ -47,6 +46,40 @@ pipeline {
                         }
                     }
                 }
+                stage('Lint') {
+                    agent {
+                        node {
+                            label ""
+                            customWorkspace '/home/ci/wormhole'
+                        }
+                    }
+                    steps {
+                        gerritCheck checks: ['jenkins:linters': 'RUNNING'], message: "Running on ${env.NODE_NAME}"
+
+                        echo "Gerrit change: ${GERRIT_CHANGE_URL}"
+
+                        timeout(time: 1, unit: 'MINUTES') {
+                            sh "make generate"
+                            sh "./lint.sh"
+                        }
+                    }
+                    post {
+                        success {
+                            gerritCheck checks: ['jenkins:linters': 'SUCCESSFUL']
+                        }
+                        unsuccessful {
+                            gerritCheck checks: ['jenkins:linters': 'FAILED']
+                        }
+                    }
+                }
+            }
+            post {
+                success {
+                    gerritReview labels: [Verified: 1]
+                }
+                unsuccessful {
+                    gerritReview labels: [Verified: -1]
+                }
             }
         }
     }

lint.sh

@@ -0,0 +1,3 @@
+#!/usr/bin/env bash
+
+DOCKER_BUILDKIT=1 tilt docker build -- -f Dockerfile.lint .

node/cmd/guardiand/adminnodes.go

@@ -65,9 +65,9 @@ func runListNodes(cmd *cobra.Command, args []string) {
 	w := tabwriter.NewWriter(os.Stdout, 0, 8, 2, ' ', 0)
 
 	if showDetails {
-		w.Write([]byte("Node key\tGuardian key\tNode name\tVersion\tLast seen\tUptime\tSolana\tEthereum\tTerra\tBSC\n"))
+		_, _ = w.Write([]byte("Node key\tGuardian key\tNode name\tVersion\tLast seen\tUptime\tSolana\tEthereum\tTerra\tBSC\n"))
 	} else {
-		w.Write([]byte("Node key\tGuardian key\tNode name\tVersion\tLast seen\tSolana\tEthereum\tTerra\tBSC\n"))
+		_, _ = w.Write([]byte("Node key\tGuardian key\tNode name\tVersion\tLast seen\tSolana\tEthereum\tTerra\tBSC\n"))
 	}
 
 	for _, h := range nodes {

node/cmd/guardiand/adminserver.go

@@ -158,6 +158,9 @@ func adminServiceRunnable(logger *zap.Logger, socketPath string, injectC chan<-
 	// The umask avoids a race condition between file creation and chmod.
 
 	laddr, err := net.ResolveUnixAddr("unix", socketPath)
+	if err != nil {
+		return nil, fmt.Errorf("invalid listen address: %v", err)
+	}
 	l, err := net.ListenUnix("unix", laddr)
 	if err != nil {
 		return nil, fmt.Errorf("failed to listen on %s: %w", socketPath, err)

node/cmd/guardiand/node.go

@@ -536,18 +536,14 @@ func runNode(cmd *cobra.Command, args []string) {
 
 		logger.Info("Started internal services")
 
-		select {
-		case <-ctx.Done():
-			return nil
-		}
+		<-ctx.Done()
+		return nil
 	},
 		// It's safer to crash and restart the process in case we encounter a panic,
 		// rather than attempting to reschedule the runnable.
 		supervisor.WithPropagatePanic)
 
-	select {
-	case <-rootCtx.Done():
-		logger.Info("root context cancelled, exiting...")
-		// TODO: wait for things to shut down gracefully
-	}
+	<-rootCtx.Done()
+	logger.Info("root context cancelled, exiting...")
+	// TODO: wait for things to shut down gracefully
 }

node/pkg/devnet/guardianset_vaa.go

@@ -82,7 +82,7 @@ func GetKeyedTransactor(ctx context.Context) *bind.TransactOpts {
 		panic(err)
 	}
 
-	kt := bind.NewKeyedTransactor(key)
+	kt := bind.NewKeyedTransactor(key) // nolint
 	kt.Context = ctx
 
 	return kt

node/pkg/processor/cleanup.go

@@ -49,7 +49,7 @@ func (p *Processor) handleCleanup(ctx context.Context) {
 	aggregationStateEntries.Set(float64(len(p.state.vaaSignatures)))
 
 	for hash, s := range p.state.vaaSignatures {
-		delta := time.Now().Sub(s.firstObserved)
+		delta := time.Since(s.firstObserved)
 
 		switch {
 		case !s.settled && delta.Seconds() >= 30:

node/pkg/processor/observation.go

@@ -39,16 +39,6 @@ var (
 			Name: "wormhole_observations_unknown_total",
 			Help: "Total number of verified observations we haven't seen ourselves",
 		})
-	observationsDirectSubmissionsTotal = promauto.NewCounterVec(
-		prometheus.CounterOpts{
-			Name: "wormhole_observations_direct_submissions_queued_total",
-			Help: "Total number of observations for a specific target chain that were queued for direct submission",
-		}, []string{"target_chain"})
-	observationsDirectSubmissionSuccessTotal = promauto.NewCounterVec(
-		prometheus.CounterOpts{
-			Name: "wormhole_observations_direct_submission_success_total",
-			Help: "Total number of observations for a specific target chain that succeeded",
-		}, []string{"target_chain"})
 )
 
 // handleObservation processes a remote VAA observation, verifies it, checks whether the VAA has met quorum,

node/pkg/readiness/health.go

@@ -55,7 +55,7 @@ func Handler(w http.ResponseWriter, r *http.Request) {
 
 	mu.Lock()
 	for k, v := range registry {
-		_, err = fmt.Fprintln(resp, fmt.Sprintf("%s\t%v", k, v))
+		_, err = fmt.Fprintf(resp, "%s\t%v\n", k, v)
 		if err != nil {
 			panic(err)
 		}

terra/contracts/token-bridge/src/contract.rs

@@ -562,11 +562,13 @@ fn handle_initiate_transfer<S: Storage, A: Api, Q: Querier>(
             amount = Uint128(
                 amount
                     .u128()
-                    .checked_sub(amount.u128().checked_rem(multiplier).unwrap()).unwrap(),
+                    .checked_sub(amount.u128().checked_rem(multiplier).unwrap())
+                    .unwrap(),
             );
             fee = Uint128(
                 fee.u128()
-                    .checked_sub(fee.u128().checked_rem(multiplier).unwrap()).unwrap(),
+                    .checked_sub(fee.u128().checked_rem(multiplier).unwrap())
+                    .unwrap(),
             );
 
             // This is a regular asset, transfer its balance