add misspell, gofmt and unconvert linters (#160)

.githooks/pre-push.bash

@@ -8,9 +8,4 @@ if [ -z "$commits" ]; then
     exit 0
 fi
 
-if ! command -v golangci-lint &> /dev/null; then
-    echo "installing golangci-lint..."
-    go get -u github.com/golangci/golangci-lint/cmd/golangci-lint
-fi
-
-make lint vet test-race
+make build lint vet test-race
\ No newline at end of file

.github/workflows/go.yml

@@ -26,6 +26,10 @@ jobs:
         echo "::set-env name=GOPATH::$(go env GOPATH)"
         echo "::add-path::$(go env GOPATH)/bin"
       shell: bash
+    - name: Set git to use LF
+      # make sure that line endings are not converted on windows
+      # as gofmt linter will report that they need to be changed
+      run: git config --global core.autocrlf false
     - name: Checkout
       uses: actions/checkout@v2
       with:

.golangci.yml

 run:
   timeout: 10m
+linters:
+  enable:
+    - misspell
+    - gofmt
+    - unconvert

Makefile

 GO ?= go
 GOLANGCI_LINT ?= golangci-lint
+GOLANGCI_LINT_VERSION ?= v1.26.0
 
 LDFLAGS ?= -s -w
 ifdef COMMIT
@@ -7,7 +8,7 @@ LDFLAGS += -X github.com/ethersphere/bee.commit="$(COMMIT)"
 endif
 
 .PHONY: all
-all: build lint vet test binary
+all: build lint vet test-race binary
 
 .PHONY: binary
 binary: export CGO_ENABLED=0
@@ -19,9 +20,13 @@ dist:
 	mkdir $@
 
 .PHONY: lint
-lint:
+lint: linter
 	$(GOLANGCI_LINT) run
 
+.PHONY: linter
+linter:
+	which $(GOLANGCI_LINT) || ( cd /tmp && GO111MODULE=on $(GO) get -u github.com/golangci/golangci-lint/cmd/golangci-lint@$(GOLANGCI_LINT_VERSION) )
+
 .PHONY: vet
 vet:
 	$(GO) vet ./...

pkg/p2p/libp2p/internal/breaker/breaker.go

@@ -30,22 +30,22 @@ var (
 
 type Interface interface {
 	// Execute runs f() if the limit number of consecutive failed calls is not reached within fail interval.
-	// f() call is not locked so it can still be executed concurently.
+	// f() call is not locked so it can still be executed concurrently.
 	// Returns `ErrClosed` if the limit is reached or f() result otherwise.
 	Execute(f func() error) error
 
-	// ClosedUntil retuns the timestamp when the breaker will become open again.
+	// ClosedUntil returns the timestamp when the breaker will become open again.
 	ClosedUntil() time.Time
 }
 
 type breaker struct {
-	limit                int // breaker will not exeucute any more tasks after limit number of consequtive failuers happen
-	consFailedCalls      int // current number of consequtive fails
+	limit                int // breaker will not execute any more tasks after limit number of consecutive failures happen
+	consFailedCalls      int // current number of consecutive fails
 	firstFailedTimestamp time.Time
 	closedTimestamp      time.Time
 	backoff              time.Duration // initial backoff duration
 	maxBackoff           time.Duration
-	failInterval         time.Duration // consequitive failures are counted if they happen withing this interval
+	failInterval         time.Duration // consecutive failures are counted if they happen within this interval
 	mtx                  sync.Mutex
 }
 

pkg/pushsync/metrics.go

@@ -47,13 +47,13 @@ func newMetrics() metrics {
 			Namespace: m.Namespace,
 			Subsystem: subsystem,
 			Name:      "total_chunk_synced",
-			Help:      "Total chunks synced succesfully with valid receipts.",
+			Help:      "Total chunks synced successfully with valid receipts.",
 		}),
 		TotalChunksStoredInDB: prometheus.NewCounter(prometheus.CounterOpts{
 			Namespace: m.Namespace,
 			Subsystem: subsystem,
 			Name:      "total_chunk_stored_in_DB",
-			Help:      "Total chunks stored succesfully in local store.",
+			Help:      "Total chunks stored successfully in local store.",
 		}),
 		ChunksSentCounter: prometheus.NewCounter(prometheus.CounterOpts{
 			Namespace: m.Namespace,

pkg/pushsync/pushsync.go

@@ -111,7 +111,7 @@ func (ps *PushSync) handler(ctx context.Context, p p2p.Peer, stream p2p.Stream)
 			}
 			ps.metrics.TotalChunksStoredInDB.Inc()
 
-			// Send a receipt immediately once the storage of the chunk is successfull
+			// Send a receipt immediately once the storage of the chunk is successful
 			receipt := &pb.Receipt{Address: chunk.Address().Bytes()}
 			err = ps.sendReceipt(w, receipt)
 			if err != nil {
@@ -133,7 +133,7 @@ func (ps *PushSync) handler(ctx context.Context, p p2p.Peer, stream p2p.Stream)
 		}
 		ps.metrics.TotalChunksStoredInDB.Inc()
 
-		// Send a receipt immediately once the storage of the chunk is successfull
+		// Send a receipt immediately once the storage of the chunk is successful
 		receipt := &pb.Receipt{Address: chunk.Address().Bytes()}
 		return ps.sendReceipt(w, receipt)
 	}

pkg/validator/validator_test.go

@@ -7,8 +7,8 @@ import (
 	"encoding/binary"
 	"testing"
 
-	"github.com/ethersphere/bee/pkg/validator"
 	"github.com/ethersphere/bee/pkg/swarm"
+	"github.com/ethersphere/bee/pkg/validator"
 )
 
 // TestContentAddressValidator checks that the validator evaluates correctly
@@ -28,7 +28,7 @@ func TestContentAddressValidator(t *testing.T) {
 	fooLength := len(foo)
 	fooBytes := make([]byte, 8+fooLength)
 	binary.LittleEndian.PutUint64(fooBytes, uint64(fooLength))
-	copy(fooBytes[8:], []byte(foo))
+	copy(fooBytes[8:], foo)
 	ch := swarm.NewChunk(address, fooBytes)
 	if !validator.Validate(ch) {
 		t.Fatalf("data '%s' should have validated to hash '%s'", ch.Data(), ch.Address())