Use golangci-lint instead of golint

.github/workflows/ci.yml

@@ -1,7 +1,7 @@
 name: CI
 
 env:
-  go-version: '1.19'
+  go-version: "1.19"
 
 on:
   pull_request:
@@ -12,7 +12,7 @@ on:
 jobs:
   quicktests:
     env:
-      execute: 'true'
+      execute: "true"
     runs-on: ubuntu-latest
     timeout-minutes: 5
     steps:
@@ -30,11 +30,25 @@ jobs:
           make install
           make test-tidy
           make test-fmt
-          # make lint
       - name: Mark the job as succeeded
         if: env.execute == 'false'
         run: exit 0
 
+  lint:
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+    steps:
+      - name: checkout
+        uses: actions/checkout@v3
+      - name: set up go
+        uses: actions/setup-go@v3
+        with:
+          go-version: ${{ env.go-version }}
+      - name: setup env
+        run: make install
+      - name: lint
+        run: make lint-github-action
+
   unittests:
     runs-on: ${{ matrix.os }}
     timeout-minutes: 15

.gitignore

@@ -1,3 +1,4 @@
 .idea
 libgpu-setup-*
 build
+bin

.golangci.yml

@@ -0,0 +1,262 @@
+# This file contains all available configuration options
+# Modified for linting cmd/ and pkg/
+
+# options for analysis running
+run:
+  # default concurrency is a available CPU number
+  # concurrency: 4
+
+  # timeout for analysis, e.g. 30s, 5m, default is 1m
+  deadline: 3m
+
+  # exit code when at least one issue was found, default is 1
+  issues-exit-code: 1
+
+  # include test files or not, default is true
+  tests: true
+
+  # list of build tags, all linters use it. Default is empty list.
+  # build-tags:
+
+  # which dirs to skip: they won't be analyzed;
+  # can use regexp here: generated.*, regexp is applied on full path;
+  # default value is empty list, but next dirs are always skipped independently
+  # from this option's value:
+  #   	vendor$, third_party$, testdata$, examples$, Godeps$, builtin$
+  # skip-dirs:
+
+  # which files to skip: they will be analyzed, but issues from them
+  # won't be reported. Default value is empty list, but there is
+  # no need to include all autogenerated files, we confidently recognize
+  # autogenerated files. If it's not please let us know.
+  skip-files:
+    - "^mock_*\\.go$"
+
+  # by default isn't set. If set we pass it to "go list -mod={option}". From "go help modules":
+  # If invoked with -mod=readonly, the go command is disallowed from the implicit
+  # automatic updating of go.mod described above. Instead, it fails when any changes
+  # to go.mod are needed. This setting is most useful to check that go.mod does
+  # not need updates, such as in a continuous integration and testing system.
+  # If invoked with -mod=vendor, the go command assumes that the vendor
+  # directory holds the correct copies of dependencies and ignores
+  # the dependency descriptions in go.mod.
+  modules-download-mode: mod
+
+# output configuration options
+output:
+  # colored-line-number|line-number|json|tab|checkstyle, default is "colored-line-number"
+  format: colored-line-number
+
+  # print lines of code with issue, default is true
+  print-issued-lines: true
+
+  # print linter name in the end of issue text, default is true
+  print-linter-name: true
+
+# all available settings of specific linters
+linters-settings:
+  staticcheck:
+    # Select the Go version to target. The default is '1.13'.
+    go: "1.19"
+    # https://staticcheck.io/docs/options#checks
+    checks: ["all"]
+
+  errcheck:
+    # report about not checking of errors in type assertions: `a := b.(MyStruct)`;
+    # default is false: such cases aren't reported by default.
+    check-type-assertions: false
+
+    # report about assignment of errors to blank identifier: `num, _ := strconv.Atoi(numStr)`;
+    # default is false: such cases aren't reported by default.
+    check-blank: true
+  govet:
+    # report about shadowed variables
+    check-shadowing: true
+
+    # Obtain type information from installed (to $GOPATH/pkg) package files:
+    # golangci-lint will execute `go install -i` and `go test -i` for analyzed packages
+    # before analyzing them.
+    # By default this option is disabled and govet gets type information by loader from source code.
+    # Loading from source code is slow, but it's done only once for all linters.
+    # Go-installing of packages first time is much slower than loading them from source code,
+    # therefore this option is disabled by default.
+    # But repeated installation is fast in go >= 1.10 because of build caching.
+    # Enable this option only if all conditions are met:
+    #  1. you use only "fast" linters (--fast e.g.): no program loading occurs
+    #  2. you use go >= 1.10
+    #  3. you do repeated runs (false for CI) or cache $GOPATH/pkg or `go env GOCACHE` dir in CI.
+    use-installed-packages: false
+  revive:
+    # Sets the default failure confidence.
+    # This means that linting errors with less than 0.8 confidence will be ignored.
+    # Default: 0.8
+    confidence: 0.8
+  gofmt:
+    # simplify code: gofmt with `-s` option, true by default
+    simplify: true
+  gocyclo:
+    # minimal code complexity to report, 30 by default (but we recommend 10-20)
+    min-complexity: 10
+  maligned:
+    # print struct with more effective memory layout or not, false by default
+    suggest-new: true
+  dupl:
+    # tokens count to trigger issue, 150 by default
+    threshold: 100
+  goconst:
+    # minimal length of string constant, 3 by default
+    min-len: 3
+    # minimal occurrences count to trigger, 3 by default
+    min-occurrences: 3
+  depguard:
+    list-type: blacklist
+    include-go-root: false
+    packages:
+      - github.com/pkg/errors
+  misspell:
+    # Correct spellings using locale preferences for US or UK.
+    # Default is to use a neutral variety of English.
+    # Setting locale to US will correct the British spelling of 'colour' to 'color'.
+    locale: US
+  lll:
+    # max line length, lines longer will be reported. Default is 120.
+    # '\t' is counted as 1 character by default, and can be changed with the tab-width option
+    line-length: 120
+    # tab width in spaces. Default to 1.
+    tab-width: 1
+  unused:
+    # treat code as a program (not a library) and report unused exported identifiers; default is false.
+    # XXX: if you enable this setting, unused will report a lot of false-positives in text editors:
+    # if it's called for subdir of a project it can't find funcs usages. All text editor integrations
+    # with golangci-lint call it on a directory with the changed file.
+    check-exported: false
+  unparam:
+    # call graph construction algorithm (cha, rta). In general, use cha for libraries,
+    # and rta for programs with main packages. Default is cha.
+    algo: cha
+
+    # Inspect exported functions, default is false. Set to true if no external program/library imports your code.
+    # XXX: if you enable this setting, unparam will report a lot of false-positives in text editors:
+    # if it's called for subdir of a project it can't find external interfaces. All text editor integrations
+    # with golangci-lint call it on a directory with the changed file.
+    check-exported: false
+  nakedret:
+    # make an issue if func has more lines of code than this setting and it has naked returns; default is 30
+    max-func-lines: 30
+  prealloc:
+    # XXX: we don't recommend using this linter before doing performance profiling.
+    # For most programs usage of prealloc will be a premature optimization.
+
+    # Report preallocation suggestions only on simple loops that have no returns/breaks/continues/gotos in them.
+    # True by default.
+    simple: true
+    range-loops: true # Report preallocation suggestions on range loops, true by default
+    for-loops: false # Report preallocation suggestions on for loops, false by default
+  goimports:
+    local-prefixes: github.com/spacemeshos/go-spacemesh
+  gci:
+    sections:
+      - standard
+      - default
+      - prefix(github.com/spacemeshos/go-spacemesh)
+  godot:
+    # comments to be checked: `declarations`, `toplevel`, or `all`
+    scope: declarations
+    # list of regexps for excluding particular comment lines from check
+    exclude: []
+    # example: exclude comments which contain numbers
+    # - '[0-9]+'
+    # check that each sentence starts with a capital letter
+    capital: false
+  gofumpt:
+    # Select the Go version to target. The default is `1.15`.
+    lang-version: "1.19"
+    # Choose whether or not to use the extra rules that are disabled
+    # by default
+    extra-rules: false
+  whitespace:
+    multi-if: false # Enforces newlines (or comments) after every multi-line if statement
+    multi-func: false # Enforces newlines (or comments) after every multi-line function signature
+  wrapcheck:
+    # An array of strings that specify substrings of signatures to ignore.
+    # If this set, it will override the default set of ignored signatures.
+    # See https://github.com/tomarrell/wrapcheck#configuration for more information.
+    ignoreSigs:
+      # Default sigs
+      - .Errorf(
+      - errors.New(
+      - errors.Unwrap(
+      - .Wrap(
+      - .Wrapf(
+      - .WithMessage(
+      - .WithMessagef(
+      - .WithStack(
+      # Custom sigs
+      - .Error(
+      - .Err(
+    ignorePackageGlobs:
+      - encoding/*
+      - github.com/pkg/*
+
+linters:
+  # TODO(nkryuchkov): enable needed linters
+  enable:
+    - gci
+    - godot
+    - gofmt
+    - gofumpt
+    - revive
+    - misspell
+    - staticcheck
+    - whitespace
+    # - wrapcheck
+    # - varcheck
+    # - unparam
+    # - deadcode
+    # - structcheck
+    # - errcheck
+    # - gosimple
+    # - unused
+    # - ineffassign
+    # - typecheck
+    # - gosec
+    # - megacheck
+    # - nakedret
+    # - depguard
+  enable-all: false
+  # disable:
+  disable-all: true
+  # presets:
+  fast: false
+
+issues:
+  # List of regexps of issue texts to exclude, empty list by default.
+  # But independently from this option we use default exclude patterns,
+  # it can be disabled by `exclude-use-default: false`. To list all
+  # excluded by default patterns execute `golangci-lint run --help`
+  # exclude:
+
+  exclude-rules:
+    - linters:
+        - staticcheck
+      text: SA1019
+
+  # Independently from option `exclude` we use default exclude patterns,
+  # it can be disabled by this option. To list all
+  # excluded by default patterns execute `golangci-lint run --help`.
+  # Default value for this option is true.
+  exclude-use-default: false
+
+  # Maximum issues count per one linter. Set to 0 to disable. Default is 50.
+  max-per-linter: 0
+
+  # Maximum count of issues with the same text. Set to 0 to disable. Default is 3.
+  max-same: 0
+
+  # Show only new issues: if there are unstaged changes or untracked files,
+  # only those changes are analyzed, else only changes in HEAD~ are analyzed.
+  # It's a super-useful option for integration of golangci-lint into existing
+  # large codebase. It's not practical to fix all existing issues at the moment
+  # of integration: much better don't allow issues in new code.
+  # Default is false.
+  new: false

Makefile

@@ -17,7 +17,7 @@ endif
 
 install: get-gpu-setup
 	go mod download
-	GO111MODULE=off go get golang.org/x/lint/golint
+	curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s v1.50.0
 .PHONY: install
 
 tidy:
@@ -39,7 +39,17 @@ test-fmt:
 	git diff --exit-code || (git --no-pager diff && git checkout . && exit 1)
 .PHONY: test-fmt
 
-lint:
-	golint --set_exit_status ./...
+lint: get-gpu-setup
 	go vet ./...
+	./bin/golangci-lint run --config .golangci.yml
 .PHONY: lint
+
+# Auto-fixes golangci-lint issues where possible.
+lint-fix: get-gpu-setup
+	./bin/golangci-lint run --config .golangci.yml --fix
+.PHONY: lint-fix
+
+lint-github-action: get-gpu-setup
+	go vet ./...
+	./bin/golangci-lint run --config .golangci.yml --out-format=github-actions
+.PHONY: lint-github-action

Makefile.Inc

@@ -47,7 +47,9 @@ else
   endif
 endif
 
-$(info "OS: $(OS), HOST_OS: $(HOST_OS), GOOS: $(GOOS), GOARCH: $(GOARH), BIN_DIR: $(BIN_DIR), platform: $(platform)")
+ifneq ($(VERBOSE),)
+  $(info "OS: $(OS), HOST_OS: $(HOST_OS), GOOS: $(GOOS), GOARCH: $(GOARH), BIN_DIR: $(BIN_DIR), platform: $(platform)")
+endif
 
 GPU_SETUP_REV = 0.1.24
 GPU_SETUP_ZIP = libgpu-setup-$(platform)-$(GPU_SETUP_REV).zip

gpu/bridge.go

@@ -64,7 +64,7 @@ func (s StopResult) String() string {
 	case StopResultErrorAlready:
 		return "already stopped"
 	case StopResultErrorCancelled:
-		return "cancelled"
+		return "canceled"
 	default:
 		panic("unreachable")
 	}

initialization/initialization_test.go

@@ -292,6 +292,7 @@ func TestValidateMetadata(t *testing.T) {
 
 	m, err := init.loadMetadata()
 	r.Equal(ErrStateMetadataFileMissing, err)
+	r.Nil(m)
 
 	err = init.Initialize()
 	r.NoError(err)

persistence/filewriter.go

@@ -53,7 +53,7 @@ func (w *FileWriter) NumLabelsWritten() (uint64, error) {
 func (w *FileWriter) Truncate(numLabels uint64) error {
 	bitSize := numLabels * uint64(w.bitsPerLabel)
 	if bitSize%8 != 0 {
-		return fmt.Errorf("invalid `numLabels`; expected: evenly divisible by 8 (alone, or when multipled by `labelSize`), given: %d", numLabels)
+		return fmt.Errorf("invalid `numLabels`; expected: evenly divisible by 8 (alone, or when multiplied by `labelSize`), given: %d", numLabels)
 	}
 
 	size := int64(bitSize / 8)

proving/proving.go

@@ -189,7 +189,7 @@ func (p *Prover) tryNonce(ctx context.Context, numLabels uint64, ch Challenge, n
 	for {
 		select {
 		case <-ctx.Done():
-			return nil, fmt.Errorf("cancelled: tried: %v, passed: %v, needed: %v", index, passed, p.cfg.K2)
+			return nil, fmt.Errorf("canceled: tried: %v, passed: %v, needed: %v", index, passed, p.cfg.K2)
 		case label, more := <-readerChan:
 			if !more {
 				return nil, fmt.Errorf("exhausted all labels; tried: %v, passed: %v, needed: %v", index, passed, p.cfg.K2)

shared/granularity_specific_io_test.go

@@ -10,8 +10,8 @@ import (
 
 var NewGranSpecificReader = shared.NewGranSpecificReader
 
-// change to simple array instead of file writing
 func TestGranSpecificReader_BitGranular(t *testing.T) {
+	// TODO(moshababo): change to simple array instead of file writing
 	req := require.New(t)
 
 	// Write one byte ([0b11111111])