Org-wide linter (#48)

.github/workflows/run_tests.yml

@@ -8,6 +8,10 @@ on:
   workflow_dispatch:
 
 jobs:
+  lint:
+    name: Linter
+    uses: nspcc-dev/.github/.github/workflows/go-linter.yml@master
+
   test_cover:
     name: Coverage
     runs-on: ubuntu-latest

.gitignore

@@ -3,3 +3,4 @@ in/
 locode_db
 *.csv
 !override.csv
+.golangci.yml

Makefile

@@ -4,7 +4,7 @@ VERSION ?= "$(shell git describe --tags --match "v*" --dirty --always --abbrev=8
 LOCODEDB ?= pkg/locodedb/data
 UNLOCODEREVISION = 600bdf54c4777a7328123d16166b1f8bbc7ee359
 
-.PHONY: all clean version help generate
+.PHONY: all clean version help generate lint
 
 DIRS = in ${LOCODEDB}
 
@@ -53,6 +53,13 @@ compress_locodedb: generate
 	    fi \
 	done
 
+.golangci.yml:
+	wget -O $@ https://github.com/nspcc-dev/.github/raw/master/.golangci.yml
+
+# Lint Go code
+lint: .golangci.yml
+	golangci-lint run
+
 # Print version
 version:
 	@echo $(VERSION)

pkg/locodedb/calls_test.go

@@ -68,6 +68,5 @@ func TestGet(t *testing.T) {
 	t.Run("valid key", func(t *testing.T) {
 		_, err := locodedb.NewKey("RU", "MOW")
 		require.NoError(t, err)
-
 	})
 }

pkg/locodedb/utils.go

@@ -60,7 +60,7 @@ func unpackCountriesData(data []byte) (map[CountryCode]countryData, error) {
 
 	for {
 		record, err := reader.Read()
-		if err == io.EOF {
+		if errors.Is(err, io.EOF) {
 			break
 		} else if err != nil {
 			return m, err
@@ -84,7 +84,7 @@ func unpackLocodesData(data []byte, mc map[CountryCode]countryData) (string, err
 
 	for {
 		record, err := reader.Read()
-		if err == io.EOF {
+		if errors.Is(err, io.EOF) {
 			break
 		} else if err != nil {
 			return "", err