Merge pull request #14012 from mjtrangoni/fix-megacheck-issues

Fix last megacheck issues

.circleci/config.yml

@@ -85,12 +85,13 @@ jobs:
       - run: 'go get -u github.com/tsenart/deadcode'
       - run: 'go get -u github.com/jgautheron/goconst/cmd/goconst'
       - run: 'go get -u github.com/gordonklaus/ineffassign'
+      - run: 'go get -u honnef.co/go/tools/cmd/megacheck'
       - run: 'go get -u github.com/opennota/check/cmd/structcheck'
       - run: 'go get -u github.com/mdempsky/unconvert'
       - run: 'go get -u github.com/opennota/check/cmd/varcheck'
       - run:
           name: run linters
-          command: 'gometalinter --enable-gc --vendor --deadline 10m --disable-all --enable=deadcode --enable=goconst --enable=ineffassign --enable=structcheck --enable=unconvert --enable=varcheck ./...'
+          command: 'gometalinter --enable-gc --vendor --deadline 10m --disable-all --enable=deadcode --enable=goconst --enable=ineffassign --enable=megacheck --enable=structcheck --enable=unconvert --enable=varcheck ./...'
       - run:
           name: run go vet
           command: 'go vet ./pkg/...'

pkg/tsdb/influxdb/influxdb.go

@@ -96,16 +96,15 @@ func (e *InfluxDBExecutor) Query(ctx context.Context, dsInfo *models.DataSource,
 }
 
 func (e *InfluxDBExecutor) getQuery(dsInfo *models.DataSource, queries []*tsdb.Query, context *tsdb.TsdbQuery) (*Query, error) {
-	for _, v := range queries {
-
-		query, err := e.QueryParser.Parse(v.Model, dsInfo)
+	// The model supports multiple queries, but right now this is only used from
+	// alerting so we only needed to support batch executing 1 query at a time.
+	if len(queries) > 0 {
+		query, err := e.QueryParser.Parse(queries[0].Model, dsInfo)
 		if err != nil {
 			return nil, err
 		}
-
 		return query, nil
 	}
-
 	return nil, fmt.Errorf("query request contains no queries")
 }
 

scripts/build/release_publisher/publisher_test.go

@@ -3,19 +3,20 @@ package main
 import "testing"
 
 func TestPreparingReleaseFromRemote(t *testing.T) {
+
+	var builder releaseBuilder
+
 	versionIn := "v5.2.0-beta1"
 	expectedVersion := "5.2.0-beta1"
 	whatsNewUrl := "https://whatsnews.foo/"
 	relNotesUrl := "https://relnotes.foo/"
 	expectedArch := "amd64"
 	expectedOs := "linux"
-	buildArtifacts := []buildArtifact{{expectedOs,expectedArch, ".linux-amd64.tar.gz"}}
-
-	var builder releaseBuilder
+	buildArtifacts := []buildArtifact{{expectedOs, expectedArch, ".linux-amd64.tar.gz"}}
 
 	builder = releaseFromExternalContent{
-		getter:     mockHttpGetter{},
-		rawVersion: versionIn,
+		getter:                 mockHttpGetter{},
+		rawVersion:             versionIn,
 		artifactConfigurations: buildArtifactConfigurations,
 	}
 
@@ -50,7 +51,6 @@ func (mockHttpGetter) getContents(url string) (string, error) {
 	return url, nil
 }
 
-
 func TestPreparingReleaseFromLocal(t *testing.T) {
 	whatsNewUrl := "https://whatsnews.foo/"
 	relNotesUrl := "https://relnotes.foo/"
@@ -60,7 +60,7 @@ func TestPreparingReleaseFromLocal(t *testing.T) {
 	var builder releaseBuilder
 	testDataPath := "testdata"
 	builder = releaseLocalSources{
-		path:                   testDataPath,
+		path: testDataPath,
 		artifactConfigurations: buildArtifactConfigurations,
 	}
 
@@ -93,7 +93,7 @@ func TestPreparingReleaseFromLocal(t *testing.T) {
 	expectedOs := "win"
 
 	builder = releaseLocalSources{
-		path:                   testDataPath,
+		path: testDataPath,
 		artifactConfigurations: []buildArtifact{{
 			os:         expectedOs,
 			arch:       expectedArch,