run golangci-lint on Github Actions instead of Travis

.github/workflows/lint.yml

@@ -0,0 +1,13 @@
+on: [push, pull_request]
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Check that no non-test files import Ginkgo or Gomega
+        run: .github/workflows/no_ginkgo.sh
+      - name: golangci-lint
+        uses: golangci/golangci-lint-action@v1
+        with:
+          # Required: the version of golangci-lint is required and must be specified without patch version: we always use the latest patch version.
+          version: v1.30

.travis.yml

@@ -13,7 +13,6 @@ env:
   global:
     - TIMESCALE_FACTOR=20
   matrix:
-    - TRAVIS_GOARCH=amd64 TESTMODE=lint
     - TRAVIS_GOARCH=amd64 TESTMODE=unit
     - TRAVIS_GOARCH=amd64 TESTMODE=integration
     - TRAVIS_GOARCH=386 TESTMODE=unit
@@ -30,10 +29,6 @@ before_install:
   - travis_retry go get -t ./...
 
 script:
-  - | 
-    if [ ${TESTMODE} == "lint" ]; then
-      travis_retry curl -sfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s v1.27.0
-    fi
   - .travis/script.sh
 
 

.travis/script.sh

@@ -2,11 +2,6 @@
 
 set -ex
 
-if [ "${TESTMODE}" == "lint" ]; then
-  .travis/no_ginkgo.sh
-  ./bin/golangci-lint run ./...
-fi
-
 if [ "${TESTMODE}" == "unit" ]; then
   ginkgo -r -v -cover -randomizeAllSpecs -randomizeSuites -trace -skipPackage integrationtests,benchmark
   # run unit tests with the Go race detector