ci: Add linter stage to workflow

Ensure that submitted merge requests are run through a linter check to keep
high code quality.

Signed-off-by: Christopher Obbard <chris.obbard@collabora.com>

.github/workflows/ci.yaml

@@ -16,7 +16,22 @@ on:
  workflow_dispatch:
 
 jobs:
+ golangci:
+ name: lint
+ runs-on: ubuntu-latest
+ defaults:
+ run:
+ shell: bash
+ container:
+ image: ghcr.io/go-debos/test-containers/debos-trixie:main
+ steps:
+ - uses: actions/setup-go@v4
+ - uses: actions/checkout@v3
+ - name: golangci-lint
+ uses: golangci/golangci-lint-action@v3
+
  test:
+ needs: lint
  strategy:
  fail-fast: false
  matrix:
@@ -177,6 +192,7 @@ jobs:
  name: allgreen
  if: always()
  needs:
+ - lint
  - unit-tests
  - recipe-tests
  runs-on: ubuntu-latest

.golangci.yml

@@ -0,0 +1,5 @@
+linters:
+ enable:
+ - gofmt
+ - stylecheck
+ - whitespace