chore(mc2mc): add linter

.github/workflows/lint.yml

@@ -0,0 +1,30 @@
+name: lint
+
+on:
+  pull_request:
+    branches: [main, master]
+    paths:
+      - 'mc2mc/**'
+
+permissions:
+  contents: read
+
+jobs:
+  golangci-lint:
+    name: golangci-lint
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version-file: mc2mc/go.mod
+          cache: false
+
+      - name: Run golangci-lint
+        uses: golangci/golangci-lint-action@v8
+        with:
+          version: v2.10.1
+          working-directory: mc2mc

.github/workflows/release.yml

@@ -7,6 +7,26 @@ on:
       - 'mc2mc/v*'
 
 jobs:
+  lint:
+    if: startsWith(github.ref, 'refs/tags/mc2mc/v')
+    name: golangci-lint
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version-file: mc2mc/go.mod
+          cache: false
+
+      - name: Run golangci-lint
+        uses: golangci/golangci-lint-action@v8
+        with:
+          version: v2.10.1
+          working-directory: mc2mc
+
   bq2bq:
     if: startsWith(github.ref, 'refs/tags/bq2bq/v')
     runs-on: ubuntu-latest
@@ -44,6 +64,7 @@ jobs:
         run: docker logout
   mc2mc:
     if: startsWith(github.ref, 'refs/tags/mc2mc/v')
+    needs: lint
     runs-on: ubuntu-latest
     steps:
       - name: Checkout

mc2mc/.golangci.yml

@@ -0,0 +1,18 @@
+version: "2"
+
+linters:
+  default: none
+  enable:
+    - govet
+    - staticcheck
+    - ineffassign
+    - unused
+    - copyloopvar
+  settings:
+    staticcheck:
+      checks:
+        - "SA*"
+
+issues:
+  max-issues-per-linter: 0
+  max-same-issues: 0