Add golangci-lint (#279)

* Add golangci-lint-action

* Upgrading CodeQL to v2

* Fixed linting errors

---------

Co-authored-by: Christian Banse <oxisto@aybaze.com>

.github/workflows/build.yml

@@ -8,24 +8,12 @@ on:
     types: [opened, synchronize, reopened]
 
 jobs:
-  check:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v3
-      - uses: reviewdog/action-staticcheck@v1
-        with:
-          github_token: ${{ secrets.github_token }}
-          reporter: github-pr-review
-          filter_mode: nofilter
-          fail_on_error: true
-
   build:
     runs-on: ubuntu-latest
     strategy:
       fail-fast: false
       matrix:
-        go: ["1.18", "1.19", "1.20"]
+        go: ["1.18.x", "1.19.x", "1.20.x"]
     steps:
       - name: Checkout
         uses: actions/checkout@v3

.github/workflows/codeql-analysis.yml

@@ -13,12 +13,10 @@ name: "CodeQL"
 
 on:
   push:
-    branches: [ main ]
+    branches: [main]
-  # pull_request:
+  pull_request:
-    # The branches below must be a subset of the branches above
-    # branches: [ main ]
   schedule:
-    - cron: '31 10 * * 5'
+    - cron: "31 10 * * 5"
 
 jobs:
   analyze:
@@ -32,40 +30,40 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        language: [ 'go' ]
+        language: ["go"]
         # CodeQL supports [ 'cpp', 'csharp', 'go', 'java', 'javascript', 'python' ]
         # Learn more:
         # https://docs.github.com/en/free-pro-team@latest/github/finding-security-vulnerabilities-and-errors-in-your-code/configuring-code-scanning#changing-the-languages-that-are-analyzed
 
     steps:
-    - name: Checkout repository
+      - name: Checkout repository
-      uses: actions/checkout@v2
+        uses: actions/checkout@v2
 
-    # Initializes the CodeQL tools for scanning.
+      # Initializes the CodeQL tools for scanning.
-    - name: Initialize CodeQL
+      - name: Initialize CodeQL
-      uses: github/codeql-action/init@v1
+        uses: github/codeql-action/init@v2
-      with:
+        with:
-        languages: ${{ matrix.language }}
+          languages: ${{ matrix.language }}
-        # If you wish to specify custom queries, you can do so here or in a config file.
+          # If you wish to specify custom queries, you can do so here or in a config file.
-        # By default, queries listed here will override any specified in a config file.
+          # By default, queries listed here will override any specified in a config file.
-        # Prefix the list here with "+" to use these queries and those in the config file.
+          # Prefix the list here with "+" to use these queries and those in the config file.
-        # queries: ./path/to/local/query, your-org/your-repo/queries@main
+          # queries: ./path/to/local/query, your-org/your-repo/queries@main
 
-    # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
+      # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
-    # If this step fails, then you should remove it and run the build manually (see below)
+      # If this step fails, then you should remove it and run the build manually (see below)
-    - name: Autobuild
+      - name: Autobuild
-      uses: github/codeql-action/autobuild@v1
+        uses: github/codeql-action/autobuild@v2
 
-    # ℹ️ Command-line programs to run using the OS shell.
+      # ℹ️ Command-line programs to run using the OS shell.
-    # 📚 https://git.io/JvXDl
+      # 📚 https://git.io/JvXDl
 
-    # ✏️ If the Autobuild fails above, remove it and uncomment the following three lines
+      # ✏️ If the Autobuild fails above, remove it and uncomment the following three lines
-    #    and modify them (or add more) to build your code if your project
+      #    and modify them (or add more) to build your code if your project
-    #    uses a compiled language
+      #    uses a compiled language
 
-    #- run: |
+      #- run: |
-    #   make bootstrap
+      #   make bootstrap
-    #   make release
+      #   make release
 
-    - name: Perform CodeQL Analysis
+      - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v1
+        uses: github/codeql-action/analyze@v2

.github/workflows/lint.yml

@@ -0,0 +1,43 @@
+name: golangci
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+jobs:
+  golangci:
+    name: lint
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+      - name: Setup Go
+        uses: actions/setup-go@v3
+        with:
+          go-version: "1.20.x"
+          check-latest: true
+          cache: true
+      - name: golangci-lint
+        uses: golangci/golangci-lint-action@v3
+        with:
+          # Optional: version of golangci-lint to use in form of v1.2 or v1.2.3 or `latest` to use the latest version
+          version: latest
+
+          # Optional: working directory, useful for monorepos
+          # working-directory: somedir
+
+          # Optional: golangci-lint command line arguments.
+          # args: --issues-exit-code=0
+
+          # Optional: show only new issues if it's a pull request. The default value is `false`.
+          # only-new-issues: true
+
+          # Optional: if set to true then the all caching functionality will be complete disabled,
+          #           takes precedence over all other caching options.
+          # skip-cache: true
+
+          # Optional: if set to true then the action don't cache or restore ~/go/pkg.
+          # skip-pkg-cache: true
+
+          # Optional: if set to true then the action don't cache or restore ~/.cache/go-build.
+          # skip-build-cache: true

example_test.go

@@ -38,7 +38,7 @@ func ExampleNewWithClaims_customClaimsType() {
 		jwt.RegisteredClaims
 	}
 
-	// Create the claims
+	// Create claims with multiple fields populated
 	claims := MyCustomClaims{
 		"bar",
 		jwt.RegisteredClaims{
@@ -53,6 +53,8 @@ func ExampleNewWithClaims_customClaimsType() {
 		},
 	}
 
+	fmt.Printf("foo: %v\n", claims.Foo)
+
 	// Create claims while leaving out some of the optional fields
 	claims = MyCustomClaims{
 		"bar",
@@ -67,7 +69,8 @@ func ExampleNewWithClaims_customClaimsType() {
 	ss, err := token.SignedString(mySigningKey)
 	fmt.Printf("%v %v", ss, err)
 
-	//Output: eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJmb28iOiJiYXIiLCJpc3MiOiJ0ZXN0IiwiZXhwIjoxNTE2MjM5MDIyfQ.xVuY2FZ_MRXMIEgVQ7J-TFtaucVFRXUzHm9LmV41goM <nil>
+	//Output: foo: bar
+	//eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJmb28iOiJiYXIiLCJpc3MiOiJ0ZXN0IiwiZXhwIjoxNTE2MjM5MDIyfQ.xVuY2FZ_MRXMIEgVQ7J-TFtaucVFRXUzHm9LmV41goM <nil>
 }
 
 // Example creating a token using a custom claims type.  The RegisteredClaims is embedded

http_example_test.go

@@ -94,7 +94,8 @@ func Example_getTokenViaHTTP() {
 
 	// Read the token out of the response body
 	buf := new(bytes.Buffer)
-	io.Copy(buf, res.Body)
+	_, err = io.Copy(buf, res.Body)
+	fatal(err)
 	res.Body.Close()
 	tokenString := strings.TrimSpace(buf.String())
 
@@ -129,7 +130,8 @@ func Example_useTokenViaHTTP() {
 
 	// Read the response body
 	buf := new(bytes.Buffer)
-	io.Copy(buf, res.Body)
+	_, err = io.Copy(buf, res.Body)
+	fatal(err)
 	res.Body.Close()
 	fmt.Println(buf.String())
 

request/extractor.go

@@ -38,8 +38,8 @@ func (e HeaderExtractor) ExtractToken(req *http.Request) (string, error) {
 type ArgumentExtractor []string
 
 func (e ArgumentExtractor) ExtractToken(req *http.Request) (string, error) {
-	// Make sure form is parsed
+	// Make sure form is parsed. We are explicitly ignoring errors at this point
-	req.ParseMultipartForm(10e6)
+	_ = req.ParseMultipartForm(10e6)
 
 	// loop over arg names and return the first one that contains data
 	for _, arg := range e {

token_test.go

@@ -72,7 +72,7 @@ func BenchmarkToken_SigningString(b *testing.B) {
 		b.ResetTimer()
 		b.ReportAllocs()
 		for i := 0; i < b.N; i++ {
-			t.SigningString()
+			_, _ = t.SigningString()
 		}
 	})
 }