tooling: update go, unit test workflows, linting

.github/workflows/pr-gofmt.yaml

@@ -0,0 +1,23 @@
+name: Go format check
+on:
+  pull_request:
+    types: ['opened', 'synchronize']
+
+jobs:
+  run-tests:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@44c2b7a8a4ea60a981eaca3cf939b5f4305c123b # v4.1.5
+
+      - uses: actions/setup-go@cdcb36043654635271a94b9a6d1392de5bb323a7 # v5.0.1
+        with:
+          go-version-file: ./.go-version
+
+      - name: Run go format
+        run: |-
+          files=$(gofmt -s -l .)
+          if [ -n "$files" ]; then
+            echo >&2 "The following file(s) are not gofmt compliant:"
+            echo >&2 "$files"
+            exit 1
+          fi

.github/workflows/pr-unit-tests-1.19.yaml

@@ -0,0 +1,17 @@
+name: Unit tests (Go 1.19)
+on:
+  pull_request:
+    types: ['opened', 'synchronize']
+
+jobs:
+  run-tests:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@44c2b7a8a4ea60a981eaca3cf939b5f4305c123b # v4.1.5
+
+      - uses: actions/setup-go@cdcb36043654635271a94b9a6d1392de5bb323a7 # v5.0.1
+        with:
+          go-version: 1.19
+
+      - name: Run unit tests
+        run: make test

.github/workflows/pr-unit-tests-1.20.yaml

@@ -0,0 +1,17 @@
+name: Unit tests (Go 1.20+)
+on:
+  pull_request:
+    types: ['opened', 'synchronize']
+
+jobs:
+  run-tests:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@44c2b7a8a4ea60a981eaca3cf939b5f4305c123b # v4.1.5
+
+      - uses: actions/setup-go@cdcb36043654635271a94b9a6d1392de5bb323a7 # v5.0.1
+        with:
+          go-version: 1.22
+
+      - name: Run unit tests
+        run: make test

.go-version

@@ -0,0 +1 @@
+1.22.2

Makefile

@@ -2,7 +2,7 @@ default: test
 
 test:
 	go vet ./...
-	go test -race ./...
+	go test -v -race ./...
 
 updatedeps:
 	go get -f -t -u ./...

client.go

@@ -30,7 +30,6 @@ import (
 	"crypto/x509"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"log"
 	"math"
 	"math/rand"
@@ -264,15 +263,15 @@ func getBodyReaderAndContentLength(rawBody interface{}) (ReaderFunc, int64, erro
 		raw := body
 		bodyReader = func() (io.Reader, error) {
 			_, err := raw.Seek(0, 0)
-			return ioutil.NopCloser(raw), err
+			return io.NopCloser(raw), err
 		}
 		if lr, ok := raw.(LenReader); ok {
 			contentLength = int64(lr.Len())
 		}
 
 	// Read all in so we can reset
 	case io.Reader:
-		buf, err := ioutil.ReadAll(body)
+		buf, err := io.ReadAll(body)
 		if err != nil {
 			return nil, 0, err
 		}
@@ -619,13 +618,13 @@ func LinearJitterBackoff(min, max time.Duration, attemptNum int, resp *http.Resp
 	}
 
 	// Seed rand; doing this every time is fine
-	rand := rand.New(rand.NewSource(int64(time.Now().Nanosecond())))
+	source := rand.New(rand.NewSource(int64(time.Now().Nanosecond())))
 
 	// Pick a random number that lies somewhere between the min and max and
 	// multiply by the attemptNum. attemptNum starts at zero so we always
 	// increment here. We first get a random percentage, then apply that to the
 	// difference between min and max, and add to min.
-	jitter := rand.Float64() * float64(max-min)
+	jitter := source.Float64() * float64(max-min)
 	jitterMin := int64(jitter) + int64(min)
 	return time.Duration(jitterMin * int64(attemptNum))
 }
@@ -675,7 +674,7 @@ func (c *Client) Do(req *Request) (*http.Response, error) {
 			if c, ok := body.(io.ReadCloser); ok {
 				req.Body = c
 			} else {
-				req.Body = ioutil.NopCloser(body)
+				req.Body = io.NopCloser(body)
 			}
 		}
 
@@ -820,7 +819,7 @@ func (c *Client) Do(req *Request) (*http.Response, error) {
 // Try to read the response body so we can reuse this connection.
 func (c *Client) drainBody(body io.ReadCloser) {
 	defer body.Close()
-	_, err := io.Copy(ioutil.Discard, io.LimitReader(body, respReadLimit))
+	_, err := io.Copy(io.Discard, io.LimitReader(body, respReadLimit))
 	if err != nil {
 		if c.logger() != nil {
 			switch v := c.logger().(type) {

client_test.go

@@ -9,7 +9,6 @@ import (
 	"errors"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"net"
 	"net/http"
 	"net/http/httptest"
@@ -206,7 +205,7 @@ func testClientDo(t *testing.T, body interface{}) {
 		}
 
 		// Check the payload
-		body, err := ioutil.ReadAll(r.Body)
+		body, err := io.ReadAll(r.Body)
 		if err != nil {
 			t.Fatalf("err: %s", err)
 		}
@@ -657,7 +656,7 @@ func testClientResponseLogHook(t *testing.T, l interface{}, buf *bytes.Buffer) {
 			}
 		} else {
 			// Log the response body when we get a 500
-			body, err := ioutil.ReadAll(resp.Body)
+			body, err := io.ReadAll(resp.Body)
 			if err != nil {
 				t.Fatalf("err: %v", err)
 			}
@@ -678,7 +677,7 @@ func testClientResponseLogHook(t *testing.T, l interface{}, buf *bytes.Buffer) {
 
 	// Make sure we can read the response body still, since we did not
 	// read or close it from the response log hook.
-	body, err := ioutil.ReadAll(resp.Body)
+	body, err := io.ReadAll(resp.Body)
 	if err != nil {
 		t.Fatalf("err: %v", err)
 	}
@@ -997,7 +996,7 @@ func TestClient_Post(t *testing.T) {
 		}
 
 		// Check the payload
-		body, err := ioutil.ReadAll(r.Body)
+		body, err := io.ReadAll(r.Body)
 		if err != nil {
 			t.Fatalf("err: %s", err)
 		}
@@ -1035,7 +1034,7 @@ func TestClient_PostForm(t *testing.T) {
 		}
 
 		// Check the payload
-		body, err := ioutil.ReadAll(r.Body)
+		body, err := io.ReadAll(r.Body)
 		if err != nil {
 			t.Fatalf("err: %s", err)
 		}

go.mod

@@ -2,7 +2,14 @@ module github.com/hashicorp/go-retryablehttp
 
 require (
 	github.com/hashicorp/go-cleanhttp v0.5.2
-	github.com/hashicorp/go-hclog v0.9.2
+	github.com/hashicorp/go-hclog v1.6.3
 )
 
-go 1.13
+require (
+	github.com/fatih/color v1.16.0 // indirect
+	github.com/mattn/go-colorable v0.1.13 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
+	golang.org/x/sys v0.20.0 // indirect
+)
+
+go 1.19

go.sum

@@ -1,10 +1,36 @@
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/fatih/color v1.13.0/go.mod h1:kLAiJbzzSOZDVNGyDpeOxJ47H46qBXwg5ILebYFFOfk=
+github.com/fatih/color v1.16.0 h1:zmkK9Ngbjj+K0yRhTVONQh1p/HknKYSlNT+vZCzyokM=
+github.com/fatih/color v1.16.0/go.mod h1:fL2Sau1YI5c0pdGEVCbKQbLXB6edEj1ZgiY4NijnWvE=
 github.com/hashicorp/go-cleanhttp v0.5.2 h1:035FKYIWjmULyFRBKPs8TBQoi0x6d9G4xc9neXJWAZQ=
 github.com/hashicorp/go-cleanhttp v0.5.2/go.mod h1:kO/YDlP8L1346E6Sodw+PrpBSV4/SoxCXGY6BqNFT48=
-github.com/hashicorp/go-hclog v0.9.2 h1:CG6TE5H9/JXsFWJCfoIVpKFIkFe6ysEuHirp4DxCsHI=
-github.com/hashicorp/go-hclog v0.9.2/go.mod h1:5CU+agLiy3J7N7QjHK5d05KxGsuXiQLrjA0H7acj2lQ=
+github.com/hashicorp/go-hclog v1.6.3 h1:Qr2kF+eVWjTiYmU7Y31tYlP1h0q/X3Nl3tPGdaB11/k=
+github.com/hashicorp/go-hclog v1.6.3/go.mod h1:W4Qnvbt70Wk/zYJryRzDRU/4r0kIg0PVHBcfoyhpF5M=
+github.com/mattn/go-colorable v0.1.9/go.mod h1:u6P/XSegPjTcexA+o6vUJrdnUu04hMope9wVRipJSqc=
+github.com/mattn/go-colorable v0.1.12/go.mod h1:u5H1YNBxpqRaxsYJYSkiCWKzEfiAb1Gb520KVy5xxl4=
+github.com/mattn/go-colorable v0.1.13 h1:fFA4WZxdEF4tXPZVKMLwD8oUnCTTo08duU7wxecdEvA=
+github.com/mattn/go-colorable v0.1.13/go.mod h1:7S9/ev0klgBDR4GtXTXX8a3vIGJpMovkB8vQcUbaXHg=
+github.com/mattn/go-isatty v0.0.12/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Kysco4FUpU=
+github.com/mattn/go-isatty v0.0.14/go.mod h1:7GGIvUiUoEMVVmxf/4nioHXj79iQHKdU27kJ6hsGG94=
+github.com/mattn/go-isatty v0.0.16/go.mod h1:kYGgaQfpe5nmfYZH+SKPsOc2e4SrIfOl2e/yFXSvRLM=
+github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
+github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/stretchr/testify v1.2.2 h1:bSDNvY7ZPG5RlJ8otE/7V6gMiyenm9RtJ7IUVIAoJ1w=
-github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.7.2 h1:4jaiDzPyXQvSd7D0EjG45355tLlV3VOECpq10pLC+8s=
+github.com/stretchr/testify v1.7.2/go.mod h1:R6va5+xMeoiuVRoj+gSkQ7d3FALtqAAGI1FQKckRals=
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