EVG-18584 Upgrade go to go1.19 (#6285)

.golangci.yml

@@ -3,17 +3,11 @@ linters:
   disable-all: true
   enable:
     - asciicheck
-    - deadcode
     - errcheck
     - ineffassign
     - goimports
     - gosimple
     - govet
     - misspell
-    - structcheck
     - unconvert
     - unused
-
-linters-settings:
-  govet:
-    check-shadowing: false

agent/agent_command_test.go

@@ -2,7 +2,6 @@ package agent
 
 import (
 	"context"
-	"io/ioutil"
 	"os"
 	"strings"
 	"testing"
@@ -80,7 +79,7 @@ func (s *CommandSuite) TestPreErrorFailsWithSetup() {
 }
 
 func (s *CommandSuite) TestShellExec() {
-	f, err := ioutil.TempFile(s.tmpDirName, "shell-exec-")
+	f, err := os.CreateTemp(s.tmpDirName, "shell-exec-")
 	s.Require().NoError(err)
 	defer os.Remove(f.Name())
 
@@ -122,7 +121,7 @@ func (s *CommandSuite) TestShellExec() {
 	s.Contains(detail.Description, "shell.exec")
 	s.False(detail.TimedOut)
 
-	data, err := ioutil.ReadFile(tmpFile)
+	data, err := os.ReadFile(tmpFile)
 	s.Require().NoError(err)
 	s.Equal("shell.exec test message", strings.Trim(string(data), "\r\n"))
 

agent/agent_test.go

@@ -3,7 +3,6 @@ package agent
 import (
 	"context"
 	"fmt"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"strings"
@@ -75,7 +74,7 @@ func (s *AgentSuite) SetupTest() {
 	factory, ok := command.GetCommandFactory("setup.initial")
 	s.True(ok)
 	s.tc.setCurrentCommand(factory())
-	s.tmpDirName, err = ioutil.TempDir("", filepath.Base(s.T().Name()))
+	s.tmpDirName, err = os.MkdirTemp("", filepath.Base(s.T().Name()))
 	s.Require().NoError(err)
 	s.tc.taskDirectory = s.tmpDirName
 	sender, err := s.a.GetSender(ctx, evergreen.LocalLoggingOverride)

agent/agent_timeout_test.go

@@ -2,7 +2,6 @@ package agent
 
 import (
 	"context"
-	"io/ioutil"
 	"os"
 	"strings"
 	"testing"
@@ -43,7 +42,7 @@ func (s *TimeoutSuite) SetupTest() {
 	var err error
 
 	s.tmpDirName = s.T().TempDir()
-	s.tmpFile, err = ioutil.TempFile(s.tmpDirName, "timeout")
+	s.tmpFile, err = os.CreateTemp(s.tmpDirName, "timeout")
 	s.Require().NoError(err)
 
 	s.tmpFileName = s.tmpFile.Name()
@@ -115,7 +114,7 @@ func (s *TimeoutSuite) TestExecTimeoutProject() {
 	s.Equal(1*time.Second, detail.TimeoutDuration)
 	s.EqualValues(execTimeout, detail.TimeoutType)
 
-	data, err := ioutil.ReadFile(s.tmpFileName)
+	data, err := os.ReadFile(s.tmpFileName)
 	s.Require().NoError(err)
 	s.Equal("timeout test message", strings.Trim(string(data), "\r\n"))
 
@@ -183,7 +182,7 @@ func (s *TimeoutSuite) TestExecTimeoutTask() {
 	s.Equal(1*time.Second, detail.TimeoutDuration)
 	s.EqualValues(execTimeout, detail.TimeoutType)
 
-	data, err := ioutil.ReadFile(s.tmpFileName)
+	data, err := os.ReadFile(s.tmpFileName)
 	s.Require().NoError(err)
 	s.Equal("timeout test message", strings.Trim(string(data), "\r\n"))
 
@@ -250,7 +249,7 @@ func (s *TimeoutSuite) TestIdleTimeoutFunc() {
 	s.Equal(1*time.Second, detail.TimeoutDuration)
 	s.EqualValues(idleTimeout, detail.TimeoutType)
 
-	data, err := ioutil.ReadFile(s.tmpFileName)
+	data, err := os.ReadFile(s.tmpFileName)
 	s.Require().NoError(err)
 	s.Equal("timeout test message", strings.Trim(string(data), "\r\n"))
 
@@ -317,7 +316,7 @@ func (s *TimeoutSuite) TestIdleTimeoutCommand() {
 	s.Equal(1*time.Second, detail.TimeoutDuration)
 	s.EqualValues(idleTimeout, detail.TimeoutType)
 
-	data, err := ioutil.ReadFile(s.tmpFileName)
+	data, err := os.ReadFile(s.tmpFileName)
 	s.Require().NoError(err)
 	s.Equal("timeout test message", strings.Trim(string(data), "\r\n"))
 
@@ -384,7 +383,7 @@ func (s *TimeoutSuite) TestDynamicIdleTimeout() {
 	s.Equal(2*time.Second, detail.TimeoutDuration)
 	s.EqualValues(idleTimeout, detail.TimeoutType)
 
-	data, err := ioutil.ReadFile(s.tmpFileName)
+	data, err := os.ReadFile(s.tmpFileName)
 	s.Require().NoError(err)
 	s.Equal("timeout test message", strings.Trim(string(data), "\r\n"))
 
@@ -451,7 +450,7 @@ func (s *TimeoutSuite) TestDynamicExecTimeoutTask() {
 	s.Equal(2*time.Second, detail.TimeoutDuration)
 	s.EqualValues(execTimeout, detail.TimeoutType)
 
-	data, err := ioutil.ReadFile(s.tmpFileName)
+	data, err := os.ReadFile(s.tmpFileName)
 	s.Require().NoError(err)
 	s.Equal("timeout test message", strings.Trim(string(data), "\r\n"))
 

agent/command/archive_tarball_create_test.go

@@ -2,7 +2,6 @@ package command
 
 import (
 	"context"
-	"io/ioutil"
 	"os"
 	"os/exec"
 	"path/filepath"
@@ -101,7 +100,7 @@ func TestTarGzCommandMakeArchive(t *testing.T) {
 
 			Convey("the correct files should be included and excluded", func() {
 
-				target, err := ioutil.TempFile("", "target.tgz")
+				target, err := os.CreateTemp("", "target.tgz")
 				require.NoError(t, err)
 				defer func() {
 					assert.NoError(t, os.RemoveAll(target.Name()))

agent/command/attach_artifacts_test.go

@@ -2,7 +2,6 @@ package command
 
 import (
 	"context"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"testing"
@@ -138,10 +137,10 @@ func (s *ArtifactsSuite) TestCommandParsesFile() {
 
 func (s *ArtifactsSuite) TestPrefixectoryEmptySubDir() {
 	dir := s.T().TempDir()
-	err := ioutil.WriteFile(filepath.Join(dir, "foo"), []byte("[{}]"), 0644)
+	err := os.WriteFile(filepath.Join(dir, "foo"), []byte("[{}]"), 0644)
 	s.Require().NoError(err)
 	s.Require().NoError(os.Mkdir(filepath.Join(dir, "subDir"), 0755))
-	err = ioutil.WriteFile(filepath.Join(dir, "subDir", "bar"), []byte("[{}]"), 0644)
+	err = os.WriteFile(filepath.Join(dir, "subDir", "bar"), []byte("[{}]"), 0644)
 	s.Require().NoError(err)
 	s.conf.WorkDir = dir
 	s.cmd.Files = []string{"*"}
@@ -151,10 +150,10 @@ func (s *ArtifactsSuite) TestPrefixectoryEmptySubDir() {
 
 func (s *ArtifactsSuite) TestPrefixectoryWithSubDir() {
 	dir := s.T().TempDir()
-	err := ioutil.WriteFile(filepath.Join(dir, "foo"), []byte("[{}]"), 0644)
+	err := os.WriteFile(filepath.Join(dir, "foo"), []byte("[{}]"), 0644)
 	s.Require().NoError(err)
 	s.Require().NoError(os.Mkdir(filepath.Join(dir, "subDir"), 0755))
-	err = ioutil.WriteFile(filepath.Join(dir, "subDir", "bar"), []byte("[{}]"), 0644)
+	err = os.WriteFile(filepath.Join(dir, "subDir", "bar"), []byte("[{}]"), 0644)
 	s.Require().NoError(err)
 	s.conf.WorkDir = dir
 	s.cmd.Files = []string{"*"}

agent/command/command_test.go

@@ -1,7 +1,7 @@
 package command
 
 import (
-	"io/ioutil"
+	"os"
 	"testing"
 
 	"github.com/evergreen-ci/evergreen"
@@ -12,7 +12,7 @@ import (
 
 func setupTestPatchData(apiData *modelutil.TestModelData, patchPath string, t *testing.T) error {
 	if patchPath != "" {
-		modulePatchContent, err := ioutil.ReadFile(patchPath)
+		modulePatchContent, err := os.ReadFile(patchPath)
 		require.NoError(t, err)
 
 		patch := &patch.Patch{

agent/command/downstream_expansions_set.go

@@ -2,7 +2,6 @@ package command
 
 import (
 	"context"
-	"io/ioutil"
 	"os"
 
 	"github.com/evergreen-ci/evergreen"
@@ -87,7 +86,7 @@ func (c *setDownstream) Execute(ctx context.Context,
 }
 
 func (c *setDownstream) ParseFromFile(filename string) error {
-	filedata, err := ioutil.ReadFile(filename)
+	filedata, err := os.ReadFile(filename)
 	if err != nil {
 		return err
 	}

agent/command/expansion_test.go

@@ -2,7 +2,6 @@ package command
 
 import (
 	"context"
-	"io/ioutil"
 	"os"
 	"testing"
 
@@ -93,21 +92,21 @@ func TestExpansionWriter(t *testing.T) {
 			"password": true,
 		},
 	}
-	f, err := ioutil.TempFile("", t.Name())
+	f, err := os.CreateTemp("", t.Name())
 	require.NoError(err)
 	defer os.Remove(f.Name())
 
 	writer := &expansionsWriter{File: f.Name()}
 	err = writer.Execute(ctx, comm, logger, tc)
 	assert.NoError(err)
-	out, err := ioutil.ReadFile(f.Name())
+	out, err := os.ReadFile(f.Name())
 	assert.NoError(err)
 	assert.Equal("baz: qux\nfoo: bar\n", string(out))
 
 	writer = &expansionsWriter{File: f.Name(), Redacted: true}
 	err = writer.Execute(ctx, comm, logger, tc)
 	assert.NoError(err)
-	out, err = ioutil.ReadFile(f.Name())
+	out, err = os.ReadFile(f.Name())
 	assert.NoError(err)
 	assert.Equal("baz: qux\nfoo: bar\npassword: hunter2\n", string(out))
 }

agent/command/expansion_write.go

@@ -2,7 +2,7 @@ package command
 
 import (
 	"context"
-	"io/ioutil"
+	"os"
 
 	"github.com/evergreen-ci/evergreen"
 	"github.com/evergreen-ci/evergreen/agent/internal"
@@ -60,7 +60,7 @@ func (c *expansionsWriter) Execute(ctx context.Context,
 		return errors.Wrap(err, "marshalling expansions")
 	}
 	fn := getJoinedWithWorkDir(conf, c.File)
-	if err := ioutil.WriteFile(fn, out, 0600); err != nil {
+	if err := os.WriteFile(fn, out, 0600); err != nil {
 		return errors.Wrapf(err, "writing expansions to file '%s'", fn)
 	}
 	logger.Task().Infof("Expansions written to file '%s'.", fn)

agent/command/generate.go

@@ -3,7 +3,7 @@ package command
 import (
 	"context"
 	"encoding/json"
-	"io/ioutil"
+	"io"
 	"os"
 	"strings"
 	"time"
@@ -146,7 +146,7 @@ func generateTaskForFile(fn string, conf *internal.TaskConfig) ([]byte, error) {
 	defer jsonFile.Close()
 
 	var data []byte
-	data, err = ioutil.ReadAll(jsonFile)
+	data, err = io.ReadAll(jsonFile)
 	if err != nil {
 		return nil, errors.Wrapf(err, "reading from file '%s'", fn)
 	}

agent/command/generate_test.go

@@ -3,7 +3,6 @@ package command
 import (
 	"context"
 	"encoding/json"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"testing"
@@ -92,7 +91,7 @@ func (s *generateSuite) TestExecuteFileDoesNotExist() {
 }
 
 func (s *generateSuite) TestExecuteFailsWithGeneratePollError() {
-	f, err := ioutil.TempFile(s.tmpDirName, "")
+	f, err := os.CreateTemp(s.tmpDirName, "")
 	s.Require().NoError(err)
 	tmpFile := f.Name()
 	tmpFileBase := filepath.Base(tmpFile)
@@ -109,7 +108,7 @@ func (s *generateSuite) TestExecuteFailsWithGeneratePollError() {
 }
 
 func (s *generateSuite) TestExecuteSuccess() {
-	f, err := ioutil.TempFile(s.tmpDirName, "")
+	f, err := os.CreateTemp(s.tmpDirName, "")
 	s.Require().NoError(err)
 	tmpFile := f.Name()
 	tmpFileBase := filepath.Base(tmpFile)
@@ -133,7 +132,7 @@ func (s *generateSuite) TestOptional() {
 }
 
 func (s *generateSuite) TestExecuteSuccessWithValidGlobbing() {
-	f, err := ioutil.TempFile(s.tmpDirName, "")
+	f, err := os.CreateTemp(s.tmpDirName, "")
 	s.Require().NoError(err)
 	tmpFile := f.Name()
 	defer os.Remove(tmpFile)
@@ -161,7 +160,7 @@ func (s *generateSuite) TestErrorWithInvalidExpansions() {
 }
 
 func (s *generateSuite) TestNoErrorWithValidExpansions() {
-	f, err := ioutil.TempFile(s.tmpDirName, "")
+	f, err := os.CreateTemp(s.tmpDirName, "")
 	s.Require().NoError(err)
 	tmpFile := f.Name()
 	tmpFileBase := filepath.Base(tmpFile)

agent/command/git.go

@@ -5,7 +5,6 @@ import (
 	"context"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"net/url"
 	"os"
 	"path/filepath"
@@ -920,11 +919,11 @@ func (c *gitFetchProject) applyPatch(ctx context.Context, logger client.LoggerPr
 
 		// create a temporary folder and store patch files on disk,
 		// for later use in shell script
-		tempFile, err := ioutil.TempFile("", "mcipatch_")
+		tempFile, err := os.CreateTemp("", "mcipatch_")
 		if err != nil {
 			return errors.WithStack(err)
 		}
-		defer func() { //nolint: evg-lint
+		defer func() { //nolint:evg-lint
 			grip.Error(tempFile.Close())
 			grip.Error(os.Remove(tempFile.Name()))
 		}()

agent/command/git_push_test.go

@@ -4,7 +4,7 @@ import (
 	"bytes"
 	"context"
 	"fmt"
-	"io/ioutil"
+	"os"
 	"path"
 	"strings"
 	"testing"
@@ -97,8 +97,8 @@ func TestGitPush(t *testing.T) {
 			c.DryRun = true
 
 			repoDir := t.TempDir()
-			require.NoError(t, ioutil.WriteFile(path.Join(repoDir, "test1.txt"), []byte("test1"), 0644))
-			require.NoError(t, ioutil.WriteFile(path.Join(repoDir, "test2.txt"), []byte("test2"), 0644))
+			require.NoError(t, os.WriteFile(path.Join(repoDir, "test1.txt"), []byte("test1"), 0644))
+			require.NoError(t, os.WriteFile(path.Join(repoDir, "test2.txt"), []byte("test2"), 0644))
 
 			// create repo
 			createRepoCommands := []string{
@@ -109,7 +109,7 @@ func TestGitPush(t *testing.T) {
 			cmd := jpm.CreateCommand(ctx).Directory(repoDir).Append(createRepoCommands...)
 			require.NoError(t, cmd.Run(ctx))
 
-			require.NoError(t, ioutil.WriteFile(path.Join(repoDir, "test3.txt"), []byte("test3"), 0644))
+			require.NoError(t, os.WriteFile(path.Join(repoDir, "test3.txt"), []byte("test3"), 0644))
 			toApplyCommands := []string{
 				`git rm test1.txt`,
 				`git add test3.txt`,

agent/command/host_create.go

@@ -3,7 +3,7 @@ package command
 import (
 	"context"
 	"fmt"
-	"io/ioutil"
+	"io"
 	"os"
 	"path/filepath"
 	"time"
@@ -267,7 +267,7 @@ func (c *createHost) populateUserdata() error {
 		return errors.Wrap(err, "opening user data file")
 	}
 	defer file.Close()
-	fileData, err := ioutil.ReadAll(file)
+	fileData, err := io.ReadAll(file)
 	if err != nil {
 		return errors.Wrap(err, "reading user data file")
 	}