Fixup spinner data race

Add spinner lock

go.mod

@@ -7,7 +7,7 @@ require (
 	github.com/Sabayon/pkgs-checker v0.7.2
 	github.com/asaskevich/govalidator v0.0.0-20200907205600-7a23bdc65eef
 	github.com/asdine/storm v0.0.0-20190418133842-e0f77eada154
-	github.com/briandowns/spinner v1.7.0
+	github.com/briandowns/spinner v1.12.1-0.20201220203425-e201aaea0a31
 	github.com/cavaliercoder/grab v1.0.1-0.20201108051000-98a5bfe305ec
 	github.com/containerd/containerd v1.4.1-0.20201117152358-0edc412565dc
 	github.com/crillab/gophersat v1.3.2-0.20201023142334-3fc2ac466765

go.sum

@@ -144,8 +144,8 @@ github.com/bketelsen/crypt v0.0.3-0.20200106085610-5cbc8cc4026c/go.mod h1:MKsuJm
 github.com/blang/semver v3.1.0+incompatible/go.mod h1:kRBLl5iJ+tD4TcOOxsy/0fnwebNt5EWlYSAyrTnjyyk=
 github.com/blang/semver v3.5.0+incompatible/go.mod h1:kRBLl5iJ+tD4TcOOxsy/0fnwebNt5EWlYSAyrTnjyyk=
 github.com/bmizerany/assert v0.0.0-20160611221934-b7ed37b82869/go.mod h1:Ekp36dRnpXw/yCqJaO+ZrUyxD+3VXMFFr56k5XYrpB4=
-github.com/briandowns/spinner v1.7.0 h1:aan1hBBOoscry2TXAkgtxkJiq7Se0+9pt+TUWaPrB4g=
+github.com/briandowns/spinner v1.12.1-0.20201220203425-e201aaea0a31 h1:yInAg9pE5qGec5eQ7XdfOTTaGwGxD3bKFVjmD6VKkwc=
-github.com/briandowns/spinner v1.7.0/go.mod h1://Zf9tMcxfRUA36V23M6YGEAv+kECGfvpnLTnb8n4XQ=
+github.com/briandowns/spinner v1.12.1-0.20201220203425-e201aaea0a31/go.mod h1:QOuQk7x+EaDASo80FEXwlwiA+j/PPIcX3FScO+3/ZPQ=
 github.com/bshuster-repo/logrus-logstash-hook v0.4.1/go.mod h1:zsTqEiSzDgAa/8GZR7E1qaXrhYNDKBYy5/dWPTIflbk=
 github.com/bugsnag/bugsnag-go v0.0.0-20141110184014-b1d153021fcd/go.mod h1:2oa8nejYd4cQ/b0hMIopN0lCRxU0bueqREvZLWFrtK8=
 github.com/bugsnag/osext v0.0.0-20130617224835-0dd3f918b21b/go.mod h1:obH5gd0BsqsP2LwDJ9aOkm/6J86V6lyAXCoQWGw3K50=

pkg/compiler/backend/common.go

@@ -21,6 +21,7 @@ import (
 
 	"github.com/mudler/luet/pkg/compiler"
 	"github.com/mudler/luet/pkg/config"
+	. "github.com/mudler/luet/pkg/logger"
 
 	"github.com/google/go-containerregistry/pkg/crane"
 	"github.com/pkg/errors"
@@ -49,8 +50,14 @@ func NewBackend(s string) compiler.CompilerBackend {
 }
 
 func runCommand(cmd *exec.Cmd) (string, error) {
+	buffered := !config.LuetCfg.GetGeneral().ShowBuildOutput
+	if buffered {
+		Spinner(22)
+		defer SpinnerStop()
+	}
+
 	ans := ""
-	writer := NewBackendWriter(!config.LuetCfg.GetGeneral().ShowBuildOutput)
+	writer := NewBackendWriter(buffered)
 
 	cmd.Stdout = writer
 	cmd.Stderr = writer
@@ -68,7 +75,7 @@ func runCommand(cmd *exec.Cmd) (string, error) {
 	res := cmd.ProcessState.ExitCode()
 	if res != 0 {
 		errMsg := fmt.Sprintf("Failed building image (exiting with %d)", res)
-		if !config.LuetCfg.GetGeneral().ShowBuildOutput {
+		if buffered {
 			errMsg = fmt.Sprintf("Failed building image (exiting with %d): %s",
 				res, writer.GetCombinedOutput())
 		}
@@ -76,7 +83,7 @@ func runCommand(cmd *exec.Cmd) (string, error) {
 		return "", errors.Wrap(err, errMsg)
 	}
 
-	if !config.LuetCfg.GetGeneral().ShowBuildOutput {
+	if buffered {
 		ans = writer.GetCombinedOutput()
 	}
 

pkg/compiler/backend/simpledocker.go

@@ -53,11 +53,6 @@ func (*SimpleDocker) BuildImage(opts compiler.CompilerBackendOptions) error {
 	}
 	buildarg := []string{"build", "-f", dockerfileName, "-t", name, context}
 
-	if !config.LuetCfg.GetGeneral().ShowBuildOutput {
-		Spinner(22)
-		defer SpinnerStop()
-	}
-
 	Info(":whale2: Building image " + name)
 	cmd := exec.Command("docker", buildarg...)
 	cmd.Dir = path
@@ -66,10 +61,6 @@ func (*SimpleDocker) BuildImage(opts compiler.CompilerBackendOptions) error {
 		return err
 	}
 
-	if !config.LuetCfg.GetGeneral().ShowBuildOutput {
-		SpinnerStop()
-	}
-
 	Info(":whale: Building image " + name + " done")
 
 	if os.Getenv("DOCKER_SQUASH") == "true" {
@@ -77,7 +68,7 @@ func (*SimpleDocker) BuildImage(opts compiler.CompilerBackendOptions) error {
 		var client *docker.Client
 
 		Spinner(22)
-
+		defer SpinnerStop()
 		client, err = docker.NewClientFromEnv()
 		if err != nil {
 			return errors.Wrap(err, "could not connect to the Docker daemon")

pkg/compiler/backend/simpleimg.go

@@ -21,7 +21,6 @@ import (
 	"strings"
 
 	"github.com/mudler/luet/pkg/compiler"
-	"github.com/mudler/luet/pkg/config"
 	. "github.com/mudler/luet/pkg/logger"
 
 	"github.com/pkg/errors"
@@ -48,11 +47,6 @@ func (*SimpleImg) BuildImage(opts compiler.CompilerBackendOptions) error {
 
 	Info(":tea: Building image " + name)
 
-	if !config.LuetCfg.GetGeneral().ShowBuildOutput {
-		Spinner(22)
-		defer SpinnerStop()
-	}
-
 	cmd := exec.Command("img", buildarg...)
 	cmd.Dir = path
 	_, err := runCommand(cmd)

pkg/logger/logger.go

@@ -8,6 +8,7 @@ import (
 	"runtime"
 	"strings"
 
+	"sync"
 	. "github.com/mudler/luet/pkg/config"
 
 	"github.com/briandowns/spinner"
@@ -20,7 +21,7 @@ import (
 var s *spinner.Spinner = nil
 var z *zap.Logger = nil
 var aurora Aurora = nil
-
+var spinnerLock = sync.Mutex{}
 func NewSpinner() {
 	if s == nil {
 		s = spinner.New(
@@ -84,6 +85,8 @@ func ZapLogger() error {
 }
 
 func Spinner(i int) {
+	spinnerLock.Lock()
+	defer spinnerLock.Unlock()
 	var confLevel int
 	if LuetCfg.GetGeneral().Debug {
 		confLevel = 3
@@ -120,6 +123,8 @@ func SpinnerText(suffix, prefix string) {
 }
 
 func SpinnerStop() {
+	spinnerLock.Lock()
+	defer spinnerLock.Unlock()
 	var confLevel int
 	if LuetCfg.GetGeneral().Debug {
 		confLevel = 3