test: add lock around executing helm binary

Signed-off-by: Russell Centanni <russell.centanni@gmail.com>

e2e/tests/ssh/ssh.go

@@ -79,7 +79,7 @@ var _ = DevSpaceDescribe("ssh", func() {
 		framework.ExpectNoError(err)
 	})
 
-	ginkgo.It("devspace dev should NOT start an SSH service when disabled with a variable", ginkgo.FlakeAttempts(3), func(ctx context.Context) {
+	ginkgo.It("devspace dev should NOT start an SSH service when disabled with a variable", func(ctx context.Context) {
 		tempDir, err := framework.CopyToTempDir("tests/ssh/testdata/ssh-variable")
 		framework.ExpectNoError(err)
 		ginkgo.DeferCleanup(framework.CleanupTempDir, initialDir, tempDir)

pkg/devspace/helm/generic/generic.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"os"
 	"strings"
+	"sync"
 
 	"github.com/loft-sh/devspace/pkg/devspace/config/constants"
 	devspacecontext "github.com/loft-sh/devspace/pkg/devspace/context"
@@ -42,6 +43,7 @@ type client struct {
 	log        log.Logger
 	extract    extract.Extract
 	downloader downloader.Downloader
+	execLock   sync.Mutex
 
 	helmPath string
 }
@@ -80,8 +82,11 @@ func (c *client) Exec(ctx devspacecontext.Context, args []string) ([]byte, error
 		c.log.Debugf("Execute '%s %s' in directory %s", c.helmPath, strings.Join(args, " "), ctx.WorkingDir())
 	}
 
+	c.execLock.Lock()
+	defer c.execLock.Unlock()
 	result, err := command.Output(ctx.Context(), ctx.WorkingDir(), ctx.Environ(), c.helmPath, args...)
 	if err != nil {
+		c.log.Debugf("OUTPUT: %s", string(result))
 		return nil, fmt.Errorf("%s %v", string(result), err)
 	}