Add integration tests for #1749 (#1766)

* Add integration tests for #1749

Signed-off-by: Matthias Baur <m.baur@syseleven.de>

* Reset extra args on a higher level to only affect subsequent helmfiles

With the implementation before, extra args has been reset after each
helm.exec which leads to problems with multiple charts in a helmfile
since the correct args are only set once in Template(). But Template()
calls helm.exec(template) multiple times.

Signed-off-by: Matthias Baur <m.baur@syseleven.de>

---------

Signed-off-by: Matthias Baur <m.baur@syseleven.de>

pkg/helmexec/exec.go

@@ -597,10 +597,6 @@ func (helm *execer) exec(args []string, env map[string]string, overrideEnableLiv
 		enableLiveOutput = *overrideEnableLiveOutput
 	}
 	outBytes, err := helm.runner.Execute(helm.helmBinary, cmdargs, env, enableLiveOutput)
-
-	// Reset extra args after each helm execution
-	helm.SetExtraArgs()
-
 	return outBytes, err
 }
 
@@ -618,10 +614,6 @@ func (helm *execer) execStdIn(args []string, env map[string]string, stdin io.Rea
 	cmd := fmt.Sprintf("exec: %s %s", helm.helmBinary, strings.Join(cmdargs, " "))
 	helm.logger.Debug(cmd)
 	outBytes, err := helm.runner.ExecuteStdIn(helm.helmBinary, cmdargs, env, stdin)
-
-	// Reset extra args after each helm execution
-	helm.SetExtraArgs()
-
 	return outBytes, err
 }