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/state/state.go

@@ -1439,6 +1439,11 @@ func (st *HelmState) runHelmDepBuilds(helm helmexec.Interface, concurrency int,
 	//    So we shouldn't use goroutines like we do for other helm operations here.
 	//
 	//    See https://github.com/roboll/helmfile/issues/1521
+
+	// Reset helm extra args to not pollute BuildDeps() on subsequent helmfiles
+	// https://github.com/helmfile/helmfile/issues/1749
+	helm.SetExtraArgs()
+
 	for _, r := range builds {
 		buildDepsFlags := getBuildDepsFlags(r)
 		if err := helm.BuildDeps(r.releaseName, r.chartPath, buildDepsFlags...); err != nil {