fix regression that `--namespace` breaks delete/destroy and possibly sync/apply as well

The problem was that `--namespace NS` had been not taken into account while deleting releases, that resulted in releases that should be deleted are not deleted.

pkg/app/app.go

@@ -451,7 +451,7 @@ func printBatches(batches [][]state.Release) string {
 }
 
 func withDAG(templated *state.HelmState, helm helmexec.Interface, logger *zap.SugaredLogger, reverse bool, converge func(*state.HelmState, helmexec.Interface) (bool, []error)) (bool, []error) {
-	batches, err := state.PlanReleases(templated.Releases, templated.Selectors, reverse)
+	batches, err := templated.PlanReleases(reverse)
 	if err != nil {
 		return false, []error{err}
 	}
@@ -679,7 +679,7 @@ func (a *App) apply(r *Run, c ApplyConfigProvider) (bool, []error) {
 		Set:     c.Set(),
 	}
 
-	allReleases := st.Releases
+	allReleases := st.GetReleasesWithOverrides()
 
 	var changedReleases []state.ReleaseSpec
 	var deletingReleases []state.ReleaseSpec
@@ -688,7 +688,7 @@ func (a *App) apply(r *Run, c ApplyConfigProvider) (bool, []error) {
 	// TODO Better way to detect diff on only filtered releases
 	{
 		if len(st.Selectors) > 0 {
-			releases, err := st.GetFilteredReleases()
+			releases, err := st.GetSelectedReleasesWithOverrides()
 			if err != nil {
 				return false, []error{err}
 			}
@@ -835,19 +835,12 @@ func (a *App) delete(r *Run, purge bool, c DestroyConfigProvider) (bool, []error
 
 	affectedReleases := state.AffectedReleases{}
 
-	var toSync []state.ReleaseSpec
-
-	if len(st.Selectors) > 0 {
-		var err error
-		toSync, err = st.GetFilteredReleases()
-		if err != nil {
-			return false, []error{err}
-		}
-		if len(toSync) == 0 {
-			return false, nil
-		}
-	} else {
-		toSync = st.Releases
+	toSync, err := st.GetSelectedReleasesWithOverrides()
+	if err != nil {
+		return false, []error{err}
+	}
+	if len(toSync) == 0 {
+		return false, nil
 	}
 
 	toDelete, err := st.DetectReleasesToBeDeleted(helm, toSync)
@@ -925,7 +918,7 @@ func (a *App) sync(r *Run, c SyncConfigProvider) (bool, []error) {
 
 	if len(st.Selectors) > 0 {
 		var err error
-		toSync, err = st.GetFilteredReleases()
+		toSync, err = st.GetSelectedReleasesWithOverrides()
 		if err != nil {
 			return false, []error{err}
 		}
@@ -1047,7 +1040,7 @@ func (a *App) template(r *Run, c TemplateConfigProvider) (bool, []error) {
 
 	if len(st.Selectors) > 0 {
 		var err error
-		templatedReleases, err = st.GetFilteredReleases()
+		templatedReleases, err = st.GetSelectedReleasesWithOverrides()
 		if err != nil {
 			return false, []error{err}
 		}

pkg/state/state.go

@@ -1226,7 +1226,31 @@ func (st *HelmState) Clean() []error {
 	return nil
 }
 
-func MarkFilteredReleases(releases []ReleaseSpec, selectors []string) ([]Release, error) {
+func (st *HelmState) GetReleasesWithOverrides() []ReleaseSpec {
+	var rs []ReleaseSpec
+	for _, r := range st.Releases {
+		var spec ReleaseSpec
+		spec = r
+		st.ApplyOverrides(&spec)
+		rs = append(rs, spec)
+	}
+	return rs
+}
+
+func (st *HelmState) SelectReleasesWithOverrides() ([]Release, error) {
+	rs, err := markFilteredReleases(st.GetReleasesWithOverrides(), st.Selectors)
+	if err != nil {
+		return nil, err
+	}
+	for _, r := range rs {
+		spec := r.ReleaseSpec
+		st.ApplyOverrides(&spec)
+		r.ReleaseSpec = spec
+	}
+	return rs, nil
+}
+
+func markFilteredReleases(releases []ReleaseSpec, selectors []string) ([]Release, error) {
 	var filteredReleases []Release
 	filters := []ReleaseFilter{}
 	for _, label := range selectors {
@@ -1266,8 +1290,8 @@ func MarkFilteredReleases(releases []ReleaseSpec, selectors []string) ([]Release
 	return filteredReleases, nil
 }
 
-func (st *HelmState) GetFilteredReleases() ([]ReleaseSpec, error) {
-	filteredReleases, err := MarkFilteredReleases(st.Releases, st.Selectors)
+func (st *HelmState) GetSelectedReleasesWithOverrides() ([]ReleaseSpec, error) {
+	filteredReleases, err := st.SelectReleasesWithOverrides()
 	if err != nil {
 		return nil, err
 	}
@@ -1282,7 +1306,7 @@ func (st *HelmState) GetFilteredReleases() ([]ReleaseSpec, error) {
 
 // FilterReleases allows for the execution of helm commands against a subset of the releases in the helmfile.
 func (st *HelmState) FilterReleases() error {
-	releases, err := st.GetFilteredReleases()
+	releases, err := st.GetSelectedReleasesWithOverrides()
 	if err != nil {
 		return err
 	}

pkg/state/state_run.go

@@ -108,8 +108,8 @@ type PlanOpts struct {
 	Reverse bool
 }
 
-func PlanReleases(releases []ReleaseSpec, selectors []string, reverse bool) ([][]Release, error) {
-	marked, err := MarkFilteredReleases(releases, selectors)
+func (st *HelmState) PlanReleases(reverse bool) ([][]Release, error) {
+	marked, err := st.SelectReleasesWithOverrides()
 	if err != nil {
 		return nil, err
 	}