Pass --keep-history when so instructed [#24]

internal/run/uninstall.go

@@ -6,9 +6,10 @@ import (
 
 // Uninstall is an execution step that calls `helm uninstall` when executed.
 type Uninstall struct {
-	Release string
-	DryRun  bool
-	cmd     cmd
+	Release     string
+	DryRun      bool
+	KeepHistory bool
+	cmd         cmd
 }
 
 // Execute executes the `helm uninstall` command.
@@ -36,6 +37,9 @@ func (u *Uninstall) Prepare(cfg Config) error {
 	if u.DryRun {
 		args = append(args, "--dry-run")
 	}
+	if u.KeepHistory {
+		args = append(args, "--keep-history")
+	}
 
 	args = append(args, u.Release)
 

internal/run/uninstall_test.go

@@ -81,6 +81,21 @@ func (suite *UninstallTestSuite) TestPrepareDryRunFlag() {
 	suite.Equal(expected, suite.actualArgs)
 }
 
+func (suite *UninstallTestSuite) TestPrepareKeepHistoryFlag() {
+	u := Uninstall{
+		Release:     "perturbator_sentient",
+		KeepHistory: true,
+	}
+	cfg := Config{}
+
+	suite.mockCmd.EXPECT().Stdout(gomock.Any()).AnyTimes()
+	suite.mockCmd.EXPECT().Stderr(gomock.Any()).AnyTimes()
+
+	suite.NoError(u.Prepare(cfg))
+	expected := []string{"uninstall", "--keep-history", "perturbator_sentient"}
+	suite.Equal(expected, suite.actualArgs)
+}
+
 func (suite *UninstallTestSuite) TestPrepareNamespaceFlag() {
 	u := Uninstall{
 		Release: "carly_simon_run_away_with_me",