added option for --no-hooks for helm diff and apply (#279)

* added option for --no-hooks for helm diff and apply

Signed-off-by: Arpan Adhikari <kcarpan5@gmail.com>

* test case for --no-hooks

Signed-off-by: Arpan Adhikari <kcarpan5@gmail.com>

* fix test fails

Signed-off-by: Arpan Adhikari <kcarpan5@gmail.com>

* Resolve conflict with main

Signed-off-by: Arpan Adhikari <kcarpan5@gmail.com>

* fixup! Resolve conflict with main

Signed-off-by: Yusuke Kuoka <ykuoka@gmail.com>

* Add no-hooks case for diff test

Signed-off-by: Yusuke Kuoka <ykuoka@gmail.com>

* fixup! Add no-hooks case for diff test

Signed-off-by: Yusuke Kuoka <ykuoka@gmail.com>

Signed-off-by: Arpan Adhikari <kcarpan5@gmail.com>
Signed-off-by: Yusuke Kuoka <ykuoka@gmail.com>
Co-authored-by: Arpan Adhikari <arpan@thephotostudio.com.au>
Co-authored-by: Yusuke Kuoka <ykuoka@gmail.com>

pkg/app/app_diff_test.go

@@ -22,6 +22,7 @@ func TestDiffWithNeeds(t *testing.T) {
 		skipNeeds              bool
 		includeNeeds           bool
 		includeTransitiveNeeds bool
+		noHooks                bool
 	}
 
 	type testcase struct {
@@ -154,6 +155,7 @@ releases:
 				skipNeeds:              tc.fields.skipNeeds,
 				includeNeeds:           tc.fields.includeNeeds,
 				includeTransitiveNeeds: tc.fields.includeTransitiveNeeds,
+				noHooks:                tc.fields.noHooks,
 			})
 
 			var gotErr string
@@ -297,6 +299,20 @@ releases:
 		})
 	})
 
+	t.Run("no-hooks", func(t *testing.T) {
+		check(t, testcase{
+			fields: fields{
+				skipNeeds: true,
+				noHooks:   true,
+			},
+			selectors: []string{"app=test"},
+			diffed: []exectest.Release{
+				{Name: "external-secrets", Flags: []string{"--kube-context", "default", "--namespace", "default", "--no-hooks"}},
+				{Name: "my-release", Flags: []string{"--kube-context", "default", "--namespace", "default", "--no-hooks"}},
+			},
+		})
+	})
+
 	t.Run("bad selector", func(t *testing.T) {
 		check(t, testcase{
 			selectors: []string{"app=test_non_existent"},