allow default bump type

Signed-off-by: Jan Braje <12571346+janluak@users.noreply.github.com>

pkg/action/bump.go

@@ -61,6 +61,9 @@ func (b *Bump) Run(bumpType string, chartpath string) (string, error) {
 	if err != nil {
 		return "", err
 	}
+	if bumpType == "" {
+		bumpType = "patch"
+	}
 	b.bump = bumpType
 
 	currentVersion := strings.TrimSpace(string(cv))

pkg/cmd/bump_test.go

@@ -54,6 +54,10 @@ func TestBump(t *testing.T) {
 		wantError: true,
 	}, {
 		name:   "default",
+		cmd:    "bump " + tempChartDir,
+		golden: "output/bump-default.txt",
+	}, {
+		name:   "patch",
 		cmd:    "bump patch " + tempChartDir,
 		golden: "output/bump-patch.txt",
 	}, {

pkg/cmd/testdata/output/bump-default.txt

@@ -0,0 +1 @@
+changed chart version to "0.1.1"

pkg/cmd/testdata/output/bump-patch.txt

@@ -1 +1 @@
-changed chart version to "0.1.1"
+changed chart version to "0.1.2"