fix: circleci orb list --uncertified --details no longer crashes (#851)

cmd/orb.go

@@ -7,6 +7,7 @@ import (
 	"fmt"
 	"io"
 	"io/ioutil"
+	"log"
 	"net/http"
 	"os"
 	"path"
@@ -390,6 +391,22 @@ func orbHelpLong(config *settings.Config) string {
 See a full explanation and documentation on orbs here: %s`, config.Data.Links.OrbDocs)
 }
 
+// Transform a boolean parameter into a string. Because the value can be a boolean but can also be
+// a string, we need to first parse it as a boolean and then if it is not a boolean, parse it as
+// a string
+//
+// Documentation reference: https://circleci.com/docs/reusing-config/#boolean
+func booleanParameterDefaultToString(parameter api.OrbElementParameter) string {
+	if v, ok := parameter.Default.(bool); ok {
+		return fmt.Sprintf("%t", v)
+	}
+	v, ok := parameter.Default.(string)
+	if !ok {
+		log.Panicf("Unable to parse boolean parameter with value %+v", v)
+	}
+	return v
+}
+
 func parameterDefaultToString(parameter api.OrbElementParameter) string {
 	defaultValue := " (default: '"
 
@@ -401,12 +418,18 @@ func parameterDefaultToString(parameter api.OrbElementParameter) string {
 	}
 
 	switch parameter.Type {
-	case "enum":
-		defaultValue += parameter.Default.(string)
-	case "string":
-		defaultValue += parameter.Default.(string)
+	case "enum", "string":
+		if v, ok := parameter.Default.(string); ok {
+			defaultValue += v
+			break
+		}
+		if v, ok := parameter.Default.(fmt.Stringer); ok {
+			defaultValue += v.String()
+			break
+		}
+		log.Panicf("Unable to parse parameter default with value %+v because it's neither a string nor a stringer", parameter.Default)
 	case "boolean":
-		defaultValue += fmt.Sprintf("%t", parameter.Default.(bool))
+		defaultValue += booleanParameterDefaultToString(parameter)
 	default:
 		defaultValue += ""
 	}

cmd/orb_unit_test.go

@@ -0,0 +1,66 @@
+package cmd
+
+import (
+	"time"
+
+	"github.com/CircleCI-Public/circleci-cli/api"
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/ginkgo/extensions/table"
+	. "github.com/onsi/gomega"
+)
+
+var _ = Describe("Orb unit tests", func() {
+	Describe("Orb formatters", func() {
+		DescribeTable(
+			"parameterDefaultToString",
+			func(input api.OrbElementParameter, expected string) {
+				Expect(parameterDefaultToString(input)).To(Equal(expected))
+			},
+			Entry(
+				"Normal behaviour for string",
+				api.OrbElementParameter{
+					Type:        "string",
+					Description: "",
+					Default:     "Normal behavior",
+				},
+				" (default: 'Normal behavior')",
+			),
+			Entry(
+				"Normal behaviour for enum",
+				api.OrbElementParameter{
+					Type:        "enum",
+					Description: "",
+					Default:     "Normal behavior",
+				},
+				" (default: 'Normal behavior')",
+			),
+			Entry(
+				"Normal behaviour for boolean",
+				api.OrbElementParameter{
+					Type:        "boolean",
+					Description: "",
+					Default:     true,
+				},
+				" (default: 'true')",
+			),
+			Entry(
+				"String value for boolean",
+				api.OrbElementParameter{
+					Type:        "boolean",
+					Description: "",
+					Default:     "yes",
+				},
+				" (default: 'yes')",
+			),
+			Entry(
+				"Time value for string",
+				api.OrbElementParameter{
+					Type:        "string",
+					Description: "",
+					Default:     time.Date(2023, 02, 20, 11, 9, 0, 0, time.Now().UTC().Location()),
+				},
+				" (default: '2023-02-20 11:09:00 +0000 UTC')",
+			),
+		)
+	})
+})