Add type filter to list work package

cmd/list/list.go

@@ -51,6 +51,16 @@ keywords 'open', 'closed', a single ID or a comma separated array of IDs, i.e.
 prefixed with an '!' the list is instead filtered to not have the specified
 status.`)
 
+	workPackagesCmd.Flags().StringVarP(
+		&typeFilter,
+		"type",
+		"t",
+		"",
+		`Show only work packages having the specified types. The value can be a single
+ID or a comma separated array of IDs, i.e. '7,13'. Multiple values are
+concatenated with a logical 'OR'. If the IDs are prefixed with an '!' the list
+is instead filtered to not have the specified status.`)
+
 	workPackagesCmd.Flags().BoolVarP(
 		&showTotal,
 		"total",

cmd/list/work_packages.go

@@ -19,6 +19,7 @@ var projectId uint64
 var version string
 var showTotal bool
 var statusFilter string
+var typeFilter string
 
 var workPackagesCmd = &cobra.Command{
 	Use:     "workpackages",
@@ -60,6 +61,10 @@ func filterOptions() *map[work_packages.FilterOption]string {
 		options[work_packages.Status] = validateStatusFilterValue(statusFilter)
 	}
 
+	if len(typeFilter) > 0 {
+		options[work_packages.Type] = validateStatusFilterValue(typeFilter)
+	}
+
 	if len(version) > 0 {
 		options[work_packages.Version] = validatedVersionId(version)
 	}

components/resources/work_packages/filters.go

@@ -22,6 +22,26 @@ func VersionFilter(version string) requests.Filter {
 	}
 }
 
+func TypeFilter(workPackageType string) requests.Filter {
+	var operator string
+	var values []string
+
+	switch {
+	case strings.Index(workPackageType, "!") == 0:
+		operator = "!"
+		values = strings.Split(workPackageType[1:], ",")
+	default:
+		operator = "="
+		values = strings.Split(workPackageType, ",")
+	}
+
+	return requests.Filter{
+		Operator: operator,
+		Name:     "type",
+		Values:   values,
+	}
+}
+
 func StatusFilter(status string) requests.Filter {
 	var operator string
 	var values []string

components/resources/work_packages/read.go

@@ -17,6 +17,7 @@ const (
 	Version
 	Project
 	Status
+	Type
 )
 
 func Lookup(id uint64) (*models.WorkPackage, error) {
@@ -40,6 +41,8 @@ func All(filterOptions *map[FilterOption]string) (*models.WorkPackageCollection,
 			filters = append(filters, VersionFilter(value))
 		case Status:
 			filters = append(filters, StatusFilter(value))
+		case Type:
+			filters = append(filters, TypeFilter(value))
 		case Project:
 			n, _ := strconv.ParseUint(value, 10, 64)
 			projectId = &n