mirror of https://github.com/knative/client.git
92 lines
2.6 KiB
Go
92 lines
2.6 KiB
Go
// Copyright © 2019 The Knative Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package trigger
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import (
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"fmt"
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"strings"
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"github.com/spf13/cobra"
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)
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type filterArray []string
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func (filters *filterArray) String() string {
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str := ""
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for _, filter := range *filters {
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str = str + filter + " "
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}
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return str
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}
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func (filters *filterArray) Set(value string) error {
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*filters = append(*filters, value)
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return nil
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}
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func (filters *filterArray) Type() string {
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return "[]string"
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}
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// TriggerUpdateFlags are flags for create and update a trigger
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type TriggerUpdateFlags struct {
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Broker string
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Filters filterArray
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}
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// GetFilter to return a map type of filters
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func (f *TriggerUpdateFlags) GetFilters() (map[string]string, error) {
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filters := map[string]string{}
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for _, item := range f.Filters {
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parts := strings.Split(item, "=")
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if len(parts) < 2 || parts[0] == "" || parts[1] == "" {
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return nil, fmt.Errorf("invalid filter %s", f.Filters)
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} else {
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if _, ok := filters[parts[0]]; ok {
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return nil, fmt.Errorf("duplicate key '%s' in filters %s", parts[0], f.Filters)
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}
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filters[parts[0]] = parts[1]
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}
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}
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return filters, nil
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}
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// GetFilter to return a map type of filters
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func (f *TriggerUpdateFlags) GetUpdateFilters() (map[string]string, []string, error) {
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filters := map[string]string{}
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var removes []string
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for _, item := range f.Filters {
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if strings.HasSuffix(item, "-") {
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removes = append(removes, item[:len(item)-1])
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} else {
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parts := strings.Split(item, "=")
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if len(parts) < 2 || parts[0] == "" || parts[1] == "" {
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return nil, nil, fmt.Errorf("invalid filter %s", f.Filters)
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}
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if _, ok := filters[parts[0]]; ok {
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return nil, nil, fmt.Errorf("duplicate key '%s' in filters %s", parts[0], f.Filters)
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}
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filters[parts[0]] = parts[1]
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}
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}
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return filters, removes, nil
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}
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//Add is to set parameters
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func (f *TriggerUpdateFlags) Add(cmd *cobra.Command) {
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cmd.Flags().StringVar(&f.Broker, "broker", "default", "Name of the Broker which the trigger associates with.")
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cmd.Flags().Var(&f.Filters, "filter", "Key-value pair for exact CloudEvent attribute matching against incoming events, e.g type=dev.knative.foo")
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}
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