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e574419391
Copied the flag syntax from kubectl --output so it can be extended later without breaking changes. It's not integrated terribly well, but the next step would be to abstract the printing so we can switch out printers more cleanly and also pick which information is rendered for each printing format, and I do not know go or this codebase well enough to do that yet. Signed-off-by: Mara Furland <mara@fur.land>
70 lines
1.7 KiB
Go
70 lines
1.7 KiB
Go
/*
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Copyright 2022 The Flux authors
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package printers
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import (
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"fmt"
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"io"
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"sigs.k8s.io/yaml"
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)
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// YamlPrinter is a printer that prints Flux cmd outputs as yaml.
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func YamlPrinter(header []string) PrinterFunc {
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return func(w io.Writer, args ...interface{}) error {
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// args is 2d array of string
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// headers is 1d array of string
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var rows [][]string
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for _, arg := range args {
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switch arg := arg.(type) {
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case []interface{}:
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for _, v := range arg {
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s, ok := v.([][]string)
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if !ok {
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return fmt.Errorf("unsupported type %T", v)
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}
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rows = append(rows, s...)
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}
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default:
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return fmt.Errorf("unsupported type %T", arg)
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}
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}
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var entries []map[string]interface{}
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for _, row := range rows {
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entry := make(map[string]interface{})
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for j, h := range header {
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if row[j] == "True" || row[j] == "False" {
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entry[h] = row[j] == "True"
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} else {
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entry[h] = row[j]
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}
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}
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entries = append(entries, entry)
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}
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if len(entries) > 0 {
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y, err := yaml.Marshal(entries)
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if err != nil {
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return fmt.Errorf("error marshalling yaml %w", err)
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}
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fmt.Fprint(w, string(y))
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}
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return nil
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}
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}
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