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89 lines
2.3 KiB
Go
89 lines
2.3 KiB
Go
// Copyright 2019 Yunion
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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 promputils
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import (
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"io/ioutil"
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"log"
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"path/filepath"
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"strings"
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prompt "github.com/c-bata/go-prompt"
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)
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func init() {
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fileListCache = map[string][]prompt.Suggest{}
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}
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func getPreviousOption(d prompt.Document) (cmd, option string, found bool) {
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args := strings.Split(d.TextBeforeCursor(), " ")
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l := len(args)
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if l >= 2 {
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option = args[l-2]
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}
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if strings.HasPrefix(option, "-") {
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return args[0], option, true
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}
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return "", "", false
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}
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func completeOptionArguments(d prompt.Document) ([]prompt.Suggest, bool) {
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cmd, option, found := getPreviousOption(d)
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if !found {
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return []prompt.Suggest{}, false
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}
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switch cmd {
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case "server-attach-disk", "describe", "create", "delete", "replace", "patch",
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"edit", "apply", "expose", "rolling-update", "rollout",
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"label", "annotate", "scale", "convert", "autoscale":
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switch option {
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case "-f", "--filename":
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return fileCompleter(d), true
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}
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}
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return []prompt.Suggest{}, false
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}
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/* file list */
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var fileListCache map[string][]prompt.Suggest
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func fileCompleter(d prompt.Document) []prompt.Suggest {
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path := d.GetWordBeforeCursor()
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if strings.HasPrefix(path, "./") {
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path = path[2:]
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}
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dir := filepath.Dir(path)
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if cached, ok := fileListCache[dir]; ok {
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return cached
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}
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files, err := ioutil.ReadDir(dir)
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if err != nil {
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log.Print("[ERROR] catch error " + err.Error())
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return []prompt.Suggest{}
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}
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suggests := make([]prompt.Suggest, 0, len(files))
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for _, f := range files {
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if !f.IsDir() &&
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!strings.HasSuffix(f.Name(), ".yml") &&
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!strings.HasSuffix(f.Name(), ".yaml") {
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continue
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}
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suggests = append(suggests, prompt.Suggest{Text: filepath.Join(dir, f.Name())})
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}
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return prompt.FilterHasPrefix(suggests, path, false)
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}
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