141 lines
3.2 KiB
Go
141 lines
3.2 KiB
Go
// Copyright © 2022 Roberto Hidalgo <joao@un.rob.mx>
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// SPDX-License-Identifier: Apache-2.0
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package config
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import (
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"fmt"
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"io/ioutil"
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"os"
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"sort"
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"strings"
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"git.rob.mx/nidito/chinampa/pkg/command"
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"github.com/sirupsen/logrus"
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"github.com/spf13/cobra"
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"gopkg.in/yaml.v3"
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)
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func (cfg *Config) Lookup(query []string) (*Entry, error) {
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if len(query) == 0 || len(query) == 1 && query[0] == "." {
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return cfg.Tree, nil
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}
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entry := cfg.Tree
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for _, part := range query {
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entry = entry.ChildNamed(part)
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if entry == nil {
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return nil, fmt.Errorf("value not found at %s of %s", part, query)
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}
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}
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return entry, nil
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}
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func findRepoConfig(from string) (*opDetails, error) {
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parts := strings.Split(from, "/")
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for i := len(parts); i > 0; i-- {
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query := strings.Join(parts[0:i], "/")
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if bytes, err := os.ReadFile(query + "/.joao.yaml"); err == nil {
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rmc := &opDetails{Repo: query}
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err := yaml.Unmarshal(bytes, rmc)
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if err != nil {
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return nil, err
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}
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return rmc, nil
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}
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}
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return nil, nil
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}
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func scalarsIn(data map[string]yaml.Node, parents []string) ([]string, error) {
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keys := []string{}
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for key, leaf := range data {
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if key == "_config" && len(parents) == 0 {
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continue
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}
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switch leaf.Kind {
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case yaml.ScalarNode:
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newKey := strings.Join(append(parents, key), ".")
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keys = append(keys, newKey)
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case yaml.MappingNode, yaml.DocumentNode, yaml.SequenceNode:
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sub := map[string]yaml.Node{}
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if leaf.Kind == yaml.SequenceNode {
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list := []yaml.Node{}
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if err := leaf.Decode(&list); err != nil {
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return keys, err
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}
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for idx, child := range list {
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sub[fmt.Sprintf("%d", idx)] = child
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}
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} else {
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if err := leaf.Decode(&sub); err != nil {
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return keys, err
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}
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}
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ret, err := scalarsIn(sub, append(parents, key))
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if err != nil {
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return keys, err
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}
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keys = append(keys, ret...)
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default:
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logrus.Fatalf("found unknown %v at %s", leaf.Kind, key)
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}
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}
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return keys, nil
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}
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func KeysFromYAML(data []byte) ([]string, error) {
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cfg := map[string]yaml.Node{}
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err := yaml.Unmarshal(data, &cfg)
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if err != nil {
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return nil, err
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}
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return scalarsIn(cfg, []string{})
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}
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func AutocompleteKeys(cmd *command.Command, currentValue, config string) ([]string, cobra.ShellCompDirective, error) {
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flag := cobra.ShellCompDirectiveError
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file := cmd.Arguments[0].ToString()
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buf, err := ioutil.ReadFile(file)
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if err != nil {
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return nil, flag, fmt.Errorf("could not read file %s", file)
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}
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keys, err := KeysFromYAML(buf)
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if err != nil {
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return nil, flag, err
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}
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sort.Strings(keys)
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return keys, cobra.ShellCompDirectiveDefault, nil
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}
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func AutocompleteKeysAndParents(cmd *command.Command, currentValue string, config string) (values []string, flag cobra.ShellCompDirective, err error) {
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opts := map[string]bool{".": true}
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options, flag, err := AutocompleteKeys(cmd, currentValue, "")
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for _, opt := range options {
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parts := strings.Split(opt, ".")
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sub := []string{parts[0]}
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for idx, p := range parts {
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key := strings.Join(sub, ".")
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opts[key] = true
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if idx > 0 && idx < len(parts)-1 {
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sub = append(sub, p)
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}
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}
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}
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for k := range opts {
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options = append(options, k)
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}
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sort.Strings(options)
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return options, flag, err
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}
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