105 lines
2.5 KiB
Go
105 lines
2.5 KiB
Go
// Copyright © 2022 Roberto Hidalgo <joao@un.rob.mx>
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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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// 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 config
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import (
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"fmt"
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"os"
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"strings"
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"github.com/sirupsen/logrus"
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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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