mirror of
https://github.com/TECHNOFAB11/powerproto.git
synced 2025-12-11 23:50:04 +01:00
103 lines
2.9 KiB
Go
103 lines
2.9 KiB
Go
// Copyright 2021 storyicon@foxmail.com
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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 configmanager
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import (
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"context"
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"os"
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"path/filepath"
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"strings"
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"sync"
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"github.com/pkg/errors"
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"github.com/storyicon/powerproto/pkg/configs"
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"github.com/storyicon/powerproto/pkg/util/logger"
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)
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// ConfigManager is used to manage config
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type ConfigManager interface {
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// GetCompiler is used to get config of specified proto file path
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GetConfig(ctx context.Context, protoFilePath string) (configs.ConfigItem, error)
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}
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// NewConfigManager is used to create ConfigManager
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func NewConfigManager(log logger.Logger) (ConfigManager, error) {
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return NewBasicConfigManager(log)
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}
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// BasicConfigManager is the basic implement of ConfigManager
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type BasicConfigManager struct {
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logger.Logger
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tree map[string][]configs.ConfigItem
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treeLock sync.RWMutex
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}
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// New is used to create a basic ConfigManager
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func NewBasicConfigManager(log logger.Logger) (*BasicConfigManager, error) {
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return &BasicConfigManager{
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Logger: log.NewLogger("configmanager"),
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tree: map[string][]configs.ConfigItem{},
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}, nil
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}
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// GetCompiler is used to get config of specified proto file path
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func (b *BasicConfigManager) GetConfig(ctx context.Context, protoFilePath string) (configs.ConfigItem, error) {
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possiblePath := configs.ListConfigPaths(filepath.Dir(protoFilePath))
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for _, configFilePath := range possiblePath {
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items, err := b.loadConfig(configFilePath)
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if err != nil {
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return nil, err
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}
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dir := filepath.Dir(configFilePath)
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for _, config := range items {
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for _, scope := range config.Config().Scopes {
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scopePath := filepath.Join(dir, scope)
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if strings.Contains(protoFilePath, scopePath) {
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return config, nil
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}
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}
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}
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}
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return nil, errors.Errorf("unable to find config: %s", protoFilePath)
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}
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func (b *BasicConfigManager) loadConfig(configFilePath string) ([]configs.ConfigItem, error) {
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b.treeLock.Lock()
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defer b.treeLock.Unlock()
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configItems, ok := b.tree[configFilePath]
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if !ok {
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fileInfo, err := os.Stat(configFilePath)
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if err != nil {
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if os.IsNotExist(err) {
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b.tree[configFilePath] = nil
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return nil, nil
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}
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return nil, err
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}
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if fileInfo.IsDir() {
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b.tree[configFilePath] = nil
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return nil, nil
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}
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data, err := configs.LoadConfigItems(configFilePath)
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if err != nil {
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return nil, errors.WithMessagef(err, "failed to decode: %s", configFilePath)
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}
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b.tree[configFilePath] = data
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return data, nil
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}
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return configItems, nil
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}
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