mirror of https://github.com/goharbor/harbor.git
120 lines
2.5 KiB
Go
120 lines
2.5 KiB
Go
// Copyright Project Harbor Authors
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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 json
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import (
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"encoding/json"
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"io/ioutil"
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"os"
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"path/filepath"
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"sync"
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"github.com/goharbor/harbor/src/adminserver/systemcfg/store"
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"github.com/goharbor/harbor/src/common/utils/log"
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)
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const (
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// the default path of configuration file
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defaultPath = "/etc/harbor/config.json"
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)
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type cfgStore struct {
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path string // the path of cfg file
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sync.RWMutex
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}
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// NewCfgStore returns an instance of cfgStore that stores the configurations
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// in a json file. The file will be created if it does not exist.
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func NewCfgStore(path ...string) (store.Driver, error) {
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p := defaultPath
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if len(path) > 0 && len(path[0]) > 0 {
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p = path[0]
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}
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log.Debugf("path of configuration file: %s", p)
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if _, err := os.Stat(p); os.IsNotExist(err) {
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log.Infof("the configuration file %s does not exist, creating it...", p)
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if err = os.MkdirAll(filepath.Dir(p), 0600); err != nil {
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return nil, err
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}
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if err = ioutil.WriteFile(p, []byte{}, 0600); err != nil {
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return nil, err
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}
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}
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return &cfgStore{
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path: p,
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}, nil
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}
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// Name ...
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func (c *cfgStore) Name() string {
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return "JSON"
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}
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// Read ...
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func (c *cfgStore) Read() (map[string]interface{}, error) {
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c.RLock()
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defer c.RUnlock()
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return read(c.path)
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}
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func read(path string) (map[string]interface{}, error) {
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b, err := ioutil.ReadFile(path)
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if err != nil {
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return nil, err
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}
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// empty file
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if len(b) == 0 {
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return nil, nil
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}
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config := map[string]interface{}{}
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if err = json.Unmarshal(b, &config); err != nil {
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return nil, err
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}
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return config, nil
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}
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// Write ...
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func (c *cfgStore) Write(config map[string]interface{}) error {
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c.Lock()
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defer c.Unlock()
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cfg, err := read(c.path)
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if err != nil {
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return err
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}
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if cfg == nil {
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cfg = config
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} else {
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for k, v := range config {
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cfg[k] = v
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}
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}
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b, err := json.MarshalIndent(cfg, "", " ")
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if err != nil {
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return err
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}
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return ioutil.WriteFile(c.path, b, 0600)
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}
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