f534d8817f
Configurations are now cached from each provider separately so that we can merge them together when one provider has changed config. The Web module also returns full config info through the HTML call, but REST API is working on a separate web configuration that is sent in just like any other.
82 lines
1.7 KiB
Go
82 lines
1.7 KiB
Go
package main
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import (
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"os"
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"path/filepath"
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"strings"
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"github.com/BurntSushi/toml"
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log "github.com/Sirupsen/logrus"
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"gopkg.in/fsnotify.v1"
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)
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type FileProvider struct {
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Watch bool
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Filename string
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}
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func NewFileProvider() *FileProvider {
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fileProvider := new(FileProvider)
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// default values
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fileProvider.Watch = true
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return fileProvider
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}
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func (provider *FileProvider) Provide(configurationChan chan<- configMessage) {
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watcher, err := fsnotify.NewWatcher()
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if err != nil {
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log.Error("Error creating file watcher", err)
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return
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}
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defer watcher.Close()
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file, err := os.Open(provider.Filename)
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if err != nil {
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log.Error("Error opening file", err)
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return
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}
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defer file.Close()
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done := make(chan bool)
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// Process events
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go func() {
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for {
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select {
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case event := <-watcher.Events:
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if strings.Contains(event.Name, file.Name()) {
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log.Debug("File event:", event)
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configuration := provider.LoadFileConfig(file.Name())
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if configuration != nil {
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configurationChan <- configMessage{"file", configuration}
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}
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}
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case error := <-watcher.Errors:
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log.Error("Watcher event error", error)
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}
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}
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}()
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if provider.Watch {
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err = watcher.Add(filepath.Dir(file.Name()))
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}
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if err != nil {
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log.Error("Error adding file watcher", err)
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return
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}
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configuration := provider.LoadFileConfig(file.Name())
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configurationChan <- configMessage{"file", configuration}
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<-done
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}
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func (provider *FileProvider) LoadFileConfig(filename string) *Configuration {
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configuration := new(Configuration)
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if _, err := toml.DecodeFile(filename, configuration); err != nil {
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log.Error("Error reading file:", err)
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return nil
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}
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return configuration
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}
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