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watch.go
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watch.go
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/*
* MIT License
*
* Copyright (c) 2022 Nicolas JUHEL
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
*
*/
package viper
import (
"time"
libnot "github.com/fsnotify/fsnotify"
loglvl "github.com/nabbar/golib/logger/level"
)
func (v *viper) initWatchRemote(logLevelRemoteKO, logLevelRemoteOK loglvl.Level) {
// open a goroutine to watch remote changes forever
go func() {
// unstopped for loop
for {
// delay after each request
time.Sleep(time.Second * 5)
if v.remote.provider == RemoteETCD {
if v.logEntry(logLevelRemoteKO, "Remote config watching").ErrorAdd(true, v.v.WatchRemoteConfig()).Check(logLevelRemoteOK) {
// skip error and try next time
continue
}
} else {
// reading remote config
if v.logEntry(logLevelRemoteKO, "Remote config loading").ErrorAdd(true, v.v.ReadRemoteConfig()).Check(logLevelRemoteOK) {
// skip error and try next time
continue
}
}
// add config model
if v.logEntry(logLevelRemoteKO, "Remote config parsing").ErrorAdd(true, v.v.Unmarshal(v.remote.model)).Check(logLevelRemoteOK) {
// skip error and try next time
continue
}
}
}()
}
func (v *viper) WatchFS(logLevelFSInfo loglvl.Level) {
v.v.WatchConfig()
v.v.OnConfigChange(func(e libnot.Event) {
if v.remote.fct != nil {
v.logEntry(logLevelFSInfo, "Reloading local config file '%s'...", e.Name).Log()
v.remote.fct()
v.logEntry(logLevelFSInfo, "local config file '%s' has been reloaded.", e.Name).Log()
}
})
}