mirror of
https://github.com/cwinfo/matterbridge.git
synced 2024-11-30 01:31:36 +00:00
100 lines
3.5 KiB
Go
100 lines
3.5 KiB
Go
// Copyright (c) 2016 Uber Technologies, Inc.
|
|
//
|
|
// 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 zap
|
|
|
|
import (
|
|
"fmt"
|
|
"io"
|
|
"io/ioutil"
|
|
|
|
"go.uber.org/zap/zapcore"
|
|
|
|
"go.uber.org/multierr"
|
|
)
|
|
|
|
// Open is a high-level wrapper that takes a variadic number of URLs, opens or
|
|
// creates each of the specified resources, and combines them into a locked
|
|
// WriteSyncer. It also returns any error encountered and a function to close
|
|
// any opened files.
|
|
//
|
|
// Passing no URLs returns a no-op WriteSyncer. Zap handles URLs without a
|
|
// scheme and URLs with the "file" scheme. Third-party code may register
|
|
// factories for other schemes using RegisterSink.
|
|
//
|
|
// URLs with the "file" scheme must use absolute paths on the local
|
|
// filesystem. No user, password, port, fragments, or query parameters are
|
|
// allowed, and the hostname must be empty or "localhost".
|
|
//
|
|
// Since it's common to write logs to the local filesystem, URLs without a
|
|
// scheme (e.g., "/var/log/foo.log") are treated as local file paths. Without
|
|
// a scheme, the special paths "stdout" and "stderr" are interpreted as
|
|
// os.Stdout and os.Stderr. When specified without a scheme, relative file
|
|
// paths also work.
|
|
func Open(paths ...string) (zapcore.WriteSyncer, func(), error) {
|
|
writers, close, err := open(paths)
|
|
if err != nil {
|
|
return nil, nil, err
|
|
}
|
|
|
|
writer := CombineWriteSyncers(writers...)
|
|
return writer, close, nil
|
|
}
|
|
|
|
func open(paths []string) ([]zapcore.WriteSyncer, func(), error) {
|
|
writers := make([]zapcore.WriteSyncer, 0, len(paths))
|
|
closers := make([]io.Closer, 0, len(paths))
|
|
close := func() {
|
|
for _, c := range closers {
|
|
c.Close()
|
|
}
|
|
}
|
|
|
|
var openErr error
|
|
for _, path := range paths {
|
|
sink, err := newSink(path)
|
|
if err != nil {
|
|
openErr = multierr.Append(openErr, fmt.Errorf("couldn't open sink %q: %v", path, err))
|
|
continue
|
|
}
|
|
writers = append(writers, sink)
|
|
closers = append(closers, sink)
|
|
}
|
|
if openErr != nil {
|
|
close()
|
|
return writers, nil, openErr
|
|
}
|
|
|
|
return writers, close, nil
|
|
}
|
|
|
|
// CombineWriteSyncers is a utility that combines multiple WriteSyncers into a
|
|
// single, locked WriteSyncer. If no inputs are supplied, it returns a no-op
|
|
// WriteSyncer.
|
|
//
|
|
// It's provided purely as a convenience; the result is no different from
|
|
// using zapcore.NewMultiWriteSyncer and zapcore.Lock individually.
|
|
func CombineWriteSyncers(writers ...zapcore.WriteSyncer) zapcore.WriteSyncer {
|
|
if len(writers) == 0 {
|
|
return zapcore.AddSync(ioutil.Discard)
|
|
}
|
|
return zapcore.Lock(zapcore.NewMultiWriteSyncer(writers...))
|
|
}
|