50 lines
1.6 KiB
Go
50 lines
1.6 KiB
Go
// Copyright 2019 Drone IO, Inc.
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// Copyright 2016 The containerd 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 logger
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import (
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"context"
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"net/http"
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"github.com/sirupsen/logrus"
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)
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type loggerKey struct{}
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// L is an alias for the the standard logger.
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var L = logrus.NewEntry(logrus.StandardLogger())
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// WithContext returns a new context with the provided logger. Use in
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// combination with logger.WithField(s) for great effect.
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func WithContext(ctx context.Context, logger *logrus.Entry) context.Context {
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return context.WithValue(ctx, loggerKey{}, logger)
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}
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// FromContext retrieves the current logger from the context. If no
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// logger is available, the default logger is returned.
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func FromContext(ctx context.Context) *logrus.Entry {
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logger := ctx.Value(loggerKey{})
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if logger == nil {
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return L
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}
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return logger.(*logrus.Entry)
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}
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// FromRequest retrieves the current logger from the request. If no
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// logger is available, the default logger is returned.
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func FromRequest(r *http.Request) *logrus.Entry {
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return FromContext(r.Context())
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}
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