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ad0f7a5305
Upgrade to Go 1.20.5, Hydra v2 SDK, rules-go v0.44.2 (with proper resolves), protobuf v25.3 and mass upgrade of Go dependencies.
121 lines
2.9 KiB
Go
121 lines
2.9 KiB
Go
//go:build go1.21
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// +build go1.21
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/*
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Copyright 2023 The logr Authors.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package logr
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import (
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"context"
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"log/slog"
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"runtime"
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"time"
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)
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var (
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_ LogSink = &slogSink{}
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_ CallDepthLogSink = &slogSink{}
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_ Underlier = &slogSink{}
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)
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// Underlier is implemented by the LogSink returned by NewFromLogHandler.
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type Underlier interface {
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// GetUnderlying returns the Handler used by the LogSink.
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GetUnderlying() slog.Handler
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}
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const (
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// nameKey is used to log the `WithName` values as an additional attribute.
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nameKey = "logger"
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// errKey is used to log the error parameter of Error as an additional attribute.
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errKey = "err"
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)
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type slogSink struct {
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callDepth int
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name string
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handler slog.Handler
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}
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func (l *slogSink) Init(info RuntimeInfo) {
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l.callDepth = info.CallDepth
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}
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func (l *slogSink) GetUnderlying() slog.Handler {
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return l.handler
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}
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func (l *slogSink) WithCallDepth(depth int) LogSink {
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newLogger := *l
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newLogger.callDepth += depth
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return &newLogger
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}
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func (l *slogSink) Enabled(level int) bool {
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return l.handler.Enabled(context.Background(), slog.Level(-level))
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}
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func (l *slogSink) Info(level int, msg string, kvList ...interface{}) {
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l.log(nil, msg, slog.Level(-level), kvList...)
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}
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func (l *slogSink) Error(err error, msg string, kvList ...interface{}) {
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l.log(err, msg, slog.LevelError, kvList...)
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}
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func (l *slogSink) log(err error, msg string, level slog.Level, kvList ...interface{}) {
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var pcs [1]uintptr
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// skip runtime.Callers, this function, Info/Error, and all helper functions above that.
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runtime.Callers(3+l.callDepth, pcs[:])
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record := slog.NewRecord(time.Now(), level, msg, pcs[0])
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if l.name != "" {
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record.AddAttrs(slog.String(nameKey, l.name))
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}
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if err != nil {
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record.AddAttrs(slog.Any(errKey, err))
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}
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record.Add(kvList...)
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_ = l.handler.Handle(context.Background(), record)
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}
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func (l slogSink) WithName(name string) LogSink {
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if l.name != "" {
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l.name += "/"
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}
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l.name += name
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return &l
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}
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func (l slogSink) WithValues(kvList ...interface{}) LogSink {
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l.handler = l.handler.WithAttrs(kvListToAttrs(kvList...))
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return &l
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}
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func kvListToAttrs(kvList ...interface{}) []slog.Attr {
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// We don't need the record itself, only its Add method.
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record := slog.NewRecord(time.Time{}, 0, "", 0)
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record.Add(kvList...)
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attrs := make([]slog.Attr, 0, record.NumAttrs())
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record.Attrs(func(attr slog.Attr) bool {
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attrs = append(attrs, attr)
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return true
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})
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return attrs
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}
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