mirror of
https://github.com/akvorado/akvorado.git
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1ec89aac1f
revive default configuration has changed in 1.3.0. Some stuff is a bit silly (like empty blocks), but I find it easier to follow that than to try to tweak the configuration.
55 lines
1.5 KiB
Go
55 lines
1.5 KiB
Go
// SPDX-FileCopyrightText: 2022 Free Mobile
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// SPDX-License-Identifier: AGPL-3.0-only
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// Package logger handles logging for akvorado.
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//
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// This is a thin wrapper around zerolog. It is currently not
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// configurable as we don't need anything fancy yet for configuration.
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//
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// It also brings some conventions like the presence of "module" in
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// each context to be able to filter logs more easily. However, this
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// convention is not really enforced. Once you have a root logger,
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// create sublogger with New and provide a new value for "module".
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package logger
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import (
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"strings"
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"github.com/rs/zerolog"
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"github.com/rs/zerolog/log"
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"akvorado/common/reporter/stack"
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)
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// Logger is a logger instance. It is compatible with the interface
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// from zerolog by design.
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type Logger struct {
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zerolog.Logger
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}
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// New creates a new logger
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func New(_ Configuration) (Logger, error) {
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// Initialize the logger
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logger := log.Logger.Hook(contextHook{})
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return Logger{logger}, nil
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}
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type contextHook struct{}
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// Run adds more context to an event, including "module" and "caller".
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func (h contextHook) Run(e *zerolog.Event, _ zerolog.Level, _ string) {
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callStack := stack.Callers()
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callStack = callStack[3:] // Trial and error, there is a test to check it works
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caller := callStack[0].SourceFile(true)
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e.Str("caller", caller)
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for _, call := range callStack {
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module := call.FunctionName()
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if !strings.HasPrefix(module, stack.ModuleName) {
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continue
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}
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module = strings.SplitN(module, ".", 2)[0]
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e.Str("module", module)
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break
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}
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}
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