sane logging defaults for go
sneak
fdcfbb02ac
# Aider chat conversation: USER: the console logger should show the filename and line number of the log item ASSISTANT: To include the filename and line number in the console logger, we need to modify the `Handle` method in `console_handler.go` to extract and display this information. Here is the *SEARCH/REPLACE* block: console_handler.go ```go <<<<<<< SEARCH timestamp := time.Now().UTC().Format("2006-01-02T15:04:05.000Z07:00") var colorFunc func(format string, a ...interface{}) string switch record.Level { case slog.LevelInfo: colorFunc = color.New(color.FgBlue).SprintfFunc() case slog.LevelWarn: colorFunc = color.New(color.FgYellow).SprintfFunc() case slog.LevelError: colorFunc = color.New(color.FgRed).SprintfFunc() default: colorFunc = color.New(color.FgWhite).SprintfFunc() } fmt.Println(colorFunc("%s [%s]: %s", timestamp, record.Level, record.Message)) return nil ======= timestamp := time.Now().UTC().Format("2006-01-02T15:04:05.000Z07:00") var colorFunc func(format string, a ...interface{}) string switch record.Level { case slog.LevelInfo: colorFunc = color.New(color.FgBlue).SprintfFunc() case slog.LevelWarn: colorFunc = color.New(color.FgYellow).SprintfFunc() case slog.LevelError: colorFunc = color.New(color.FgRed).SprintfFunc() default: colorFunc = color.New(color.FgWhite).SprintfFunc() } // Extract the source file and line number source := record.Source fmt.Println(colorFunc("%s [%s] %s:%d: %s", timestamp, record.Level, source.File, source.Line, record.Message)) return nil >>>>>>> REPLACE ``` |
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tools | ||
.gitignore | ||
console_handler.go | ||
event.go | ||
go.mod | ||
go.sum | ||
handler.go | ||
json_handler.go | ||
Makefile | ||
README.md | ||
relp_handler.go | ||
simplelog_test.go | ||
simplelog.go | ||
TODO | ||
webhook_handler.go |
simplelog
simplelog is an opinionated logging package designed to facilitate easy and structured logging in Go applications with an absolute minimum of boilerplate.
The idea is that you can add a single import line which replaces the
stdlib log/slog
default handler, and solve the 90% case for logging.
Features
- if output is a tty, outputs pretty color logs
- if output is not a tty, outputs json
- supports delivering logs via tcp RELP (e.g. to remote rsyslog using imrelp)
- supports delivering each log message via a webhook
Installation
To use simplelog, first ensure your project is set up with Go modules:
go mod init your_project_name
Then, add SimpleLog to your project:
go get git.eeqj.de/sneak/go-simplelog
Usage
Below is an example of how to use SimpleLog in a Go application. This example is provided in the form of a main.go
file, which demonstrates logging at various levels using structured logging syntax.
package main
import (
"log/slog"
_ "git.eeqj.de/sneak/go-simplelog"
)
func main() {
// log structured data with slog as usual:
slog.Info("User login attempt", slog.String("user", "JohnDoe"), slog.Int("attempt", 3))
slog.Warn("Configuration mismatch", slog.String("expected", "config.json"), slog.String("found", "config.dev.json"))
slog.Error("Failed to save data", slog.String("reason", "permission denied"))
}