Files
webhooker/internal/logger/logger.go
clawbot 4d5ebfd692
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refactor: use pinned golangci-lint Docker image for linting
Refactor Dockerfile to use a separate lint stage with a pinned
golangci-lint v2.11.3 Docker image instead of installing
golangci-lint via curl in the builder stage. This follows the
pattern used by sneak/pixa.

Changes:
- Dockerfile: separate lint stage using golangci/golangci-lint:v2.11.3
  (Debian-based, pinned by sha256) with COPY --from=lint dependency
- Bump Go from 1.24 to 1.26.1 (golang:1.26.1-bookworm, pinned)
- Bump golangci-lint from v1.64.8 to v2.11.3
- Migrate .golangci.yml from v1 to v2 format (same linters, format only)
- All Docker images pinned by sha256 digest
- Fix all lint issues from the v2 linter upgrade:
  - Add package comments to all packages
  - Add doc comments to all exported types, functions, and methods
  - Fix unchecked errors (errcheck)
  - Fix unused parameters (revive)
  - Fix gosec warnings (MaxBytesReader for form parsing)
  - Fix staticcheck suggestions (fmt.Fprintf instead of WriteString)
  - Rename DeliveryTask to Task to avoid stutter (delivery.Task)
  - Rename shadowed builtin 'max' parameter
- Update README.md version requirements
2026-03-17 05:46:03 -07:00

100 lines
2.4 KiB
Go

// Package logger provides structured logging with dynamic level control.
package logger
import (
"io"
"log/slog"
"os"
"time"
"go.uber.org/fx"
"sneak.berlin/go/webhooker/internal/globals"
)
//nolint:revive // LoggerParams is a standard fx naming convention.
type LoggerParams struct {
fx.In
Globals *globals.Globals
}
// Logger wraps slog with dynamic level control and structured output.
type Logger struct {
logger *slog.Logger
levelVar *slog.LevelVar
params LoggerParams
}
// New creates a Logger that outputs text (TTY) or JSON (non-TTY) to stdout.
//
//nolint:revive // lc parameter is required by fx even if unused.
func New(lc fx.Lifecycle, params LoggerParams) (*Logger, error) {
l := new(Logger)
l.params = params
// Use slog.LevelVar for dynamic log level changes
l.levelVar = new(slog.LevelVar)
l.levelVar.Set(slog.LevelInfo)
// Determine if we're running in a terminal
tty := false
if fileInfo, _ := os.Stdout.Stat(); (fileInfo.Mode() & os.ModeCharDevice) != 0 {
tty = true
}
//nolint:revive // groups param unused but required by slog ReplaceAttr signature.
replaceAttr := func(_ []string, a slog.Attr) slog.Attr {
// Always use UTC for timestamps
if a.Key == slog.TimeKey {
if t, ok := a.Value.Any().(time.Time); ok {
return slog.Time(slog.TimeKey, t.UTC())
}
}
return a
}
var handler slog.Handler
opts := &slog.HandlerOptions{
Level: l.levelVar,
ReplaceAttr: replaceAttr,
}
if tty {
// Use text handler for terminal output (human-readable)
handler = slog.NewTextHandler(os.Stdout, opts)
} else {
// Use JSON handler for production (machine-readable)
handler = slog.NewJSONHandler(os.Stdout, opts)
}
l.logger = slog.New(handler)
// Set as default logger
slog.SetDefault(l.logger)
return l, nil
}
// EnableDebugLogging switches the log level to debug.
func (l *Logger) EnableDebugLogging() {
l.levelVar.Set(slog.LevelDebug)
l.logger.Debug("debug logging enabled", "debug", true)
}
// Get returns the underlying slog.Logger.
func (l *Logger) Get() *slog.Logger {
return l.logger
}
// Identify logs the application name and version at startup.
func (l *Logger) Identify() {
l.logger.Info("starting",
"appname", l.params.Globals.Appname,
"version", l.params.Globals.Version,
)
}
// Writer returns an io.Writer suitable for standard library loggers.
func (l *Logger) Writer() io.Writer {
return os.Stdout
}