4807edd23a
Moves logging configuration and setup to a dedicated package. Updates Config struct to use nested LoggingConfig. Updates main.go to use the new logging package.
71 lines
1.4 KiB
Go
71 lines
1.4 KiB
Go
package main
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import (
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"context"
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"flag"
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"fmt"
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"log/slog"
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"os"
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"os/signal"
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"syscall"
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"time"
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"github.com/placeholder/golang-template/internal/config"
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"github.com/placeholder/golang-template/internal/logging"
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)
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func main() {
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// Parse CLI flags
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var configPath string
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flag.StringVar(&configPath, "config", "config/config.yaml", "path to config file")
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flag.Parse()
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// Load Configuration
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cfg, err := config.Load(configPath, "APP")
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if err != nil {
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fmt.Fprintf(os.Stderr, "failed to load config: %v\n", err)
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os.Exit(1)
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}
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// Setup Logger
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logging.Configure(logging.Config{
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Level: cfg.Logging.Level,
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})
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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// Handle OS signals
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go func() {
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sigChan := make(chan os.Signal, 1)
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signal.Notify(sigChan, syscall.SIGINT, syscall.SIGTERM)
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<-sigChan
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slog.Info("Received shutdown signal")
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cancel()
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}()
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if err := run(ctx); err != nil {
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slog.Error("Application error", "error", err)
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os.Exit(1)
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}
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}
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func run(ctx context.Context) error {
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slog.Info("Starting application...")
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// Simulate long running process or server start
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// e.g. server.ListenAndServe()
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<-ctx.Done()
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slog.Info("Shutting down application...")
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// Cleanup with timeout
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_, shutdownCancel := context.WithTimeout(context.Background(), 5*time.Second)
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defer shutdownCancel()
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// Pretend to cleanup
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time.Sleep(100 * time.Millisecond)
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return nil
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}
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