93 lines
1.6 KiB
Go
93 lines
1.6 KiB
Go
package main
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import (
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"context"
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"fmt"
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"io"
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"log"
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"log/slog"
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"net"
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"net/http"
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"os"
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"os/signal"
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"sync"
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"time"
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)
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type Config struct {
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Host string
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Port string
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}
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func run(
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ctx context.Context,
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config *Config,
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args []string,
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getenv func(string) string,
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stdin io.Reader,
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stdout, stderr io.Writer,
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) error {
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ctx, cancel := signal.NotifyContext(ctx, os.Interrupt)
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defer cancel()
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mux := http.NewServeMux()
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addRoutes(
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mux,
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)
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httpServer := &http.Server{
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Addr: net.JoinHostPort(config.Host, config.Port),
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Handler: mux,
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}
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go func() {
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log.Printf("listening on %s\n", httpServer.Addr)
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if err := httpServer.ListenAndServe(); err != nil && err != http.ErrServerClosed {
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fmt.Fprintf(os.Stderr, "error listening and serving: %+v\n", err)
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}
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}()
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var wg sync.WaitGroup
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wg.Add(1)
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go func() {
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defer wg.Done()
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<-ctx.Done()
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shutdownCtx := context.Background()
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shutdownCtx, cancel := context.WithTimeout(shutdownCtx, 10*time.Second)
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defer cancel()
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if err := httpServer.Shutdown(shutdownCtx); err != nil {
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fmt.Fprintf(os.Stderr, "error shutting down http server: %+v\n", err)
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}
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}()
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wg.Wait()
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return nil
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}
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func main() {
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ctx := context.Background()
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var opts *slog.HandlerOptions
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if os.Getenv("TFSTATE_DEBUG") != "" {
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opts = &slog.HandlerOptions{
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AddSource: true,
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Level: slog.LevelDebug,
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}
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}
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logger := slog.New(slog.NewJSONHandler(os.Stdout, opts))
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slog.SetDefault(logger)
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config := Config{
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Host: "0.0.0.0",
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Port: "8080",
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}
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if err := run(
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ctx,
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&config,
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os.Args,
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os.Getenv,
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os.Stdin,
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os.Stdout, os.Stderr,
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); err != nil {
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fmt.Fprintf(os.Stderr, "%+v\n", err)
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os.Exit(1)
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}
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}
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