mirror of https://github.com/restic/restic.git
104 lines
2.2 KiB
Go
104 lines
2.2 KiB
Go
package main
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import (
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"context"
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"fmt"
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"net"
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"net/http"
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"time"
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"github.com/spf13/cobra"
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"github.com/restic/restic/internal/errors"
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"github.com/restic/restic/internal/restic"
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"github.com/restic/restic/internal/server"
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)
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var cmdServe = &cobra.Command{
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Use: "serve",
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Short: "runs a web server to browse a repository",
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Long: `
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The serve command runs a web server to browse a repository.
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`,
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DisableAutoGenTag: true,
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RunE: func(cmd *cobra.Command, args []string) error {
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return runWebServer(cmd.Context(), serveOptions, globalOptions, args)
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},
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}
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type ServeOptions struct {
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Listen string
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}
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var serveOptions ServeOptions
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func init() {
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cmdRoot.AddCommand(cmdServe)
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cmdFlags := cmdServe.Flags()
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cmdFlags.StringVarP(&serveOptions.Listen, "listen", "l", "localhost:3080", "set the listen host name and `address`")
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}
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const serverShutdownTimeout = 30 * time.Second
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func runWebServer(ctx context.Context, opts ServeOptions, gopts GlobalOptions, args []string) error {
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if len(args) > 0 {
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return errors.Fatal("this command does not accept additional arguments")
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}
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ctx, repo, unlock, err := openWithExclusiveLock(ctx, gopts, gopts.NoLock)
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if err != nil {
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return err
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}
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defer unlock()
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snapshotLister, err := restic.MemorizeList(ctx, repo, restic.SnapshotFile)
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if err != nil {
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return err
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}
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bar := newIndexProgress(gopts.Quiet, gopts.JSON)
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err = repo.LoadIndex(ctx, bar)
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if err != nil {
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return err
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}
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srv := http.Server{
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BaseContext: func(l net.Listener) context.Context {
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// just return the global context
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return ctx
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},
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Handler: server.New(repo, snapshotLister, TimeFormat),
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}
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listener, err := net.Listen("tcp", opts.Listen)
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if err != nil {
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return fmt.Errorf("start listener: %v", err)
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}
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// wait until context is cancelled, then close listener
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go func() {
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<-ctx.Done()
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Printf("gracefully shutting down server\n")
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ctxTimeout, cancel := context.WithTimeout(context.Background(), serverShutdownTimeout)
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defer cancel()
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_ = srv.Shutdown(ctxTimeout)
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}()
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Printf("Now serving the repository at http://%s\n", opts.Listen)
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Printf("When finished, quit with Ctrl-c here.\n")
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err = srv.Serve(listener)
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if errors.Is(err, http.ErrServerClosed) {
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err = nil
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}
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if err != nil {
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return fmt.Errorf("serve: %v", err)
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}
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return nil
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}
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