pulling

cmd/cli/commands/pull/pull.go

@@ -0,0 +1,88 @@
+package pull
+
+import (
+	"cloudsave/pkg/game"
+	"cloudsave/pkg/remote/client"
+	"cloudsave/pkg/tools/archive"
+	"cloudsave/pkg/tools/prompt/credentials"
+	"context"
+	"flag"
+	"fmt"
+	"os"
+	"path/filepath"
+
+	"github.com/google/subcommands"
+)
+
+type (
+	PullCmd struct {
+	}
+)
+
+func (*PullCmd) Name() string     { return "pull" }
+func (*PullCmd) Synopsis() string { return "pull a game save from the remote" }
+func (*PullCmd) Usage() string {
+	return `list:
+  Pull a game save from the remote
+`
+}
+
+func (p *PullCmd) SetFlags(f *flag.FlagSet) {
+
+}
+
+func (p *PullCmd) Execute(_ context.Context, f *flag.FlagSet, _ ...interface{}) subcommands.ExitStatus {
+	if f.NArg() != 3 {
+		fmt.Fprintln(os.Stderr, "error: missing arguments")
+		return subcommands.ExitUsageError
+	}
+
+	url := f.Arg(0)
+	gameID := f.Arg(1)
+	path := f.Arg(2)
+
+	username, password, err := credentials.Read()
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "failed to read std output: %s", err)
+		return subcommands.ExitFailure
+	}
+
+	cli := client.New(url, username, password)
+
+	if err := cli.Ping(); err != nil {
+		fmt.Fprintf(os.Stderr, "failed to connect to the remote: %s", err)
+		return subcommands.ExitFailure
+	}
+
+	archivePath := filepath.Join(game.DatastorePath(), gameID, "data.tar.gz")
+
+	m, err := cli.Metadata(gameID)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "failed to get metadata: %s", err)
+		return subcommands.ExitFailure
+	}
+
+	err = game.Register(m, path)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "failed to register local metadata: %s", err)
+		return subcommands.ExitFailure
+	}
+
+	if err := cli.Pull(gameID, archivePath); err != nil {
+		fmt.Fprintf(os.Stderr, "failed to pull from the remote: %s", err)
+		return subcommands.ExitFailure
+	}
+
+	fi, err := os.OpenFile(archivePath, os.O_RDONLY, 0)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "failed to open archive: %s", err)
+		return subcommands.ExitFailure
+	}
+
+	if err := archive.Untar(fi, path); err != nil {
+		fmt.Fprintf(os.Stderr, "failed to unarchive file: %s", err)
+		return subcommands.ExitFailure
+	}
+
+	return subcommands.ExitSuccess
+}