mirror of https://github.com/hashicorp/consul
90 lines
1.9 KiB
Go
90 lines
1.9 KiB
Go
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package command
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import (
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"bytes"
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"flag"
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"fmt"
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"os"
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"strings"
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"text/tabwriter"
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"github.com/hashicorp/consul/consul/snapshot"
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"github.com/mitchellh/cli"
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)
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// SnapshotInspectCommand is a Command implementation that is used to display
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// metadata about a snapshot file
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type SnapshotInspectCommand struct {
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Ui cli.Ui
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}
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func (c *SnapshotInspectCommand) Help() string {
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helpText := `
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Usage: consul snapshot inspect [options] FILE
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Displays information about a snapshot file on disk.
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To inspect the file "backup.snap":
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$ consul snapshot inspect backup.snap
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For a full list of options and examples, please see the Consul documentation.
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`
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return strings.TrimSpace(helpText)
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}
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func (c *SnapshotInspectCommand) Run(args []string) int {
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cmdFlags := flag.NewFlagSet("get", flag.ContinueOnError)
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cmdFlags.Usage = func() { c.Ui.Output(c.Help()) }
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if err := cmdFlags.Parse(args); err != nil {
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return 1
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}
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var file string
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args = cmdFlags.Args()
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switch len(args) {
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case 0:
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c.Ui.Error("Missing FILE argument")
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return 1
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case 1:
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file = args[0]
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default:
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c.Ui.Error(fmt.Sprintf("Too many arguments (expected 1, got %d)", len(args)))
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return 1
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}
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// Open the file.
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f, err := os.Open(file)
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if err != nil {
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c.Ui.Error(fmt.Sprintf("Error opening snapshot file: %s", err))
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return 1
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}
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defer f.Close()
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meta, err := snapshot.Verify(f)
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if err != nil {
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c.Ui.Error(fmt.Sprintf("Error verifying snapshot: %s", err))
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}
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var b bytes.Buffer
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tw := tabwriter.NewWriter(&b, 0, 2, 6, ' ', 0)
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fmt.Fprintf(tw, "ID\t%s\n", meta.ID)
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fmt.Fprintf(tw, "Size\t%d\n", meta.Size)
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fmt.Fprintf(tw, "Index\t%d\n", meta.Index)
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fmt.Fprintf(tw, "Term\t%d\n", meta.Term)
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fmt.Fprintf(tw, "Version\t%d\n", meta.Version)
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if err = tw.Flush(); err != nil {
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c.Ui.Error(fmt.Sprintf("Error rendering snapshot info: %s", err))
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}
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c.Ui.Info(b.String())
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return 0
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}
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func (c *SnapshotInspectCommand) Synopsis() string {
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return "Displays information about a Consul snapshot file"
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}
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