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https://github.com/octoleo/restic.git
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7048cc3e58
Add a copy command to copy snapshots between repositories. It allows the user to specify a destination repository, password, password-file, password-command or key-hint to supply the necessary details to open the destination repository. You need to supply a list of snapshots to copy, snapshots which already exist in the destination repository will be skipped. Note, when using the network this becomes rather slow, as it needs to read the blocks, decrypt them using the source key, then encrypt them again using the destination key before finally writing them out to the destination repository.
118 lines
2.7 KiB
Go
118 lines
2.7 KiB
Go
package main
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import (
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"bufio"
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"bytes"
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"fmt"
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"log"
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"os"
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"runtime"
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"github.com/restic/restic/internal/debug"
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"github.com/restic/restic/internal/options"
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"github.com/restic/restic/internal/restic"
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"github.com/spf13/cobra"
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"github.com/restic/restic/internal/errors"
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)
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// cmdRoot is the base command when no other command has been specified.
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var cmdRoot = &cobra.Command{
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Use: "restic",
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Short: "Backup and restore files",
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Long: `
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restic is a backup program which allows saving multiple revisions of files and
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directories in an encrypted repository stored on different backends.
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`,
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SilenceErrors: true,
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SilenceUsage: true,
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DisableAutoGenTag: true,
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PersistentPreRunE: func(c *cobra.Command, args []string) error {
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// set verbosity, default is one
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globalOptions.verbosity = 1
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if globalOptions.Quiet && (globalOptions.Verbose > 1) {
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return errors.Fatal("--quiet and --verbose cannot be specified at the same time")
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}
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switch {
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case globalOptions.Verbose >= 2:
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globalOptions.verbosity = 3
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case globalOptions.Verbose > 0:
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globalOptions.verbosity = 2
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case globalOptions.Quiet:
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globalOptions.verbosity = 0
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}
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// parse extended options
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opts, err := options.Parse(globalOptions.Options)
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if err != nil {
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return err
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}
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globalOptions.extended = opts
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if c.Name() == "version" {
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return nil
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}
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pwd, err := resolvePassword(globalOptions, "RESTIC_PASSWORD")
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if err != nil {
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fmt.Fprintf(os.Stderr, "Resolving password failed: %v\n", err)
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Exit(1)
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}
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globalOptions.password = pwd
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// run the debug functions for all subcommands (if build tag "debug" is
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// enabled)
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if err := runDebug(); err != nil {
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return err
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}
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return nil
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},
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}
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var logBuffer = bytes.NewBuffer(nil)
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func init() {
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// install custom global logger into a buffer, if an error occurs
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// we can show the logs
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log.SetOutput(logBuffer)
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}
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func main() {
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debug.Log("main %#v", os.Args)
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debug.Log("restic %s compiled with %v on %v/%v",
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version, runtime.Version(), runtime.GOOS, runtime.GOARCH)
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err := cmdRoot.Execute()
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switch {
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case restic.IsAlreadyLocked(errors.Cause(err)):
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fmt.Fprintf(os.Stderr, "%v\nthe `unlock` command can be used to remove stale locks\n", err)
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case err == ErrInvalidSourceData:
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fmt.Fprintf(os.Stderr, "Warning: %v\n", err)
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case errors.IsFatal(errors.Cause(err)):
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fmt.Fprintf(os.Stderr, "%v\n", err)
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case err != nil:
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fmt.Fprintf(os.Stderr, "%+v\n", err)
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if logBuffer.Len() > 0 {
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fmt.Fprintf(os.Stderr, "also, the following messages were logged by a library:\n")
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sc := bufio.NewScanner(logBuffer)
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for sc.Scan() {
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fmt.Fprintln(os.Stderr, sc.Text())
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}
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}
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}
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var exitCode int
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switch err {
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case nil:
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exitCode = 0
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case ErrInvalidSourceData:
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exitCode = 3
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default:
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exitCode = 1
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}
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Exit(exitCode)
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}
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