mirror of https://github.com/restic/restic.git
104 lines
2.8 KiB
Go
104 lines
2.8 KiB
Go
package main
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import (
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"github.com/restic/chunker"
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"github.com/restic/restic/internal/backend/location"
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"github.com/restic/restic/internal/errors"
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"github.com/restic/restic/internal/repository"
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"github.com/spf13/cobra"
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)
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var cmdInit = &cobra.Command{
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Use: "init",
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Short: "Initialize a new repository",
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Long: `
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The "init" command initializes a new repository.
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EXIT STATUS
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===========
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Exit status is 0 if the command was successful, and non-zero if there was any error.
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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 runInit(initOptions, globalOptions, args)
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},
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}
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// InitOptions bundles all options for the init command.
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type InitOptions struct {
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secondaryRepoOptions
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CopyChunkerParameters bool
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}
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var initOptions InitOptions
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func init() {
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cmdRoot.AddCommand(cmdInit)
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f := cmdInit.Flags()
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initSecondaryRepoOptions(f, &initOptions.secondaryRepoOptions, "secondary", "to copy chunker parameters from")
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f.BoolVar(&initOptions.CopyChunkerParameters, "copy-chunker-params", false, "copy chunker parameters from the secondary repository (useful with the copy command)")
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}
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func runInit(opts InitOptions, gopts GlobalOptions, args []string) error {
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if gopts.Repo == "" {
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return errors.Fatal("Please specify repository location (-r)")
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}
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chunkerPolynomial, err := maybeReadChunkerPolynomial(opts, gopts)
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if err != nil {
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return err
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}
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be, err := create(gopts.Repo, gopts.extended)
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if err != nil {
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return errors.Fatalf("create repository at %s failed: %v\n", location.StripPassword(gopts.Repo), err)
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}
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gopts.password, err = ReadPasswordTwice(gopts,
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"enter password for new repository: ",
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"enter password again: ")
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if err != nil {
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return err
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}
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s := repository.New(be)
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err = s.Init(gopts.ctx, gopts.password, chunkerPolynomial)
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if err != nil {
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return errors.Fatalf("create key in repository at %s failed: %v\n", location.StripPassword(gopts.Repo), err)
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}
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Verbosef("created restic repository %v at %s\n", s.Config().ID[:10], location.StripPassword(gopts.Repo))
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Verbosef("\n")
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Verbosef("Please note that knowledge of your password is required to access\n")
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Verbosef("the repository. Losing your password means that your data is\n")
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Verbosef("irrecoverably lost.\n")
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return nil
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}
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func maybeReadChunkerPolynomial(opts InitOptions, gopts GlobalOptions) (*chunker.Pol, error) {
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if opts.CopyChunkerParameters {
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otherGopts, err := fillSecondaryGlobalOpts(opts.secondaryRepoOptions, gopts, "secondary")
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if err != nil {
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return nil, err
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}
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otherRepo, err := OpenRepository(otherGopts)
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if err != nil {
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return nil, err
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}
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pol := otherRepo.Config().ChunkerPolynomial
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return &pol, nil
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}
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if opts.Repo != "" {
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return nil, errors.Fatal("Secondary repository must only be specified when copying the chunker parameters")
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}
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return nil, nil
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}
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