restic/cmd/restic/secondary_repo.go

118 lines
5.2 KiB
Go

package main
import (
"os"
"github.com/restic/restic/internal/errors"
"github.com/spf13/pflag"
)
type secondaryRepoOptions struct {
password string
// from-repo options
Repo string
RepositoryFile string
PasswordFile string
PasswordCommand string
KeyHint string
// repo2 options
LegacyRepo string
LegacyRepositoryFile string
LegacyPasswordFile string
LegacyPasswordCommand string
LegacyKeyHint string
}
func initSecondaryRepoOptions(f *pflag.FlagSet, opts *secondaryRepoOptions, repoPrefix string, repoUsage string) {
f.StringVarP(&opts.LegacyRepo, "repo2", "", "", repoPrefix+" `repository` "+repoUsage+" (default: $RESTIC_REPOSITORY2)")
f.StringVarP(&opts.LegacyRepositoryFile, "repository-file2", "", "", "`file` from which to read the "+repoPrefix+" repository location "+repoUsage+" (default: $RESTIC_REPOSITORY_FILE2)")
f.StringVarP(&opts.LegacyPasswordFile, "password-file2", "", "", "`file` to read the "+repoPrefix+" repository password from (default: $RESTIC_PASSWORD_FILE2)")
f.StringVarP(&opts.LegacyKeyHint, "key-hint2", "", "", "key ID of key to try decrypting the "+repoPrefix+" repository first (default: $RESTIC_KEY_HINT2)")
f.StringVarP(&opts.LegacyPasswordCommand, "password-command2", "", "", "shell `command` to obtain the "+repoPrefix+" repository password from (default: $RESTIC_PASSWORD_COMMAND2)")
// hide repo2 options
_ = f.MarkDeprecated("repo2", "use --repo or --from-repo instead")
_ = f.MarkDeprecated("repository-file2", "use --repository-file or --from-repository-file instead")
_ = f.MarkHidden("password-file2")
_ = f.MarkHidden("key-hint2")
_ = f.MarkHidden("password-command2")
opts.LegacyRepo = os.Getenv("RESTIC_REPOSITORY2")
opts.LegacyRepositoryFile = os.Getenv("RESTIC_REPOSITORY_FILE2")
opts.LegacyPasswordFile = os.Getenv("RESTIC_PASSWORD_FILE2")
opts.LegacyKeyHint = os.Getenv("RESTIC_KEY_HINT2")
opts.LegacyPasswordCommand = os.Getenv("RESTIC_PASSWORD_COMMAND2")
f.StringVarP(&opts.Repo, "from-repo", "", "", "source `repository` "+repoUsage+" (default: $RESTIC_FROM_REPOSITORY)")
f.StringVarP(&opts.RepositoryFile, "from-repository-file", "", "", "`file` from which to read the source repository location "+repoUsage+" (default: $RESTIC_FROM_REPOSITORY_FILE)")
f.StringVarP(&opts.PasswordFile, "from-password-file", "", "", "`file` to read the source repository password from (default: $RESTIC_FROM_PASSWORD_FILE)")
f.StringVarP(&opts.KeyHint, "from-key-hint", "", "", "key ID of key to try decrypting the source repository first (default: $RESTIC_FROM_KEY_HINT)")
f.StringVarP(&opts.PasswordCommand, "from-password-command", "", "", "shell `command` to obtain the source repository password from (default: $RESTIC_FROM_PASSWORD_COMMAND)")
opts.Repo = os.Getenv("RESTIC_FROM_REPOSITORY")
opts.RepositoryFile = os.Getenv("RESTIC_FROM_REPOSITORY_FILE")
opts.PasswordFile = os.Getenv("RESTIC_FROM_PASSWORD_FILE")
opts.KeyHint = os.Getenv("RESTIC_FROM_KEY_HINT")
opts.PasswordCommand = os.Getenv("RESTIC_FROM_PASSWORD_COMMAND")
}
func fillSecondaryGlobalOpts(opts secondaryRepoOptions, gopts GlobalOptions, repoPrefix string) (GlobalOptions, bool, error) {
if opts.Repo == "" && opts.RepositoryFile == "" && opts.LegacyRepo == "" && opts.LegacyRepositoryFile == "" {
return GlobalOptions{}, false, errors.Fatal("Please specify a source repository location (--from-repo or --from-repository-file)")
}
hasFromRepo := opts.Repo != "" || opts.RepositoryFile != "" || opts.PasswordFile != "" ||
opts.KeyHint != "" || opts.PasswordCommand != ""
hasRepo2 := opts.LegacyRepo != "" || opts.LegacyRepositoryFile != "" || opts.LegacyPasswordFile != "" ||
opts.LegacyKeyHint != "" || opts.LegacyPasswordCommand != ""
if hasFromRepo && hasRepo2 {
return GlobalOptions{}, false, errors.Fatal("Option groups repo2 and from-repo are mutually exclusive, please specify only one")
}
var err error
dstGopts := gopts
var pwdEnv string
if hasFromRepo {
if opts.Repo != "" && opts.RepositoryFile != "" {
return GlobalOptions{}, false, errors.Fatal("Options --from-repo and --from-repository-file are mutually exclusive, please specify only one")
}
dstGopts.Repo = opts.Repo
dstGopts.RepositoryFile = opts.RepositoryFile
dstGopts.PasswordFile = opts.PasswordFile
dstGopts.PasswordCommand = opts.PasswordCommand
dstGopts.KeyHint = opts.KeyHint
pwdEnv = "RESTIC_FROM_PASSWORD"
repoPrefix = "source"
} else {
if opts.LegacyRepo != "" && opts.LegacyRepositoryFile != "" {
return GlobalOptions{}, false, errors.Fatal("Options --repo2 and --repository-file2 are mutually exclusive, please specify only one")
}
dstGopts.Repo = opts.LegacyRepo
dstGopts.RepositoryFile = opts.LegacyRepositoryFile
dstGopts.PasswordFile = opts.LegacyPasswordFile
dstGopts.PasswordCommand = opts.LegacyPasswordCommand
dstGopts.KeyHint = opts.LegacyKeyHint
pwdEnv = "RESTIC_PASSWORD2"
}
if opts.password != "" {
dstGopts.password = opts.password
} else {
dstGopts.password, err = resolvePassword(dstGopts, pwdEnv)
if err != nil {
return GlobalOptions{}, false, err
}
}
dstGopts.password, err = ReadPassword(dstGopts, "enter password for "+repoPrefix+" repository: ")
if err != nil {
return GlobalOptions{}, false, err
}
return dstGopts, hasFromRepo, nil
}