// Open the backend specified by URI.
// Valid formats are:
// * /foo/bar -> local repository at /foo/bar
// * s3://region/bucket -> amazon s3 bucket
// * sftp://user@host/foo/bar -> remote sftp repository on host for user at path foo/bar
// * sftp://host//tmp/backup -> remote sftp repository on host at path /tmp/backup
// * c:\temp -> local repository at c:\temp - the path must exist
func open(u string) (backend.Backend, error) {
// check if the url is a directory that exists
fi, err := os.Stat(u)
if err == nil && fi.IsDir() {
return local.Open(u)
}
url, err := url.Parse(u)
if err != nil {
return nil, err
}
if url.Scheme == "" {
return local.Open(url.Path)
}
if len(url.Path) < 1 {
return nil, fmt.Errorf("unable to parse url %v", url)
}
if url.Scheme == "s3" {
return s3.Open(url.Host, url.Path[1:])
}
args := []string{url.Host}
if url.User != nil && url.User.Username() != "" {
args = append(args, "-l")
args = append(args, url.User.Username())
}
args = append(args, "-s")
args = append(args, "sftp")
return sftp.Open(url.Path[1:], "ssh", args...)
}
// Open the backend specified by a location config.
func open(s string) (backend.Backend, error) {
debug.Log("open", "parsing location %v", s)
loc, err := location.Parse(s)
if err != nil {
return nil, err
}
switch loc.Scheme {
case "local":
debug.Log("open", "opening local repository at %#v", loc.Config)
return local.Open(loc.Config.(string))
case "sftp":
debug.Log("open", "opening sftp repository at %#v", loc.Config)
return sftp.OpenWithConfig(loc.Config.(sftp.Config))
case "s3":
cfg := loc.Config.(s3.Config)
if cfg.KeyID == "" {
cfg.KeyID = os.Getenv("AWS_ACCESS_KEY_ID")
}
if cfg.Secret == "" {
cfg.Secret = os.Getenv("AWS_SECRET_ACCESS_KEY")
}
debug.Log("open", "opening s3 repository at %#v", cfg)
return s3.Open(cfg)
}
debug.Log("open", "invalid repository location: %v", s)
return nil, fmt.Errorf("invalid scheme %q", loc.Scheme)
}
// OpenLocalRepo opens the local repository located at dir.
func OpenLocalRepo(t testing.TB, dir string) *repository.Repository {
be, err := local.Open(dir)
OK(t, err)
repo := repository.New(be)
err = repo.SearchKey(TestPassword)
OK(t, err)
return repo
}
func TestLocalBackend(t *testing.T) {
// test for non-existing backend
b, err := local.Open("/invalid-restic-test")
Assert(t, err != nil, "opening invalid repository at /invalid-restic-test should have failed, but err is nil")
Assert(t, b == nil, fmt.Sprintf("opening invalid repository at /invalid-restic-test should have failed, but b is not nil: %v", b))
s := setupLocalBackend(t)
defer teardownLocalBackend(t, s)
testBackend(s, t)
}
// Open the backend specified by URI.
// Valid formats are:
// * /foo/bar -> local repository at /foo/bar
// * s3://region/bucket -> amazon s3 bucket
// * sftp://user@host/foo/bar -> remote sftp repository on host for user at path foo/bar
// * sftp://host//tmp/backup -> remote sftp repository on host at path /tmp/backup
func open(u string) (backend.Backend, error) {
url, err := url.Parse(u)
if err != nil {
return nil, err
}
if url.Scheme == "" {
return local.Open(url.Path)
} else if url.Scheme == "s3" {
return s3.Open(url.Host, url.Path[1:])
}
args := []string{url.Host}
if url.User != nil && url.User.Username() != "" {
args = append(args, "-l")
args = append(args, url.User.Username())
}
args = append(args, "-s")
args = append(args, "sftp")
return sftp.Open(url.Path[1:], "ssh", args...)
}