// 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...)
}
func init() {
sftpserver := ""
for _, dir := range strings.Split(TestSFTPPath, ":") {
testpath := filepath.Join(dir, "sftp-server")
_, err := os.Stat(testpath)
if !os.IsNotExist(err) {
sftpserver = testpath
break
}
}
if sftpserver == "" {
SkipMessage = "sftp server binary not found, skipping tests"
return
}
test.CreateFn = func() (backend.Backend, error) {
err := createTempdir()
if err != nil {
return nil, err
}
return sftp.Create(tempBackendDir, sftpserver)
}
test.OpenFn = func() (backend.Backend, error) {
err := createTempdir()
if err != nil {
return nil, err
}
return sftp.Open(tempBackendDir, sftpserver)
}
test.CleanupFn = func() error {
if tempBackendDir == "" {
return nil
}
fmt.Printf("removing test backend at %v\n", tempBackendDir)
err := os.RemoveAll(tempBackendDir)
tempBackendDir = ""
return err
}
}
// 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...)
}