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sftp: Reduce duplicate code, add error check

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This commit is contained in:
Alexander Neumann 2016-01-26 22:16:17 +01:00
parent 0bbad683c5
commit 1528d1ca83
2 changed files with 17 additions and 24 deletions
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38
backend/sftp/sftp.go
View File

@ -64,6 +64,18 @@ func startClient(program string, args ...string) (*SFTP, error) {
return &SFTP{c: client, cmd: cmd}, nil
}
func paths(dir string) []string {
return []string{
dir,
Join(dir, backend.Paths.Data),
Join(dir, backend.Paths.Snapshots),
Join(dir, backend.Paths.Index),
Join(dir, backend.Paths.Locks),
Join(dir, backend.Paths.Keys),
Join(dir, backend.Paths.Temp),
}
}
// Open opens an sftp backend. When the command is started via
// exec.Command, it is expected to speak sftp on stdin/stdout. The backend
// is expected at the given path.
@ -74,16 +86,7 @@ func Open(dir string, program string, args ...string) (*SFTP, error) {
}
// test if all necessary dirs and files are there
items := []string{
dir,
Join(dir, backend.Paths.Data),
Join(dir, backend.Paths.Snapshots),
Join(dir, backend.Paths.Index),
Join(dir, backend.Paths.Locks),
Join(dir, backend.Paths.Keys),
Join(dir, backend.Paths.Temp),
}
for _, d := range items {
for _, d := range paths(dir) {
if _, err := sftp.c.Lstat(d); err != nil {
return nil, fmt.Errorf("%s does not exist", d)
}
@ -118,16 +121,6 @@ func Create(dir string, program string, args ...string) (*SFTP, error) {
return nil, err
}
dirs := []string{
dir,
Join(dir, backend.Paths.Data),
Join(dir, backend.Paths.Snapshots),
Join(dir, backend.Paths.Index),
Join(dir, backend.Paths.Locks),
Join(dir, backend.Paths.Keys),
Join(dir, backend.Paths.Temp),
}
// test if config file already exists
_, err = sftp.c.Lstat(Join(dir, backend.Paths.Config))
if err == nil {
@ -135,7 +128,7 @@ func Create(dir string, program string, args ...string) (*SFTP, error) {
}
// create paths for data, refs and temp blobs
for _, d := range dirs {
for _, d := range paths(dir) {
err = sftp.mkdirAll(d, backend.Modes.Dir)
if err != nil {
return nil, err
@ -457,7 +450,8 @@ func (r *SFTP) Close() error {
return nil
}
r.c.Close()
err := r.c.Close()
debug.Log("sftp.Close", "Close returned error %v", err)
if err := r.cmd.Process.Kill(); err != nil {
return err

3
backend/sftp/sftp_backend_test.go
View File

@ -38,8 +38,7 @@ func init() {
for _, dir := range strings.Split(TestSFTPPath, ":") {
testpath := filepath.Join(dir, "sftp-server")
fd, err := os.Open(testpath)
fd.Close()
_, err := os.Stat(testpath)
if !os.IsNotExist(err) {
sftpserver = testpath
break