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Add SFTP backend

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This commit is contained in:
Alexander Neumann
2014-10-04 19:20:15 +02:00
parent bfd99a9be6
commit f848afed27
6 changed files with 456 additions and 37 deletions
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2
cmd/khepri/cmd_backup.go
View File

@@ -21,7 +21,7 @@ func commandBackup(be backend.Server, key *khepri.Key, args []string) error {
fmt.Fprintf(os.Stderr, "err: %v\n", err)
}
arch.Error = func(dir string, fi os.FileInfo, err error) error {
fmt.Fprintf(os.Stderr, "error for %s: %v\n%s\n", dir, err, fi)
fmt.Fprintf(os.Stderr, "error for %s: %v\n%v\n", dir, err, fi)
return err
}

34
cmd/khepri/cmd_init.go
View File

@@ -1,34 +0,0 @@
package main
import (
"fmt"
"os"
"github.com/fd0/khepri"
"github.com/fd0/khepri/backend"
)
func commandInit(path string) error {
pw := read_password("enter password for new backend: ")
pw2 := read_password("enter password again: ")
if pw != pw2 {
errx(1, "passwords do not match")
}
be, err := backend.CreateLocal(path)
if err != nil {
fmt.Fprintf(os.Stderr, "creating local backend at %s failed: %v\n", path, err)
os.Exit(1)
}
_, err = khepri.CreateKey(be, pw)
if err != nil {
fmt.Fprintf(os.Stderr, "creating key in local backend at %s failed: %v\n", path, err)
os.Exit(1)
}
fmt.Printf("created khepri backend at %s\n", be.Location())
return nil
}

74
cmd/khepri/main.go
View File

@@ -3,6 +3,7 @@ package main
import (
"fmt"
"log"
"net/url"
"os"
"sort"
"strings"
@@ -46,6 +47,77 @@ func read_password(prompt string) string {
return string(pw)
}
func commandInit(repo string) error {
pw := read_password("enter password for new backend: ")
pw2 := read_password("enter password again: ")
if pw != pw2 {
errx(1, "passwords do not match")
}
be, err := create(repo)
if err != nil {
fmt.Fprintf(os.Stderr, "creating backend at %s failed: %v\n", repo, err)
os.Exit(1)
}
_, err = khepri.CreateKey(be, pw)
if err != nil {
fmt.Fprintf(os.Stderr, "creating key in backend at %s failed: %v\n", repo, err)
os.Exit(1)
}
fmt.Printf("created khepri backend at %s\n", be.Location())
return nil
}
// Open the backend specified by URI.
// Valid formats are:
// * /foo/bar -> local repository at /foo/bar
// * 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.Server, error) {
url, err := url.Parse(u)
if err != nil {
return nil, err
}
if url.Scheme == "" {
return backend.OpenLocal(url.Path)
} else {
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 backend.OpenSFTP(url.Path[1:], "ssh", args...)
}
}
// Create the backend specified by URI.
func create(u string) (backend.Server, error) {
url, err := url.Parse(u)
if err != nil {
return nil, err
}
if url.Scheme == "" {
return backend.CreateLocal(url.Path)
} else {
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 backend.CreateSFTP(url.Path[1:], "ssh", args...)
}
}
func init() {
commands = make(map[string]commandFunc)
commands["backup"] = commandBackup
@@ -94,7 +166,7 @@ func main() {
}
// read_password("enter password: ")
repo, err := backend.OpenLocal(Opts.Repo)
repo, err := open(Opts.Repo)
if err != nil {
errx(1, "unable to open repo: %v", err)
}