mirror of https://github.com/restic/restic.git
67 lines
1.5 KiB
Go
67 lines
1.5 KiB
Go
|
// Package uri implements parsing the restic repository location from a string.
|
||
|
|
package uri
|
||
|
|
|
||
|
|
import (
|
||
|
|
"strings"
|
||
|
|
|
||
|
|
"github.com/restic/restic/backend/local"
|
||
|
|
"github.com/restic/restic/backend/s3"
|
||
|
|
"github.com/restic/restic/backend/sftp"
|
||
|
|
)
|
||
|
|
|
||
|
|
// URI specifies the location of a repository, including the method of access
|
||
|
|
// and (possibly) credentials needed for access.
|
||
|
|
type URI struct {
|
||
|
|
Scheme string
|
||
|
|
Config interface{}
|
||
|
|
}
|
||
|
|
|
||
|
|
type parser struct {
|
||
|
|
scheme string
|
||
|
|
parse func(string) (interface{}, error)
|
||
|
|
}
|
||
|
|
|
||
|
|
// parsers is a list of valid config parsers for the backends. The first parser
|
||
|
|
// is the fallback and should always be set to the local backend.
|
||
|
|
var parsers = []parser{
|
||
|
|
{"local", local.ParseConfig},
|
||
|
|
{"sftp", sftp.ParseConfig},
|
||
|
|
{"s3", s3.ParseConfig},
|
||
|
|
}
|
||
|
|
|
||
|
|
// ParseURI parses a repository location from the string s. If s starts with a
|
||
|
|
// backend name followed by a colon, that backend's Parse() function is called.
|
||
|
|
// Otherwise, the local backend is used which interprets s as the name of a
|
||
|
|
// directory.
|
||
|
|
func ParseURI(s string) (u URI, err error) {
|
||
|
|
scheme := extractScheme(s)
|
||
|
|
u.Scheme = scheme
|
||
|
|
|
||
|
|
for _, parser := range parsers {
|
||
|
|
if parser.scheme != scheme {
|
||
|
|
continue
|
||
|
|
}
|
||
|
|
|
||
|
|
u.Config, err = parser.parse(s)
|
||
|
|
if err != nil {
|
||
|
|
return URI{}, err
|
||
|
|
}
|
||
|
|
|
||
|
|
return u, nil
|
||
|
|
}
|
||
|
|
|
||
|
|
// try again, with the local parser and the prefix "local:"
|
||
|
|
u.Scheme = "local"
|
||
|
|
u.Config, err = local.ParseConfig("local:" + s)
|
||
|
|
if err != nil {
|
||
|
|
return URI{}, err
|
||
|
|
}
|
||
|
|
|
||
|
|
return u, nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func extractScheme(s string) string {
|
||
|
|
data := strings.SplitN(s, ":", 2)
|
||
|
|
return data[0]
|
||
|
|
}
|