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restic/internal/backend/azure/config.go
2017-08-06 21:47:04 +02:00

58 lines
1.3 KiB
Go

package azure
import (
"path"
"strings"
"github.com/restic/restic/internal/errors"
"github.com/restic/restic/internal/options"
)
// Config contains all configuration necessary to connect to an azure compatible
// server.
type Config struct {
AccountName string
AccountKey string
Container string
Prefix string
Connections uint `option:"connections" help:"set a limit for the number of concurrent connections (default: 20)"`
}
// NewConfig returns a new Config with the default values filled in.
func NewConfig() Config {
return Config{
Connections: 5,
}
}
func init() {
options.Register("azure", Config{})
}
// ParseConfig parses the string s and extracts the azure config. The
// configuration format is azure:containerName:/[prefix].
func ParseConfig(s string) (interface{}, error) {
if !strings.HasPrefix(s, "azure:") {
return nil, errors.New("azure: invalid format")
}
// strip prefix "azure:"
s = s[6:]
// use the first entry of the path as the bucket name and the
// remainder as prefix
data := strings.SplitN(s, ":", 2)
if len(data) < 2 {
return nil, errors.New("azure: invalid format: bucket name or path not found")
}
container, path := data[0], path.Clean(data[1])
if strings.HasPrefix(path, "/") {
path = path[1:]
}
cfg := NewConfig()
cfg.Container = container
cfg.Prefix = path
return cfg, nil
}