restic/internal/backend/gs/config.go

58 lines
1.3 KiB
Go
Raw Normal View History

package gs
import (
"errors"
"path"
"strings"
"github.com/restic/restic/internal/options"
)
// Config contains all configuration necessary to connect to an gcs compatible
// server.
type Config struct {
ProjectID string
JSONKeyPath string
Bucket 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("gs", Config{})
}
// ParseConfig parses the string s and extracts the gcs config. The
// supported configuration format is gs:bucketName:/[prefix].
func ParseConfig(s string) (interface{}, error) {
if strings.HasPrefix(s, "gs:") {
s = s[3:]
} else {
return nil, errors.New("gs: invalid format")
}
// use the first entry of the path as the bucket name and the
// remainder as prefix
path := strings.SplitN(s, ":/", 2)
return createConfig(path)
}
func createConfig(p []string) (interface{}, error) {
if len(p) < 2 {
return nil, errors.New("gs: invalid format, bucket name not found")
}
cfg := NewConfig()
cfg.Bucket = p[0]
if p[1] != "" {
cfg.Prefix = path.Clean(p[1])
}
return cfg, nil
}