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metastore_utils.go
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/
metastore_utils.go
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package metastore
import (
"errors"
"fmt"
"net/url"
"github.com/treeverse/lakefs/pkg/gateway/path"
)
const symlinkInputFormat = "org.apache.hadoop.hive.ql.io.SymlinkTextInputFormat"
var ErrInvalidLocation = errors.New("got empty schema or host while parsing location url, location should be schema://host/path")
func ReplaceBranchName(location, branch string) (string, error) {
u, err := url.Parse(location)
if err != nil {
return "", err
}
if u.Scheme == "" || u.Host == "" {
return "", ErrInvalidLocation
}
p, err := path.ResolvePath(u.Path)
if err != nil {
return "", err
}
return u.Scheme + "://" + u.Host + "/" + branch + "/" + p.Path, nil
}
func ReplaceExternalToLakeFSImported(location, repo, branch string) (string, error) {
u, err := url.Parse(location)
if err != nil {
return "", err
}
if u.Scheme == "" || u.Host == "" {
return "", fmt.Errorf("%w: %s", ErrInvalidLocation, location)
}
return u.Scheme + "://" + repo + "/" + branch + "/" + u.Path, nil
}
func GetSymlinkLocation(location, locationPrefix string) (string, error) {
u, err := url.Parse(location)
if err != nil {
return "", err
}
if u.Scheme == "" || u.Host == "" {
return "", ErrInvalidLocation
}
p, err := path.ResolvePath(u.Path)
if err != nil {
return "", err
}
return locationPrefix + "/" + u.Host + "/" + p.Ref + "/" + p.Path, nil
}
func ExtractRepoAndBranch(metastoreLocationURI string) (string, string, error) {
u, err := url.Parse(metastoreLocationURI)
if err != nil {
return "", "", err
}
if u.Scheme == "" || u.Host == "" {
return "", "", ErrInvalidLocation
}
p, err := path.ResolvePath(u.Path)
if err != nil {
return "", "", err
}
return u.Host, p.Ref, nil
}