100 lines
2.0 KiB
Go
100 lines
2.0 KiB
Go
package migrate
|
|
|
|
import (
|
|
"errors"
|
|
"fmt"
|
|
nurl "net/url"
|
|
"strings"
|
|
)
|
|
|
|
// MultiError holds multiple errors.
|
|
//
|
|
// Deprecated: Use github.com/hashicorp/go-multierror instead
|
|
type MultiError struct {
|
|
Errs []error
|
|
}
|
|
|
|
// NewMultiError returns an error type holding multiple errors.
|
|
//
|
|
// Deprecated: Use github.com/hashicorp/go-multierror instead
|
|
//
|
|
func NewMultiError(errs ...error) MultiError {
|
|
compactErrs := make([]error, 0)
|
|
for _, e := range errs {
|
|
if e != nil {
|
|
compactErrs = append(compactErrs, e)
|
|
}
|
|
}
|
|
return MultiError{compactErrs}
|
|
}
|
|
|
|
// Error implements error. Multiple errors are concatenated with 'and's.
|
|
func (m MultiError) Error() string {
|
|
var strs = make([]string, 0)
|
|
for _, e := range m.Errs {
|
|
if len(e.Error()) > 0 {
|
|
strs = append(strs, e.Error())
|
|
}
|
|
}
|
|
return strings.Join(strs, " and ")
|
|
}
|
|
|
|
// suint safely converts int to uint
|
|
// see https://goo.gl/wEcqof
|
|
// see https://goo.gl/pai7Dr
|
|
func suint(n int) uint {
|
|
if n < 0 {
|
|
panic(fmt.Sprintf("suint(%v) expects input >= 0", n))
|
|
}
|
|
return uint(n)
|
|
}
|
|
|
|
var errNoScheme = errors.New("no scheme")
|
|
var errEmptyURL = errors.New("URL cannot be empty")
|
|
|
|
func sourceSchemeFromURL(url string) (string, error) {
|
|
u, err := schemeFromURL(url)
|
|
if err != nil {
|
|
return "", fmt.Errorf("source: %v", err)
|
|
}
|
|
return u, nil
|
|
}
|
|
|
|
func databaseSchemeFromURL(url string) (string, error) {
|
|
u, err := schemeFromURL(url)
|
|
if err != nil {
|
|
return "", fmt.Errorf("database: %v", err)
|
|
}
|
|
return u, nil
|
|
}
|
|
|
|
// schemeFromURL returns the scheme from a URL string
|
|
func schemeFromURL(url string) (string, error) {
|
|
if url == "" {
|
|
return "", errEmptyURL
|
|
}
|
|
|
|
u, err := nurl.Parse(url)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
if len(u.Scheme) == 0 {
|
|
return "", errNoScheme
|
|
}
|
|
|
|
return u.Scheme, nil
|
|
}
|
|
|
|
// FilterCustomQuery filters all query values starting with `x-`
|
|
func FilterCustomQuery(u *nurl.URL) *nurl.URL {
|
|
ux := *u
|
|
vx := make(nurl.Values)
|
|
for k, v := range ux.Query() {
|
|
if len(k) <= 1 || (len(k) > 1 && k[0:2] != "x-") {
|
|
vx[k] = v
|
|
}
|
|
}
|
|
ux.RawQuery = vx.Encode()
|
|
return &ux
|
|
}
|