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|
package config
import (
"errors"
"strings"
format "github.com/go-git/go-git/v5/plumbing/format/config"
)
var (
errURLEmptyInsteadOf = errors.New("url config: empty insteadOf")
)
// Url defines Url rewrite rules
type URL struct {
// Name new base url
Name string
// Any URL that starts with this value will be rewritten to start, instead, with <base>.
// When more than one insteadOf strings match a given URL, the longest match is used.
InsteadOf string
// raw representation of the subsection, filled by marshal or unmarshal are
// called.
raw *format.Subsection
}
// Validate validates fields of branch
func (b *URL) Validate() error {
if b.InsteadOf == "" {
return errURLEmptyInsteadOf
}
return nil
}
const (
insteadOfKey = "insteadOf"
)
func (u *URL) unmarshal(s *format.Subsection) error {
u.raw = s
u.Name = s.Name
u.InsteadOf = u.raw.Option(insteadOfKey)
return nil
}
func (u *URL) marshal() *format.Subsection {
if u.raw == nil {
u.raw = &format.Subsection{}
}
u.raw.Name = u.Name
u.raw.SetOption(insteadOfKey, u.InsteadOf)
return u.raw
}
func findLongestInsteadOfMatch(remoteURL string, urls map[string]*URL) *URL {
var longestMatch *URL
for _, u := range urls {
if !strings.HasPrefix(remoteURL, u.InsteadOf) {
continue
}
// according to spec if there is more than one match, take the logest
if longestMatch == nil || len(longestMatch.InsteadOf) < len(u.InsteadOf) {
longestMatch = u
}
}
return longestMatch
}
func (u *URL) ApplyInsteadOf(url string) string {
if !strings.HasPrefix(url, u.InsteadOf) {
return url
}
return u.Name + url[len(u.InsteadOf):]
}
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