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// Copyright 2019 The Gitea Authors. All rights reserved.
// Copyright 2015 The Gogs Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package git
import (
"fmt"
"net"
"net/url"
"regexp"
"strings"
)
var scpSyntax = regexp.MustCompile(`^([a-zA-Z0-9_]+@)?([a-zA-Z0-9._-]+):(.*)$`)
// SubModule submodule is a reference on git repository
type SubModule struct {
Name string
URL string
}
// SubModuleFile represents a file with submodule type.
type SubModuleFile struct {
*Commit
refURL string
refID string
}
// NewSubModuleFile create a new submodule file
func NewSubModuleFile(c *Commit, refURL, refID string) *SubModuleFile {
return &SubModuleFile{
Commit: c,
refURL: refURL,
refID: refID,
}
}
func getRefURL(refURL, urlPrefix, parentPath string) string {
if refURL == "" {
return ""
}
refURI := strings.TrimSuffix(refURL, ".git")
prefixURL, _ := url.Parse(urlPrefix)
urlPrefixHostname, _, err := net.SplitHostPort(prefixURL.Host)
if err != nil {
urlPrefixHostname = prefixURL.Host
}
// Relative url prefix check (according to git submodule documentation)
if strings.HasPrefix(refURI, "./") || strings.HasPrefix(refURI, "../") {
// ...construct and return correct submodule url here...
idx := strings.Index(parentPath, "/src/")
if idx == -1 {
return refURI
}
return strings.TrimSuffix(urlPrefix, "/") + parentPath[:idx] + "/" + refURI
}
if !strings.Contains(refURI, "://") {
// scp style syntax which contains *no* port number after the : (and is not parsed by net/url)
// ex: git@try.gitea.io:go-gitea/gitea
match := scpSyntax.FindAllStringSubmatch(refURI, -1)
if len(match) > 0 {
m := match[0]
refHostname := m[2]
path := m[3]
if !strings.HasPrefix(path, "/") {
path = "/" + path
}
if urlPrefixHostname == refHostname {
return prefixURL.Scheme + "://" + urlPrefixHostname + path
}
return "http://" + refHostname + path
}
}
ref, err := url.Parse(refURI)
if err != nil {
return ""
}
refHostname, _, err := net.SplitHostPort(ref.Host)
if err != nil {
refHostname = ref.Host
}
supportedSchemes := []string{"http", "https", "git", "ssh", "git+ssh"}
for _, scheme := range supportedSchemes {
if ref.Scheme == scheme {
if urlPrefixHostname == refHostname {
return prefixURL.Scheme + "://" + prefixURL.Host + ref.Path
} else if ref.Scheme == "http" || ref.Scheme == "https" {
if len(ref.User.Username()) > 0 {
return ref.Scheme + "://" + fmt.Sprintf("%v", ref.User) + "@" + ref.Host + ref.Path
}
return ref.Scheme + "://" + ref.Host + ref.Path
} else {
return "http://" + refHostname + ref.Path
}
}
}
return ""
}
// RefURL guesses and returns reference URL.
func (sf *SubModuleFile) RefURL(urlPrefix string, parentPath string) string {
return getRefURL(sf.refURL, urlPrefix, parentPath)
}
// RefID returns reference ID.
func (sf *SubModuleFile) RefID() string {
return sf.refID
}
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