gitea/modules/git/submodule.go

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// Copyright 2019 The Gitea Authors. All rights reserved.
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// 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"
"path"
"regexp"
"strings"
)
var scpSyntax = regexp.MustCompile(`^([a-zA-Z0-9_]+@)?([a-zA-Z0-9._-]+):(.*)$`)
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// SubModule submodule is a reference on git repository
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type SubModule struct {
Name string
URL string
}
// SubModuleFile represents a file with submodule type.
type SubModuleFile struct {
*Commit
refURL string
refID string
}
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// NewSubModuleFile create a new submodule file
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func NewSubModuleFile(c *Commit, refURL, refID string) *SubModuleFile {
return &SubModuleFile{
Commit: c,
refURL: refURL,
refID: refID,
}
}
func getRefURL(refURL, urlPrefix, repoFullName, sshDomain string) string {
if refURL == "" {
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return ""
}
refURI := strings.TrimSuffix(refURL, ".git")
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prefixURL, _ := url.Parse(urlPrefix)
urlPrefixHostname, _, err := net.SplitHostPort(prefixURL.Host)
if err != nil {
urlPrefixHostname = prefixURL.Host
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}
urlPrefix = strings.TrimSuffix(urlPrefix, "/")
// FIXME: Need to consider branch - which will require changes in modules/git/commit.go:GetSubModules
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// Relative url prefix check (according to git submodule documentation)
if strings.HasPrefix(refURI, "./") || strings.HasPrefix(refURI, "../") {
return urlPrefix + path.Clean(path.Join("/", repoFullName, refURI))
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}
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 {
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m := match[0]
refHostname := m[2]
pth := m[3]
if !strings.HasPrefix(pth, "/") {
pth = "/" + pth
}
if urlPrefixHostname == refHostname || refHostname == sshDomain {
return urlPrefix + path.Clean(path.Join("/", pth))
}
return "http://" + refHostname + pth
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}
}
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 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 if urlPrefixHostname == refHostname || refHostname == sshDomain {
return urlPrefix + path.Clean(path.Join("/", ref.Path))
} else {
return "http://" + refHostname + ref.Path
}
}
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}
return ""
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}
// RefURL guesses and returns reference URL.
func (sf *SubModuleFile) RefURL(urlPrefix, repoFullName, sshDomain string) string {
return getRefURL(sf.refURL, urlPrefix, repoFullName, sshDomain)
}
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// RefID returns reference ID.
func (sf *SubModuleFile) RefID() string {
return sf.refID
}