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// Copyright 2021 The Gitea 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 lfs
import (
"fmt"
"net/url"
"os"
"path"
"path/filepath"
"strings"
"code.gitea.io/gitea/modules/log"
)
// DetermineEndpoint determines an endpoint from the clone url or uses the specified LFS url.
func DetermineEndpoint(cloneurl, lfsurl string) *url.URL {
if len(lfsurl) > 0 {
return endpointFromURL(lfsurl)
}
return endpointFromCloneURL(cloneurl)
}
func endpointFromCloneURL(rawurl string) *url.URL {
ep := endpointFromURL(rawurl)
if ep == nil {
return ep
}
ep.Path = strings.TrimSuffix(ep.Path, "/")
if ep.Scheme == "file" {
return ep
}
if path.Ext(ep.Path) == ".git" {
ep.Path += "/info/lfs"
} else {
ep.Path += ".git/info/lfs"
}
return ep
}
func endpointFromURL(rawurl string) *url.URL {
if strings.HasPrefix(rawurl, "/") {
return endpointFromLocalPath(rawurl)
}
u, err := url.Parse(rawurl)
if err != nil {
log.Error("lfs.endpointFromUrl: %v", err)
return nil
}
switch u.Scheme {
case "http", "https":
return u
case "git":
u.Scheme = "https"
return u
case "file":
return u
default:
if _, err := os.Stat(rawurl); err == nil {
return endpointFromLocalPath(rawurl)
}
log.Error("lfs.endpointFromUrl: unknown url")
return nil
}
}
func endpointFromLocalPath(path string) *url.URL {
var slash string
if abs, err := filepath.Abs(path); err == nil {
if !strings.HasPrefix(abs, "/") {
slash = "/"
}
path = abs
}
var gitpath string
if filepath.Base(path) == ".git" {
gitpath = path
path = filepath.Dir(path)
} else {
gitpath = filepath.Join(path, ".git")
}
if _, err := os.Stat(gitpath); err == nil {
path = gitpath
} else if _, err := os.Stat(path); err != nil {
return nil
}
path = fmt.Sprintf("file://%s%s", slash, filepath.ToSlash(path))
u, _ := url.Parse(path)
return u
}
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