Split up Context (#873)

Reviewed-on: https://gitea.com/gitea/tea/pulls/873
Co-authored-by: techknowlogick <techknowlogick@gitea.com>
Co-committed-by: techknowlogick <techknowlogick@gitea.com>

modules/context/context_remote.go

@@ -0,0 +1,58 @@
+// Copyright 2026 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package context
+
+import (
+	"fmt"
+	"strings"
+
+	"code.gitea.io/tea/modules/config"
+	"code.gitea.io/tea/modules/debug"
+	"code.gitea.io/tea/modules/git"
+)
+
+// MatchLogins matches the given remoteURL against the provided logins and returns
+// the first matching login
+// remoteURL could be like:
+//
+//	https://gitea.com/owner/repo.git
+//	http://gitea.com/owner/repo.git
+//	ssh://gitea.com/owner/repo.git
+//	git@gitea.com:owner/repo.git
+func MatchLogins(remoteURL string, logins []config.Login) (*config.Login, string, error) {
+	for _, l := range logins {
+		debug.Printf("Matching remote URL '%s' against %v login", remoteURL, l)
+		sshHost := l.GetSSHHost()
+		atIdx := strings.Index(remoteURL, "@")
+		colonIdx := strings.Index(remoteURL, ":")
+		if atIdx > 0 && colonIdx > atIdx {
+			domain := remoteURL[atIdx+1 : colonIdx]
+			if domain == sshHost {
+				return &l, strings.TrimSuffix(remoteURL[colonIdx+1:], ".git"), nil
+			}
+		} else {
+			p, err := git.ParseURL(remoteURL)
+			if err != nil {
+				return nil, "", fmt.Errorf("git remote URL parse failed: %s", err.Error())
+			}
+
+			switch {
+			case strings.EqualFold(p.Scheme, "http") || strings.EqualFold(p.Scheme, "https"):
+				if strings.HasPrefix(remoteURL, l.URL) {
+					ps := strings.Split(p.Path, "/")
+					path := strings.Join(ps[len(ps)-2:], "/")
+					return &l, strings.TrimSuffix(path, ".git"), nil
+				}
+			case strings.EqualFold(p.Scheme, "ssh"):
+				if sshHost == p.Host || sshHost == p.Hostname() {
+					return &l, strings.TrimLeft(p.Path, "/"), nil
+				}
+			default:
+				// unknown scheme
+				return nil, "", fmt.Errorf("git remote URL parse failed: %s", "unknown scheme "+p.Scheme)
+			}
+		}
+	}
+	return nil, "", errNotAGiteaRepo
+}