feat: update gitea vendor

package/gitea/source/models/gituser/avatar_stack.go

@@ -0,0 +1,52 @@
+// Copyright 2026 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package gituser
+
+import (
+	"context"
+
+	"gitea.dev/models/user"
+	"gitea.dev/modules/container"
+	"gitea.dev/modules/git"
+	"gitea.dev/modules/log"
+)
+
+// AvatarStackData is the view-model for the AvatarStack render helpers. Participants[0] is
+// the primary participant (commit author), painted on top; the rest follow.
+type AvatarStackData struct {
+	Participants      []*CommitParticipant
+	SearchByEmailLink string
+}
+
+func BuildAvatarStackData(ctx context.Context, allParticipants []*git.CommitIdentity, emailUserMap *user.EmailUserMap) *AvatarStackData {
+	if emailUserMap == nil {
+		emails := make([]string, len(allParticipants))
+		for i, sig := range allParticipants {
+			emails[i] = sig.Email
+		}
+		var err error
+		emailUserMap, err = user.GetUsersByEmails(ctx, emails)
+		if err != nil {
+			log.Error("GetUsersByEmails failed: %v", err)
+		}
+	}
+	ret := &AvatarStackData{
+		Participants: make([]*CommitParticipant, 0, len(allParticipants)),
+	}
+	uniqueUserIDs := make(container.Set[int64])
+	for _, p := range allParticipants {
+		var giteaUser *user.User
+		if emailUserMap != nil {
+			giteaUser = emailUserMap.GetByEmail(p.Email)
+		}
+		if giteaUser != nil {
+			// identities without a Gitea account can only be compared by their git identity
+			if !uniqueUserIDs.Add(giteaUser.ID) {
+				continue
+			}
+		}
+		ret.Participants = append(ret.Participants, &CommitParticipant{GiteaUser: giteaUser, GitIdentity: p})
+	}
+	return ret
+}

package/gitea/source/models/gituser/gituser.go

@@ -0,0 +1,63 @@
+// Copyright 2026 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package gituser
+
+import (
+	"context"
+	"net/url"
+
+	"gitea.dev/models/user"
+	"gitea.dev/modules/container"
+	"gitea.dev/modules/git"
+)
+
+// CommitParticipant is one participant of a commit (its author or a co-author):
+// a git identity, optionally matched to a Gitea user.
+type CommitParticipant struct {
+	GitIdentity *git.CommitIdentity // git identity (name/email), never nil
+	GiteaUser   *user.User          // matched Gitea user, nil if unmatched
+}
+
+// UserCommit represents a commit with matched of database "author" user.
+type UserCommit struct {
+	GitCommit       *git.Commit
+	AuthorUser      *user.User
+	AvatarStackData *AvatarStackData
+}
+
+func RepoCommitSearchByEmailLink(repoLink string, ref git.RefName) string {
+	if curRefWebLinkPath := ref.RefWebLinkPath(); curRefWebLinkPath != "" {
+		return repoLink + "/commits/" + curRefWebLinkPath + "/search?q=" + url.QueryEscape("author:") + "{email}"
+	}
+	return ""
+}
+
+// GetUserCommitsByGitCommits checks if authors' e-mails of commits are corresponding to users.
+func GetUserCommitsByGitCommits(ctx context.Context, gitCommits []*git.Commit, repoLink string, currentRef git.RefName) ([]*UserCommit, error) {
+	userCommits := make([]*UserCommit, 0, len(gitCommits))
+	emailSet := make(container.Set[string])
+	for _, c := range gitCommits {
+		emailSet.Add(c.Author.Email)
+		for _, p := range c.AllAuthorIdentities() {
+			emailSet.Add(p.Email)
+		}
+	}
+
+	emailUserMap, err := user.GetUsersByEmails(ctx, emailSet.Values())
+	if err != nil {
+		return nil, err
+	}
+
+	searchByEmailLink := RepoCommitSearchByEmailLink(repoLink, currentRef)
+	for _, c := range gitCommits {
+		uc := &UserCommit{
+			AuthorUser:      emailUserMap.GetByEmail(c.Author.Email), // FIXME: why GetUserCommitsByGitCommits uses "Author", but ParseCommitsWithSignature uses "Committer"?
+			GitCommit:       c,
+			AvatarStackData: BuildAvatarStackData(ctx, c.AllAuthorIdentities(), emailUserMap),
+		}
+		uc.AvatarStackData.SearchByEmailLink = searchByEmailLink
+		userCommits = append(userCommits, uc)
+	}
+	return userCommits, nil
+}