1 files changed, 95 insertions, 0 deletions
diff --git a/models/git/protected_branch_list.go b/models/git/protected_branch_list.go
new file mode 100644
index 0000000..613333a
--- /dev/null
+++ b/models/git/protected_branch_list.go
@@ -0,0 +1,95 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package git
+
+import (
+	"context"
+	"sort"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/optional"
+
+	"github.com/gobwas/glob"
+)
+
+type ProtectedBranchRules []*ProtectedBranch
+
+func (rules ProtectedBranchRules) GetFirstMatched(branchName string) *ProtectedBranch {
+	for _, rule := range rules {
+		if rule.Match(branchName) {
+			return rule
+		}
+	}
+	return nil
+}
+
+func (rules ProtectedBranchRules) sort() {
+	sort.Slice(rules, func(i, j int) bool {
+		rules[i].loadGlob()
+		rules[j].loadGlob()
+		if rules[i].isPlainName != rules[j].isPlainName {
+			return rules[i].isPlainName // plain name comes first, so plain name means "less"
+		}
+		return rules[i].CreatedUnix < rules[j].CreatedUnix
+	})
+}
+
+// FindRepoProtectedBranchRules load all repository's protected rules
+func FindRepoProtectedBranchRules(ctx context.Context, repoID int64) (ProtectedBranchRules, error) {
+	var rules ProtectedBranchRules
+	err := db.GetEngine(ctx).Where("repo_id = ?", repoID).Asc("created_unix").Find(&rules)
+	if err != nil {
+		return nil, err
+	}
+	rules.sort() // to make non-glob rules have higher priority, and for same glob/non-glob rules, first created rules have higher priority
+	return rules, nil
+}
+
+// FindAllMatchedBranches find all matched branches
+func FindAllMatchedBranches(ctx context.Context, repoID int64, ruleName string) ([]string, error) {
+	results := make([]string, 0, 10)
+	for page := 1; ; page++ {
+		brancheNames, err := FindBranchNames(ctx, FindBranchOptions{
+			ListOptions: db.ListOptions{
+				PageSize: 100,
+				Page:     page,
+			},
+			RepoID:          repoID,
+			IsDeletedBranch: optional.Some(false),
+		})
+		if err != nil {
+			return nil, err
+		}
+		rule := glob.MustCompile(ruleName)
+
+		for _, branch := range brancheNames {
+			if rule.Match(branch) {
+				results = append(results, branch)
+			}
+		}
+		if len(brancheNames) < 100 {
+			break
+		}
+	}
+
+	return results, nil
+}
+
+// GetFirstMatchProtectedBranchRule returns the first matched rules
+func GetFirstMatchProtectedBranchRule(ctx context.Context, repoID int64, branchName string) (*ProtectedBranch, error) {
+	rules, err := FindRepoProtectedBranchRules(ctx, repoID)
+	if err != nil {
+		return nil, err
+	}
+	return rules.GetFirstMatched(branchName), nil
+}
+
+// IsBranchProtected checks if branch is protected
+func IsBranchProtected(ctx context.Context, repoID int64, branchName string) (bool, error) {
+	rule, err := GetFirstMatchProtectedBranchRule(ctx, repoID, branchName)
+	if err != nil {
+		return false, err
+	}
+	return rule != nil, nil
+}