Sync branches into databases (#22743)

Related #14180
Related #25233 
Related #22639
Close #19786
Related #12763 

This PR will change all the branches retrieve method from reading git
data to read database to reduce git read operations.

- [x] Sync git branches information into database when push git data
- [x] Create a new table `Branch`, merge some columns of `DeletedBranch`
into `Branch` table and drop the table `DeletedBranch`.
- [x] Read `Branch` table when visit `code` -> `branch` page
- [x] Read `Branch` table when list branch names in `code` page dropdown
- [x] Read `Branch` table when list git ref compare page
- [x] Provide a button in admin page to manually sync all branches.
- [x] Sync branches if repository is not empty but database branches are
empty when visiting pages with branches list
- [x] Use `commit_time desc` as the default FindBranch order by to keep
consistent as before and deleted branches will be always at the end.

---------

Co-authored-by: Jason Song <i@wolfogre.com>

models/git/protected_branch_list.go

@@ -8,7 +8,7 @@ import (
 	"sort"
 
 	"code.gitea.io/gitea/models/db"
-	"code.gitea.io/gitea/modules/git"
+	"code.gitea.io/gitea/modules/util"
 
 	"github.com/gobwas/glob"
 )
@@ -47,19 +47,32 @@ func FindRepoProtectedBranchRules(ctx context.Context, repoID int64) (ProtectedB
 }
 
 // FindAllMatchedBranches find all matched branches
-func FindAllMatchedBranches(ctx context.Context, gitRepo *git.Repository, ruleName string) ([]string, error) {
-	// FIXME: how many should we get?
-	branches, _, err := gitRepo.GetBranchNames(0, 9999999)
-	if err != nil {
-		return nil, err
-	}
-	rule := glob.MustCompile(ruleName)
-	results := make([]string, 0, len(branches))
-	for _, branch := range branches {
-		if rule.Match(branch) {
-			results = append(results, branch)
+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: util.OptionalBoolFalse,
+		})
+		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
 }