Optimize branch protection rule loading (#32280)

before if it was nonglob each load would try to glob it and the check
that is not glob ... now we only do that once and no future loading will
trigger it

---
*Sponsored by Kithara Software GmbH*

(cherry picked from commit 5d43801b72790ce5862aefdc4520edb06bb4cbba)

models/git/protected_branch.go

@@ -79,15 +79,21 @@ func IsRuleNameSpecial(ruleName string) bool {
 }
 
 func (protectBranch *ProtectedBranch) loadGlob() {
-	if protectBranch.globRule == nil {
+	if protectBranch.isPlainName || protectBranch.globRule != nil {
+		return
+	}
+	// detect if it is not glob
+	if !IsRuleNameSpecial(protectBranch.RuleName) {
+		protectBranch.isPlainName = true
+		return
+	}
+	// now we load the glob
 	var err error
 	protectBranch.globRule, err = glob.Compile(protectBranch.RuleName, '/')
 	if err != nil {
 		log.Warn("Invalid glob rule for ProtectedBranch[%d]: %s %v", protectBranch.ID, protectBranch.RuleName, err)
 		protectBranch.globRule = glob.MustCompile(glob.QuoteMeta(protectBranch.RuleName), '/')
 	}
-		protectBranch.isPlainName = !IsRuleNameSpecial(protectBranch.RuleName)
-	}
 }
 
 // Match tests if branchName matches the rule

models/git/protected_branch_list_test.go

@@ -75,3 +75,32 @@ func TestBranchRuleMatchPriority(t *testing.T) {
 		}
 	}
 }
+
+func TestBranchRuleSort(t *testing.T) {
+	in := []*ProtectedBranch{{
+		RuleName:    "b",
+		CreatedUnix: 1,
+	}, {
+		RuleName:    "b/*",
+		CreatedUnix: 3,
+	}, {
+		RuleName:    "a/*",
+		CreatedUnix: 2,
+	}, {
+		RuleName:    "c",
+		CreatedUnix: 0,
+	}, {
+		RuleName:    "a",
+		CreatedUnix: 4,
+	}}
+	expect := []string{"c", "b", "a", "a/*", "b/*"}
+
+	pbr := ProtectedBranchRules(in)
+	pbr.sort()
+
+	var got []string
+	for i := range pbr {
+		got = append(got, pbr[i].RuleName)
+	}
+	assert.Equal(t, expect, got)
+}