Change Git default branch to main in update_rules tool

cmd/update-rules/main.go

@@ -27,7 +27,7 @@ import (
 	"k8s.io/publishing-bot/cmd/publishing-bot/config"
 )
 
-const GitDefaultBranch = "master"
+const gitDefaultBranch = "main"
 
 type options struct {
 	branch     string
@@ -149,7 +149,7 @@ func UpdateRules(rules *config.RepositoryRules, branch, goVer string, deleteRule
 		// find the mainBranch rules
 		for i := range r.Branches {
 			br := r.Branches[i]
-			if br.Name == GitDefaultBranch {
+			if br.Name == gitDefaultBranch {
 				cloneBranchRule(&br, &newBranchRule)
 				mainBranchRuleFound = true
 				break
@@ -158,7 +158,7 @@ func UpdateRules(rules *config.RepositoryRules, branch, goVer string, deleteRule
 
 		// if mainBranch rules not found for repo, it means it's removed from master tree, log warning and skip updating the rules
 		if !mainBranchRuleFound {
-			glog.Warningf("%s branch rules not found for repo %s, skipping to update branch %s rules", GitDefaultBranch, r.DestinationRepository, branch)
+			glog.Warningf("%s branch rules not found for repo %s, skipping to update branch %s rules", gitDefaultBranch, r.DestinationRepository, branch)
 			continue
 		}
 

cmd/update-rules/main_test.go

@@ -24,7 +24,7 @@ import (
 var (
 	testdataRules        = "testdata/rules.yaml"
 	testdataInvalidRules = "testdata/invalid_rules.yaml"
-	remoteRules          = "https://raw.githubusercontent.com/kubernetes/kubernetes/master/staging/publishing/rules.yaml"
+	remoteRules          = "https://raw.githubusercontent.com/kcp-dev/kcp/main/staging/publishing/rules.yaml"
 )
 
 func TestLoad(t *testing.T) {
@@ -100,8 +100,8 @@ func TestUpdateRules(t *testing.T) {
 			"1.16.1",
 		},
 		{
-			"master branch rule update for go version",
-			"master",
+			"main branch rule update for go version",
+			"main",
 			"1.16.4",
 		},
 	}
@@ -115,51 +115,51 @@ func TestUpdateRules(t *testing.T) {
 			UpdateRules(rules, tt.branch, tt.goVersion, false)
 
 			for _, repoRule := range rules.Rules {
-				var masterRulePresent, branchRulePresent bool
-				var masterRuleIndex, branchRuleIndex int
+				var mainRulePresent, branchRulePresent bool
+				var mainRuleIndex, branchRuleIndex int
 
 				for i, branchRule := range repoRule.Branches {
 					switch branchRule.Name {
-					case "master":
-						masterRulePresent = true
-						masterRuleIndex = i
+					case "main":
+						mainRulePresent = true
+						mainRuleIndex = i
 					case tt.branch:
 						branchRulePresent = true
 						branchRuleIndex = i
 					}
 				}
-				switch masterRulePresent {
+				switch mainRulePresent {
 				case true:
-					if !branchRulePresent && tt.branch != "master" {
+					if !branchRulePresent && tt.branch != "main" {
 						t.Errorf("error updating branch %s rule for repo %s", tt.branch, repoRule.DestinationRepository)
 					}
 				case false:
 					if branchRulePresent {
-						t.Errorf("incorrectly added branch %s rule for repo %s whose master branch rule does not exists", tt.branch, repoRule.DestinationRepository)
+						t.Errorf("incorrectly added branch %s rule for repo %s whose main branch rule does not exists", tt.branch, repoRule.DestinationRepository)
 					}
 				}
 
 				if repoRule.Branches[branchRuleIndex].Source.Branch != tt.branch {
 					t.Errorf("incorrect update to branch %s rule for source branch field for repo %s", tt.branch, repoRule.DestinationRepository)
 				}
 
-				if repoRule.Branches[masterRuleIndex].Source.Dir != repoRule.Branches[branchRuleIndex].Source.Dir {
+				if repoRule.Branches[mainRuleIndex].Source.Dir != repoRule.Branches[branchRuleIndex].Source.Dir {
 					t.Errorf("incorrect update to branch %s rule for source dir field for repo %s", tt.branch, repoRule.DestinationRepository)
 				}
 
 				if repoRule.Branches[branchRuleIndex].GoVersion != tt.goVersion {
 					t.Errorf("incorrect go version set for branch %s rule for repo %s", tt.branch, repoRule.DestinationRepository)
 				}
 
-				if len(repoRule.Branches[masterRuleIndex].Dependencies) != len(repoRule.Branches[branchRuleIndex].Dependencies) {
+				if len(repoRule.Branches[mainRuleIndex].Dependencies) != len(repoRule.Branches[branchRuleIndex].Dependencies) {
 					t.Errorf("incorrect update to branch %s rule dependencies for repo %s", tt.branch, repoRule.DestinationRepository)
 				}
 
-				if len(repoRule.Branches[masterRuleIndex].RequiredPackages) != len(repoRule.Branches[branchRuleIndex].RequiredPackages) {
+				if len(repoRule.Branches[mainRuleIndex].RequiredPackages) != len(repoRule.Branches[branchRuleIndex].RequiredPackages) {
 					t.Errorf("incorrect update to branch %s rule required packages for repo %s", tt.branch, repoRule.DestinationRepository)
 				}
 
-				if repoRule.Branches[masterRuleIndex].SmokeTest != repoRule.Branches[branchRuleIndex].SmokeTest {
+				if repoRule.Branches[mainRuleIndex].SmokeTest != repoRule.Branches[branchRuleIndex].SmokeTest {
 					t.Errorf("incorrect update to branch %s rule smoke-test for repo %s", tt.branch, repoRule.DestinationRepository)
 				}
 			}

cmd/update-rules/testdata/invalid_rules.yaml

@@ -2,9 +2,9 @@ rules:
 - destination: code-generator
   branches:
   - source:
-      branch: master
+      branch: main
       dir: staging/src/k8s.io/code-generator
-    name: master
+    name: main
   - source:
       branch: release-1.19
       dir: staging/src/k8s.io/code-generator