feat: add copilot_code_review rule support to repository rulesets

Add support for GitHub's Copilot code review feature in repository
rulesets, allowing automatic code review requests for pull requests.

Changes:
- Add RulesetRuleTypeCopilotCodeReview constant to rule types
- Add CopilotCodeReviewRuleParameters struct with review_new_pushes
  and review_draft_pull_requests fields
- Implement marshal/unmarshal logic for copilot_code_review rules
- Add comprehensive test coverage for the new rule type

The copilot_code_review rule supports two configuration options:
- review_new_pushes: Automatically review each new push to the PR
- review_draft_pull_requests: Automatically review draft PRs

Author: JiayangZhou

github/rules.go

@@ -87,6 +87,7 @@ const (
 	RulesetRuleTypeTagNamePattern           RepositoryRuleType = "tag_name_pattern"
 	RulesetRuleTypeUpdate                   RepositoryRuleType = "update"
 	RulesetRuleTypeWorkflows                RepositoryRuleType = "workflows"
+	RulesetRuleTypeCopilotCodeReview        RepositoryRuleType = "copilot_code_review"
 
 	// Push target rules.
 	RulesetRuleTypeFileExtensionRestriction RepositoryRuleType = "file_extension_restriction"
@@ -306,6 +307,7 @@ type RepositoryRulesetRules struct {
 	TagNamePattern           *PatternRuleParameters
 	Workflows                *WorkflowsRuleParameters
 	CodeScanning             *CodeScanningRuleParameters
+	CopilotCodeReview        *CopilotCodeReviewRuleParameters
 
 	// Push target rules.
 	FileExtensionRestriction *FileExtensionRestrictionRuleParameters
@@ -539,6 +541,12 @@ type CodeScanningRuleParameters struct {
 	CodeScanningTools []*RuleCodeScanningTool `json:"code_scanning_tools"`
 }
 
+// CopilotCodeReviewRuleParameters represents the copilot_code_review rule parameters.
+type CopilotCodeReviewRuleParameters struct {
+	ReviewNewPushes         bool `json:"review_new_pushes"`
+	ReviewDraftPullRequests bool `json:"review_draft_pull_requests"`
+}
+
 // RuleCodeScanningTool represents a single code scanning tool for the code scanning parameters.
 type RuleCodeScanningTool struct {
 	AlertsThreshold         CodeScanningAlertsThreshold         `json:"alerts_threshold"`
@@ -566,9 +574,9 @@ type repositoryRulesetRuleWrapper struct {
 
 // MarshalJSON is a custom JSON marshaler for RulesetRules.
 func (r *RepositoryRulesetRules) MarshalJSON() ([]byte, error) {
-	// The RepositoryRulesetRules type marshals to between 1 and 21 rules.
+	// The RepositoryRulesetRules type marshals to between 1 and 22 rules.
 	// If new rules are added to RepositoryRulesetRules the capacity below needs increasing
-	rawRules := make([]json.RawMessage, 0, 21)
+	rawRules := make([]json.RawMessage, 0, 22)
 
 	if r.Creation != nil {
 		bytes, err := marshalRepositoryRulesetRule(RulesetRuleTypeCreation, r.Creation)
@@ -738,6 +746,14 @@ func (r *RepositoryRulesetRules) MarshalJSON() ([]byte, error) {
 		rawRules = append(rawRules, json.RawMessage(bytes))
 	}
 
+	if r.CopilotCodeReview != nil {
+		bytes, err := marshalRepositoryRulesetRule(RulesetRuleTypeCopilotCodeReview, r.CopilotCodeReview)
+		if err != nil {
+			return nil, err
+		}
+		rawRules = append(rawRules, json.RawMessage(bytes))
+	}
+
 	if r.RepositoryCreate != nil {
 		bytes, err := marshalRepositoryRulesetRule(RulesetRuleTypeRepositoryCreate, r.RepositoryCreate)
 		if err != nil {
@@ -965,6 +981,14 @@ func (r *RepositoryRulesetRules) UnmarshalJSON(data []byte) error {
 					return err
 				}
 			}
+		case RulesetRuleTypeCopilotCodeReview:
+			r.CopilotCodeReview = &CopilotCodeReviewRuleParameters{}
+
+			if w.Parameters != nil {
+				if err := json.Unmarshal(w.Parameters, r.CopilotCodeReview); err != nil {
+					return err
+				}
+			}
 		case RulesetRuleTypeRepositoryCreate:
 			r.RepositoryCreate = &EmptyRuleParameters{}
 		case RulesetRuleTypeRepositoryDelete:

github/rules_test.go

@@ -122,13 +122,17 @@ func TestRulesetRules(t *testing.T) {
 						},
 					},
 				},
+				CopilotCodeReview: &CopilotCodeReviewRuleParameters{
+					ReviewNewPushes:         true,
+					ReviewDraftPullRequests: false,
+				},
 				RepositoryCreate:     &EmptyRuleParameters{},
 				RepositoryDelete:     &EmptyRuleParameters{},
 				RepositoryName:       &SimplePatternRuleParameters{Pattern: "^test-.+", Negate: false},
 				RepositoryTransfer:   &EmptyRuleParameters{},
 				RepositoryVisibility: &RepositoryVisibilityRuleParameters{Internal: false, Private: false},
 			},
-			`[{"type":"creation"},{"type":"update"},{"type":"deletion"},{"type":"required_linear_history"},{"type":"merge_queue","parameters":{"check_response_timeout_minutes":5,"grouping_strategy":"ALLGREEN","max_entries_to_build":10,"max_entries_to_merge":20,"merge_method":"SQUASH","min_entries_to_merge":1,"min_entries_to_merge_wait_minutes":15}},{"type":"required_deployments","parameters":{"required_deployment_environments":["test1","test2"]}},{"type":"required_signatures"},{"type":"pull_request","parameters":{"allowed_merge_methods":["squash","rebase"],"dismiss_stale_reviews_on_push":true,"require_code_owner_review":true,"require_last_push_approval":true,"required_approving_review_count":2,"required_review_thread_resolution":true}},{"type":"required_status_checks","parameters":{"required_status_checks":[{"context":"test1"},{"context":"test2"}],"strict_required_status_checks_policy":true}},{"type":"non_fast_forward"},{"type":"commit_message_pattern","parameters":{"operator":"starts_with","pattern":"test"}},{"type":"commit_author_email_pattern","parameters":{"operator":"starts_with","pattern":"test"}},{"type":"committer_email_pattern","parameters":{"operator":"starts_with","pattern":"test"}},{"type":"branch_name_pattern","parameters":{"operator":"starts_with","pattern":"test"}},{"type":"tag_name_pattern","parameters":{"operator":"starts_with","pattern":"test"}},{"type":"file_path_restriction","parameters":{"restricted_file_paths":["test1","test2"]}},{"type":"max_file_path_length","parameters":{"max_file_path_length":512}},{"type":"file_extension_restriction","parameters":{"restricted_file_extensions":[".exe",".pkg"]}},{"type":"max_file_size","parameters":{"max_file_size":1024}},{"type":"workflows","parameters":{"workflows":[{"path":".github/workflows/test1.yaml"},{"path":".github/workflows/test2.yaml"}]}},{"type":"code_scanning","parameters":{"code_scanning_tools":[{"alerts_threshold":"all","security_alerts_threshold":"all","tool":"test"},{"alerts_threshold":"none","security_alerts_threshold":"none","tool":"test"}]}},{"type":"repository_create"},{"type":"repository_delete"},{"type":"repository_name","parameters":{"negate":false,"pattern":"^test-.+"}},{"type":"repository_transfer"},{"type":"repository_visibility","parameters":{"internal":false,"private":false}}]`,
+			`[{"type":"creation"},{"type":"update"},{"type":"deletion"},{"type":"required_linear_history"},{"type":"merge_queue","parameters":{"check_response_timeout_minutes":5,"grouping_strategy":"ALLGREEN","max_entries_to_build":10,"max_entries_to_merge":20,"merge_method":"SQUASH","min_entries_to_merge":1,"min_entries_to_merge_wait_minutes":15}},{"type":"required_deployments","parameters":{"required_deployment_environments":["test1","test2"]}},{"type":"required_signatures"},{"type":"pull_request","parameters":{"allowed_merge_methods":["squash","rebase"],"dismiss_stale_reviews_on_push":true,"require_code_owner_review":true,"require_last_push_approval":true,"required_approving_review_count":2,"required_review_thread_resolution":true}},{"type":"required_status_checks","parameters":{"required_status_checks":[{"context":"test1"},{"context":"test2"}],"strict_required_status_checks_policy":true}},{"type":"non_fast_forward"},{"type":"commit_message_pattern","parameters":{"operator":"starts_with","pattern":"test"}},{"type":"commit_author_email_pattern","parameters":{"operator":"starts_with","pattern":"test"}},{"type":"committer_email_pattern","parameters":{"operator":"starts_with","pattern":"test"}},{"type":"branch_name_pattern","parameters":{"operator":"starts_with","pattern":"test"}},{"type":"tag_name_pattern","parameters":{"operator":"starts_with","pattern":"test"}},{"type":"file_path_restriction","parameters":{"restricted_file_paths":["test1","test2"]}},{"type":"max_file_path_length","parameters":{"max_file_path_length":512}},{"type":"file_extension_restriction","parameters":{"restricted_file_extensions":[".exe",".pkg"]}},{"type":"max_file_size","parameters":{"max_file_size":1024}},{"type":"workflows","parameters":{"workflows":[{"path":".github/workflows/test1.yaml"},{"path":".github/workflows/test2.yaml"}]}},{"type":"code_scanning","parameters":{"code_scanning_tools":[{"alerts_threshold":"all","security_alerts_threshold":"all","tool":"test"},{"alerts_threshold":"none","security_alerts_threshold":"none","tool":"test"}]}},{"type":"copilot_code_review","parameters":{"review_new_pushes":true,"review_draft_pull_requests":false}},{"type":"repository_create"},{"type":"repository_delete"},{"type":"repository_name","parameters":{"negate":false,"pattern":"^test-.+"}},{"type":"repository_transfer"},{"type":"repository_visibility","parameters":{"internal":false,"private":false}}]`,
 		},
 		{
 			"all_rules_with_all_params",
@@ -240,13 +244,17 @@ func TestRulesetRules(t *testing.T) {
 						},
 					},
 				},
+				CopilotCodeReview: &CopilotCodeReviewRuleParameters{
+					ReviewNewPushes:         true,
+					ReviewDraftPullRequests: false,
+				},
 				RepositoryCreate:     &EmptyRuleParameters{},
 				RepositoryDelete:     &EmptyRuleParameters{},
 				RepositoryName:       &SimplePatternRuleParameters{Pattern: "^test-.+", Negate: false},
 				RepositoryTransfer:   &EmptyRuleParameters{},
 				RepositoryVisibility: &RepositoryVisibilityRuleParameters{Internal: false, Private: false},
 			},
-			`[{"type":"creation"},{"type":"update","parameters":{"update_allows_fetch_and_merge":true}},{"type":"deletion"},{"type":"required_linear_history"},{"type":"merge_queue","parameters":{"check_response_timeout_minutes":5,"grouping_strategy":"ALLGREEN","max_entries_to_build":10,"max_entries_to_merge":20,"merge_method":"SQUASH","min_entries_to_merge":1,"min_entries_to_merge_wait_minutes":15}},{"type":"required_deployments","parameters":{"required_deployment_environments":["test1","test2"]}},{"type":"required_signatures"},{"type":"pull_request","parameters":{"allowed_merge_methods":["squash","rebase"],"automatic_copilot_code_review_enabled":false,"dismiss_stale_reviews_on_push":true,"require_code_owner_review":true,"require_last_push_approval":true,"required_approving_review_count":2,"required_review_thread_resolution":true}},{"type":"required_status_checks","parameters":{"do_not_enforce_on_create":true,"required_status_checks":[{"context":"test1","integration_id":1},{"context":"test2","integration_id":2}],"strict_required_status_checks_policy":true}},{"type":"non_fast_forward"},{"type":"commit_message_pattern","parameters":{"name":"cmp","negate":false,"operator":"starts_with","pattern":"test"}},{"type":"commit_author_email_pattern","parameters":{"name":"caep","negate":false,"operator":"starts_with","pattern":"test"}},{"type":"committer_email_pattern","parameters":{"name":"cep","negate":false,"operator":"starts_with","pattern":"test"}},{"type":"branch_name_pattern","parameters":{"name":"bp","negate":false,"operator":"starts_with","pattern":"test"}},{"type":"tag_name_pattern","parameters":{"name":"tp","negate":false,"operator":"starts_with","pattern":"test"}},{"type":"file_path_restriction","parameters":{"restricted_file_paths":["test1","test2"]}},{"type":"max_file_path_length","parameters":{"max_file_path_length":512}},{"type":"file_extension_restriction","parameters":{"restricted_file_extensions":[".exe",".pkg"]}},{"type":"max_file_size","parameters":{"max_file_size":1024}},{"type":"workflows","parameters":{"do_not_enforce_on_create":true,"workflows":[{"path":".github/workflows/test1.yaml","ref":"main","repository_id":1,"sha":"aaaa"},{"path":".github/workflows/test2.yaml","ref":"main","repository_id":2,"sha":"bbbb"}]}},{"type":"code_scanning","parameters":{"code_scanning_tools":[{"alerts_threshold":"all","security_alerts_threshold":"all","tool":"test"},{"alerts_threshold":"none","security_alerts_threshold":"none","tool":"test"}]}},{"type":"repository_create"},{"type":"repository_delete"},{"type":"repository_name","parameters":{"negate":false,"pattern":"^test-.+"}},{"type":"repository_transfer"},{"type":"repository_visibility","parameters":{"internal":false,"private":false}}]`,
+			`[{"type":"creation"},{"type":"update","parameters":{"update_allows_fetch_and_merge":true}},{"type":"deletion"},{"type":"required_linear_history"},{"type":"merge_queue","parameters":{"check_response_timeout_minutes":5,"grouping_strategy":"ALLGREEN","max_entries_to_build":10,"max_entries_to_merge":20,"merge_method":"SQUASH","min_entries_to_merge":1,"min_entries_to_merge_wait_minutes":15}},{"type":"required_deployments","parameters":{"required_deployment_environments":["test1","test2"]}},{"type":"required_signatures"},{"type":"pull_request","parameters":{"allowed_merge_methods":["squash","rebase"],"automatic_copilot_code_review_enabled":false,"dismiss_stale_reviews_on_push":true,"require_code_owner_review":true,"require_last_push_approval":true,"required_approving_review_count":2,"required_review_thread_resolution":true}},{"type":"required_status_checks","parameters":{"do_not_enforce_on_create":true,"required_status_checks":[{"context":"test1","integration_id":1},{"context":"test2","integration_id":2}],"strict_required_status_checks_policy":true}},{"type":"non_fast_forward"},{"type":"commit_message_pattern","parameters":{"name":"cmp","negate":false,"operator":"starts_with","pattern":"test"}},{"type":"commit_author_email_pattern","parameters":{"name":"caep","negate":false,"operator":"starts_with","pattern":"test"}},{"type":"committer_email_pattern","parameters":{"name":"cep","negate":false,"operator":"starts_with","pattern":"test"}},{"type":"branch_name_pattern","parameters":{"name":"bp","negate":false,"operator":"starts_with","pattern":"test"}},{"type":"tag_name_pattern","parameters":{"name":"tp","negate":false,"operator":"starts_with","pattern":"test"}},{"type":"file_path_restriction","parameters":{"restricted_file_paths":["test1","test2"]}},{"type":"max_file_path_length","parameters":{"max_file_path_length":512}},{"type":"file_extension_restriction","parameters":{"restricted_file_extensions":[".exe",".pkg"]}},{"type":"max_file_size","parameters":{"max_file_size":1024}},{"type":"workflows","parameters":{"do_not_enforce_on_create":true,"workflows":[{"path":".github/workflows/test1.yaml","ref":"main","repository_id":1,"sha":"aaaa"},{"path":".github/workflows/test2.yaml","ref":"main","repository_id":2,"sha":"bbbb"}]}},{"type":"code_scanning","parameters":{"code_scanning_tools":[{"alerts_threshold":"all","security_alerts_threshold":"all","tool":"test"},{"alerts_threshold":"none","security_alerts_threshold":"none","tool":"test"}]}},{"type":"copilot_code_review","parameters":{"review_new_pushes":true,"review_draft_pull_requests":false}},{"type":"repository_create"},{"type":"repository_delete"},{"type":"repository_name","parameters":{"negate":false,"pattern":"^test-.+"}},{"type":"repository_transfer"},{"type":"repository_visibility","parameters":{"internal":false,"private":false}}]`,
 		},
 	}