feat: Implement missing push rules (#3294)

Fixes: #3274.

Author: srgustafson8

github/repos_rules.go

@@ -85,6 +85,21 @@ type RuleFileParameters struct {
 	RestrictedFilePaths *[]string `json:"restricted_file_paths"`
 }
 
+// RuleMaxFilePathLengthParameters represents the max_file_path_length rule parameters.
+type RuleMaxFilePathLengthParameters struct {
+	MaxFilePathLength int `json:"max_file_path_length"`
+}
+
+// RuleFileExtensionRestrictionParameters represents the file_extension_restriction rule parameters.
+type RuleFileExtensionRestrictionParameters struct {
+	RestrictedFileExtensions []string `json:"restricted_file_extensions"`
+}
+
+// RuleMaxFileSizeParameters represents the max_file_size rule parameters.
+type RuleMaxFileSizeParameters struct {
+	MaxFileSize int64 `json:"max_file_size"`
+}
+
 // UpdateAllowsFetchAndMergeRuleParameters represents the update rule parameters.
 type UpdateAllowsFetchAndMergeRuleParameters struct {
 	UpdateAllowsFetchAndMerge bool `json:"update_allows_fetch_and_merge"`
@@ -255,6 +270,33 @@ func (r *RepositoryRule) UnmarshalJSON(data []byte) error {
 		bytes, _ := json.Marshal(params)
 		rawParams := json.RawMessage(bytes)
 
+		r.Parameters = &rawParams
+	case "max_file_path_length":
+		params := RuleMaxFilePathLengthParameters{}
+		if err := json.Unmarshal(*RepositoryRule.Parameters, &params); err != nil {
+			return err
+		}
+		bytes, _ := json.Marshal(params)
+		rawParams := json.RawMessage(bytes)
+
+		r.Parameters = &rawParams
+	case "file_extension_restriction":
+		params := RuleFileExtensionRestrictionParameters{}
+		if err := json.Unmarshal(*RepositoryRule.Parameters, &params); err != nil {
+			return err
+		}
+		bytes, _ := json.Marshal(params)
+		rawParams := json.RawMessage(bytes)
+
+		r.Parameters = &rawParams
+	case "max_file_size":
+		params := RuleMaxFileSizeParameters{}
+		if err := json.Unmarshal(*RepositoryRule.Parameters, &params); err != nil {
+			return err
+		}
+		bytes, _ := json.Marshal(params)
+		rawParams := json.RawMessage(bytes)
+
 		r.Parameters = &rawParams
 	default:
 		r.Type = ""
@@ -454,6 +496,42 @@ func NewFilePathRestrictionRule(params *RuleFileParameters) (rule *RepositoryRul
 	}
 }
 
+// NewMaxFilePathLengthRule creates a rule to restrict file paths longer than the limit from being pushed.
+func NewMaxFilePathLengthRule(params *RuleMaxFilePathLengthParameters) (rule *RepositoryRule) {
+	bytes, _ := json.Marshal(params)
+
+	rawParams := json.RawMessage(bytes)
+
+	return &RepositoryRule{
+		Type:       "max_file_path_length",
+		Parameters: &rawParams,
+	}
+}
+
+// NewFileExtensionRestrictionRule creates a rule to restrict file extensions from being pushed to a commit.
+func NewFileExtensionRestrictionRule(params *RuleFileExtensionRestrictionParameters) (rule *RepositoryRule) {
+	bytes, _ := json.Marshal(params)
+
+	rawParams := json.RawMessage(bytes)
+
+	return &RepositoryRule{
+		Type:       "file_extension_restriction",
+		Parameters: &rawParams,
+	}
+}
+
+// NewMaxFileSizeRule creates a rule to restrict file sizes from being pushed to a commit.
+func NewMaxFileSizeRule(params *RuleMaxFileSizeParameters) (rule *RepositoryRule) {
+	bytes, _ := json.Marshal(params)
+
+	rawParams := json.RawMessage(bytes)
+
+	return &RepositoryRule{
+		Type:       "max_file_size",
+		Parameters: &rawParams,
+	}
+}
+
 // Ruleset represents a GitHub ruleset object.
 type Ruleset struct {
 	ID   *int64 `json:"id,omitempty"`

github/repos_rules_test.go

@@ -312,6 +312,48 @@ func TestRepositoryRule_UnmarshalJSON(t *testing.T) {
 			},
 			wantErr: true,
 		},
+		"Valid max_file_path_length params": {
+			data: `{"type":"max_file_path_length","parameters":{"max_file_path_length": 255}}`,
+			want: NewMaxFilePathLengthRule(&RuleMaxFilePathLengthParameters{
+				MaxFilePathLength: 255,
+			}),
+		},
+		"Invalid max_file_path_length params": {
+			data: `{"type":"max_file_path_length","parameters":{"max_file_path_length": "255"}}`,
+			want: &RepositoryRule{
+				Type:       "max_file_path_length",
+				Parameters: nil,
+			},
+			wantErr: true,
+		},
+		"Valid file_extension_restriction params": {
+			data: `{"type":"file_extension_restriction","parameters":{"restricted_file_extensions":[".exe"]}}`,
+			want: NewFileExtensionRestrictionRule(&RuleFileExtensionRestrictionParameters{
+				RestrictedFileExtensions: []string{".exe"},
+			}),
+		},
+		"Invalid file_extension_restriction params": {
+			data: `{"type":"file_extension_restriction","parameters":{"restricted_file_extensions":true}}`,
+			want: &RepositoryRule{
+				Type:       "file_extension_restriction",
+				Parameters: nil,
+			},
+			wantErr: true,
+		},
+		"Valid max_file_size params": {
+			data: `{"type":"max_file_size","parameters":{"max_file_size": 1024}}`,
+			want: NewMaxFileSizeRule(&RuleMaxFileSizeParameters{
+				MaxFileSize: 1024,
+			}),
+		},
+		"Invalid max_file_size params": {
+			data: `{"type":"max_file_size","parameters":{"max_file_size": "1024"}}`,
+			want: &RepositoryRule{
+				Type:       "max_file_size",
+				Parameters: nil,
+			},
+			wantErr: true,
+		},
 	}
 
 	for name, tc := range tests {
@@ -539,6 +581,94 @@ func TestRepositoriesService_CreateRuleset(t *testing.T) {
 	})
 }
 
+func TestRepositoriesService_CreateRulesetWithPushRules(t *testing.T) {
+	client, mux, _, teardown := setup()
+	defer teardown()
+
+	mux.HandleFunc("/repos/o/repo/rulesets", func(w http.ResponseWriter, r *http.Request) {
+		testMethod(t, r, "POST")
+		fmt.Fprint(w, `{
+			"id": 42,
+			"name": "ruleset",
+			"source_type": "Repository",
+			"source": "o/repo",
+			"enforcement": "enabled",
+			"target": "push",
+			"rules": [
+				{
+					"type": "file_path_restriction",
+					"parameters": {
+						"restricted_file_paths": ["/a/file"]
+					}
+				},
+				{
+					"type": "max_file_path_length",
+					"parameters": {
+						"max_file_path_length": 255
+					}
+				},
+				{
+					"type": "file_extension_restriction",
+					"parameters": {
+						"restricted_file_extensions": [".exe"]
+					}
+				},
+				{
+					"type": "max_file_size",
+					"parameters": {
+						"max_file_size": 1024
+					}
+				}
+			]
+		}`)
+	})
+
+	ctx := context.Background()
+	ruleSet, _, err := client.Repositories.CreateRuleset(ctx, "o", "repo", &Ruleset{
+		Name:        "ruleset",
+		Enforcement: "enabled",
+	})
+	if err != nil {
+		t.Errorf("Repositories.CreateRuleset returned error: %v", err)
+	}
+
+	want := &Ruleset{
+		ID:          Int64(42),
+		Name:        "ruleset",
+		SourceType:  String("Repository"),
+		Source:      "o/repo",
+		Target:      String("push"),
+		Enforcement: "enabled",
+		Rules: []*RepositoryRule{
+			NewFilePathRestrictionRule(&RuleFileParameters{
+				RestrictedFilePaths: &[]string{"/a/file"},
+			}),
+			NewMaxFilePathLengthRule(&RuleMaxFilePathLengthParameters{
+				MaxFilePathLength: 255,
+			}),
+			NewFileExtensionRestrictionRule(&RuleFileExtensionRestrictionParameters{
+				RestrictedFileExtensions: []string{".exe"},
+			}),
+			NewMaxFileSizeRule(&RuleMaxFileSizeParameters{
+				MaxFileSize: 1024,
+			}),
+		},
+	}
+	if !cmp.Equal(ruleSet, want) {
+		t.Errorf("Repositories.CreateRuleset returned %+v, want %+v", ruleSet, want)
+	}
+
+	const methodName = "CreateRuleset"
+
+	testNewRequestAndDoFailure(t, methodName, client, func() (*Response, error) {
+		got, resp, err := client.Repositories.CreateRuleset(ctx, "o", "repo", &Ruleset{})
+		if got != nil {
+			t.Errorf("testNewRequestAndDoFailure %v = %#v, want nil", methodName, got)
+		}
+		return resp, err
+	})
+}
+
 func TestRepositoriesService_GetRuleset(t *testing.T) {
 	client, mux, _, teardown := setup()
 	defer teardown()