Add print linter

.gitignore

@@ -41,9 +41,11 @@ luac.out
 
 .release/*
 !.release/local.sh
+!.release/local
 
 .scripts/.output
 
 .venv
+__pycache__
 
 luacov-html

.release/local.sh

@@ -1486,7 +1486,7 @@ if [ -n "$project_version" ]; then
 fi
 if [ -n "$previous_version" ]; then
 	echo -n "  Previous version: "
-	print_red: "$previous_version"
+	print_red "$previous_version"
 fi
 (
 	if [[ -n $game_type ]]; then

.scripts/check_for_invalid_prints.py

@@ -0,0 +1,81 @@
+import json
+import re
+import sys
+
+
+def check_print_statements(file_path):
+    violations = []
+
+    with open(file_path, "r") as file:
+        lines = file.readlines()
+
+    for line_number, line in enumerate(lines, start=1):
+        match = re.search(r"\bprint\b", line)
+        if match:
+            column_number = match.start() + 1
+            if not re.search(r"\bself:Print\b|\bG_RLF:Print\b", line):
+                violations.append(
+                    {
+                        "ruleId": "invalid-print",
+                        "message": {
+                            "text": f"Invalid `print`, use `self:Print(...)` or `G_RLF:Print(...)`"
+                        },
+                        "locations": [
+                            {
+                                "physicalLocation": {
+                                    "artifactLocation": {"uri": file_path},
+                                    "region": {
+                                        "startLine": line_number,
+                                        "startColumn": column_number,
+                                    },
+                                }
+                            }
+                        ],
+                    }
+                )
+
+    return violations
+
+
+def generate_sarif(violations):
+    sarif_output = {
+        "version": "2.1.0",
+        "runs": [
+            {
+                "tool": {
+                    "driver": {
+                        "name": "Invalid Print",
+                        "rules": [
+                            {
+                                "id": "invalid-print",
+                                "shortDescription": {
+                                    "text": "Disallowed `print` statements"
+                                },
+                                "fullDescription": {
+                                    "text": "Lua files should not contain `print` statements that are not `self:Print(...)` or `G_RLF:Print(...)`."
+                                },
+                            }
+                        ],
+                    }
+                },
+                "results": violations,
+            }
+        ],
+    }
+    return sarif_output
+
+
+def main():
+    if len(sys.argv) != 2:
+        print("Usage: check_for_invalid_prints.py <file_path>")
+        sys.exit(1)
+
+    file_path = sys.argv[1]
+    violations = check_print_statements(file_path)
+    sarif_output = generate_sarif(violations)
+
+    print(json.dumps(sarif_output, indent=2))
+
+
+if __name__ == "__main__":
+    main()

.trunk/trunk.yaml

@@ -37,6 +37,16 @@ lint:
     - [email protected]
     - [email protected]
     - [email protected]
+    - no-invalid-prints
+  definitions:
+    - name: no-invalid-prints
+      files: [lua]
+      runtime: python
+      commands:
+        - name: lint
+          output: sarif
+          run: python3 ${workspace}/.scripts/check_for_invalid_prints.py ${target}
+          success_codes: [0, 1]
 actions:
   enabled:
     - trunk-announce