IDEA-CR-53106: add a method to PyInspectionExtension for ignoring PyInterpreterInspection

the method is suitable for ignoring the warning in multi-psi files

(cherry picked from commit 7a73e4ab0b1c26d0e99e66371cf0e35a41b0ccd8)

GitOrigin-RevId: 72ca3d99f71df14f2618c6eed7fb118f1fc54fe6

python/python-psi-api/src/com/jetbrains/python/inspections/PyInspectionExtension.java

@@ -1,4 +1,4 @@
-// Copyright 2000-2017 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
+// Copyright 2000-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.jetbrains.python.inspections;
 
 import com.intellij.openapi.extensions.ExtensionPointName;
@@ -103,4 +103,14 @@ public abstract class PyInspectionExtension {
   public boolean ignoreTrailingSemicolon(@NotNull PyStatement statement) {
     return false;
   }
+
+  /**
+   * Checks whether Python interpreter is required for the python file.
+   *
+   * @param file file being analyzed
+   * @return true if missing Python interpreter should be ignored
+   */
+  public boolean ignoreMissingInterpreter(@NotNull PyFile file) {
+    return false;
+  }
 }

python/src/com/jetbrains/python/inspections/PyInterpreterInspection.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2014 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.jetbrains.python.inspections;
 
 import com.intellij.codeInspection.LocalInspectionToolSession;
@@ -68,7 +54,7 @@ public class PyInterpreterInspection extends PyInspection {
     @Override
     public void visitPyFile(PyFile node) {
       final Module module = ModuleUtilCore.findModuleForPsiElement(node);
-      if (module == null) return;
+      if (module == null || isFileIgnored(node)) return;
       final Sdk sdk = PythonSdkUtil.findPythonSdk(module);
 
       final boolean pyCharm = PlatformUtils.isPyCharm();
@@ -115,6 +101,10 @@ public class PyInterpreterInspection extends PyInspection {
     }
   }
 
+  private static boolean isFileIgnored(@NotNull PyFile pyFile) {
+    return PyInspectionExtension.EP_NAME.getExtensionList().stream().anyMatch(ep -> ep.ignoreMissingInterpreter(pyFile));
+  }
+
   public static final class ConfigureInterpreterFix implements LocalQuickFix {
     @NotNull
     @Override