external tool macro for directory containing Python interpreter (PY-6533)

platform/projectModel-impl/src/com/intellij/application/options/PathMacrosImpl.java

@@ -129,7 +129,8 @@ public class PathMacrosImpl extends PathMacros implements ApplicationComponent,
     "SelectionStartLine",
     "SelectionEndLine",
     "SelectionStartColumn",
-    "SelectionEndColumn"
+    "SelectionEndColumn",
+    "PyInterpreterDirectory"
   );
 
   public PathMacrosImpl() {

python/src/META-INF/python-core.xml

@@ -473,6 +473,8 @@
     <postStartupActivity implementation="com.jetbrains.python.packaging.PyPIPackagesUpdater"/>
     <postStartupActivity implementation="com.jetbrains.python.testing.PyTestRunnerUpdater"/>
 
+    <macro implementation="com.jetbrains.python.sdk.InterpreterDirectoryMacro"/>
+
     <!-- User skeletons -->
     <codeInsight.lineMarkerProvider language="Python" implementationClass="com.jetbrains.python.codeInsight.userSkeletons.PyUserSkeletonsLineMarkerProvider"/>
 
@@ -504,7 +506,6 @@
     <!-- Packaging -->
     <moduleService serviceInterface="com.jetbrains.python.packaging.PyPackageRequirementsSettings"
                    serviceImplementation="com.jetbrains.python.packaging.PyPackageRequirementsSettings"/>
-
   </extensions>
 
   <extensionPoints>

python/src/com/jetbrains/python/sdk/InterpreterDirectoryMacro.java

@@ -0,0 +1,73 @@
+/*
+ * Copyright 2000-2013 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.
+ */
+package com.jetbrains.python.sdk;
+
+import com.intellij.ide.macro.Macro;
+import com.intellij.openapi.actionSystem.CommonDataKeys;
+import com.intellij.openapi.actionSystem.DataContext;
+import com.intellij.openapi.actionSystem.LangDataKeys;
+import com.intellij.openapi.module.Module;
+import com.intellij.openapi.module.ModuleManager;
+import com.intellij.openapi.project.Project;
+import com.intellij.openapi.projectRoots.Sdk;
+import com.intellij.openapi.util.io.FileUtil;
+import com.intellij.openapi.vfs.VirtualFile;
+import com.intellij.util.PathUtil;
+import org.jetbrains.annotations.Nullable;
+
+/**
+ * @author yole
+ */
+public class InterpreterDirectoryMacro extends Macro {
+  @Override
+  public String getName() {
+    return "PyInterpreterDirectory";
+  }
+
+  @Override
+  public String getDescription() {
+    return "The directory containing the Python interpreter selected for the project";
+  }
+
+  @Nullable
+  @Override
+  public String expand(DataContext dataContext) throws ExecutionCancelledException {
+    Module module = LangDataKeys.MODULE.getData(dataContext);
+    if (module == null) {
+      Project project = CommonDataKeys.PROJECT.getData(dataContext);
+      if (project == null) {
+        return null;
+      }
+      Module[] modules = ModuleManager.getInstance(project).getModules();
+      if (modules.length == 0) {
+        return null;
+      }
+      module = modules[0];
+    }
+    Sdk sdk = PythonSdkType.findPythonSdk(module);
+    if (sdk != null) {
+      VirtualFile homeDir = sdk.getHomeDirectory();
+      if (homeDir == null) {
+        return null;
+      }
+      String path = PathUtil.getLocalPath(homeDir.getParent());
+      if (path != null) {
+        return FileUtil.toSystemDependentName(path);
+      }
+    }
+    return null;
+  }
+}