GH-782: Implement ability to use sanctioned executable paths

pom.xml

@@ -21,7 +21,7 @@
 
   <groupId>io.github.ascopes</groupId>
   <artifactId>protobuf-maven-plugin-parent</artifactId>
-  <version>3.8.3-SNAPSHOT</version>
+  <version>3.9.0-SNAPSHOT</version>
 
   <name>Protobuf Maven Plugin Parent</name>
   <description>Parent POM for the Protobuf Maven Plugin.</description>

protobuf-maven-plugin/pom.xml

@@ -22,7 +22,7 @@
   <parent>
     <groupId>io.github.ascopes</groupId>
     <artifactId>protobuf-maven-plugin-parent</artifactId>
-    <version>3.8.3-SNAPSHOT</version>
+    <version>3.9.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>protobuf-maven-plugin</artifactId>

protobuf-maven-plugin/src/it/gh-782-sanctioned-executable-paths/invoker.properties

@@ -0,0 +1,17 @@
+#
+# Copyright (C) 2023 - 2025, Ashley Scopes.
+#
+# 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.
+#
+
+invoker.goals = clean package

protobuf-maven-plugin/src/it/gh-782-sanctioned-executable-paths/pom.xml

@@ -0,0 +1,129 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+
+    Copyright (C) 2023 - 2025, Ashley Scopes.
+
+    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.
+
+-->
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <parent>
+    <groupId>@project.groupId@.it</groupId>
+    <artifactId>integration-test-parent</artifactId>
+    <version>@project.version@</version>
+    <relativePath>../setup/pom.xml</relativePath>
+  </parent>
+
+  <groupId>gh-782-sanctioned-executable-paths</groupId>
+  <artifactId>gh-782-sanctioned-executable-paths</artifactId>
+
+  <properties>
+    <protobuf.version>4.28.2</protobuf.version>
+
+  </properties>
+
+  <dependencies>
+    <dependency>
+      <groupId>com.google.protobuf</groupId>
+      <artifactId>protobuf-java</artifactId>
+    </dependency>
+
+    <dependency>
+      <groupId>com.salesforce.servicelibs</groupId>
+      <artifactId>reactor-grpc-stub</artifactId>
+    </dependency>
+
+    <dependency>
+      <groupId>io.grpc</groupId>
+      <artifactId>grpc-protobuf</artifactId>
+    </dependency>
+
+    <dependency>
+      <groupId>io.grpc</groupId>
+      <artifactId>grpc-netty</artifactId>
+    </dependency>
+
+    <dependency>
+      <groupId>io.grpc</groupId>
+      <artifactId>grpc-stub</artifactId>
+    </dependency>
+
+    <dependency>
+      <groupId>io.projectreactor</groupId>
+      <artifactId>reactor-core</artifactId>
+    </dependency>
+
+    <!-- See https://github.com/grpc/grpc-java/issues/9179 -->
+    <dependency>
+      <groupId>javax.annotation</groupId>
+      <artifactId>javax.annotation-api</artifactId>
+    </dependency>
+
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter</artifactId>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-compiler-plugin</artifactId>
+      </plugin>
+
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-surefire-plugin</artifactId>
+      </plugin>
+
+      <plugin>
+        <groupId>@project.groupId@</groupId>
+        <artifactId>@project.artifactId@</artifactId>
+
+        <configuration>
+          <binaryMavenPlugins>
+            <binaryMavenPlugin>
+              <groupId>io.grpc</groupId>
+              <artifactId>protoc-gen-grpc-java</artifactId>
+              <version>${grpc.version}</version>
+            </binaryMavenPlugin>
+          </binaryMavenPlugins>
+
+          <jvmMavenPlugins>
+            <jvmMavenPlugin>
+              <groupId>com.salesforce.servicelibs</groupId>
+              <artifactId>reactor-grpc</artifactId>
+              <version>${reactor-grpc.version}</version>
+            </jvmMavenPlugin>
+          </jvmMavenPlugins>
+
+          <sanctionedExecutablePath>${java.io.tmpdir}/pmp-gh-782-sanctioned-executable-paths</sanctionedExecutablePath>
+        </configuration>
+
+        <executions>
+          <execution>
+            <goals>
+              <goal>generate</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
+</project>

protobuf-maven-plugin/src/it/gh-782-sanctioned-executable-paths/postbuild.groovy

@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2023 - 2025, Ashley Scopes.
+ *
+ * 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.
+ */
+import java.nio.file.FileVisitResult
+import java.nio.file.Files
+import java.nio.file.Path
+import java.nio.file.SimpleFileVisitor
+
+Path tempDir = Path.of(System.getProperty("java.io.tmpdir"))
+Path sanctionedDir = tempDir.resolve("pmp-gh-782-sanctioned-executable-paths")
+
+Files.walkFileTree(sanctionedDir, new SimpleFileVisitor<Path>() {
+  FileVisitResult visitFile(Path file, BasicFileAttributes _) {
+    println("Dropping file ${file}")
+    Files.delete(file)
+    return FileVisitResult.CONTINUE
+  }
+
+  FileVisitResult postVisitDirectory(Path dir, IOException _) {
+    println("Dropping dir ${dir}")
+    Files.delete(dir)
+    return FileVisitResult.CONTINUE
+  }
+})
+
+return true

protobuf-maven-plugin/src/it/gh-782-sanctioned-executable-paths/prebuild.groovy

@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2023 - 2025, Ashley Scopes.
+ *
+ * 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.
+ */
+import java.nio.file.Files
+import java.nio.file.Path
+
+Path tempDir = Path.of(System.getProperty("java.io.tmpdir"))
+
+// We use /tmp for this to work around Windows problems
+// with https://github.com/ascopes/protobuf-maven-plugin/pull/786
+Files.createDirectories(tempDir.resolve("pmp-gh-782-sanctioned-executable-paths"))
+
+return true

protobuf-maven-plugin/src/it/gh-782-sanctioned-executable-paths/src/main/java/org/example/helloworld/ReactorGreetingServiceImpl.java

@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2023 - 2025, Ashley Scopes.
+ *
+ * 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 org.example.helloworld;
+
+import reactor.core.publisher.Mono;
+
+public class ReactorGreetingServiceImpl extends ReactorGreetingServiceGrpc.GreetingServiceImplBase {
+  @Override
+  public Mono<GreetingResponse> greet(Mono<GreetingRequest> request) {
+    return request.map(body -> GreetingResponse.newBuilder()
+            .setText("Hello, " + body.getName() + "!")
+            .build());
+  }
+}

protobuf-maven-plugin/src/it/gh-782-sanctioned-executable-paths/src/main/protobuf/helloworld.proto

@@ -0,0 +1,35 @@
+//
+// Copyright (C) 2023 - 2025, Ashley Scopes.
+//
+// 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.
+//
+
+syntax = "proto3";
+
+option java_multiple_files = true;
+option java_package = "org.example.helloworld";
+
+package org.example.helloworld;
+
+message GreetingRequest {
+  string name = 1;
+}
+
+message GreetingResponse {
+  string text = 1;
+}
+
+service GreetingService {
+  rpc Greet(GreetingRequest) returns (GreetingResponse);
+}
+

protobuf-maven-plugin/src/it/gh-782-sanctioned-executable-paths/src/test/java/org/example/helloworld/ReactorGreetingServiceImplTest.java

@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2023 - 2025, Ashley Scopes.
+ *
+ * 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 org.example.helloworld;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import io.grpc.ManagedChannelBuilder;
+import io.grpc.ServerBuilder;
+import org.junit.jupiter.api.Test;
+
+class ReactorGreetingServiceImplTest {
+  @Test
+  void greetingServiceWorksAsExpected() throws Throwable {
+    // Given
+    var service = new ReactorGreetingServiceImpl();
+    var server = ServerBuilder
+        .forPort(8084)
+        .addService(service)
+        .build();
+    var channel = ManagedChannelBuilder.forAddress("localhost", 8084)
+        .usePlaintext()
+        .build();
+    var stub = ReactorGreetingServiceGrpc.newReactorStub(channel);
+
+    try {
+      server.start();
+
+      // When
+      var request = GreetingRequest
+          .newBuilder()
+          .setName("Dave")
+          .build();
+      var response = stub.greet(request).block();
+
+      // Then
+      assertEquals("Hello, Dave!", response.getText());
+    } finally {
+      server.shutdown();
+      server.awaitTermination();
+    }
+  }
+}