protoc-jar-maven-plugin

This was forked from os72/protoc-jar-maven-plugin because we need to use the 3.2.0.2-SNAPSHOT that have the filesystem issue fixed. The groupId was changed from com.github.os72 to com.symphony to avoid conflicts.

Protocol Buffers protobuf maven plugin - performs protobuf code generation using protoc-jar multi-platform executable protoc JAR. Available on Maven Central: https://repo.maven.apache.org/maven2/com/github/os72/protoc-jar-maven-plugin/3.11.4/

Simple maven plugin to compile .proto files using protoc-jar embedded protoc compiler, providing some portability across the major platforms (Linux, Mac/OSX, and Windows). At build time the plugin detects the platform and executes the corresponding protoc binary.

Supports embedded protoc versions 3.2.0, 3.11.0, 3.11.4, and any binaries (protoc and protoc plugins) available for download from maven central. Also supports pre-installed protoc binary

• Support for FreeBSD on x86 platform (freebsd-x86_64), thanks kjopek
• Support for Solaris on x86 platform (sunos-x86_64), thanks siepkes
• Support for Linux on POWER8 platform (linux-ppcle_64), now from Google
  • Older versions (up to 3.6.0), thanks to Apache SystemML folks (nakul02)
• Support for Linux on ARM platform (linux-aarch_64), now from Google
  • Older versions (2.4.1, 2.6.1, 3.4.0), thanks garciagorka

See also

• https://github.com/os72/protoc-jar
• https://github.com/os72/protobuf-java-shaded-241
• https://github.com/os72/protobuf-java-shaded-250
• https://github.com/os72/protobuf-java-shaded-261
• https://github.com/os72/protobuf-java-shaded-351
• https://github.com/os72/protobuf-java-shaded-360
• https://github.com/os72/protobuf-java-shaded-3-11-1
• https://github.com/google/protobuf

Binaries

• https://repo.maven.apache.org/maven2/com/google/protobuf/protoc/
• https://repo.maven.apache.org/maven2/com/github/os72/protoc/

Usage

Documentation: see http://os72.github.io/protoc-jar-maven-plugin/, in particular run-mojo

Sample usage - compile in main cycle into target/generated-sources, add generated sources to project, use default protoc version and default src/main/protobuf source folder:

<plugin>
	<groupId>com.symphony</groupId>
	<artifactId>protoc-jar-maven-plugin</artifactId>
	<version>3.11.0.0</version>
	<executions>
		<execution>
			<phase>generate-sources</phase>
			<goals>
				<goal>run</goal>
			</goals>
		</execution>
	</executions>
</plugin>

Sample usage - generate with custom shaded package

<plugin>
	<groupId>com.symphony</groupId>
	<artifactId>protoc-jar-maven-plugin</artifactId>
	<version>3.11.0.0</version>
    <configuration>
        <protocVersion>3.11.0</protocVersion> <!-- 2.4.1, 2.5.0, 2.6.1, 3.2.0 -->
        <type>java-shaded</type>
        <addSources>none</addSources>
        <shadedProtobufPackage>com.symphony.proto</shadedProtobufPackage> <!--custom package name-->
    </configuration>
	<executions>
		<execution>
			<phase>generate-sources</phase>
			<goals>
				<goal>run</goal>
			</goals>
			<configuration>
				<outputDirectory>src/main/java</outputDirectory>
				<inputDirectories>
					<include>src/main/protobuf</include>
				</inputDirectories>
			</configuration>
		</execution>
	</executions>
</plugin>

Sample usage - download protoc and plugin binaries from maven repo, multiple output targets (example: gRPC):

<plugin>
	<groupId>com.symphony</groupId>
	<artifactId>protoc-jar-maven-plugin</artifactId>
	<version>3.11.0.0</version>
	<executions>
		<execution>
			<phase>generate-sources</phase>
			<goals>
				<goal>run</goal>
			</goals>
			<configuration>
				<protocArtifact>com.google.protobuf:protoc:3.2.0</protocArtifact>
				<inputDirectories>
					<include>src/main/resources</include>
				</inputDirectories>
				<outputTargets>
					<outputTarget>
						<type>java</type>
					</outputTarget>
					<outputTarget>
						<type>grpc-java</type>
						<pluginArtifact>io.grpc:protoc-gen-grpc-java:1.0.1</pluginArtifact>
					</outputTarget>
				</outputTargets>
			</configuration>
		</execution>
	</executions>
</plugin>

Sample usage - compile in test cycle, multiple output targets, don't alter project (<addSources>: none):

<plugin>
	<groupId>com.symphony</groupId>
	<artifactId>protoc-jar-maven-plugin</artifactId>
	<version>3.11.0.0</version>
	<executions>
		<execution>
			<phase>generate-test-sources</phase>
			<goals>
				<goal>run</goal>
			</goals>
			<configuration>
				<protocVersion>2.4.1</protocVersion> <!-- 2.4.1, 2.5.0, 2.6.1, 3.2.0 -->
				<inputDirectories>
					<include>src/test/resources</include>
				</inputDirectories>
				<outputTargets>
					<outputTarget>
						<type>java</type>
						<addSources>none</addSources>
						<outputDirectory>src/test/java</outputDirectory>
					</outputTarget>
					<outputTarget>
						<type>descriptor</type>
						<addSources>none</addSources>
						<outputDirectory>src/test/resources</outputDirectory>
					</outputTarget>
				</outputTargets>
			</configuration>
		</execution>
	</executions>
</plugin>

Credits

Originally based on

• https://github.com/igor-petruk/protobuf-maven-plugin