Import "google/protobuf/wrappers.proto" was not found scala - scala

Question

I have a .proto file which Imports google/protobuf/wrappers.proto
while I run Scalapbc to generate the relevant scala code out of it it gives Import google/protobuf/wrappers.proto not found error.
as a workaround for now I have kept the wrappers.proto file in file system for now inside --proto_path
But I need to come up with a fix wherein I need add the relevant dependencies in build.sbt / pom.xml to unpack the jar containing default proto files (such as wrappers.proto) before calling Scalapbc

Answer 1

All the required dependencies are provided by scalabp runtime
import sbtprotoc.ProtocPlugin.ProtobufConfig
import scalapb.compiler.Version.scalapbVersion
libraryDependencies ++= Seq(
"com.thesamet.scalapb" %% "scalapb-runtime" % scalapbVersion,
"com.thesamet.scalapb" %% "scalapb-runtime" % scalapbVersion % ProtobufConfig
)

Answer 2

I uses the AkkaGrpcPugin for sbt which seems to handle all the dependencies.
In plugins.sbt I have
addSbtPlugin("com.lightbend.akka.grpc" % "sbt-akka-grpc" % "1.1.1")
In build.sbt I have
enablePlugins(AkkaGrpcPlugin)
In automatically picks up the files in src/main/protobuf for the project and generates the appropriate stub files. I can import standard files, e.g.
import "google/protobuf/timestamp.proto";
For multi-project builds I use something like this:
lazy val allProjects = (project in file("."))
.aggregate(util, grpc)
lazy val grpc =
project
.in(file("grpc"))
.settings(
???
)
.enablePlugins(AkkaGrpcPlugin)
lazy val util =
project
.in(file("util"))
.settings(
???
)
.dependsOn(grpc)

Answer 3

Thanks everyone for your answers. I really appreciate it.
I was able to solve the dependency issue by
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<executions>
<execution>
<id>unpack</id>
<phase>prepare-package</phase>
<goals>
<goal>unpack</goal>
</goals>
<configuration>
<artifactItems>
<artifactItem>
<groupId>com.google.protobuf</groupId>
<artifactId>protobuf-java</artifactId>
<version>3.10.0</version>
<type>jar</type>
<includes>path/to/Files.whatsoever</includes>
<outputDirectory>${project.build.directory}/foldername</outputDirectory>
</artifactItem>
</artifactItems>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
This generates the required proto files inside target folder