gontard / scalapb-validate

ScalaPB generator for PGV

Running the test harness

PGV repo includes a comprehensive test suite defined over these proto files.

To run this test suite against scalapb-validate:

1. Run ./make_harness.sh. This will download bazelisk, clone PGV, and compile its test executor. It is only needed to be done once, and can take a few minutes to compile.

2. In SBT, run e2eJVM2_13/test:runMain scalapb.validate.ScalaHarness.

Adding the latest snapshot release to your project

1. Note the latest snapshot version on Sonatype Snapshots

   

2. Add the following to your project/plugins.sbt, replace the validateVersion value with the snapshot version you have found in the previous step:

   ThisBuild / resolvers += Resolver.sonatypeRepo("snapshots")
   
   addSbtPlugin("com.thesamet" % "sbt-protoc" % "0.99.34")
   
   libraryDependencies += "com.thesamet.scalapb" %% "compilerplugin" % "0.10.8"
   
   val validateVersion = "0.1.2"
   
   libraryDependencies += "com.thesamet.scalapb" %% "scalapb-validate-codegen" % validateVersion
   

3. Add the following to your build.sbt:

   ThisBuild / resolvers += Resolver.sonatypeRepo("snapshots")
   
   PB.targets in Compile := Seq(
     scalapb.gen() -> (sourceManaged in Compile).value / "scalapb",
     scalapb.validate.gen() -> (sourceManaged in Compile).value / "scalapb"
   )
   
   libraryDependencies ++= Seq(	
     "com.thesamet.scalapb" %% "scalapb-validate-core" % scalapb.validate.compiler.BuildInfo.version % "protobuf"	
   )
   

4. import validate/validate.proto in your protobufs and set up validators as described in protoc-gen-validate documentation.

5. The generated code will generate a Validator object for each message class. For example, if you have a Person message, it will generate a PersonValidator object that has a validate(instance: Person) method that returns a validation Result.

Examples

See a full example at the examples directory.