Spring Contract Maven Plugin pushStubsToScm does not work - spring

Question

I tried to use Spring Contract Maven Plugin in a producer side to upload the stubs jar and share it with consumers.
I am using Spring Cloud Contract 2.0.0.
I configured the spring-cloud-contract-maven-plugin in my project, the codes is uploaded to Github.
<plugin>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-contract-maven-plugin</artifactId>
<version>${spring-cloud-contract.version}</version>
<extensions>true</extensions>
<configuration>
<basePackageForTests>com.example.demo</basePackageForTests>
<baseClassMappings>
<baseClassMapping>
<contractPackageRegex>.*rest.*</contractPackageRegex>
<baseClassFQN>com.example.demo.RestVerifierBase</baseClassFQN>
</baseClassMapping>
</baseClassMappings>
<!-- We want to pick contracts from a Git repository -->
<!--<contractsRepositoryUrl>git://file://${project.basedir}/target/contract_git/</contractsRepositoryUrl>-->
<!-- Example of URL via git protocol -->
<!--<contractsRepositoryUrl>git://git#github.com:spring-cloud-samples/spring-cloud-contract-samples.git</contractsRepositoryUrl>-->
<!-- Example of URL via http protocol -->
<!--<contractsRepositoryUrl>git://https://github.com/spring-cloud-samples/spring-cloud-contract-samples.git</contractsRepositoryUrl>-->
<contractsRepositoryUrl>git://https://github.com/hantsy/contracts-git.git</contractsRepositoryUrl>
<!-- We reuse the contract dependency section to set up the path
to the folder that contains the contract definitions. In our case the
path will be /groupId/artifactId/version/contracts -->
<contractDependency>
<groupId>${project.groupId}</groupId>
<artifactId>${project.artifactId}</artifactId>
<version>${project.version}</version>
</contractDependency>
<!-- The mode can't be classpath -->
<contractsMode>REMOTE</contractsMode>
</configuration>
<executions>
<execution>
<phase>package</phase>
<goals>
<!-- By default we will not push the stubs back to SCM,
you have to explicitly add it as a goal -->
<goal>pushStubsToScm</goal>
</goals>
</execution>
</executions>
</plugin>
When I ran command mvn clean install -DskipTests -DcontractsRepositoryUsername=hantsy -DcontractsRepositoryPassword=mypassword and got the failure.
Caused by: org.eclipse.jgit.errors.TransportException: https://github.com/hantsy/contracts-git.git: Authentication is required but no CredentialsProvider has been registered
Update: If I set contractsMode to LOCAL, it will fail with downloading stubs jar error, maybe similar with this issue, in the new version 2.0.0, Spring Cloud contracts can not resolve jars from Local maven repos as expected when stubsMode is set to LOCAL.
Update 2: I also tried to add contractsRepositoryUsername and contractsRepositoryPassword in spring contract maven plugin config, it does not work.

Answer 1

contractsMode needs to be REMOTE. I've taken your example and it works well with:
<contractsRepositoryUrl>git://git#github.com:marcingrzejszczak/contracts-git.git</contractsRepositoryUrl>
<contractsMode>REMOTE</contractsMode>
with passing the credentials manually I see sth absolutely bizarre...
I see [INFO] Passed username and password - will set a custom credentials provider which means that username and password got passed and I'm using them. But actually what I get is Authentication is required but no CredentialsProvider has been registered, which makes no sense. Can you file another bug for that? The workaround is to use the agent.
UPDATE:
The issue got fixed here https://github.com/spring-cloud/spring-cloud-contract/issues/678