tag-master ignores git tag errors

[schmid-hanspeter]

In TagMasterMojo the return value of the call to provider.tag(..) is ignored. The following fix takes this return value into account and produces an error log and exception exactly like maven's scm plugin would:

final TagScmResult tagScmResult = provider.tag(repository, new ScmFileSet(project.getBasedir()), sanitizedTag, tagParams);
if (!tagScmResult.isSuccess()) {
    getLog().error("Provider message:");
    getLog().error(tagScmResult.getProviderMessage());
    getLog().error("Command output:");
    getLog().error(tagScmResult.getCommandOutput());

    throw new MojoFailureException(tagScmResult.getProviderMessage());
}

I have had tag-master silently fail on me because of, for example, a duplicate tag.

[bvarner]

Care to send this as a PR? :-)

[schmid-hanspeter]

PR sent :-)

[bvarner]

Thanks for the submission! It's merged to development.