AntlrTask doesn't respect non-default source-directories

[snazy]

Using a custom source-directory for antlr grammar files doesn't work.

For example (Kotlin):

sourceSets {
    main {
        withConvention(AntlrSourceVirtualDirectory::class) {
            this.antlr.srcDir("src/antlr")
        }
    }
}

The above changes the srcDir, but the inputDirectories evaluated in AntlrExecuter still evaluates the default src/main/antlr, which leads to wrong relative directories and in turn a failed build. I.e. spec.getGrammarFiles() uses the correct set of files (in src/antlr), but spect.getInputDirectories() always uses src/main/antlr.

TBH, the nested for-each-loops over the input-directories AND the relative source-grammar files is quite confusing.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. Given the limited bandwidth of the team, it will be automatically closed if no further activity occurs. If you're interested in how we try to keep the backlog in a healthy state, please read our blog post on how we refine our backlog. If you feel this is something you could contribute, please have a look at our Contributor Guide. Thank you for your contribution.

[stale]

This issue has been automatically closed due to inactivity. If you can reproduce this on a recent version of Gradle or if you have a good use case for this feature, please feel free to to let know so we can reopen the issue. Please try to provide steps to reproduce, a quick explanation of your use case or a high-quality pull request.

[abextm]

This is still broken in 8.1