Allow an inputDir, in addition to an inputFile

[Thunderforge]

Similar Javacc Gradle plugins such as this one allow users to specify an input directory like so:

compileJjtree {
    inputDirectory = file('src/main/jjtree')
    outputDirectory = file(project.buildDir.absolutePath + '/generated/jjtree')
}

However, this plugin only allows inputFile as a variable, meaning that if the project has a directory full of .jj files, they'll have to specify them one at a time.

It would be great if this plugin had the ability to specify an inputDir as well to achieve parity with competing plugins.

[asarkar]

@Thunderforge Wondering if the other one already provides the feature you're looking for, why are you even considering this plugin? Your answer will help me choose between the javacc/javaccPlugin and this one.

[Thunderforge]

@asarkar I moved on from that project about three years ago. I vaguely recall that this project was already using the javacc-gradle-plugin, which is why we were using it in the first place, and we needed some different functionality. I no longer recall what our ultimate solution was.