A python argparse inspired library to parse command line arguments
You need to add the dependency
"de.halcony" %% "scala-argparse" % "(version)"
as well as the resolver
resolvers ++= Seq(
"Sonatype OSS Snapshots" at "https://s01.oss.sonatype.org/content/repositories/public",
)
import de.halcony.argparse._
def main(argv : Array[String]) : Unit = {
val parser = Parser("example parser",
"this is the description for the example parser")
.addPositional("positional-name",n => n.toInt, "positional description")
.addOptional("optional-name",'o',"optional-long-parameter-name",identity[String],Some("default-value"),"the description")
.addFlag("flag-name",'f',"flag-long-name","the description")
.addDefault[<hereIsTheType]("default-value-name", defaultValueValue)
.addSubparser(Parser("subparser-name","subparser description")
...
/* and so on and so forth */
val pargs = parser.parseArgv(argv.toList)
pargs.get[Boolean]("flag-name")
pargs.get[String]("optional-name")
pargs.get[Int]("positional-name")
pargs.get[<hereIsTheType>]("default-value-name")
./program positional-value -o optional-value -f subparser-name ....
There is a help flag that is triggered by -h/--help however this conflicts with the help flag of java itself,
thus you need to adapt your cmd line call accordingly.
The hierarchy of parsers is flattened and the last (i.e., the deepest parser) takes precedent if multiple same (e.g., default values) are defined.