coursier.util.ModuleMatcher.scala Maven / Gradle / Ivy
The newest version!
package coursier.util
import java.util.regex.Pattern
import coursier.core.{Module, ModuleName, Organization}
import scala.annotation.tailrec
import scala.util.matching.Regex
final case class ModuleMatcher(matcher: Module) {
import ModuleMatcher.blobToPattern
lazy val orgPattern = blobToPattern(matcher.organization.value)
lazy val namePattern = blobToPattern(matcher.name.value)
lazy val attributesPattern = matcher
.attributes
.mapValues(blobToPattern(_))
.iterator
.toMap
def matches(module: Module): Boolean =
orgPattern.pattern.matcher(module.organization.value).matches() &&
namePattern.pattern.matcher(module.name.value).matches() &&
module.attributes.keySet == attributesPattern.keySet &&
attributesPattern.forall {
case (k, p) =>
module.attributes.get(k).exists(p.pattern.matcher(_).matches())
}
}
object ModuleMatcher {
def apply(org: Organization, name: ModuleName, attributes: Map[String, String] = Map.empty): ModuleMatcher =
ModuleMatcher(Module(org, name, attributes))
@tailrec
private def blobToPattern(s: String, b: StringBuilder = new StringBuilder): Regex =
if (s.isEmpty)
b.result().r
else {
val idx = s.indexOf('*')
if (idx < 0) {
b ++= Pattern.quote(s)
b.result().r
} else {
if (idx > 0)
b ++= Pattern.quote(s.substring(0, idx))
b ++= ".*"
blobToPattern(s.substring(idx + 1), b)
}
}
}