net.twisterrob.gradle.quality.report.html.ViolationsGrouper.kt Maven / Gradle / Ivy

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package net.twisterrob.gradle.quality.report.html

import net.twisterrob.gradle.quality.Violation
import net.twisterrob.gradle.quality.Violations

internal typealias Category = String
internal typealias Reporter = String

@Suppress("USELESS_CAST") // Casts are useful to convert String to typealias.
internal fun group(violationss: List): Map>> {
	val allViolations = violationss.flatMap { it.violations.orEmpty() }

	@Suppress("detekt.CastToNullableType") // TODEL false positive https://github.com/detekt/detekt/issues/6676
	val group = allViolations
		.groupBy { it.category as Category? }
		.toSortedMap(nullsLast(compareBy { it }))
		.mapValues { (_, violations) ->
			violations
				.groupBy { it.source.reporter as Reporter }
				.toSortedMap(compareBy { it })
				.mapValues { (_, violations) ->
					violations.sortedWith(
						compareBy { it.rule }
							.thenBy { it.location.file }
							.thenBy { it.location.startLine }
							.thenBy { it.location.column }
					)
				}
		}
	return group
}