kotlinx.kover.gradle.plugin.util.Versions.kt Maven / Gradle / Ivy

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Kotlin code coverage plugin

There is a newer version: 0.9.0-RC

/*
 * Copyright 2017-2023 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
 */

package kotlinx.kover.gradle.plugin.util

internal class SemVer(private val major: Int, private val minor: Int?, private val patch: Int?) : Comparable {
    val minorSafe: Int = minor ?: 0
    val patchSafe: Int = patch ?: 0

    companion object {
        /**
         * Supported formats:
         *  - "1"
         *  - "1.2"
         *  - "1.2.3"
         */
        fun ofVariableOrNull(version: String): SemVer? {
            val parts = version.substringBefore('-').split(".")

            val major = parts[0].toIntOrNull()?: return null
            val minor = parts.getOrNull(1)?.toIntOrNull()
            val patch = parts.getOrNull(2)?.toIntOrNull()

            return SemVer(major, minor, patch)
        }

        fun ofThreePartOrNull(version: String): SemVer? {

            val parts = version.substringBefore('-').split(".")
            if (parts.size != 3) return null

            val major = parts[0].toIntOrNull()?: return null
            val minor = parts[1].toIntOrNull()?: return null
            val patch = parts[2].toIntOrNull()?: return null

            return SemVer(major, minor, patch)
        }
    }

    /**
     *  Comparison uses the substitution of the missing parts:
     *  - 1 == 1.0.0
     *  - 1.2 == 1.2.0
     */
    override fun compareTo(other: SemVer): Int {
        major.compareTo(other.major).takeIf { it != 0 }?.let { return it }
        minorSafe.compareTo(other.minorSafe).takeIf { it != 0 }?.let { return it }
        return patchSafe.compareTo(other.patchSafe)
    }

    override fun equals(other: Any?): Boolean {
        other ?: return false
        return other is SemVer && this.compareTo(other) == 0
    }

    override fun toString(): String {
        return listOfNotNull(major.toString(), minor?.toString(), patch?.toString()).joinToString(".")
    }

    override fun hashCode(): Int {
        var result = major.hashCode()
        result = 31 * result + minorSafe.hashCode()
        result = 31 * result + patchSafe.hashCode()
        return result
    }
}