kotlinx.kover.gradle.plugin.util.Util.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

import java.io.File
import java.util.regex.Pattern

internal fun Iterable.asPatterns(): List = map { Pattern.compile(it.wildcardsToRegex()) }

/**
 * Executes `block` of code only if boolean value is `true`.
 */
internal inline fun  Boolean.ifTrue(block: () -> T): T? {
    return if (this) {
        block()
    } else {
        null
    }
}

/**
 * Executes `block` of code only if boolean value is `false`.
 */
internal inline fun  Boolean.ifFalse(block: () -> T): T? {
    return if (!this) {
        block()
    } else {
        null
    }
}

/**
 * Replaces characters `*` or `.` to `.*` and `.` regexp characters.
 */
internal fun String.wildcardsToRegex(): String {
    // in most cases, the characters `*` or `.` will be present therefore, we increase the capacity in advance
    val builder = StringBuilder(length * 2)

    forEach { char ->
        when (char) {
            in regexMetacharactersSet -> builder.append('\\').append(char)
            '*' -> builder.append('.').append("*")
            '?' -> builder.append('.')
            else -> builder.append(char)
        }
    }

    return builder.toString()
}

internal val ONE_HUNDRED = 100.toBigDecimal()

private val regexMetacharactersSet = "<([{\\^-=$!|]})+.>".toSet()

internal fun File.subdirs(): List {
    return listFiles { it ->
        it.exists() && it.isDirectory
    }?.toList() ?: emptyList()
}