org.web3j.openapi.codegen.utils.CopyUtils.kt Maven / Gradle / Ivy

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/*
 * Copyright 2020 Web3 Labs Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
 * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations under the License.
 */
package org.web3j.openapi.codegen.utils

import com.pinterest.ktlint.core.KtLint
import com.pinterest.ktlint.ruleset.experimental.ExperimentalRuleSetProvider
import com.pinterest.ktlint.ruleset.standard.StandardRuleSetProvider
import org.slf4j.Logger
import org.slf4j.LoggerFactory
import java.io.File
import java.nio.file.Files
import java.nio.file.Path
import java.nio.file.StandardCopyOption

internal object CopyUtils {

    private val logger: Logger = LoggerFactory.getLogger(CopyUtils::class.java)

    private val ruleSets = listOf(
        StandardRuleSetProvider().get(),
        ExperimentalRuleSetProvider().get()
    )

    fun copyResource(name: String, outputDir: File) {
        Files.copy(
            javaClass.classLoader.getResourceAsStream(name)!!,
            outputDir.resolve(name).toPath(),
            StandardCopyOption.REPLACE_EXISTING
        )
    }

    fun createTree(module: String, packageDir: String, outputDir: String): String {
        val folder = File(
            Path.of(
                outputDir,
                module,
                "src",
                "main",
                "kotlin",
                packageDir,
                module
            ).toString()
        )
            .apply { mkdirs() }
        return folder.absolutePath
    }

    /**
     * Format a given Kotlin file using KtLint.
     */
    fun kotlinFormat(file: File) {
        KtLint.format(
            KtLint.Params(
                ruleSets = ruleSets,
                cb = { error, _ ->
                    logger.warn(error.toString())
                },
                text = file.readText(),
                debug = true
            )
        ).run {
            file.writeText(this)
        }
    }
}