tlinx-gettext.kotlinx-gettext-plugin.0.4.1-dev-1-ir.source-code.GettextCommandLineProcessor.kt Maven / Gradle / Ivy

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Kotlin Compiler plugin to extract strings for i18n in Gettext format

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/*
 * Copyright 2022 Victor Kropp
 *
 * 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 name.kropp.kotlinx.gettext

import com.google.auto.service.AutoService
import org.jetbrains.kotlin.compiler.plugin.AbstractCliOption
import org.jetbrains.kotlin.compiler.plugin.CliOption
import org.jetbrains.kotlin.compiler.plugin.CommandLineProcessor
import org.jetbrains.kotlin.config.CompilerConfiguration
import org.jetbrains.kotlin.config.CompilerConfigurationKey

@AutoService(CommandLineProcessor::class)
class GettextCommandLineProcessor : CommandLineProcessor {
    companion object {
        private const val OPTION_BASE_DIR = "baseDir"
        private const val OPTION_POT_FILE = "potFile"
        private const val OPTION_OVERWRITE = "overwrite"
        private const val OPTION_KEYWORD = "keyword"

        val ARG_BASE_DIR = CompilerConfigurationKey(OPTION_POT_FILE)
        val ARG_OVERWRITE = CompilerConfigurationKey(OPTION_OVERWRITE)
        val ARG_POT_FILE = CompilerConfigurationKey(OPTION_BASE_DIR)
        val ARG_KEYWORDS = CompilerConfigurationKey>(OPTION_KEYWORD)
    }

    override val pluginId: String = KOTLIN_PLUGIN_ID

    override val pluginOptions: Collection = listOf(
        CliOption(
            optionName = OPTION_BASE_DIR,
            valueDescription = "directory",
            description = "base path to files",
            required = false,
        ),
        CliOption(
            optionName = OPTION_POT_FILE,
            valueDescription = "file",
            description = ".pot file to extract messages to",
            required = true,
        ),
        CliOption(
            optionName = OPTION_OVERWRITE,
            valueDescription = "boolean",
            description = "always overwrite .pot file",
            required = true,
        ),
        CliOption(
            optionName = OPTION_KEYWORD,
            valueDescription = "string",
            description = "method name to look for in xgettext format",
            allowMultipleOccurrences = true,
            required = false
        )
    )

    override fun processOption(
        option: AbstractCliOption,
        value: String,
        configuration: CompilerConfiguration
    ) {
        return when (option.optionName) {
            OPTION_BASE_DIR -> configuration.put(ARG_BASE_DIR, value)
            OPTION_POT_FILE -> configuration.put(ARG_POT_FILE, value)
            OPTION_OVERWRITE -> configuration.put(ARG_OVERWRITE, value.toBooleanStrictOrNull() ?: false)
            // ;COMMA; - magic separator used instead of comma, because comma is used by compiler
            // see KotlinxGettextGradlePlugin.kt
            OPTION_KEYWORD -> configuration.add(ARG_KEYWORDS, value.replace(";COMMA;", ","))
            else -> throw IllegalArgumentException("Unexpected config option ${option.optionName}")
        }
    }
}