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112 lines
3.4 KiB
Kotlin
112 lines
3.4 KiB
Kotlin
import kotlin.collections.LinkedHashSet
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import java.io.File
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val templateEnding = Regex("\\.ktstemplate(\\.[^\\.]*)*$")
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val templateOnlyEnding = Regex("\\.ktstemplate")
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val singleArgumentRegex = Regex("^[\\w\\d]+$")
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val splitterRegex = Regex("[ ]*=[ ]*")
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sealed interface Mode {
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fun filesList(folder: File): Sequence<File>
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data object Recursive : Mode {
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override fun filesList(folder: File): Sequence<File> {
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return sequence {
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val folders = mutableListOf<File>()
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folders.add(folder)
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while (folders.isNotEmpty()) {
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val currentFolder = folders.removeAt(0)
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currentFolder.listFiles().toList().forEach {
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when {
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it.isFile -> yield(it)
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it.isDirectory -> folders.add(it)
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}
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}
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}
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}
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}
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}
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data object Plain : Mode {
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override fun filesList(folder: File): Sequence<File> {
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return sequence {
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folder.listFiles().forEach {
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yield(it)
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}
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}
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}
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}
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}
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var mode: Mode = Mode.Recursive
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val folders = args.mapNotNull {
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if (it.startsWith("-")) { // assume some arg
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when (it) {
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"--plain" -> mode = Mode.Plain
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"--recursive" -> mode = Mode.Recursive
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"--help" -> {
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println("[...pathnames] [--recursive] [--plain]")
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println("...pathnames - Pass any count of folder or files paths")
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println("--recursive - (default) Use recursive visiting of folders for each path in pathnames")
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println("--plain - (default) Use plain (non-recursive) visiting of folders for each path in pathnames")
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}
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}
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null
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} else {
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File(it)
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}
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}.ifEmpty {
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listOf(File("./"))
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}
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fun String.replaceVariables(variables: Map<String, String>): String {
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var currentLine = this
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variables.forEach { (k, v) ->
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currentLine = currentLine.replace("\${${k}}", v)
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if (k.matches(singleArgumentRegex)) {
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currentLine = currentLine.replace("\$${k}", v)
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}
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}
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return currentLine
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}
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fun generateFromTemplate(folder: File, file: File) {
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val targetFile = File(folder, file.name.replace(templateOnlyEnding, ""))
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val variables = mutableMapOf<String, String>()
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var writeVariables = true
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var text = ""
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file.readLines().forEach { line ->
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when {
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writeVariables && line.startsWith("#") -> {
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writeVariables = false
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}
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writeVariables -> {
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val splitted = line.split(splitterRegex)
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if (splitted.size > 1) {
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val k = splitted[0]
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val v = splitted[1].replaceVariables(variables)
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variables[k] = v
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}
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return@forEach
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}
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}
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text += line.let {
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line.replaceVariables(variables) + "\n"
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}
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}
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targetFile.writeText(text)
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println("${targetFile.absolutePath} has been recreated")
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}
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if (args.none { it == "--help" }) {
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folders.forEach { folder ->
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mode.filesList(folder).forEach { file ->
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if (file.name.contains(templateEnding)) {
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generateFromTemplate(file.parentFile, file)
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}
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}
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}
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}
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