Share directory listing code among all platforms except androidNative

Author: fzhinkin

build-logic/src/main/kotlin/kotlinx/io/conventions/kotlinx-io-multiplatform.gradle.kts

@@ -80,6 +80,12 @@ kotlin {
                         group("androidNative")
                     }
                 }
+
+                group("nonAndroid") {
+                    group("apple")
+                    group("mingw")
+                    group("linux")
+                }
             }
             group("nodeFilesystemShared") {
                 withJs()

core/apple/src/files/FileSystemApple.kt

@@ -53,26 +53,6 @@ internal actual fun realpathImpl(path: String): String {
     }
 }
 
-
-@OptIn(ExperimentalForeignApi::class, ExperimentalStdlibApi::class)
-internal actual class OpaqueDirEntry constructor(private val dir: CPointer<DIR>) : AutoCloseable {
-    actual fun readdir(): String? {
-        val entry = readdir(dir) ?: return null
-        return entry[0].d_name.toKString()
-    }
-
-    override fun close() {
-        closedir(dir)
-    }
-}
-
-@OptIn(ExperimentalForeignApi::class)
-internal actual fun opendir(path: String): OpaqueDirEntry {
-    val dirent = platform.posix.opendir(path)
-    if (dirent != null) return OpaqueDirEntry(dirent)
-    throw IOException("Can't open directory $path: ${strerror(errno)?.toKString() ?: "reason unknown"}")
-}
-
 internal actual fun metadataOrNullImpl(path: Path): FileMetadata? {
     val attributes = NSFileManager.defaultManager().fileAttributesAtPath(path.path, traverseLink = true) ?: return null
     val fileType = attributes[NSFileType] as String

core/linux/src/files/FileSystemLinux.kt

@@ -5,9 +5,12 @@
 
 package kotlinx.io.files
 
-import kotlinx.cinterop.*
-import kotlinx.io.IOException
-import platform.posix.*
+import kotlinx.cinterop.ExperimentalForeignApi
+import kotlinx.cinterop.cstr
+import kotlinx.cinterop.memScoped
+import kotlinx.cinterop.toKString
+import platform.posix.__xpg_basename
+import platform.posix.dirname
 
 @OptIn(ExperimentalForeignApi::class)
 internal actual fun dirnameImpl(path: String): String {
@@ -27,22 +30,3 @@ internal actual fun basenameImpl(path: String): String {
 }
 
 internal actual fun isAbsoluteImpl(path: String): Boolean = path.startsWith('/')
-
-@OptIn(ExperimentalForeignApi::class, ExperimentalStdlibApi::class)
-internal actual class OpaqueDirEntry constructor(private val dir: CPointer<DIR>) : AutoCloseable {
-    actual fun readdir(): String? {
-        val entry = readdir(dir) ?: return null
-        return entry[0].d_name.toKString()
-    }
-
-    override fun close() {
-        closedir(dir)
-    }
-}
-
-@OptIn(ExperimentalForeignApi::class)
-internal actual fun opendir(path: String): OpaqueDirEntry {
-    val dirent = platform.posix.opendir(path)
-    if (dirent != null) return OpaqueDirEntry(dirent)
-    throw IOException("Can't open directory $path: ${strerror(errno)?.toKString() ?: "reason unknown"}")
-}

core/mingw/src/files/FileSystemMingw.kt

@@ -60,23 +60,3 @@ internal actual fun realpathImpl(path: String): String {
         return buffer.toKString()
     }
 }
-
-
-@OptIn(ExperimentalForeignApi::class, ExperimentalStdlibApi::class)
-internal actual class OpaqueDirEntry constructor(private val dir: CPointer<DIR>) : AutoCloseable {
-    actual fun readdir(): String? {
-        val entry = readdir(dir) ?: return null
-        return entry[0].d_name.toKString()
-    }
-
-    override fun close() {
-        closedir(dir)
-    }
-}
-
-@OptIn(ExperimentalForeignApi::class)
-internal actual fun opendir(path: String): OpaqueDirEntry {
-    val dirent = platform.posix.opendir(path)
-    if (dirent != null) return OpaqueDirEntry(dirent)
-    throw IOException("Can't open directory $path: ${strerror(errno)?.toKString() ?: "reason unknown"}")
-}

core/nonAndroid/src/files/FileSystemNonAndroid.kt

@@ -0,0 +1,35 @@
+/*
+ * Copyright 2010-2024 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE.txt file.
+ */
+
+package kotlinx.io.files
+
+import kotlinx.cinterop.CPointer
+import kotlinx.cinterop.ExperimentalForeignApi
+import kotlinx.cinterop.get
+import kotlinx.cinterop.toKString
+import kotlinx.io.IOException
+import platform.posix.DIR
+import platform.posix.closedir
+import platform.posix.errno
+import platform.posix.strerror
+
+@OptIn(ExperimentalForeignApi::class, ExperimentalStdlibApi::class)
+internal actual class OpaqueDirEntry constructor(private val dir: CPointer<DIR>) : AutoCloseable {
+    actual fun readdir(): String? {
+        val entry = platform.posix.readdir(dir) ?: return null
+        return entry[0].d_name.toKString()
+    }
+
+    override fun close() {
+        closedir(dir)
+    }
+}
+
+@OptIn(ExperimentalForeignApi::class)
+internal actual fun opendir(path: String): OpaqueDirEntry {
+    val dirent = platform.posix.opendir(path)
+    if (dirent != null) return OpaqueDirEntry(dirent)
+    throw IOException("Can't open directory $path: ${strerror(errno)?.toKString() ?: "reason unknown"}")
+}