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package org.jetbrains.dokka.base.renderers
import org.jetbrains.dokka.plugability.DokkaContext
import java.io.File
import java.io.IOException
import java.net.URI
import java.nio.file.*
class FileWriter(val context: DokkaContext): OutputWriter {
private val createdFiles: MutableSet<String> = mutableSetOf()
private val jarUriPrefix = "jar:file:"
private val root = context.configuration.outputDir
override fun write(path: String, text: String, ext: String) {
if (createdFiles.contains(path)) {
context.logger.error("An attempt to write ${root}/$path several times!")
return
}
createdFiles.add(path)
try {
val dir = Paths.get(root, path.dropLastWhile { it != '/' }).toFile()
dir.mkdirsOrFail()
Files.write(Paths.get(root, "$path$ext"), text.lines())
} catch (e: Throwable) {
context.logger.error("Failed to write $this. ${e.message}")
e.printStackTrace()
}
}
override fun writeResources(pathFrom: String, pathTo: String) =
if (javaClass.getResource(pathFrom).toURI().toString().startsWith(jarUriPrefix)) {
copyFromJar(pathFrom, pathTo)
} else {
copyFromDirectory(pathFrom, pathTo)
}
private fun copyFromDirectory(pathFrom: String, pathTo: String) {
val dest = Paths.get(root, pathTo).toFile()
val uri = javaClass.getResource(pathFrom).toURI()
File(uri).copyRecursively(dest, true)
}
private fun copyFromJar(pathFrom: String, pathTo: String) {
val rebase = fun(path: String) =
"$pathTo/${path.removePrefix(pathFrom)}"
val dest = Paths.get(root, pathTo).toFile()
dest.mkdirsOrFail()
val uri = javaClass.getResource(pathFrom).toURI()
val fs = getFileSystemForURI(uri)
val path = fs.getPath(pathFrom)
for (file in Files.walk(path).iterator()) {
if (Files.isDirectory(file)) {
val dirPath = file.toAbsolutePath().toString()
Paths.get(root, rebase(dirPath)).toFile().mkdirsOrFail()
} else {
val filePath = file.toAbsolutePath().toString()
Paths.get(root, rebase(filePath)).toFile().writeBytes(
javaClass.getResourceAsStream(filePath).readBytes()
)
}
}
}
private fun File.mkdirsOrFail() {
if (!mkdirs() && !exists()) {
throw IOException("Failed to create directory $this")
}
}
private fun getFileSystemForURI(uri: URI): FileSystem =
try {
FileSystems.newFileSystem(uri, emptyMap<String, Any>())
} catch (e: FileSystemAlreadyExistsException) {
FileSystems.getFileSystem(uri)
}
}
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