105 lines
3.4 KiB
Java
105 lines
3.4 KiB
Java
/*
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* This file is part of fabric-loom, licensed under the MIT License (MIT).
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*
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* Copyright (c) 2016-2017 FabricMC
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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package net.fabricmc.loom.util;
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import java.io.File;
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import java.io.IOException;
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import java.net.URI;
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import java.net.URISyntaxException;
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import java.nio.charset.StandardCharsets;
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import java.nio.file.FileSystem;
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import java.nio.file.FileSystemAlreadyExistsException;
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import java.nio.file.FileSystems;
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import java.nio.file.Files;
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import java.nio.file.NoSuchFileException;
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import java.nio.file.Path;
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import java.util.Collections;
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import java.util.Map;
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import java.util.function.Supplier;
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public final class FileSystemUtil {
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public record Delegate(FileSystem fs, boolean owner) implements AutoCloseable, Supplier<FileSystem> {
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public byte[] readAllBytes(String path) throws IOException {
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Path fsPath = get().getPath(path);
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if (Files.exists(fsPath)) {
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return Files.readAllBytes(fsPath);
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} else {
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throw new NoSuchFileException(fsPath.toString());
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}
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}
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public String readString(String path) throws IOException {
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return new String(readAllBytes(path), StandardCharsets.UTF_8);
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}
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@Override
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public void close() throws IOException {
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if (owner) {
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fs.close();
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}
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}
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@Override
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public FileSystem get() {
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return fs;
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}
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}
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private FileSystemUtil() {
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}
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private static final Map<String, String> jfsArgsCreate = Map.of("create", "true");
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private static final Map<String, String> jfsArgsEmpty = Collections.emptyMap();
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public static Delegate getJarFileSystem(File file, boolean create) throws IOException {
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return getJarFileSystem(file.toURI(), create);
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}
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public static Delegate getJarFileSystem(Path path, boolean create) throws IOException {
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return getJarFileSystem(path.toUri(), create);
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}
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public static Delegate getJarFileSystem(Path path) throws IOException {
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return getJarFileSystem(path, false);
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}
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public static Delegate getJarFileSystem(URI uri, boolean create) throws IOException {
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URI jarUri;
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try {
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jarUri = new URI("jar:" + uri.getScheme(), uri.getHost(), uri.getPath(), uri.getFragment());
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} catch (URISyntaxException e) {
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throw new IOException(e);
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}
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try {
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return new Delegate(FileSystems.newFileSystem(jarUri, create ? jfsArgsCreate : jfsArgsEmpty), true);
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} catch (FileSystemAlreadyExistsException e) {
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return new Delegate(FileSystems.getFileSystem(jarUri), false);
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}
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}
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}
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