1 /*
2 * Copyright (c) 2012, 2019, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package jdk.jpackage.internal;
27
28 import java.io.*;
29 import java.net.URL;
30 import java.util.Arrays;
31 import java.nio.channels.FileChannel;
32 import java.nio.file.FileVisitResult;
33 import java.nio.file.Files;
34 import java.nio.file.Path;
35 import java.nio.file.SimpleFileVisitor;
36 import java.nio.file.attribute.BasicFileAttributes;
37 import java.util.ArrayList;
38 import java.util.List;
39
40 /**
41 * IOUtils
42 *
43 * A collection of static utility methods.
44 */
45 public class IOUtils {
46
47 public static void deleteRecursive(File path) throws IOException {
48 if (!path.exists()) {
49 return;
50 }
51 Path directory = path.toPath();
52 Files.walkFileTree(directory, new SimpleFileVisitor<Path>() {
53 @Override
54 public FileVisitResult visitFile(Path file,
55 BasicFileAttributes attr) throws IOException {
56 if (Platform.getPlatform() == Platform.WINDOWS) {
57 Files.setAttribute(file, "dos:readonly", false);
58 }
59 Files.delete(file);
60 return FileVisitResult.CONTINUE;
61 }
62
63 @Override
64 public FileVisitResult preVisitDirectory(Path dir,
65 BasicFileAttributes attr) throws IOException {
66 if (Platform.getPlatform() == Platform.WINDOWS) {
67 Files.setAttribute(dir, "dos:readonly", false);
68 }
69 return FileVisitResult.CONTINUE;
70 }
71
72 @Override
73 public FileVisitResult postVisitDirectory(Path dir, IOException e)
74 throws IOException {
75 Files.delete(dir);
76 return FileVisitResult.CONTINUE;
77 }
78 });
79 }
80
81 public static void copyRecursive(Path src, Path dest) throws IOException {
82 Files.walkFileTree(src, new SimpleFileVisitor<Path>() {
83 @Override
84 public FileVisitResult preVisitDirectory(final Path dir,
85 final BasicFileAttributes attrs) throws IOException {
86 Files.createDirectories(dest.resolve(src.relativize(dir)));
87 return FileVisitResult.CONTINUE;
88 }
89
90 @Override
91 public FileVisitResult visitFile(final Path file,
92 final BasicFileAttributes attrs) throws IOException {
93 Files.copy(file, dest.resolve(src.relativize(file)));
94 return FileVisitResult.CONTINUE;
95 }
96 });
97 }
98
99 public static void copyRecursive(Path src, Path dest,
100 final List<String> excludes) throws IOException {
101 Files.walkFileTree(src, new SimpleFileVisitor<Path>() {
102 @Override
103 public FileVisitResult preVisitDirectory(final Path dir,
104 final BasicFileAttributes attrs) throws IOException {
105 if (excludes.contains(dir.toFile().getName())) {
106 return FileVisitResult.SKIP_SUBTREE;
107 } else {
108 Files.createDirectories(dest.resolve(src.relativize(dir)));
109 return FileVisitResult.CONTINUE;
110 }
111 }
112
113 @Override
114 public FileVisitResult visitFile(final Path file,
115 final BasicFileAttributes attrs) throws IOException {
116 if (!excludes.contains(file.toFile().getName())) {
117 Files.copy(file, dest.resolve(src.relativize(file)));
118 }
119 return FileVisitResult.CONTINUE;
120 }
121 });
122 }
123
124 public static void copyFromURL(URL location, File file) throws IOException {
125 copyFromURL(location, file, false);
126 }
127
128 public static void copyFromURL(URL location, File file, boolean append)
129 throws IOException {
130 if (location == null) {
131 throw new IOException("Missing input resource!");
132 }
133 if (file.exists() && !append) {
134 file.delete();
135 }
136 try (InputStream in = location.openStream();
137 FileOutputStream out = new FileOutputStream(file, append)) {
138
139 byte[] buffer = new byte[1024];
140 int len;
141 while ((len = in.read(buffer)) != -1) {
142 out.write(buffer, 0, len);
143 }
144 }
145 file.setReadOnly();
146 file.setReadable(true, false);
147 }
148
149 public static void copyFile(File sourceFile, File destFile)
150 throws IOException {
151 destFile.getParentFile().mkdirs();
152
153 //recreate the file as existing copy may have weird permissions
154 destFile.delete();
155 destFile.createNewFile();
156
157 try (FileChannel source = new FileInputStream(sourceFile).getChannel();
158 FileChannel destination =
159 new FileOutputStream(destFile).getChannel()) {
160
161 if (destination != null && source != null) {
162 destination.transferFrom(source, 0, source.size());
163 }
164 }
165
166 //preserve executable bit!
167 if (sourceFile.canExecute()) {
168 destFile.setExecutable(true, false);
169 }
170 if (!sourceFile.canWrite()) {
171 destFile.setReadOnly();
172 }
173 destFile.setReadable(true, false);
174 }
175
176 public static long getFolderSize(File folder) {
177 long foldersize = 0;
178
179 File[] children = folder.listFiles();
180 if (children != null) {
181 for (File f : children) {
182 if (f.isDirectory()) {
183 foldersize += getFolderSize(f);
184 } else {
185 foldersize += f.length();
186 }
187 }
188 }
189
190 return foldersize;
191 }
192
193 // run "launcher paramfile" in the directory where paramfile is kept
194 public static void run(String launcher, File paramFile)
195 throws IOException {
196 if (paramFile != null && paramFile.exists()) {
197 ProcessBuilder pb =
198 new ProcessBuilder(launcher, paramFile.getName());
199 pb = pb.directory(paramFile.getParentFile());
200 exec(pb);
201 }
202 }
203
204 public static void exec(ProcessBuilder pb)
205 throws IOException {
206 exec(pb, false, null);
207 }
208
209 public static void exec(ProcessBuilder pb, boolean testForPresenseOnly,
210 PrintStream consumer) throws IOException {
211 pb.redirectErrorStream(true);
212 Log.verbose("Running "
213 + Arrays.toString(pb.command().toArray(new String[0]))
214 + (pb.directory() != null ? (" in " + pb.directory()) : ""));
215 Process p = pb.start();
216 InputStreamReader isr = new InputStreamReader(p.getInputStream());
217 BufferedReader br = new BufferedReader(isr);
218 String lineRead;
219 while ((lineRead = br.readLine()) != null) {
220 if (consumer != null) {
221 consumer.print(lineRead + '\n');
222 } else {
223 Log.verbose(lineRead);
224 }
225 }
226 try {
227 int ret = p.waitFor();
228 if (ret != 0 && !(testForPresenseOnly && ret != 127)) {
229 throw new IOException("Exec failed with code "
230 + ret + " command ["
231 + Arrays.toString(pb.command().toArray(new String[0]))
232 + " in " + (pb.directory() != null ?
233 pb.directory().getAbsolutePath() :
234 "unspecified directory"));
235 }
236 } catch (InterruptedException ex) {
237 }
238 }
239
240 public static int getProcessOutput(List<String> result, String... args)
241 throws IOException, InterruptedException {
242
243 ProcessBuilder pb = new ProcessBuilder(args);
244
245 final Process p = pb.start();
246
247 List<String> list = new ArrayList<>();
248
249 final BufferedReader in =
250 new BufferedReader(new InputStreamReader(p.getInputStream()));
251 final BufferedReader err =
252 new BufferedReader(new InputStreamReader(p.getErrorStream()));
253
254 Thread t = new Thread(() -> {
255 try {
256 String line;
257 while ((line = in.readLine()) != null) {
258 list.add(line);
259 }
260 } catch (IOException ioe) {
261 Log.verbose(ioe);
262 }
263
264 try {
265 String line;
266 while ((line = err.readLine()) != null) {
267 Log.error(line);
268 }
269 } catch (IOException ioe) {
270 Log.verbose(ioe);
271 }
272 });
273 t.setDaemon(true);
274 t.start();
275
276 int ret = p.waitFor();
277
278 result.clear();
279 result.addAll(list);
280
281 return ret;
282 }
283
284 static void writableOutputDir(Path outdir) throws PackagerException {
285 File file = outdir.toFile();
286
287 if (!file.isDirectory() && !file.mkdirs()) {
288 throw new PackagerException("error.cannot-create-output-dir",
289 file.getAbsolutePath());
290 }
291 if (!file.canWrite()) {
292 throw new PackagerException("error.cannot-write-to-output-dir",
293 file.getAbsolutePath());
294 }
295 }
296 }