提交 3145b078 编写于 作者: A alanb

6926800: TEST_BUG: java/nio/file/Files/walk_file_tree.sh fails with newer versions of find(1)

Reviewed-by: forax
上级 3e2533e1
......@@ -28,27 +28,33 @@ import java.util.*;
/**
* Invokes Files.walkFileTree to traverse a file tree and prints
* each of the directories and files. The -L option causes symbolic
* links to be followed.
* each of the directories and files. The -follow option causes symbolic
* links to be followed and the -printCycles option will print links
* where the target of the link is an ancestor directory.
*/
public class PrintFileTree {
public static void main(String[] args) throws Exception {
boolean followLinks = false;
Path dir;
if (args[0].equals("-L")) {
followLinks = true;
dir = Paths.get(args[1]);
} else {
dir = Paths.get(args[0]);
boolean printCycles = false;
int i = 0;
while (i < (args.length-1)) {
switch (args[i]) {
case "-follow" : followLinks = true; break;
case "-printCycles" : printCycles = true; break;
default:
throw new RuntimeException(args[i] + " not recognized");
}
i++;
}
Path dir = Paths.get(args[i]);
Set<FileVisitOption> options = new HashSet<FileVisitOption>();
if (followLinks)
options.add(FileVisitOption.FOLLOW_LINKS);
final boolean reportCycles = printCycles;
Files.walkFileTree(dir, options, Integer.MAX_VALUE, new FileVisitor<FileRef>() {
public FileVisitResult preVisitDirectory(FileRef dir) {
System.out.println(dir);
......@@ -59,7 +65,8 @@ public class PrintFileTree {
return FileVisitResult.CONTINUE;
}
public FileVisitResult visitFile(FileRef file, BasicFileAttributes attrs) {
System.out.println(file);
if (!attrs.isDirectory() || reportCycles)
System.out.println(file);
return FileVisitResult.CONTINUE;
}
public FileVisitResult postVisitDirectory(FileRef dir, IOException exc) {
......
......@@ -61,12 +61,20 @@ find "$ROOT" > out2
diff out1 out2
if [ $? != 0 ]; then failures=`expr $failures + 1`; fi
# repeat test following links (use -follow instead of -L
# to allow running on older systems)
$JAVA PrintFileTree -L "$ROOT" > out1
find "$ROOT" -follow > out2
# repeat test following links. Some versions of find(1) output
# cycles (sym links to ancestor directories), other versions do
# not. For that reason we run PrintFileTree with the -printCycles
# option when the output without this option differs to find(1).
find "$ROOT" -follow > out1
$JAVA PrintFileTree -follow "$ROOT" > out2
diff out1 out2
if [ $? != 0 ]; then failures=`expr $failures + 1`; fi
if [ $? != 0 ];
then
# re-run printing cycles to stdout
$JAVA PrintFileTree -follow -printCycles "$ROOT" > out2
diff out1 out2
if [ $? != 0 ]; then failures=`expr $failures + 1`; fi
fi
# test SKIP_SIBLINGS
$JAVA SkipSiblings "$ROOT"
......
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