HADOOP-8934. Shell command ls should include sort options (Jonathan Allen via aw)
This commit is contained in:
Allen Wittenauer
parent
ab934e8594
commit
30b797ee9d
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@ -24,6 +24,9 @@ Trunk (Unreleased)
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HADOOP-11485. Pluggable shell integration (aw)
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HADOOP-8934. Shell command ls should include sort options (Jonathan Allen
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via aw)
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IMPROVEMENTS
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HADOOP-8017. Configure hadoop-main pom to get rid of M2E plugin execution
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@ -20,6 +20,8 @@ package org.apache.hadoop.fs.shell;
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import java.io.IOException;
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import java.text.SimpleDateFormat;
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import java.util.Arrays;
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import java.util.Comparator;
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import java.util.Date;
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import java.util.LinkedList;
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import org.apache.hadoop.util.StringUtils;
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@ -41,28 +43,58 @@ class Ls extends FsCommand {
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factory.addClass(Lsr.class, "-lsr");
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}
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private static final String OPTION_DIRECTORY = "d";
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private static final String OPTION_HUMAN = "h";
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private static final String OPTION_RECURSIVE = "R";
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private static final String OPTION_REVERSE = "r";
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private static final String OPTION_MTIME = "t";
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private static final String OPTION_ATIME = "u";
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private static final String OPTION_SIZE = "S";
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public static final String NAME = "ls";
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public static final String USAGE = "[-d] [-h] [-R] [<path> ...]";
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public static final String USAGE = "[-" + OPTION_DIRECTORY + "] [-"
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+ OPTION_HUMAN + "] " + "[-" + OPTION_RECURSIVE + "] [-" + OPTION_MTIME
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+ "] [-" + OPTION_SIZE + "] [-" + OPTION_REVERSE + "] " + "[-"
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+ OPTION_ATIME + "] [<path> ...]";
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public static final String DESCRIPTION =
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"List the contents that match the specified file pattern. If " +
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"path is not specified, the contents of /user/<currentUser> " +
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"will be listed. Directory entries are of the form:\n" +
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"will be listed. For a directory a list of its direct children " +
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"is returned (unless -" + OPTION_DIRECTORY +
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" option is specified).\n\n" +
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"Directory entries are of the form:\n" +
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"\tpermissions - userId groupId sizeOfDirectory(in bytes) modificationDate(yyyy-MM-dd HH:mm) directoryName\n\n" +
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"and file entries are of the form:\n" +
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"\tpermissions numberOfReplicas userId groupId sizeOfFile(in bytes) modificationDate(yyyy-MM-dd HH:mm) fileName\n" +
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"-d: Directories are listed as plain files.\n" +
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"-h: Formats the sizes of files in a human-readable fashion " +
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"\tpermissions numberOfReplicas userId groupId sizeOfFile(in bytes) modificationDate(yyyy-MM-dd HH:mm) fileName\n\n" +
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" -" + OPTION_DIRECTORY +
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" Directories are listed as plain files.\n" +
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" -" + OPTION_HUMAN +
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" Formats the sizes of files in a human-readable fashion\n" +
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" rather than a number of bytes.\n" +
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"-R: Recursively list the contents of directories.";
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" -" + OPTION_RECURSIVE +
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" Recursively list the contents of directories.\n" +
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" -" + OPTION_MTIME +
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" Sort files by modification time (most recent first).\n" +
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" -" + OPTION_SIZE +
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" Sort files by size.\n" +
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" -" + OPTION_REVERSE +
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" Reverse the order of the sort.\n" +
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" -" + OPTION_ATIME +
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" Use time of last access instead of modification for\n" +
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" display and sorting.";
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protected final SimpleDateFormat dateFormat =
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protected static final SimpleDateFormat dateFormat =
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new SimpleDateFormat("yyyy-MM-dd HH:mm");
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protected int maxRepl = 3, maxLen = 10, maxOwner = 0, maxGroup = 0;
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protected String lineFormat;
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protected boolean dirRecurse;
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private boolean orderReverse;
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private boolean orderTime;
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private boolean orderSize;
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private boolean useAtime;
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private Comparator<PathData> orderComparator;
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protected boolean humanReadable = false;
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@ -75,12 +107,74 @@ class Ls extends FsCommand {
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@Override
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protected void processOptions(LinkedList<String> args)
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throws IOException {
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CommandFormat cf = new CommandFormat(0, Integer.MAX_VALUE, "d", "h", "R");
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CommandFormat cf = new CommandFormat(0, Integer.MAX_VALUE,
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OPTION_DIRECTORY, OPTION_HUMAN, OPTION_RECURSIVE, OPTION_REVERSE,
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OPTION_MTIME, OPTION_SIZE, OPTION_ATIME);
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cf.parse(args);
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dirRecurse = !cf.getOpt("d");
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setRecursive(cf.getOpt("R") && dirRecurse);
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humanReadable = cf.getOpt("h");
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dirRecurse = !cf.getOpt(OPTION_DIRECTORY);
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setRecursive(cf.getOpt(OPTION_RECURSIVE) && dirRecurse);
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humanReadable = cf.getOpt(OPTION_HUMAN);
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orderReverse = cf.getOpt(OPTION_REVERSE);
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orderTime = cf.getOpt(OPTION_MTIME);
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orderSize = !orderTime && cf.getOpt(OPTION_SIZE);
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useAtime = cf.getOpt(OPTION_ATIME);
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if (args.isEmpty()) args.add(Path.CUR_DIR);
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initialiseOrderComparator();
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}
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/**
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* Should the contents of the directory be shown or just the directory?
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* @return true if directory contents, false if just directory
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*/
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@InterfaceAudience.Private
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boolean isDirRecurse() {
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return this.dirRecurse;
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}
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/**
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* Should file sizes be returned in human readable format rather than bytes?
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* @return true is human readable, false if bytes
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*/
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@InterfaceAudience.Private
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boolean isHumanReadable() {
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return this.humanReadable;
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}
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/**
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* Should directory contents be displayed in reverse order
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* @return true reverse order, false default order
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*/
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@InterfaceAudience.Private
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boolean isOrderReverse() {
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return this.orderReverse;
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}
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/**
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* Should directory contents be displayed in mtime order.
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* @return true mtime order, false default order
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*/
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@InterfaceAudience.Private
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boolean isOrderTime() {
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return this.orderTime;
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}
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/**
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* Should directory contents be displayed in size order.
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* @return true size order, false default order
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*/
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@InterfaceAudience.Private
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boolean isOrderSize() {
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return this.orderSize;
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}
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/**
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* Should access time be used rather than modification time.
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* @return true use access time, false use modification time
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*/
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@InterfaceAudience.Private
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boolean isUseAtime() {
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return this.useAtime;
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}
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@Override
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@ -98,6 +192,7 @@ class Ls extends FsCommand {
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throws IOException {
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if (parent != null && !isRecursive() && items.length != 0) {
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out.println("Found " + items.length + " items");
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Arrays.sort(items, getOrderComparator());
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}
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adjustColumnWidths(items);
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super.processPaths(parent, items);
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@ -113,9 +208,10 @@ class Ls extends FsCommand {
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stat.getOwner(),
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stat.getGroup(),
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formatSize(stat.getLen()),
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dateFormat.format(new Date(stat.getModificationTime())),
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item
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);
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dateFormat.format(new Date(isUseAtime()
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? stat.getAccessTime()
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: stat.getModificationTime())),
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item);
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out.println(line);
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}
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@ -149,6 +245,49 @@ class Ls extends FsCommand {
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return Math.max(n, (value != null) ? String.valueOf(value).length() : 0);
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}
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/**
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* Get the comparator to be used for sorting files.
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* @return comparator
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*/
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private Comparator<PathData> getOrderComparator() {
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return this.orderComparator;
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}
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/**
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* Initialise the comparator to be used for sorting files. If multiple options
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* are selected then the order is chosen in the following precedence: -
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* Modification time (or access time if requested) - File size - File name
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*/
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private void initialiseOrderComparator() {
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if (isOrderTime()) {
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// mtime is ordered latest date first in line with the unix ls -t command
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this.orderComparator = new Comparator<PathData>() {
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public int compare(PathData o1, PathData o2) {
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Long o1Time = (isUseAtime() ? o1.stat.getAccessTime()
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: o1.stat.getModificationTime());
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Long o2Time = (isUseAtime() ? o2.stat.getAccessTime()
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: o2.stat.getModificationTime());
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return o2Time.compareTo(o1Time) * (isOrderReverse() ? -1 : 1);
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}
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};
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} else if (isOrderSize()) {
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// size is ordered largest first in line with the unix ls -S command
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this.orderComparator = new Comparator<PathData>() {
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public int compare(PathData o1, PathData o2) {
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Long o1Length = o1.stat.getLen();
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Long o2Length = o2.stat.getLen();
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return o2Length.compareTo(o1Length) * (isOrderReverse() ? -1 : 1);
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}
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};
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} else {
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this.orderComparator = new Comparator<PathData>() {
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public int compare(PathData o1, PathData o2) {
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return o1.compareTo(o2) * (isOrderReverse() ? -1 : 1);
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}
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};
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}
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}
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/**
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* Get a recursive listing of all files in that match the file patterns.
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* Same as "-ls -R"
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@ -406,14 +406,25 @@ bin/hadoop fs <args>
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* ls
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Usage: <<<hadoop fs -ls [-R] <args> >>>
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Usage: <<<hadoop fs -ls [-d] [-h] [-R] [-t] [-S] [-r] [-u] <args> >>>
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Options:
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* The -R option will return stat recursively through the directory
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structure.
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* -d: Directories are listed as plain files.
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For a file returns stat on the file with the following format:
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* -h: Format file sizes in a human-readable fashion (eg 64.0m instead of 67108864).
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* -R: Recursively list subdirectories encountered.
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* -t: Sort output by modification time (most recent first).
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* -S: Sort output by file size.
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* -r: Reverse the sort order.
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* -u: Use access time rather than modification time for display and sorting.
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For a file ls returns stat on the file with the following format:
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+---+
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permissions number_of_replicas userid groupid filesize modification_date modification_time filename
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@ -425,6 +436,9 @@ permissions number_of_replicas userid groupid filesize modification_date modific
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permissions userid groupid modification_date modification_time dirname
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+---+
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Files within a directory are order by filename by default.
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Example:
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* <<<hadoop fs -ls /user/hadoop/file1>>>
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@ -54,7 +54,7 @@
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<comparators>
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<comparator>
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<type>RegexpComparator</type>
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<expected-output>^-ls \[-d\] \[-h\] \[-R\] \[<path> \.\.\.\] :( |\t)*</expected-output>
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<expected-output>^-ls \[-d\] \[-h\] \[-R\] \[-t\] \[-S\] \[-r\] \[-u\] \[<path> \.\.\.\] :( |\t)*</expected-output>
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</comparator>
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<comparator>
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<type>RegexpComparator</type>
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@ -62,11 +62,15 @@
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</comparator>
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<comparator>
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<type>RegexpComparator</type>
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<expected-output>^\s*specified, the contents of /user/<currentUser> will be listed. Directory entries( )*</expected-output>
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<expected-output>^\s*specified, the contents of /user/<currentUser> will be listed. For a directory a( )*</expected-output>
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</comparator>
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<comparator>
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<type>RegexpComparator</type>
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<expected-output>^\s*are of the form:( )*</expected-output>
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<expected-output>^( |\t)*list of its direct children is returned \(unless -d option is specified\).*</expected-output>
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</comparator>
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<comparator>
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<type>RegexpComparator</type>
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<expected-output>^( |\t)*Directory entries are of the form:( )*</expected-output>
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</comparator>
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<comparator>
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<type>RegexpComparator</type>
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@ -94,16 +98,36 @@
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</comparator>
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<comparator>
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<type>RegexpComparator</type>
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<expected-output>^\s*-h\s+Formats the sizes of files in a human-readable fashion rather than a number( )*</expected-output>
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<expected-output>^\s*-h\s+Formats the sizes of files in a human-readable fashion( )*</expected-output>
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</comparator>
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<comparator>
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<type>RegexpComparator</type>
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<expected-output>^\s*of bytes\.( )*</expected-output>
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<expected-output>^\s*rather than a number of bytes\.( )*</expected-output>
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</comparator>
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<comparator>
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<type>RegexpComparator</type>
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<expected-output>^\s*-R\s+Recursively list the contents of directories\.( )*</expected-output>
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</comparator>
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<comparator>
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<type>RegexpComparator</type>
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<expected-output>^( |\t)*-t\s+Sort files by modification time \(most recent first\)\.</expected-output>
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</comparator>
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<comparator>
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<type>RegexpComparator</type>
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<expected-output>^( |\t)*-S\s+Sort files by size\.</expected-output>
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</comparator>
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<comparator>
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<type>RegexpComparator</type>
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<expected-output>^( |\t)*-r\s+Reverse the order of the sort\.</expected-output>
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</comparator>
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<comparator>
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<type>RegexpComparator</type>
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<expected-output>^( |\t)*-u\s+Use time of last access instead of modification for</expected-output>
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</comparator>
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<comparator>
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<type>RegexpComparator</type>
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<expected-output>^( |\t)*display and sorting\.</expected-output>
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</comparator>
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</comparators>
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</test>
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@ -1046,6 +1046,154 @@
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</comparators>
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</test>
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<test> <!-- TESTED -->
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<description>ls: files sorted in default order</description>
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<test-commands>
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<command>-fs NAMENODE -mkdir /dir</command>
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<command>-fs NAMENODE -touchz /dir/file2 /dir/file1 /dir/file3</command>
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<command>-fs NAMENODE -ls /dir</command>
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</test-commands>
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<cleanup-commands>
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<command>-fs NAMENODE -rm -r /dir</command>
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</cleanup-commands>
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<comparators>
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<comparator>
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<type>RegexpAcrossOutputComparator</type>
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<expected-output>Found 3 items
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-rw-r--r--( )*1( )*[a-zA-z0-9]*( )*supergroup( )*0( )*[0-9]{4,}-[0-9]{2,}-[0-9]{2,} [0-9]{2,}:[0-9]{2,}( )*/dir/file1
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-rw-r--r--( )*1( )*[a-zA-z0-9]*( )*supergroup( )*0( )*[0-9]{4,}-[0-9]{2,}-[0-9]{2,} [0-9]{2,}:[0-9]{2,}( )*/dir/file2
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-rw-r--r--( )*1( )*[a-zA-z0-9]*( )*supergroup( )*0( )*[0-9]{4,}-[0-9]{2,}-[0-9]{2,} [0-9]{2,}:[0-9]{2,}( )*/dir/file3</expected-output>
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</comparator>
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</comparators>
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</test>
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<test> <!-- TESTED -->
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<description>ls: files sorted in reverse default order</description>
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<test-commands>
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<command>-fs NAMENODE -mkdir /dir</command>
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<command>-fs NAMENODE -touchz /dir/file2 /dir/file1 /dir/file3</command>
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<command>-fs NAMENODE -ls -r /dir</command>
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</test-commands>
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<cleanup-commands>
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<command>-fs NAMENODE -rm -r /dir</command>
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</cleanup-commands>
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<comparators>
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<comparator>
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<type>RegexpAcrossOutputComparator</type>
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<expected-output>Found 3 items
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-rw-r--r--( )*1( )*[a-zA-z0-9]*( )*supergroup( )*0( )*[0-9]{4,}-[0-9]{2,}-[0-9]{2,} [0-9]{2,}:[0-9]{2,}( )*/dir/file3
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-rw-r--r--( )*1( )*[a-zA-z0-9]*( )*supergroup( )*0( )*[0-9]{4,}-[0-9]{2,}-[0-9]{2,} [0-9]{2,}:[0-9]{2,}( )*/dir/file2
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-rw-r--r--( )*1( )*[a-zA-z0-9]*( )*supergroup( )*0( )*[0-9]{4,}-[0-9]{2,}-[0-9]{2,} [0-9]{2,}:[0-9]{2,}( )*/dir/file1</expected-output>
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</comparator>
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</comparators>
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</test>
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<test> <!-- TESTED -->
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<description>ls: files sorted in size order</description>
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<test-commands>
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<command>-fs NAMENODE -mkdir /dir</command>
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<command>-fs NAMENODE -put CLITEST_DATA/data30bytes /dir/data30bytes</command>
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<command>-fs NAMENODE -put CLITEST_DATA/data15bytes /dir/data15bytes</command>
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<command>-fs NAMENODE -put CLITEST_DATA/data120bytes /dir/data120bytes</command>
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<command>-fs NAMENODE -put CLITEST_DATA/data60bytes /dir/data60bytes</command>
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<command>-fs NAMENODE -ls -S /dir</command>
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</test-commands>
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<cleanup-commands>
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<command>-fs NAMENODE -rm -r /dir</command>
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</cleanup-commands>
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<comparators>
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<comparator>
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<type>RegexpAcrossOutputComparator</type>
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<expected-output>Found 4 items
|
||||
-rw-r--r--( )*1( )*[a-zA-z0-9]*( )*supergroup( )*120( )*[0-9]{4,}-[0-9]{2,}-[0-9]{2,} [0-9]{2,}:[0-9]{2,}( )*/dir/data120bytes
|
||||
-rw-r--r--( )*1( )*[a-zA-z0-9]*( )*supergroup( )*60( )*[0-9]{4,}-[0-9]{2,}-[0-9]{2,} [0-9]{2,}:[0-9]{2,}( )*/dir/data60bytes
|
||||
-rw-r--r--( )*1( )*[a-zA-z0-9]*( )*supergroup( )*30( )*[0-9]{4,}-[0-9]{2,}-[0-9]{2,} [0-9]{2,}:[0-9]{2,}( )*/dir/data30bytes
|
||||
-rw-r--r--( )*1( )*[a-zA-z0-9]*( )*supergroup( )*15( )*[0-9]{4,}-[0-9]{2,}-[0-9]{2,} [0-9]{2,}:[0-9]{2,}( )*/dir/data15bytes</expected-output>
|
||||
</comparator>
|
||||
</comparators>
|
||||
</test>
|
||||
|
||||
<test> <!-- TESTED -->
|
||||
<description>ls: files sorted in reverse size order</description>
|
||||
<test-commands>
|
||||
<command>-fs NAMENODE -mkdir /dir</command>
|
||||
<command>-fs NAMENODE -put CLITEST_DATA/data30bytes /dir/data30bytes</command>
|
||||
<command>-fs NAMENODE -put CLITEST_DATA/data15bytes /dir/data15bytes</command>
|
||||
<command>-fs NAMENODE -put CLITEST_DATA/data120bytes /dir/data120bytes</command>
|
||||
<command>-fs NAMENODE -put CLITEST_DATA/data60bytes /dir/data60bytes</command>
|
||||
<command>-fs NAMENODE -ls -S -r /dir</command>
|
||||
</test-commands>
|
||||
<cleanup-commands>
|
||||
<command>-fs NAMENODE -rm -r /dir</command>
|
||||
</cleanup-commands>
|
||||
<comparators>
|
||||
<comparator>
|
||||
<type>RegexpAcrossOutputComparator</type>
|
||||
<expected-output>Found 4 items
|
||||
-rw-r--r--( )*1( )*[a-zA-z0-9]*( )*supergroup( )*15( )*[0-9]{4,}-[0-9]{2,}-[0-9]{2,} [0-9]{2,}:[0-9]{2,}( )*/dir/data15bytes
|
||||
-rw-r--r--( )*1( )*[a-zA-z0-9]*( )*supergroup( )*30( )*[0-9]{4,}-[0-9]{2,}-[0-9]{2,} [0-9]{2,}:[0-9]{2,}( )*/dir/data30bytes
|
||||
-rw-r--r--( )*1( )*[a-zA-z0-9]*( )*supergroup( )*60( )*[0-9]{4,}-[0-9]{2,}-[0-9]{2,} [0-9]{2,}:[0-9]{2,}( )*/dir/data60bytes
|
||||
-rw-r--r--( )*1( )*[a-zA-z0-9]*( )*supergroup( )*120( )*[0-9]{4,}-[0-9]{2,}-[0-9]{2,} [0-9]{2,}:[0-9]{2,}( )*/dir/data120bytes</expected-output>
|
||||
</comparator>
|
||||
</comparators>
|
||||
</test>
|
||||
|
||||
<test> <!-- TESTED -->
|
||||
<description>ls: files sorted in modification order</description>
|
||||
<!-- this test assumes that the files take > 1ms each to create -->
|
||||
<test-commands>
|
||||
<command>-fs NAMENODE -mkdir /dir</command>
|
||||
<command>-fs NAMENODE -touchz /dir/first</command>
|
||||
<command>-fs NAMENODE -touchz /dir/second</command>
|
||||
<command>-fs NAMENODE -touchz /dir/third</command>
|
||||
<command>-fs NAMENODE -touchz /dir/fourth</command>
|
||||
<command>-fs NAMENODE -touchz /dir/fifth</command>
|
||||
<command>-fs NAMENODE -ls -t /dir</command>
|
||||
</test-commands>
|
||||
<cleanup-commands>
|
||||
<command>-fs NAMENODE -rm -r /dir</command>
|
||||
</cleanup-commands>
|
||||
<comparators>
|
||||
<comparator>
|
||||
<type>RegexpAcrossOutputComparator</type>
|
||||
<expected-output>Found 5 items
|
||||
-rw-r--r--( )*1( )*[a-zA-z0-9]*( )*supergroup( )*0( )*[0-9]{4,}-[0-9]{2,}-[0-9]{2,} [0-9]{2,}:[0-9]{2,}( )*/dir/fifth
|
||||
-rw-r--r--( )*1( )*[a-zA-z0-9]*( )*supergroup( )*0( )*[0-9]{4,}-[0-9]{2,}-[0-9]{2,} [0-9]{2,}:[0-9]{2,}( )*/dir/fourth
|
||||
-rw-r--r--( )*1( )*[a-zA-z0-9]*( )*supergroup( )*0( )*[0-9]{4,}-[0-9]{2,}-[0-9]{2,} [0-9]{2,}:[0-9]{2,}( )*/dir/third
|
||||
-rw-r--r--( )*1( )*[a-zA-z0-9]*( )*supergroup( )*0( )*[0-9]{4,}-[0-9]{2,}-[0-9]{2,} [0-9]{2,}:[0-9]{2,}( )*/dir/second
|
||||
-rw-r--r--( )*1( )*[a-zA-z0-9]*( )*supergroup( )*0( )*[0-9]{4,}-[0-9]{2,}-[0-9]{2,} [0-9]{2,}:[0-9]{2,}( )*/dir/first</expected-output>
|
||||
</comparator>
|
||||
</comparators>
|
||||
</test>
|
||||
|
||||
<test> <!-- TESTED -->
|
||||
<description>ls: files sorted in reverse modification order</description>
|
||||
<!-- this test assumes that the files take > 1ms each to create -->
|
||||
<test-commands>
|
||||
<command>-fs NAMENODE -mkdir /dir</command>
|
||||
<command>-fs NAMENODE -touchz /dir/first</command>
|
||||
<command>-fs NAMENODE -touchz /dir/second</command>
|
||||
<command>-fs NAMENODE -touchz /dir/third</command>
|
||||
<command>-fs NAMENODE -touchz /dir/fourth</command>
|
||||
<command>-fs NAMENODE -touchz /dir/fifth</command>
|
||||
<command>-fs NAMENODE -ls -t -r /dir</command>
|
||||
</test-commands>
|
||||
<cleanup-commands>
|
||||
<command>-fs NAMENODE -rm -r /dir</command>
|
||||
</cleanup-commands>
|
||||
<comparators>
|
||||
<comparator>
|
||||
<type>RegexpAcrossOutputComparator</type>
|
||||
<expected-output>Found 5 items
|
||||
-rw-r--r--( )*1( )*[a-zA-z0-9]*( )*supergroup( )*0( )*[0-9]{4,}-[0-9]{2,}-[0-9]{2,} [0-9]{2,}:[0-9]{2,}( )*/dir/first
|
||||
-rw-r--r--( )*1( )*[a-zA-z0-9]*( )*supergroup( )*0( )*[0-9]{4,}-[0-9]{2,}-[0-9]{2,} [0-9]{2,}:[0-9]{2,}( )*/dir/second
|
||||
-rw-r--r--( )*1( )*[a-zA-z0-9]*( )*supergroup( )*0( )*[0-9]{4,}-[0-9]{2,}-[0-9]{2,} [0-9]{2,}:[0-9]{2,}( )*/dir/third
|
||||
-rw-r--r--( )*1( )*[a-zA-z0-9]*( )*supergroup( )*0( )*[0-9]{4,}-[0-9]{2,}-[0-9]{2,} [0-9]{2,}:[0-9]{2,}( )*/dir/fourth
|
||||
-rw-r--r--( )*1( )*[a-zA-z0-9]*( )*supergroup( )*0( )*[0-9]{4,}-[0-9]{2,}-[0-9]{2,} [0-9]{2,}:[0-9]{2,}( )*/dir/fifth</expected-output>
|
||||
</comparator>
|
||||
</comparators>
|
||||
</test>
|
||||
|
||||
<test> <!-- TESTED -->
|
||||
<description>rm: Test for quoted globbing </description>
|
||||
<windows>false</windows>
|
||||
|
|
|
|||
Loading…
Reference in New Issue