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HADOOP-7348. Change 'addnl' in getmerge util to be a flag '-nl' instead (XieXianshan via harsh)

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git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1225192 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Harsh J 2011-12-28 14:30:19 +00:00
parent a9ffbdd0d7
commit 1e0c51c66e
4 changed files with 15 additions and 13 deletions
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2
hadoop-common-project/hadoop-common/CHANGES.txt
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@ -79,6 +79,8 @@ Trunk (unreleased changes)
HADOOP-7574. Improve FSShell -stat, add user/group elements (XieXianshan via harsh)
HADOOP-7348. Change 'addnl' in getmerge util to be a flag '-nl' instead (XieXianshan via harsh)
BUGS
HADOOP-7851. Configuration.getClasses() never returns the default value.

4
hadoop-common-project/hadoop-common/src/main/docs/src/documentation/content/xdocs/file_system_shell.xml
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@ -260,11 +260,11 @@
<section>
<title> getmerge </title>
<p>
<code>Usage: hdfs dfs -getmerge &lt;src&gt; &lt;localdst&gt; [addnl]</code>
<code>Usage: hdfs dfs -getmerge [-nl] &lt;src&gt; &lt;localdst&gt;</code>
</p>
<p>
Takes a source directory and a destination file as input and concatenates files in src into the destination local file.
Optionally <code>addnl</code> can be set to enable adding a newline character at the end of each file.
Optionally <code>-nl</code> flag can be set to enable adding a newline character at the end of each file during merge.
</p>
</section>

16
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/shell/CopyCommands.java
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@ -45,26 +45,22 @@ public static void registerCommands(CommandFactory factory) {
/** merge multiple files together */
public static class Merge extends FsCommand {
public static final String NAME = "getmerge";
public static final String USAGE = "<src> <localdst> [addnl]";
public static final String USAGE = "[-nl] <src> <localdst>";
public static final String DESCRIPTION =
"Get all the files in the directories that\n" +
"match the source file pattern and merge and sort them to only\n" +
"one file on local fs. <src> is kept.";
"one file on local fs. <src> is kept.\n" +
" -nl Add a newline character at the end of each file.";
protected PathData dst = null;
protected String delimiter = null;
@Override
protected void processOptions(LinkedList<String> args) throws IOException {
CommandFormat cf = new CommandFormat(2, 3);
CommandFormat cf = new CommandFormat(2, 3, "nl");
cf.parse(args);
// TODO: this really should be a -nl option
if ((args.size() > 2) && Boolean.parseBoolean(args.removeLast())) {
delimiter = "\n";
} else {
delimiter = null;
}
delimiter = cf.getOpt("nl") ? "\n" : null;
dst = new PathData(new File(args.removeLast()), getConf());
}
@ -197,4 +193,4 @@ public static class CopyToLocal extends Get {
public static final String USAGE = Get.USAGE;
public static final String DESCRIPTION = "Identical to the -get command.";
}
}
}

6
hadoop-common-project/hadoop-common/src/test/resources/testConf.xml
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@ -449,7 +449,7 @@
<comparators>
<comparator>
<type>RegexpComparator</type>
<expected-output>^-getmerge &lt;src&gt; &lt;localdst&gt; \[addnl\]:( |\t)*Get all the files in the directories that( )*</expected-output>
<expected-output>^-getmerge \[-nl\] &lt;src&gt; &lt;localdst&gt;:( |\t)*Get all the files in the directories that( )*</expected-output>
</comparator>
<comparator>
<type>RegexpComparator</type>
@ -459,6 +459,10 @@
<type>RegexpComparator</type>
<expected-output>^( |\t)*one file on local fs. &lt;src&gt; is kept.( )*</expected-output>
</comparator>
<comparator>
<type>RegexpComparator</type>
<expected-output>^( |\t)*-nl Add a newline character at the end of each file.( )*</expected-output>
</comparator>
</comparators>
</test>