| package org.apache.maven.wagon.providers.ssh; |
| |
| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| import org.apache.maven.wagon.TransferFailedException; |
| |
| import java.io.BufferedReader; |
| import java.io.IOException; |
| import java.io.StringReader; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| |
| /** |
| * Parser for the output of <code>ls</code> command from any ssh server on any OS. |
| * |
| * @author <a href="mailto:joakim@erdfelt.com">Joakim Erdfelt</a> |
| * |
| */ |
| public class LSParser |
| { |
| /** |
| * output samples see LSParserTest: |
| * <ul></ul> |
| * <li>osx "-rw-r--r-- 1 joakim joakim 1194 Dec 11 09:25 pom.xml"</li> |
| * <li>osx fr : "-rw-r--r-- 1 olamy staff 19 21 sep 00:34 more-resources.dat"</li> |
| * <li>cygwin : "drwxr-xr-x+ 5 joakim None 0 Dec 11 10:30 pom.xml"</li> |
| * <li>linux : "-rw-r--r-- 1 joakim joakim 1194 2006-12-11 09:25 pom.xml"</li> |
| * </ul> |
| */ |
| private static final Pattern PATTERN = Pattern.compile( ".+\\s+[0-9]+\\s+.+\\s+.+\\s+[0-9]+\\s+" |
| //2006-12-11 |
| + "([0-9]{4}-[0-9]{2}-[0-9]{2}" |
| // Dec 11 |
| + "|.+\\s+[0-9]+" |
| // 21 sep |
| + "|.+\\s+.+)" |
| // 09:25 pom.xml |
| + "\\s+[0-9:]+\\s+(.+?)" ); |
| |
| /** |
| * Parse a raw "ls -FlA", and obtain the list of files. |
| * |
| * @param rawLS the raw LS to parse. |
| * @return the list of files found. |
| * @throws TransferFailedException |
| * @todo use ls -1a and do away with the method all together |
| */ |
| public List<String> parseFiles( String rawLS ) |
| throws TransferFailedException |
| { |
| List<String> ret = new ArrayList<String>(); |
| try |
| { |
| BufferedReader br = new BufferedReader( new StringReader( rawLS ) ); |
| |
| String line = br.readLine(); |
| |
| while ( line != null ) |
| { |
| line = line.trim(); |
| |
| Matcher m = PATTERN.matcher( line ); |
| if ( m.matches() ) |
| { |
| ret.add( m.group( 2 ) ); |
| } |
| line = br.readLine(); |
| } |
| } |
| catch ( IOException e ) |
| { |
| throw new TransferFailedException( "Error parsing file listing.", e ); |
| } |
| |
| return ret; |
| } |
| } |