org.codehaus.mojo.truezip.util.TrueZipDirectoryScanner Maven / Gradle / Ivy
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package org.codehaus.mojo.truezip.util;
/*
* The Apache Software License, Version 1.1
*
* Copyright (c) 2000-2003 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.codehaus.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "Ant" and "Apache Software
* Foundation" must not be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact [email protected].
*
* 5. Products derived from this software may not be called "Apache"
* nor may "Apache" appear in their names without prior written
* permission of the Apache Group.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
*
* These criteria consist of selectors and patterns which have been specified.
* With the selectors you can select which files you want to have included.
* Files which are not selected are excluded. With patterns you can include
* or exclude files based on their filename.
*
* The idea is simple. A given directory is recursively scanned for all files
* and directories. Each file/directory is matched against a set of selectors,
* including special support for matching against filenames with include and
* and exclude patterns. Only files/directories which match at least one
* pattern of the include pattern list or other file selector, and don't match
* any pattern of the exclude pattern list or fail to match against a required
* selector will be placed in the list of files/directories found.
*
* When no list of include patterns is supplied, "**" will be used, which
* means that everything will be matched. When no list of exclude patterns is
* supplied, an empty list is used, such that nothing will be excluded. When
* no selectors are supplied, none are applied.
*
* The filename pattern matching is done as follows:
* The name to be matched is split up in path segments. A path segment is the
* name of a directory or file, which is bounded by
* File.separator ('/' under UNIX, '\' under Windows).
* For example, "abc/def/ghi/xyz.java" is split up in the segments "abc",
* "def","ghi" and "xyz.java".
* The same is done for the pattern against which should be matched.
*
* The segments of the name and the pattern are then matched against each
* other. When '**' is used for a path segment in the pattern, it matches
* zero or more path segments of the name.
*
* There is a special case regarding the use of File.separators
* at the beginning of the pattern and the string to match:
* When a pattern starts with a File.separator, the string
* to match must also start with a File.separator.
* When a pattern does not start with a File.separator, the
* string to match may not start with a File.separator.
* When one of these rules is not obeyed, the string will not
* match.
*
* When a name path segment is matched against a pattern path segment, the
* following special characters can be used:
* '*' matches zero or more characters
* '?' matches one character.
*
* Examples:
*
* "**\*.class" matches all .class files/dirs in a directory tree.
*
* "test\a??.java" matches all files/dirs which start with an 'a', then two
* more characters and then ".java", in a directory called test.
*
* "**" matches everything in a directory tree.
*
* "**\test\**\XYZ*" matches all files/dirs which start with "XYZ" and where
* there is a parent directory called test (e.g. "abc\test\def\ghi\XYZ123").
*
* Case sensitivity may be turned off if necessary. By default, it is
* turned on.
*
* Example of usage:
*
* String[] includes = {"**\\*.class"};
* String[] excludes = {"modules\\*\\**"};
* ds.setIncludes(includes);
* ds.setExcludes(excludes);
* ds.setBasedir(new File("test"));
* ds.setCaseSensitive(true);
* ds.scan();
*
* System.out.println("FILES:");
* String[] files = ds.getIncludedFiles();
* for (int i = 0; i < files.length; i++) {
* System.out.println(files[i]);
* }
*
* This will scan a directory called test for .class files, but excludes all
* files in all proper subdirectories of a directory called "modules"
*
* @author Arnout J. Kuiper
* [email protected]
* @author Magesh Umasankar
* @author Bruce Atherton
* @author Antoine Levy-Lambert
*/
public class TrueZipDirectoryScanner
{
/**
* Patterns which should be excluded by default.
*
* @see #addDefaultExcludes()
*/
public static final String[] DEFAULTEXCLUDES = {
// Miscellaneous typical temporary files
"**/*~",
"**/#*#",
"**/.#*",
"**/%*%",
"**/._*",
// CVS
"**/CVS",
"**/CVS/**",
"**/.cvsignore",
// SCCS
"**/SCCS",
"**/SCCS/**",
// Visual SourceSafe
"**/vssver.scc",
// Subversion
"**/.svn",
"**/.svn/**",
// Arch
"**/.arch-ids",
"**/.arch-ids/**",
//Bazaar
"**/.bzr",
"**/.bzr/**",
//SurroundSCM
"**/.MySCMServerInfo",
// Mac
"**/.DS_Store"
};
/** The base directory to be scanned. */
protected TFile basedir;
/** The patterns for the files to be included. */
protected String[] includes;
/** The patterns for the files to be excluded. */
protected String[] excludes;
/** The files which matched at least one include and no excludes
* and were selected.
*/
protected Vector filesIncluded;
/** The files which did not match any includes or selectors. */
protected Vector filesNotIncluded;
/**
* The files which matched at least one include and at least
* one exclude.
*/
protected Vector filesExcluded;
/** The directories which matched at least one include and no excludes
* and were selected.
*/
protected Vector dirsIncluded;
/** The directories which were found and did not match any includes. */
protected Vector dirsNotIncluded;
/**
* The directories which matched at least one include and at least one
* exclude.
*/
protected Vector dirsExcluded;
/** The files which matched at least one include and no excludes and
* which a selector discarded.
*/
protected Vector filesDeselected;
/** The directories which matched at least one include and no excludes
* but which a selector discarded.
*/
protected Vector dirsDeselected;
/** Whether or not our results were built by a slow scan. */
protected boolean haveSlowResults = false;
/**
* Whether or not the file system should be treated as a case sensitive
* one.
*/
protected boolean isCaseSensitive = true;
/**
* Whether or not symbolic links should be followed.
*
* @since Ant 1.5
*/
private boolean followSymlinks = true;
/**
* Whether or not not recursively drill down inner archive.
*/
private boolean followArchive = false;
/** Whether or not everything tested so far has been included. */
protected boolean everythingIncluded = true;
/**
* Sole constructor.
*/
public TrueZipDirectoryScanner()
{
}
/**
* Tests whether or not a given path matches the start of a given
* pattern up to the first "**".
*
* This is not a general purpose test and should only be used if you
* can live with false positives. For example, pattern=**\a
* and str=b will yield true.
*
* @param pattern The pattern to match against. Must not be
* null.
* @param str The path to match, as a String. Must not be
* null.
*
* @return whether or not a given path matches the start of a given
* pattern up to the first "**".
*/
protected static boolean matchPatternStart( String pattern, String str )
{
return SelectorUtils.matchPatternStart( pattern, str );
}
/**
* Tests whether or not a given path matches the start of a given
* pattern up to the first "**".
*
* This is not a general purpose test and should only be used if you
* can live with false positives. For example, pattern=**\a
* and str=b will yield true.
*
* @param pattern The pattern to match against. Must not be
* null.
* @param str The path to match, as a String. Must not be
* null.
* @param isCaseSensitive Whether or not matching should be performed
* case sensitively.
*
* @return whether or not a given path matches the start of a given
* pattern up to the first "**".
*/
protected static boolean matchPatternStart( String pattern, String str,
boolean isCaseSensitive )
{
return SelectorUtils.matchPatternStart( pattern, str, isCaseSensitive );
}
/**
* Tests whether or not a given path matches a given pattern.
*
* @param pattern The pattern to match against. Must not be
* null.
* @param str The path to match, as a String. Must not be
* null.
*
* @return true if the pattern matches against the string,
* or false otherwise.
*/
protected static boolean matchPath( String pattern, String str )
{
return SelectorUtils.matchPath( pattern, str );
}
/**
* Tests whether or not a given path matches a given pattern.
*
* @param pattern The pattern to match against. Must not be
* null.
* @param str The path to match, as a String. Must not be
* null.
* @param isCaseSensitive Whether or not matching should be performed
* case sensitively.
*
* @return true if the pattern matches against the string,
* or false otherwise.
*/
protected static boolean matchPath( String pattern, String str,
boolean isCaseSensitive )
{
return SelectorUtils.matchPath( pattern, str, isCaseSensitive );
}
/**
* Tests whether or not a string matches against a pattern.
* The pattern may contain two special characters:
* '*' means zero or more characters
* '?' means one and only one character
*
* @param pattern The pattern to match against.
* Must not be null.
* @param str The string which must be matched against the pattern.
* Must not be null.
*
* @return true if the string matches against the pattern,
* or false otherwise.
*/
public static boolean match( String pattern, String str )
{
return SelectorUtils.match( pattern, str );
}
/**
* Tests whether or not a string matches against a pattern.
* The pattern may contain two special characters:
* '*' means zero or more characters
* '?' means one and only one character
*
* @param pattern The pattern to match against.
* Must not be null.
* @param str The string which must be matched against the pattern.
* Must not be null.
* @param isCaseSensitive Whether or not matching should be performed
* case sensitively.
*
*
* @return true if the string matches against the pattern,
* or false otherwise.
*/
protected static boolean match( String pattern, String str,
boolean isCaseSensitive )
{
return SelectorUtils.match( pattern, str, isCaseSensitive );
}
/**
* Sets the base directory to be scanned. This is the directory which is
* scanned recursively. All '/' and '\' characters are replaced by
* File.separatorChar, so the separator used need not match
* File.separatorChar.
*
* @param basedir The base directory to scan.
* Must not be null.
*/
public void setBasedir( String basedir )
{
setBasedir( new TFile( basedir.replace( '/', TFile.separatorChar ).replace(
'\\', TFile.separatorChar ) ) );
}
/**
* Sets the base directory to be scanned. This is the directory which is
* scanned recursively.
*
* @param basedir The base directory for scanning.
* Should not be null.
*/
public void setBasedir( TFile basedir )
{
this.basedir = basedir;
}
/**
* Returns the base directory to be scanned.
* This is the directory which is scanned recursively.
*
* @return the base directory to be scanned
*/
public TFile getBasedir()
{
return basedir;
}
/**
* Sets whether or not the file system should be regarded as case sensitive.
*
* @param isCaseSensitive whether or not the file system should be
* regarded as a case sensitive one
*/
public void setCaseSensitive( boolean isCaseSensitive )
{
this.isCaseSensitive = isCaseSensitive;
}
/**
* Sets whether or not symbolic links should be followed.
*
* @param followSymlinks whether or not symbolic links should be followed
*/
public void setFollowSymlinks( boolean followSymlinks )
{
this.followSymlinks = followSymlinks;
}
/**
* Whether or not not recursively drill down inner archive
* @return
*/
public boolean isFollowArchive()
{
return followArchive;
}
/**
* Whether or not not recursively drill down inner archive
* @param followArchive
*/
public void setFollowArchive( boolean followArchive )
{
this.followArchive = followArchive;
}
/**
* Sets the list of include patterns to use. All '/' and '\' characters
* are replaced by File.separatorChar, so the separator used
* need not match File.separatorChar.
*
* When a pattern ends with a '/' or '\', "**" is appended.
*
* @param includes A list of include patterns.
* May be null, indicating that all files
* should be included. If a non-null
* list is given, all elements must be
* non-null.
*/
public void setIncludes( String[] includes )
{
if ( includes == null )
{
this.includes = null;
}
else
{
this.includes = new String[includes.length];
for ( int i = 0; i < includes.length; i++ )
{
String pattern;
pattern = includes[i].trim().replace( '/', TFile.separatorChar ).replace(
'\\', TFile.separatorChar );
if ( pattern.endsWith( TFile.separator ) )
{
pattern += "**";
}
this.includes[i] = pattern;
}
}
}
/**
* Sets the list of exclude patterns to use. All '/' and '\' characters
* are replaced by File.separatorChar, so the separator used
* need not match File.separatorChar.
*
* When a pattern ends with a '/' or '\', "**" is appended.
*
* @param excludes A list of exclude patterns.
* May be null, indicating that no files
* should be excluded. If a non-null list is
* given, all elements must be non-null.
*/
public void setExcludes( String[] excludes )
{
if ( excludes == null )
{
this.excludes = null;
}
else
{
this.excludes = new String[excludes.length];
for ( int i = 0; i < excludes.length; i++ )
{
String pattern;
pattern = excludes[i].trim().replace( '/', TFile.separatorChar ).replace(
'\\', TFile.separatorChar );
if ( pattern.endsWith( TFile.separator ) )
{
pattern += "**";
}
this.excludes[i] = pattern;
}
}
}
/**
* Returns whether or not the scanner has included all the files or
* directories it has come across so far.
*
* @return true if all files and directories which have
* been found so far have been included.
*/
public boolean isEverythingIncluded()
{
return everythingIncluded;
}
/**
* Scans the base directory for files which match at least one include
* pattern and don't match any exclude patterns. If there are selectors
* then the files must pass muster there, as well.
*
* @exception IllegalStateException if the base directory was set
* incorrectly (i.e. if it is null, doesn't exist,
* or isn't a directory).
*/
public void scan() throws IllegalStateException
{
if ( basedir == null )
{
throw new IllegalStateException( "No basedir set" );
}
if ( !basedir.exists() )
{
throw new IllegalStateException( "basedir " + basedir
+ " does not exist" );
}
if ( !basedir.isDirectory() )
{
throw new IllegalStateException( "basedir " + basedir
+ " is not a directory" );
}
if ( includes == null )
{
// No includes supplied, so set it to 'matches all'
includes = new String[1];
includes[0] = "**";
}
if ( excludes == null )
{
excludes = new String[0];
}
filesIncluded = new Vector();
filesNotIncluded = new Vector();
filesExcluded = new Vector();
filesDeselected = new Vector();
dirsIncluded = new Vector();
dirsNotIncluded = new Vector();
dirsExcluded = new Vector();
dirsDeselected = new Vector();
if ( isIncluded( "" ) )
{
if ( !isExcluded( "" ) )
{
if ( isSelected( "", basedir ) )
{
dirsIncluded.addElement( "" );
}
else
{
dirsDeselected.addElement( "" );
}
}
else
{
dirsExcluded.addElement( "" );
}
}
else
{
dirsNotIncluded.addElement( "" );
}
scandir( basedir, "", true );
}
/**
* Top level invocation for a slow scan. A slow scan builds up a full
* list of excluded/included files/directories, whereas a fast scan
* will only have full results for included files, as it ignores
* directories which can't possibly hold any included files/directories.
*
* Returns immediately if a slow scan has already been completed.
*/
protected void slowScan()
{
if ( haveSlowResults )
{
return;
}
String[] excl = new String[dirsExcluded.size()];
dirsExcluded.copyInto( excl );
String[] notIncl = new String[dirsNotIncluded.size()];
dirsNotIncluded.copyInto( notIncl );
for ( int i = 0; i < excl.length; i++ )
{
if ( !couldHoldIncluded( excl[i] ) )
{
scandir( new TFile( basedir, excl[i] ),
excl[i] + TFile.separator, false );
}
}
for ( int i = 0; i < notIncl.length; i++ )
{
if ( !couldHoldIncluded( notIncl[i] ) )
{
scandir( new TFile( basedir, notIncl[i] ),
notIncl[i] + TFile.separator, false );
}
}
haveSlowResults = true;
}
/**
* Scans the given directory for files and directories. Found files and
* directories are placed in their respective collections, based on the
* matching of includes, excludes, and the selectors. When a directory
* is found, it is scanned recursively.
*
* @param dir The directory to scan. Must not be null.
* @param vpath The path relative to the base directory (needed to
* prevent problems with an absolute path when using
* dir). Must not be null.
* @param fast Whether or not this call is part of a fast scan.
* @throws IOException
*
* @see #filesIncluded
* @see #filesNotIncluded
* @see #filesExcluded
* @see #dirsIncluded
* @see #dirsNotIncluded
* @see #dirsExcluded
* @see #slowScan
*/
protected void scandir( TFile dir, String vpath, boolean fast )
{
String[] newfiles = dir.list();
if ( newfiles == null )
{
/*
* two reasons are mentioned in the API docs for File.list
* (1) dir is not a directory. This is impossible as
* we wouldn't get here in this case.
* (2) an IO error occurred (why doesn't it throw an exception
* then???)
*/
/*
* [jdcasey] (2) is apparently happening to me, as this is killing one of my tests...
* this is affecting the assembly plugin, fwiw. I will initialize the newfiles array as
* zero-length for now.
*
* NOTE: I can't find the problematic code, as it appears to come from a native method
* in UnixFileSystem...
*/
/*
* [bentmann] A null array will also be returned from list() on NTFS when dir refers to a soft link or
* junction point whose target is not existent.
*/
newfiles = new String[0];
// throw new IOException( "IO error scanning directory " + dir.getAbsolutePath() );
}
if ( !followSymlinks )
{
Vector noLinks = new Vector();
for ( int i = 0; i < newfiles.length; i++ )
{
try
{
if ( isSymbolicLink( dir, newfiles[i] ) )
{
String name = vpath + newfiles[i];
TFile file = new TFile( dir, newfiles[i] );
if ( file.isArchive() && this.followArchive )
{
dirsExcluded.addElement( name );
}
else if ( file.isDirectory() )
{
dirsExcluded.addElement( name );
}
else
{
filesExcluded.addElement( name );
}
}
else
{
noLinks.addElement( newfiles[i] );
}
}
catch ( IOException ioe )
{
String msg = "IOException caught while checking "
+ "for links, couldn't get cannonical path!";
// will be caught and redirected to Ant's logging system
System.err.println( msg );
noLinks.addElement( newfiles[i] );
}
}
newfiles = new String[noLinks.size()];
noLinks.copyInto( newfiles );
}
for ( int i = 0; i < newfiles.length; i++ )
{
String name = vpath + newfiles[i];
TFile file = new TFile( dir, newfiles[i] );
if ( ( file.isArchive() && !this.followArchive ) || file.isFile() )
{
if ( isIncluded( name ) )
{
if ( !isExcluded( name ) )
{
if ( isSelected( name, file ) )
{
filesIncluded.addElement( name );
}
else
{
everythingIncluded = false;
filesDeselected.addElement( name );
}
}
else
{
everythingIncluded = false;
filesExcluded.addElement( name );
}
}
else
{
everythingIncluded = false;
filesNotIncluded.addElement( name );
}
}
else if ( file.isDirectory() )
{
if ( isIncluded( name ) )
{
if ( !isExcluded( name ) )
{
if ( isSelected( name, file ) )
{
dirsIncluded.addElement( name );
if ( fast )
{
scandir( file, name + TFile.separator, fast );
}
}
else
{
everythingIncluded = false;
dirsDeselected.addElement( name );
if ( fast && couldHoldIncluded( name ) )
{
scandir( file, name + TFile.separator, fast );
}
}
}
else
{
everythingIncluded = false;
dirsExcluded.addElement( name );
if ( fast && couldHoldIncluded( name ) )
{
scandir( file, name + TFile.separator, fast );
}
}
}
else
{
everythingIncluded = false;
dirsNotIncluded.addElement( name );
if ( fast && couldHoldIncluded( name ) )
{
scandir( file, name + TFile.separator, fast );
}
}
if ( !fast )
{
scandir( file, name + TFile.separator, fast );
}
}
}
}
/**
* Tests whether or not a name matches against at least one include
* pattern.
*
* @param name The name to match. Must not be null.
* @return true when the name matches against at least one
* include pattern, or false otherwise.
*/
protected boolean isIncluded( String name )
{
for ( int i = 0; i < includes.length; i++ )
{
if ( matchPath( includes[i], name, isCaseSensitive ) )
{
return true;
}
}
return false;
}
/**
* Tests whether or not a name matches the start of at least one include
* pattern.
*
* @param name The name to match. Must not be null.
* @return true when the name matches against the start of at
* least one include pattern, or false otherwise.
*/
protected boolean couldHoldIncluded( String name )
{
for ( int i = 0; i < includes.length; i++ )
{
if ( matchPatternStart( includes[i], name, isCaseSensitive ) )
{
return true;
}
}
return false;
}
/**
* Tests whether or not a name matches against at least one exclude
* pattern.
*
* @param name The name to match. Must not be null.
* @return true when the name matches against at least one
* exclude pattern, or false otherwise.
*/
protected boolean isExcluded( String name )
{
for ( int i = 0; i < excludes.length; i++ )
{
if ( matchPath( excludes[i], name, isCaseSensitive ) )
{
return true;
}
}
return false;
}
/**
* Tests whether a name should be selected.
*
* @param name the filename to check for selecting
* @param file the java.io.File object for this filename
* @return false when the selectors says that the file
* should not be selected, true otherwise.
*/
protected boolean isSelected( String name, TFile file )
{
return true;
}
/**
* Returns the names of the files which matched at least one of the
* include patterns and none of the exclude patterns.
* The names are relative to the base directory.
*
* @return the names of the files which matched at least one of the
* include patterns and none of the exclude patterns.
*/
public String[] getIncludedFiles()
{
String[] files = new String[filesIncluded.size()];
filesIncluded.copyInto( files );
return files;
}
/**
* Returns the names of the files which matched none of the include
* patterns. The names are relative to the base directory. This involves
* performing a slow scan if one has not already been completed.
*
* @return the names of the files which matched none of the include
* patterns.
*
* @see #slowScan
*/
public String[] getNotIncludedFiles()
{
slowScan();
String[] files = new String[filesNotIncluded.size()];
filesNotIncluded.copyInto( files );
return files;
}
/**
* Returns the names of the files which matched at least one of the
* include patterns and at least one of the exclude patterns.
* The names are relative to the base directory. This involves
* performing a slow scan if one has not already been completed.
*
* @return the names of the files which matched at least one of the
* include patterns and at at least one of the exclude patterns.
*
* @see #slowScan
*/
public String[] getExcludedFiles()
{
slowScan();
String[] files = new String[filesExcluded.size()];
filesExcluded.copyInto( files );
return files;
}
/**
*
Returns the names of the files which were selected out and
* therefore not ultimately included.
*
* The names are relative to the base directory. This involves
* performing a slow scan if one has not already been completed.
*
* @return the names of the files which were deselected.
*
* @see #slowScan
*/
public String[] getDeselectedFiles()
{
slowScan();
String[] files = new String[filesDeselected.size()];
filesDeselected.copyInto( files );
return files;
}
/**
* Returns the names of the directories which matched at least one of the
* include patterns and none of the exclude patterns.
* The names are relative to the base directory.
*
* @return the names of the directories which matched at least one of the
* include patterns and none of the exclude patterns.
*/
public String[] getIncludedDirectories()
{
String[] directories = new String[dirsIncluded.size()];
dirsIncluded.copyInto( directories );
return directories;
}
/**
* Returns the names of the directories which matched none of the include
* patterns. The names are relative to the base directory. This involves
* performing a slow scan if one has not already been completed.
*
* @return the names of the directories which matched none of the include
* patterns.
*
* @see #slowScan
*/
public String[] getNotIncludedDirectories()
{
slowScan();
String[] directories = new String[dirsNotIncluded.size()];
dirsNotIncluded.copyInto( directories );
return directories;
}
/**
* Returns the names of the directories which matched at least one of the
* include patterns and at least one of the exclude patterns.
* The names are relative to the base directory. This involves
* performing a slow scan if one has not already been completed.
*
* @return the names of the directories which matched at least one of the
* include patterns and at least one of the exclude patterns.
*
* @see #slowScan
*/
public String[] getExcludedDirectories()
{
slowScan();
String[] directories = new String[dirsExcluded.size()];
dirsExcluded.copyInto( directories );
return directories;
}
/**
* Returns the names of the directories which were selected out and
* therefore not ultimately included.
*
* The names are relative to the base directory. This involves
* performing a slow scan if one has not already been completed.
*
* @return the names of the directories which were deselected.
*
* @see #slowScan
*/
public String[] getDeselectedDirectories()
{
slowScan();
String[] directories = new String[dirsDeselected.size()];
dirsDeselected.copyInto( directories );
return directories;
}
/**
* Adds default exclusions to the current exclusions set.
*/
public void addDefaultExcludes()
{
int excludesLength = excludes == null ? 0 : excludes.length;
String[] newExcludes;
newExcludes = new String[excludesLength + DEFAULTEXCLUDES.length];
if ( excludesLength > 0 )
{
System.arraycopy( excludes, 0, newExcludes, 0, excludesLength );
}
for ( int i = 0; i < DEFAULTEXCLUDES.length; i++ )
{
newExcludes[i + excludesLength] = DEFAULTEXCLUDES[i].replace( '/',
TFile.separatorChar ).replace( '\\', TFile.separatorChar );
}
excludes = newExcludes;
}
/**
* Checks whether a given file is a symbolic link.
*
* It doesn't really test for symbolic links but whether the
* canonical and absolute paths of the file are identical - this
* may lead to false positives on some platforms.
*
* @param parent the parent directory of the file to test
* @param name the name of the file to test.
*
* @since Ant 1.5
*/
public boolean isSymbolicLink( TFile parent, String name )
throws IOException
{
TFile resolvedParent = new TFile( parent.getCanonicalPath() );
TFile toTest = new TFile( resolvedParent, name );
return !toTest.getAbsolutePath().equals( toTest.getCanonicalPath() );
}
}