| /* |
| * 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. |
| * |
| */ |
| |
| package org.apache.tools.ant; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.Iterator; |
| import java.util.Map; |
| import java.util.Set; |
| import java.util.Vector; |
| |
| import org.apache.tools.ant.taskdefs.condition.Os; |
| import org.apache.tools.ant.types.Resource; |
| import org.apache.tools.ant.types.ResourceFactory; |
| import org.apache.tools.ant.types.resources.FileResource; |
| import org.apache.tools.ant.types.selectors.FileSelector; |
| import org.apache.tools.ant.types.selectors.SelectorScanner; |
| import org.apache.tools.ant.types.selectors.SelectorUtils; |
| import org.apache.tools.ant.util.FileUtils; |
| |
| /** |
| * Class for scanning a directory for files/directories which match certain |
| * criteria. |
| * <p> |
| * 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. |
| * <p> |
| * 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. |
| * <p> |
| * 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. |
| * <p> |
| * 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 |
| * <code>File.separator</code> ('/' 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. |
| * <p> |
| * 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. |
| * <p> |
| * There is a special case regarding the use of <code>File.separator</code>s |
| * at the beginning of the pattern and the string to match:<br> |
| * When a pattern starts with a <code>File.separator</code>, the string |
| * to match must also start with a <code>File.separator</code>. |
| * When a pattern does not start with a <code>File.separator</code>, the |
| * string to match may not start with a <code>File.separator</code>. |
| * When one of these rules is not obeyed, the string will not |
| * match. |
| * <p> |
| * When a name path segment is matched against a pattern path segment, the |
| * following special characters can be used:<br> |
| * '*' matches zero or more characters<br> |
| * '?' matches one character. |
| * <p> |
| * Examples: |
| * <p> |
| * "**\*.class" matches all .class files/dirs in a directory tree. |
| * <p> |
| * "test\a??.java" matches all files/dirs which start with an 'a', then two |
| * more characters and then ".java", in a directory called test. |
| * <p> |
| * "**" matches everything in a directory tree. |
| * <p> |
| * "**\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"). |
| * <p> |
| * Case sensitivity may be turned off if necessary. By default, it is |
| * turned on. |
| * <p> |
| * Example of usage: |
| * <pre> |
| * 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]); |
| * } |
| * </pre> |
| * This will scan a directory called test for .class files, but excludes all |
| * files in all proper subdirectories of a directory called "modules" |
| * |
| */ |
| public class DirectoryScanner |
| implements FileScanner, SelectorScanner, ResourceFactory { |
| |
| /** Is OpenVMS the operating system we're running on? */ |
| private static final boolean ON_VMS = Os.isFamily("openvms"); |
| |
| /** |
| * Patterns which should be excluded by default. |
| * |
| * <p>Note that you can now add patterns to the list of default |
| * excludes. Added patterns will not become part of this array |
| * that has only been kept around for backwards compatibility |
| * reasons.</p> |
| * |
| * @deprecated since 1.6.x. |
| * Use the {@link #getDefaultExcludes getDefaultExcludes} |
| * method instead. |
| */ |
| protected static final String[] DEFAULTEXCLUDES = { |
| // Miscellaneous typical temporary files |
| "**/*~", |
| "**/#*#", |
| "**/.#*", |
| "**/%*%", |
| "**/._*", |
| |
| // CVS |
| "**/CVS", |
| "**/CVS/**", |
| "**/.cvsignore", |
| |
| // SCCS |
| "**/SCCS", |
| "**/SCCS/**", |
| |
| // Visual SourceSafe |
| "**/vssver.scc", |
| |
| // Subversion |
| "**/.svn", |
| "**/.svn/**", |
| |
| // Mac |
| "**/.DS_Store" |
| }; |
| |
| /** Helper. */ |
| private static final FileUtils FILE_UTILS = FileUtils.getFileUtils(); |
| |
| /** iterations for case-sensitive scanning. */ |
| private static final boolean[] CS_SCAN_ONLY = new boolean[] {true}; |
| |
| /** iterations for non-case-sensitive scanning. */ |
| private static final boolean[] CS_THEN_NON_CS = new boolean[] {true, false}; |
| |
| /** |
| * Patterns which should be excluded by default. |
| * |
| * @see #addDefaultExcludes() |
| */ |
| private static Vector defaultExcludes = new Vector(); |
| static { |
| resetDefaultExcludes(); |
| } |
| |
| // CheckStyle:VisibilityModifier OFF - bc |
| |
| /** The base directory to be scanned. */ |
| protected File basedir; |
| |
| /** The patterns for the files to be included. */ |
| protected String[] includes; |
| |
| /** The patterns for the files to be excluded. */ |
| protected String[] excludes; |
| |
| /** Selectors that will filter which files are in our candidate list. */ |
| protected FileSelector[] selectors = null; |
| |
| /** |
| * 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 a missing base directory is an error. |
| * @since Ant 1.7.1 |
| */ |
| protected boolean errorOnMissingDir = true; |
| |
| /** |
| * Whether or not symbolic links should be followed. |
| * |
| * @since Ant 1.5 |
| */ |
| private boolean followSymlinks = true; |
| |
| /** Whether or not everything tested so far has been included. */ |
| protected boolean everythingIncluded = true; |
| |
| // CheckStyle:VisibilityModifier ON |
| |
| /** |
| * Temporary table to speed up the various scanning methods. |
| * |
| * @since Ant 1.6 |
| */ |
| private Map fileListMap = new HashMap(); |
| |
| /** |
| * List of all scanned directories. |
| * |
| * @since Ant 1.6 |
| */ |
| private Set scannedDirs = new HashSet(); |
| |
| /** |
| * Set of all include patterns that are full file names and don't |
| * contain any wildcards. |
| * |
| * <p>If this instance is not case sensitive, the file names get |
| * turned to lower case.</p> |
| * |
| * <p>Gets lazily initialized on the first invocation of |
| * isIncluded or isExcluded and cleared at the end of the scan |
| * method (cleared in clearCaches, actually).</p> |
| * |
| * @since Ant 1.6.3 |
| */ |
| private Set includeNonPatterns = new HashSet(); |
| |
| /** |
| * Set of all include patterns that are full file names and don't |
| * contain any wildcards. |
| * |
| * <p>If this instance is not case sensitive, the file names get |
| * turned to lower case.</p> |
| * |
| * <p>Gets lazily initialized on the first invocation of |
| * isIncluded or isExcluded and cleared at the end of the scan |
| * method (cleared in clearCaches, actually).</p> |
| * |
| * @since Ant 1.6.3 |
| */ |
| private Set excludeNonPatterns = new HashSet(); |
| |
| /** |
| * Array of all include patterns that contain wildcards. |
| * |
| * <p>Gets lazily initialized on the first invocation of |
| * isIncluded or isExcluded and cleared at the end of the scan |
| * method (cleared in clearCaches, actually).</p> |
| * |
| * @since Ant 1.6.3 |
| */ |
| private String[] includePatterns; |
| |
| /** |
| * Array of all exclude patterns that contain wildcards. |
| * |
| * <p>Gets lazily initialized on the first invocation of |
| * isIncluded or isExcluded and cleared at the end of the scan |
| * method (cleared in clearCaches, actually).</p> |
| * |
| * @since Ant 1.6.3 |
| */ |
| private String[] excludePatterns; |
| |
| /** |
| * Have the non-pattern sets and pattern arrays for in- and |
| * excludes been initialized? |
| * |
| * @since Ant 1.6.3 |
| */ |
| private boolean areNonPatternSetsReady = false; |
| |
| /** |
| * Scanning flag. |
| * |
| * @since Ant 1.6.3 |
| */ |
| private boolean scanning = false; |
| |
| /** |
| * Scanning lock. |
| * |
| * @since Ant 1.6.3 |
| */ |
| private Object scanLock = new Object(); |
| |
| /** |
| * Slow scanning flag. |
| * |
| * @since Ant 1.6.3 |
| */ |
| private boolean slowScanning = false; |
| |
| /** |
| * Slow scanning lock. |
| * |
| * @since Ant 1.6.3 |
| */ |
| private Object slowScanLock = new Object(); |
| |
| /** |
| * Exception thrown during scan. |
| * |
| * @since Ant 1.6.3 |
| */ |
| private IllegalStateException illegal = null; |
| |
| /** |
| * Sole constructor. |
| */ |
| public DirectoryScanner() { |
| } |
| |
| /** |
| * Test whether or not a given path matches the start of a given |
| * pattern up to the first "**". |
| * <p> |
| * This is not a general purpose test and should only be used if you |
| * can live with false positives. For example, <code>pattern=**\a</code> |
| * and <code>str=b</code> will yield <code>true</code>. |
| * |
| * @param pattern The pattern to match against. Must not be |
| * <code>null</code>. |
| * @param str The path to match, as a String. Must not be |
| * <code>null</code>. |
| * |
| * @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); |
| } |
| |
| /** |
| * Test whether or not a given path matches the start of a given |
| * pattern up to the first "**". |
| * <p> |
| * This is not a general purpose test and should only be used if you |
| * can live with false positives. For example, <code>pattern=**\a</code> |
| * and <code>str=b</code> will yield <code>true</code>. |
| * |
| * @param pattern The pattern to match against. Must not be |
| * <code>null</code>. |
| * @param str The path to match, as a String. Must not be |
| * <code>null</code>. |
| * @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); |
| } |
| |
| /** |
| * Test whether or not a given path matches a given pattern. |
| * |
| * @param pattern The pattern to match against. Must not be |
| * <code>null</code>. |
| * @param str The path to match, as a String. Must not be |
| * <code>null</code>. |
| * |
| * @return <code>true</code> if the pattern matches against the string, |
| * or <code>false</code> otherwise. |
| */ |
| protected static boolean matchPath(String pattern, String str) { |
| return SelectorUtils.matchPath(pattern, str); |
| } |
| |
| /** |
| * Test whether or not a given path matches a given pattern. |
| * |
| * @param pattern The pattern to match against. Must not be |
| * <code>null</code>. |
| * @param str The path to match, as a String. Must not be |
| * <code>null</code>. |
| * @param isCaseSensitive Whether or not matching should be performed |
| * case sensitively. |
| * |
| * @return <code>true</code> if the pattern matches against the string, |
| * or <code>false</code> otherwise. |
| */ |
| protected static boolean matchPath(String pattern, String str, |
| boolean isCaseSensitive) { |
| return SelectorUtils.matchPath(pattern, str, isCaseSensitive); |
| } |
| |
| /** |
| * Test whether or not a string matches against a pattern. |
| * The pattern may contain two special characters:<br> |
| * '*' means zero or more characters<br> |
| * '?' means one and only one character |
| * |
| * @param pattern The pattern to match against. |
| * Must not be <code>null</code>. |
| * @param str The string which must be matched against the pattern. |
| * Must not be <code>null</code>. |
| * |
| * @return <code>true</code> if the string matches against the pattern, |
| * or <code>false</code> otherwise. |
| */ |
| public static boolean match(String pattern, String str) { |
| return SelectorUtils.match(pattern, str); |
| } |
| |
| /** |
| * Test whether or not a string matches against a pattern. |
| * The pattern may contain two special characters:<br> |
| * '*' means zero or more characters<br> |
| * '?' means one and only one character |
| * |
| * @param pattern The pattern to match against. |
| * Must not be <code>null</code>. |
| * @param str The string which must be matched against the pattern. |
| * Must not be <code>null</code>. |
| * @param isCaseSensitive Whether or not matching should be performed |
| * case sensitively. |
| * |
| * |
| * @return <code>true</code> if the string matches against the pattern, |
| * or <code>false</code> otherwise. |
| */ |
| protected static boolean match(String pattern, String str, |
| boolean isCaseSensitive) { |
| return SelectorUtils.match(pattern, str, isCaseSensitive); |
| } |
| |
| |
| /** |
| * Get the list of patterns that should be excluded by default. |
| * |
| * @return An array of <code>String</code> based on the current |
| * contents of the <code>defaultExcludes</code> |
| * <code>Vector</code>. |
| * |
| * @since Ant 1.6 |
| */ |
| public static String[] getDefaultExcludes() { |
| return (String[]) defaultExcludes.toArray(new String[defaultExcludes |
| .size()]); |
| } |
| |
| /** |
| * Add a pattern to the default excludes unless it is already a |
| * default exclude. |
| * |
| * @param s A string to add as an exclude pattern. |
| * @return <code>true</code> if the string was added; |
| * <code>false</code> if it already existed. |
| * |
| * @since Ant 1.6 |
| */ |
| public static boolean addDefaultExclude(String s) { |
| if (defaultExcludes.indexOf(s) == -1) { |
| defaultExcludes.add(s); |
| return true; |
| } |
| return false; |
| } |
| |
| /** |
| * Remove a string if it is a default exclude. |
| * |
| * @param s The string to attempt to remove. |
| * @return <code>true</code> if <code>s</code> was a default |
| * exclude (and thus was removed); |
| * <code>false</code> if <code>s</code> was not |
| * in the default excludes list to begin with. |
| * |
| * @since Ant 1.6 |
| */ |
| public static boolean removeDefaultExclude(String s) { |
| return defaultExcludes.remove(s); |
| } |
| |
| /** |
| * Go back to the hardwired default exclude patterns. |
| * |
| * @since Ant 1.6 |
| */ |
| public static void resetDefaultExcludes() { |
| defaultExcludes = new Vector(); |
| for (int i = 0; i < DEFAULTEXCLUDES.length; i++) { |
| defaultExcludes.add(DEFAULTEXCLUDES[i]); |
| } |
| } |
| |
| /** |
| * Set the base directory to be scanned. This is the directory which is |
| * scanned recursively. All '/' and '\' characters are replaced by |
| * <code>File.separatorChar</code>, so the separator used need not match |
| * <code>File.separatorChar</code>. |
| * |
| * @param basedir The base directory to scan. |
| */ |
| public void setBasedir(String basedir) { |
| setBasedir(basedir == null ? (File) null |
| : new File(basedir.replace('/', File.separatorChar).replace( |
| '\\', File.separatorChar))); |
| } |
| |
| /** |
| * Set the base directory to be scanned. This is the directory which is |
| * scanned recursively. |
| * |
| * @param basedir The base directory for scanning. |
| */ |
| public synchronized void setBasedir(File basedir) { |
| this.basedir = basedir; |
| } |
| |
| /** |
| * Return the base directory to be scanned. |
| * This is the directory which is scanned recursively. |
| * |
| * @return the base directory to be scanned. |
| */ |
| public synchronized File getBasedir() { |
| return basedir; |
| } |
| |
| /** |
| * Find out whether include exclude patterns are matched in a |
| * case sensitive way. |
| * @return whether or not the scanning is case sensitive. |
| * @since Ant 1.6 |
| */ |
| public synchronized boolean isCaseSensitive() { |
| return isCaseSensitive; |
| } |
| |
| /** |
| * Set whether or not include and exclude patterns are matched |
| * in a case sensitive way. |
| * |
| * @param isCaseSensitive whether or not the file system should be |
| * regarded as a case sensitive one. |
| */ |
| public synchronized void setCaseSensitive(boolean isCaseSensitive) { |
| this.isCaseSensitive = isCaseSensitive; |
| } |
| |
| /** |
| * Sets whether or not a missing base directory is an error |
| * |
| * @param errorOnMissingDir whether or not a missing base directory |
| * is an error |
| * @since Ant 1.7.1 |
| */ |
| public void setErrorOnMissingDir(boolean errorOnMissingDir) { |
| this.errorOnMissingDir = errorOnMissingDir; |
| } |
| |
| /** |
| * Get whether or not a DirectoryScanner follows symbolic links. |
| * |
| * @return flag indicating whether symbolic links should be followed. |
| * |
| * @since Ant 1.6 |
| */ |
| public synchronized boolean isFollowSymlinks() { |
| return followSymlinks; |
| } |
| |
| /** |
| * Set whether or not symbolic links should be followed. |
| * |
| * @param followSymlinks whether or not symbolic links should be followed. |
| */ |
| public synchronized void setFollowSymlinks(boolean followSymlinks) { |
| this.followSymlinks = followSymlinks; |
| } |
| |
| /** |
| * Set the list of include patterns to use. All '/' and '\' characters |
| * are replaced by <code>File.separatorChar</code>, so the separator used |
| * need not match <code>File.separatorChar</code>. |
| * <p> |
| * When a pattern ends with a '/' or '\', "**" is appended. |
| * |
| * @param includes A list of include patterns. |
| * May be <code>null</code>, indicating that all files |
| * should be included. If a non-<code>null</code> |
| * list is given, all elements must be |
| * non-<code>null</code>. |
| */ |
| public synchronized 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++) { |
| this.includes[i] = normalizePattern(includes[i]); |
| } |
| } |
| } |
| |
| /** |
| * Set the list of exclude patterns to use. All '/' and '\' characters |
| * are replaced by <code>File.separatorChar</code>, so the separator used |
| * need not match <code>File.separatorChar</code>. |
| * <p> |
| * When a pattern ends with a '/' or '\', "**" is appended. |
| * |
| * @param excludes A list of exclude patterns. |
| * May be <code>null</code>, indicating that no files |
| * should be excluded. If a non-<code>null</code> list is |
| * given, all elements must be non-<code>null</code>. |
| */ |
| public synchronized 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++) { |
| this.excludes[i] = normalizePattern(excludes[i]); |
| } |
| } |
| } |
| |
| /** |
| * Add to the list of exclude patterns to use. All '/' and '\' |
| * characters are replaced by <code>File.separatorChar</code>, so |
| * the separator used need not match <code>File.separatorChar</code>. |
| * <p> |
| * When a pattern ends with a '/' or '\', "**" is appended. |
| * |
| * @param excludes A list of exclude patterns. |
| * May be <code>null</code>, in which case the |
| * exclude patterns don't get changed at all. |
| * |
| * @since Ant 1.6.3 |
| */ |
| public synchronized void addExcludes(String[] excludes) { |
| if (excludes != null && excludes.length > 0) { |
| if (this.excludes != null && this.excludes.length > 0) { |
| String[] tmp = new String[excludes.length |
| + this.excludes.length]; |
| System.arraycopy(this.excludes, 0, tmp, 0, |
| this.excludes.length); |
| for (int i = 0; i < excludes.length; i++) { |
| tmp[this.excludes.length + i] = |
| normalizePattern(excludes[i]); |
| } |
| this.excludes = tmp; |
| } else { |
| setExcludes(excludes); |
| } |
| } |
| } |
| |
| /** |
| * All '/' and '\' characters are replaced by |
| * <code>File.separatorChar</code>, so the separator used need not |
| * match <code>File.separatorChar</code>. |
| * |
| * <p> When a pattern ends with a '/' or '\', "**" is appended. |
| * |
| * @since Ant 1.6.3 |
| */ |
| private static String normalizePattern(String p) { |
| String pattern = p.replace('/', File.separatorChar) |
| .replace('\\', File.separatorChar); |
| if (pattern.endsWith(File.separator)) { |
| pattern += "**"; |
| } |
| return pattern; |
| } |
| |
| /** |
| * Set the selectors that will select the filelist. |
| * |
| * @param selectors specifies the selectors to be invoked on a scan. |
| */ |
| public synchronized void setSelectors(FileSelector[] selectors) { |
| this.selectors = selectors; |
| } |
| |
| /** |
| * Return whether or not the scanner has included all the files or |
| * directories it has come across so far. |
| * |
| * @return <code>true</code> if all files and directories which have |
| * been found so far have been included. |
| */ |
| public synchronized boolean isEverythingIncluded() { |
| return everythingIncluded; |
| } |
| |
| /** |
| * Scan 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. Scans under basedir, if set; otherwise the |
| * include patterns without leading wildcards specify the absolute paths of |
| * the files that may be included. |
| * |
| * @exception IllegalStateException if the base directory was set |
| * incorrectly (i.e. if it doesn't exist or isn't a directory). |
| */ |
| public void scan() throws IllegalStateException { |
| synchronized (scanLock) { |
| if (scanning) { |
| while (scanning) { |
| try { |
| scanLock.wait(); |
| } catch (InterruptedException e) { |
| continue; |
| } |
| } |
| if (illegal != null) { |
| throw illegal; |
| } |
| return; |
| } |
| scanning = true; |
| } |
| try { |
| synchronized (this) { |
| illegal = null; |
| clearResults(); |
| |
| // set in/excludes to reasonable defaults if needed: |
| boolean nullIncludes = (includes == null); |
| includes = nullIncludes ? new String[] {"**"} : includes; |
| boolean nullExcludes = (excludes == null); |
| excludes = nullExcludes ? new String[0] : excludes; |
| |
| if (basedir == null) { |
| // if no basedir and no includes, nothing to do: |
| if (nullIncludes) { |
| return; |
| } |
| } else { |
| if (!basedir.exists()) { |
| if (errorOnMissingDir) { |
| illegal = new IllegalStateException( |
| "basedir " + basedir + " does not exist"); |
| } else { |
| // Nothing to do - basedir does not exist |
| return; |
| } |
| } |
| if (!basedir.isDirectory()) { |
| illegal = new IllegalStateException("basedir " + basedir |
| + " is not a directory"); |
| } |
| if (illegal != null) { |
| throw illegal; |
| } |
| } |
| if (isIncluded("")) { |
| if (!isExcluded("")) { |
| if (isSelected("", basedir)) { |
| dirsIncluded.addElement(""); |
| } else { |
| dirsDeselected.addElement(""); |
| } |
| } else { |
| dirsExcluded.addElement(""); |
| } |
| } else { |
| dirsNotIncluded.addElement(""); |
| } |
| checkIncludePatterns(); |
| clearCaches(); |
| includes = nullIncludes ? null : includes; |
| excludes = nullExcludes ? null : excludes; |
| } |
| } finally { |
| synchronized (scanLock) { |
| scanning = false; |
| scanLock.notifyAll(); |
| } |
| } |
| } |
| |
| /** |
| * This routine is actually checking all the include patterns in |
| * order to avoid scanning everything under base dir. |
| * @since Ant 1.6 |
| */ |
| private void checkIncludePatterns() { |
| Map newroots = new HashMap(); |
| // put in the newroots map the include patterns without |
| // wildcard tokens |
| for (int i = 0; i < includes.length; i++) { |
| if (FileUtils.isAbsolutePath(includes[i])) { |
| //skip abs. paths not under basedir, if set: |
| if (basedir != null |
| && !SelectorUtils.matchPatternStart(includes[i], |
| basedir.getAbsolutePath(), isCaseSensitive())) { |
| continue; |
| } |
| } else if (basedir == null) { |
| //skip non-abs. paths if basedir == null: |
| continue; |
| } |
| newroots.put(SelectorUtils.rtrimWildcardTokens( |
| includes[i]), includes[i]); |
| } |
| if (newroots.containsKey("") && basedir != null) { |
| // we are going to scan everything anyway |
| scandir(basedir, "", true); |
| } else { |
| // only scan directories that can include matched files or |
| // directories |
| Iterator it = newroots.entrySet().iterator(); |
| |
| File canonBase = null; |
| if (basedir != null) { |
| try { |
| canonBase = basedir.getCanonicalFile(); |
| } catch (IOException ex) { |
| throw new BuildException(ex); |
| } |
| } |
| while (it.hasNext()) { |
| Map.Entry entry = (Map.Entry) it.next(); |
| String currentelement = (String) entry.getKey(); |
| if (basedir == null && !FileUtils.isAbsolutePath(currentelement)) { |
| continue; |
| } |
| String originalpattern = (String) entry.getValue(); |
| File myfile = new File(basedir, currentelement); |
| |
| if (myfile.exists()) { |
| // may be on a case insensitive file system. We want |
| // the results to show what's really on the disk, so |
| // we need to double check. |
| try { |
| String path = (basedir == null) |
| ? myfile.getCanonicalPath() |
| : FILE_UTILS.removeLeadingPath(canonBase, |
| myfile.getCanonicalFile()); |
| if (!path.equals(currentelement) || ON_VMS) { |
| myfile = findFile(basedir, currentelement, true); |
| if (myfile != null && basedir != null) { |
| currentelement = FILE_UTILS.removeLeadingPath( |
| basedir, myfile); |
| } |
| } |
| } catch (IOException ex) { |
| throw new BuildException(ex); |
| } |
| } |
| if ((myfile == null || !myfile.exists()) && !isCaseSensitive()) { |
| File f = findFile(basedir, currentelement, false); |
| if (f != null && f.exists()) { |
| // adapt currentelement to the case we've |
| // actually found |
| currentelement = (basedir == null) |
| ? f.getAbsolutePath() |
| : FILE_UTILS.removeLeadingPath(basedir, f); |
| myfile = f; |
| } |
| } |
| if (myfile != null && myfile.exists()) { |
| if (!followSymlinks |
| && isSymlink(basedir, currentelement)) { |
| continue; |
| } |
| if (myfile.isDirectory()) { |
| if (isIncluded(currentelement) |
| && currentelement.length() > 0) { |
| accountForIncludedDir(currentelement, myfile, true); |
| } else { |
| if (currentelement.length() > 0) { |
| if (currentelement.charAt(currentelement |
| .length() - 1) |
| != File.separatorChar) { |
| currentelement = |
| currentelement + File.separatorChar; |
| } |
| } |
| scandir(myfile, currentelement, true); |
| } |
| } else { |
| boolean included = isCaseSensitive() |
| ? originalpattern.equals(currentelement) |
| : originalpattern.equalsIgnoreCase(currentelement); |
| if (included) { |
| accountForIncludedFile(currentelement, myfile); |
| } |
| } |
| } |
| } |
| } |
| } |
| |
| /** |
| * Clear the result caches for a scan. |
| */ |
| protected synchronized void clearResults() { |
| filesIncluded = new Vector(); |
| filesNotIncluded = new Vector(); |
| filesExcluded = new Vector(); |
| filesDeselected = new Vector(); |
| dirsIncluded = new Vector(); |
| dirsNotIncluded = new Vector(); |
| dirsExcluded = new Vector(); |
| dirsDeselected = new Vector(); |
| everythingIncluded = (basedir != null); |
| scannedDirs.clear(); |
| } |
| |
| /** |
| * 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. |
| * <p> |
| * Returns immediately if a slow scan has already been completed. |
| */ |
| protected void slowScan() { |
| synchronized (slowScanLock) { |
| if (haveSlowResults) { |
| return; |
| } |
| if (slowScanning) { |
| while (slowScanning) { |
| try { |
| slowScanLock.wait(); |
| } catch (InterruptedException e) { |
| // Empty |
| } |
| } |
| return; |
| } |
| slowScanning = true; |
| } |
| try { |
| synchronized (this) { |
| |
| // set in/excludes to reasonable defaults if needed: |
| boolean nullIncludes = (includes == null); |
| includes = nullIncludes ? new String[] {"**"} : includes; |
| boolean nullExcludes = (excludes == null); |
| excludes = nullExcludes ? new String[0] : excludes; |
| |
| String[] excl = new String[dirsExcluded.size()]; |
| dirsExcluded.copyInto(excl); |
| |
| String[] notIncl = new String[dirsNotIncluded.size()]; |
| dirsNotIncluded.copyInto(notIncl); |
| |
| processSlowScan(excl); |
| processSlowScan(notIncl); |
| clearCaches(); |
| includes = nullIncludes ? null : includes; |
| excludes = nullExcludes ? null : excludes; |
| } |
| } finally { |
| synchronized (slowScanLock) { |
| haveSlowResults = true; |
| slowScanning = false; |
| slowScanLock.notifyAll(); |
| } |
| } |
| } |
| |
| private void processSlowScan(String[] arr) { |
| for (int i = 0; i < arr.length; i++) { |
| if (!couldHoldIncluded(arr[i])) { |
| scandir(new File(basedir, arr[i]), |
| arr[i] + File.separator, false); |
| } |
| } |
| } |
| |
| /** |
| * Scan 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 <code>null</code>. |
| * @param vpath The path relative to the base directory (needed to |
| * prevent problems with an absolute path when using |
| * dir). Must not be <code>null</code>. |
| * @param fast Whether or not this call is part of a fast scan. |
| * |
| * @see #filesIncluded |
| * @see #filesNotIncluded |
| * @see #filesExcluded |
| * @see #dirsIncluded |
| * @see #dirsNotIncluded |
| * @see #dirsExcluded |
| * @see #slowScan |
| */ |
| protected void scandir(File dir, String vpath, boolean fast) { |
| if (dir == null) { |
| throw new BuildException("dir must not be null."); |
| } |
| String[] newfiles = dir.list(); |
| if (newfiles == null) { |
| if (!dir.exists()) { |
| throw new BuildException(dir + " doesn't exist."); |
| } else if (!dir.isDirectory()) { |
| throw new BuildException(dir + " is not a directory."); |
| } else { |
| throw new BuildException("IO error scanning directory '" |
| + dir.getAbsolutePath() + "'"); |
| } |
| } |
| scandir(dir, vpath, fast, newfiles); |
| } |
| private void scandir(File dir, String vpath, boolean fast, String[] newfiles) { |
| // avoid double scanning of directories, can only happen in fast mode |
| if (fast && hasBeenScanned(vpath)) { |
| return; |
| } |
| if (!followSymlinks) { |
| Vector noLinks = new Vector(); |
| for (int i = 0; i < newfiles.length; i++) { |
| try { |
| if (FILE_UTILS.isSymbolicLink(dir, newfiles[i])) { |
| String name = vpath + newfiles[i]; |
| File file = new File(dir, newfiles[i]); |
| (file.isDirectory() |
| ? dirsExcluded : filesExcluded).addElement(name); |
| } else { |
| noLinks.addElement(newfiles[i]); |
| } |
| } catch (IOException ioe) { |
| String msg = "IOException caught while checking " |
| + "for links, couldn't get canonical path!"; |
| // will be caught and redirected to Ant's logging system |
| System.err.println(msg); |
| noLinks.addElement(newfiles[i]); |
| } |
| } |
| newfiles = (String[]) (noLinks.toArray(new String[noLinks.size()])); |
| } |
| for (int i = 0; i < newfiles.length; i++) { |
| String name = vpath + newfiles[i]; |
| File file = new File(dir, newfiles[i]); |
| String[] children = file.list(); |
| if (children == null) { // probably file |
| if (isIncluded(name)) { |
| accountForIncludedFile(name, file); |
| } else { |
| everythingIncluded = false; |
| filesNotIncluded.addElement(name); |
| } |
| } else { // dir |
| if (isIncluded(name)) { |
| accountForIncludedDir(name, file, fast, children); |
| } else { |
| everythingIncluded = false; |
| dirsNotIncluded.addElement(name); |
| if (fast && couldHoldIncluded(name)) { |
| scandir(file, name + File.separator, fast, children); |
| } |
| } |
| if (!fast) { |
| scandir(file, name + File.separator, fast, children); |
| } |
| } |
| } |
| } |
| |
| /** |
| * Process included file. |
| * @param name path of the file relative to the directory of the FileSet. |
| * @param file included File. |
| */ |
| private void accountForIncludedFile(String name, File file) { |
| processIncluded(name, file, filesIncluded, filesExcluded, filesDeselected); |
| } |
| |
| /** |
| * Process included directory. |
| * @param name path of the directory relative to the directory of |
| * the FileSet. |
| * @param file directory as File. |
| * @param fast whether to perform fast scans. |
| */ |
| private void accountForIncludedDir(String name, File file, boolean fast) { |
| processIncluded(name, file, dirsIncluded, dirsExcluded, dirsDeselected); |
| if (fast && couldHoldIncluded(name) && !contentsExcluded(name)) { |
| scandir(file, name + File.separator, fast); |
| } |
| } |
| private void accountForIncludedDir(String name, File file, boolean fast, String[] children) { |
| processIncluded(name, file, dirsIncluded, dirsExcluded, dirsDeselected); |
| if (fast && couldHoldIncluded(name) && !contentsExcluded(name)) { |
| scandir(file, name + File.separator, fast, children); |
| } |
| } |
| |
| private void processIncluded(String name, File file, Vector inc, Vector exc, Vector des) { |
| |
| if (inc.contains(name) || exc.contains(name) || des.contains(name)) { return; } |
| |
| boolean included = false; |
| if (isExcluded(name)) { |
| exc.add(name); |
| } else if (isSelected(name, file)) { |
| included = true; |
| inc.add(name); |
| } else { |
| des.add(name); |
| } |
| everythingIncluded &= included; |
| } |
| |
| /** |
| * Test whether or not a name matches against at least one include |
| * pattern. |
| * |
| * @param name The name to match. Must not be <code>null</code>. |
| * @return <code>true</code> when the name matches against at least one |
| * include pattern, or <code>false</code> otherwise. |
| */ |
| protected boolean isIncluded(String name) { |
| ensureNonPatternSetsReady(); |
| |
| if (isCaseSensitive() |
| ? includeNonPatterns.contains(name) |
| : includeNonPatterns.contains(name.toUpperCase())) { |
| return true; |
| } |
| for (int i = 0; i < includePatterns.length; i++) { |
| if (matchPath(includePatterns[i], name, isCaseSensitive())) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * Test whether or not a name matches the start of at least one include |
| * pattern. |
| * |
| * @param name The name to match. Must not be <code>null</code>. |
| * @return <code>true</code> when the name matches against the start of at |
| * least one include pattern, or <code>false</code> otherwise. |
| */ |
| protected boolean couldHoldIncluded(String name) { |
| for (int i = 0; i < includes.length; i++) { |
| if (matchPatternStart(includes[i], name, isCaseSensitive()) |
| && isMorePowerfulThanExcludes(name, includes[i]) |
| && isDeeper(includes[i], name)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * Verify that a pattern specifies files deeper |
| * than the level of the specified file. |
| * @param pattern the pattern to check. |
| * @param name the name to check. |
| * @return whether the pattern is deeper than the name. |
| * @since Ant 1.6.3 |
| */ |
| private boolean isDeeper(String pattern, String name) { |
| Vector p = SelectorUtils.tokenizePath(pattern); |
| Vector n = SelectorUtils.tokenizePath(name); |
| return p.contains("**") || p.size() > n.size(); |
| } |
| |
| /** |
| * Find out whether one particular include pattern is more powerful |
| * than all the excludes. |
| * Note: the power comparison is based on the length of the include pattern |
| * and of the exclude patterns without the wildcards. |
| * Ideally the comparison should be done based on the depth |
| * of the match; that is to say how many file separators have been matched |
| * before the first ** or the end of the pattern. |
| * |
| * IMPORTANT : this function should return false "with care". |
| * |
| * @param name the relative path to test. |
| * @param includepattern one include pattern. |
| * @return true if there is no exclude pattern more powerful than this include pattern. |
| * @since Ant 1.6 |
| */ |
| private boolean isMorePowerfulThanExcludes(String name, String includepattern) { |
| String soughtexclude = name + File.separator + "**"; |
| for (int counter = 0; counter < excludes.length; counter++) { |
| if (excludes[counter].equals(soughtexclude)) { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| /** |
| * Test whether all contents of the specified directory must be excluded. |
| * @param name the directory name to check. |
| * @return whether all the specified directory's contents are excluded. |
| */ |
| private boolean contentsExcluded(String name) { |
| name = (name.endsWith(File.separator)) ? name : name + File.separator; |
| for (int i = 0; i < excludes.length; i++) { |
| String e = excludes[i]; |
| if (e.endsWith("**") && SelectorUtils.matchPath( |
| e.substring(0, e.length() - 2), name, isCaseSensitive())) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * Test whether or not a name matches against at least one exclude |
| * pattern. |
| * |
| * @param name The name to match. Must not be <code>null</code>. |
| * @return <code>true</code> when the name matches against at least one |
| * exclude pattern, or <code>false</code> otherwise. |
| */ |
| protected boolean isExcluded(String name) { |
| ensureNonPatternSetsReady(); |
| |
| if (isCaseSensitive() |
| ? excludeNonPatterns.contains(name) |
| : excludeNonPatterns.contains(name.toUpperCase())) { |
| return true; |
| } |
| for (int i = 0; i < excludePatterns.length; i++) { |
| if (matchPath(excludePatterns[i], name, isCaseSensitive())) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * Test whether a file should be selected. |
| * |
| * @param name the filename to check for selecting. |
| * @param file the java.io.File object for this filename. |
| * @return <code>false</code> when the selectors says that the file |
| * should not be selected, <code>true</code> otherwise. |
| */ |
| protected boolean isSelected(String name, File file) { |
| if (selectors != null) { |
| for (int i = 0; i < selectors.length; i++) { |
| if (!selectors[i].isSelected(basedir, name, file)) { |
| return false; |
| } |
| } |
| } |
| return true; |
| } |
| |
| /** |
| * Return 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 synchronized String[] getIncludedFiles() { |
| if (filesIncluded == null) { |
| throw new IllegalStateException("Must call scan() first"); |
| } |
| String[] files = new String[filesIncluded.size()]; |
| filesIncluded.copyInto(files); |
| Arrays.sort(files); |
| return files; |
| } |
| |
| /** |
| * Return the count of included files. |
| * @return <code>int</code>. |
| * @since Ant 1.6.3 |
| */ |
| public synchronized int getIncludedFilesCount() { |
| if (filesIncluded == null) { |
| throw new IllegalStateException("Must call scan() first"); |
| } |
| return filesIncluded.size(); |
| } |
| |
| /** |
| * Return 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 synchronized String[] getNotIncludedFiles() { |
| slowScan(); |
| String[] files = new String[filesNotIncluded.size()]; |
| filesNotIncluded.copyInto(files); |
| return files; |
| } |
| |
| /** |
| * Return 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 least one of the exclude patterns. |
| * |
| * @see #slowScan |
| */ |
| public synchronized String[] getExcludedFiles() { |
| slowScan(); |
| String[] files = new String[filesExcluded.size()]; |
| filesExcluded.copyInto(files); |
| return files; |
| } |
| |
| /** |
| * <p>Return the names of the files which were selected out and |
| * therefore not ultimately included.</p> |
| * |
| * <p>The names are relative to the base directory. This involves |
| * performing a slow scan if one has not already been completed.</p> |
| * |
| * @return the names of the files which were deselected. |
| * |
| * @see #slowScan |
| */ |
| public synchronized String[] getDeselectedFiles() { |
| slowScan(); |
| String[] files = new String[filesDeselected.size()]; |
| filesDeselected.copyInto(files); |
| return files; |
| } |
| |
| /** |
| * Return 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 synchronized String[] getIncludedDirectories() { |
| if (dirsIncluded == null) { |
| throw new IllegalStateException("Must call scan() first"); |
| } |
| String[] directories = new String[dirsIncluded.size()]; |
| dirsIncluded.copyInto(directories); |
| Arrays.sort(directories); |
| return directories; |
| } |
| |
| /** |
| * Return the count of included directories. |
| * @return <code>int</code>. |
| * @since Ant 1.6.3 |
| */ |
| public synchronized int getIncludedDirsCount() { |
| if (dirsIncluded == null) { |
| throw new IllegalStateException("Must call scan() first"); |
| } |
| return dirsIncluded.size(); |
| } |
| |
| /** |
| * Return 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 synchronized String[] getNotIncludedDirectories() { |
| slowScan(); |
| String[] directories = new String[dirsNotIncluded.size()]; |
| dirsNotIncluded.copyInto(directories); |
| return directories; |
| } |
| |
| /** |
| * Return 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 synchronized String[] getExcludedDirectories() { |
| slowScan(); |
| String[] directories = new String[dirsExcluded.size()]; |
| dirsExcluded.copyInto(directories); |
| return directories; |
| } |
| |
| /** |
| * <p>Return the names of the directories which were selected out and |
| * therefore not ultimately included.</p> |
| * |
| * <p>The names are relative to the base directory. This involves |
| * performing a slow scan if one has not already been completed.</p> |
| * |
| * @return the names of the directories which were deselected. |
| * |
| * @see #slowScan |
| */ |
| public synchronized String[] getDeselectedDirectories() { |
| slowScan(); |
| String[] directories = new String[dirsDeselected.size()]; |
| dirsDeselected.copyInto(directories); |
| return directories; |
| } |
| |
| /** |
| * Add default exclusions to the current exclusions set. |
| */ |
| public synchronized void addDefaultExcludes() { |
| int excludesLength = excludes == null ? 0 : excludes.length; |
| String[] newExcludes; |
| newExcludes = new String[excludesLength + defaultExcludes.size()]; |
| if (excludesLength > 0) { |
| System.arraycopy(excludes, 0, newExcludes, 0, excludesLength); |
| } |
| String[] defaultExcludesTemp = getDefaultExcludes(); |
| for (int i = 0; i < defaultExcludesTemp.length; i++) { |
| newExcludes[i + excludesLength] = |
| defaultExcludesTemp[i].replace('/', File.separatorChar) |
| .replace('\\', File.separatorChar); |
| } |
| excludes = newExcludes; |
| } |
| |
| /** |
| * Get the named resource. |
| * @param name path name of the file relative to the dir attribute. |
| * |
| * @return the resource with the given name. |
| * @since Ant 1.5.2 |
| */ |
| public synchronized Resource getResource(String name) { |
| return new FileResource(basedir, name); |
| } |
| |
| /** |
| * Return a cached result of list performed on file, if |
| * available. Invokes the method and caches the result otherwise. |
| * |
| * @param file File (dir) to list. |
| * @since Ant 1.6 |
| */ |
| private String[] list(File file) { |
| String[] files = (String[]) fileListMap.get(file); |
| if (files == null) { |
| files = file.list(); |
| if (files != null) { |
| fileListMap.put(file, files); |
| } |
| } |
| return files; |
| } |
| |
| /** |
| * From <code>base</code> traverse the filesystem in order to find |
| * a file that matches the given name. |
| * |
| * @param base base File (dir). |
| * @param path file path. |
| * @param cs whether to scan case-sensitively. |
| * @return File object that points to the file in question or null. |
| * |
| * @since Ant 1.6.3 |
| */ |
| private File findFile(File base, String path, boolean cs) { |
| if (FileUtils.isAbsolutePath(path)) { |
| if (base == null) { |
| String[] s = FILE_UTILS.dissect(path); |
| base = new File(s[0]); |
| path = s[1]; |
| } else { |
| File f = FILE_UTILS.normalize(path); |
| String s = FILE_UTILS.removeLeadingPath(base, f); |
| if (s.equals(f.getAbsolutePath())) { |
| //removing base from path yields no change; path not child of base |
| return null; |
| } |
| path = s; |
| } |
| } |
| return findFile(base, SelectorUtils.tokenizePath(path), cs); |
| } |
| |
| /** |
| * From <code>base</code> traverse the filesystem in order to find |
| * a file that matches the given stack of names. |
| * |
| * @param base base File (dir). |
| * @param pathElements Vector of path elements (dirs...file). |
| * @param cs whether to scan case-sensitively. |
| * @return File object that points to the file in question or null. |
| * |
| * @since Ant 1.6.3 |
| */ |
| private File findFile(File base, Vector pathElements, boolean cs) { |
| if (pathElements.size() == 0) { |
| return base; |
| } |
| String current = (String) pathElements.remove(0); |
| if (base == null) { |
| return findFile(new File(current), pathElements, cs); |
| } |
| if (!base.isDirectory()) { |
| return null; |
| } |
| String[] files = list(base); |
| if (files == null) { |
| throw new BuildException("IO error scanning directory " |
| + base.getAbsolutePath()); |
| } |
| boolean[] matchCase = cs ? CS_SCAN_ONLY : CS_THEN_NON_CS; |
| for (int i = 0; i < matchCase.length; i++) { |
| for (int j = 0; j < files.length; j++) { |
| if (matchCase[i] ? files[j].equals(current) |
| : files[j].equalsIgnoreCase(current)) { |
| return findFile(new File(base, files[j]), pathElements, cs); |
| } |
| } |
| } |
| return null; |
| } |
| |
| /** |
| * Do we have to traverse a symlink when trying to reach path from |
| * basedir? |
| * @param base base File (dir). |
| * @param path file path. |
| * @since Ant 1.6 |
| */ |
| private boolean isSymlink(File base, String path) { |
| return isSymlink(base, SelectorUtils.tokenizePath(path)); |
| } |
| |
| /** |
| * Do we have to traverse a symlink when trying to reach path from |
| * basedir? |
| * @param base base File (dir). |
| * @param pathElements Vector of path elements (dirs...file). |
| * @since Ant 1.6 |
| */ |
| private boolean isSymlink(File base, Vector pathElements) { |
| if (pathElements.size() > 0) { |
| String current = (String) pathElements.remove(0); |
| try { |
| return FILE_UTILS.isSymbolicLink(base, current) |
| || isSymlink(new File(base, current), pathElements); |
| } catch (IOException ioe) { |
| String msg = "IOException caught while checking " |
| + "for links, couldn't get canonical path!"; |
| // will be caught and redirected to Ant's logging system |
| System.err.println(msg); |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * Has the directory with the given path relative to the base |
| * directory already been scanned? |
| * |
| * <p>Registers the given directory as scanned as a side effect.</p> |
| * |
| * @since Ant 1.6 |
| */ |
| private boolean hasBeenScanned(String vpath) { |
| return !scannedDirs.add(vpath); |
| } |
| |
| /** |
| * This method is of interest for testing purposes. The returned |
| * Set is live and should not be modified. |
| * @return the Set of relative directory names that have been scanned. |
| */ |
| /* package-private */ Set getScannedDirs() { |
| return scannedDirs; |
| } |
| |
| /** |
| * Clear internal caches. |
| * |
| * @since Ant 1.6 |
| */ |
| private synchronized void clearCaches() { |
| fileListMap.clear(); |
| includeNonPatterns.clear(); |
| excludeNonPatterns.clear(); |
| includePatterns = null; |
| excludePatterns = null; |
| areNonPatternSetsReady = false; |
| } |
| |
| /** |
| * Ensure that the in|exclude "patterns" |
| * have been properly divided up. |
| * |
| * @since Ant 1.6.3 |
| */ |
| private synchronized void ensureNonPatternSetsReady() { |
| if (!areNonPatternSetsReady) { |
| includePatterns = fillNonPatternSet(includeNonPatterns, includes); |
| excludePatterns = fillNonPatternSet(excludeNonPatterns, excludes); |
| areNonPatternSetsReady = true; |
| } |
| } |
| |
| /** |
| * Add all patterns that are not real patterns (do not contain |
| * wildcards) to the set and returns the real patterns. |
| * |
| * @param set Set to populate. |
| * @param patterns String[] of patterns. |
| * @since Ant 1.6.3 |
| */ |
| private String[] fillNonPatternSet(Set set, String[] patterns) { |
| ArrayList al = new ArrayList(patterns.length); |
| for (int i = 0; i < patterns.length; i++) { |
| if (!SelectorUtils.hasWildcards(patterns[i])) { |
| set.add(isCaseSensitive() ? patterns[i] |
| : patterns[i].toUpperCase()); |
| } else { |
| al.add(patterns[i]); |
| } |
| } |
| return set.size() == 0 ? patterns |
| : (String[]) al.toArray(new String[al.size()]); |
| } |
| |
| } |
