mirror of
https://github.com/revanced/smali.git
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Add a utility method for constructing a relative path
git-svn-id: https://smali.googlecode.com/svn/trunk@754 55b6fa8a-2a1e-11de-a435-ffa8d773f76a
This commit is contained in:
JesusFreke@JesusFreke.com
@ -16,5 +16,10 @@
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<artifactId>commons-cli</artifactId>
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<version>1.2</version>
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</dependency>
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<dependency>
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<groupId>junit</groupId>
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<artifactId>junit</artifactId>
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<version>4.6</version>
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</dependency>
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</dependencies>
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</project>
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125
util/src/main/java/org/jf/util/PathUtil.java
Normal file
125
util/src/main/java/org/jf/util/PathUtil.java
Normal file
@ -0,0 +1,125 @@
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/*
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* [The "BSD licence"]
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* Copyright (c) 2010 Ben Gruver
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package org.jf.util;
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import java.io.File;
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import java.io.IOException;
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import java.util.ArrayList;
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public class PathUtil {
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private PathUtil() {
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}
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public static File getRelativeFile(File baseFile, File fileToRelativize) throws IOException {
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if (baseFile.isFile()) {
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baseFile = baseFile.getParentFile();
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}
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return new File(getRelativeFileInternal(baseFile.getCanonicalFile(), fileToRelativize.getCanonicalFile()));
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}
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public static String getRelativePath(String basePath, String pathToRelativize) throws IOException {
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File baseFile = new File(basePath);
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if (baseFile.isFile()) {
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baseFile = baseFile.getParentFile();
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}
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return getRelativeFileInternal(baseFile.getCanonicalFile(),
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new File(pathToRelativize).getCanonicalFile());
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}
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static String getRelativeFileInternal(File canonicalBaseFile, File canonicalFileToRelativize) {
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ArrayList<String> basePath = getPathComponents(canonicalBaseFile);
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ArrayList<String> pathToRelativize = getPathComponents(canonicalFileToRelativize);
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//if the roots aren't the same (i.e. different drives on a windows machine), we can't construct a relative
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//path from one to the other, so just return the canonical file
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if (!basePath.get(0).equals(pathToRelativize.get(0))) {
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return canonicalFileToRelativize.getPath();
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}
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int commonDirs;
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StringBuilder sb = new StringBuilder();
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for (commonDirs=1; commonDirs<basePath.size() && commonDirs<pathToRelativize.size(); commonDirs++) {
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if (!basePath.get(commonDirs).equals(pathToRelativize.get(commonDirs))) {
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break;
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}
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}
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boolean first = true;
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for (int i=commonDirs; i<basePath.size(); i++) {
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if (!first) {
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sb.append(File.separatorChar);
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} else {
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first = false;
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}
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sb.append("..");
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}
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first = true;
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for (int i=commonDirs; i<pathToRelativize.size(); i++) {
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if (first) {
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if (sb.length() != 0) {
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sb.append(File.separatorChar);
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}
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first = false;
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} else {
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sb.append(File.separatorChar);
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}
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sb.append(pathToRelativize.get(i));
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}
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if (sb.length() == 0) {
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return ".";
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}
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return sb.toString();
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}
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private static ArrayList<String> getPathComponents(File file) {
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ArrayList<String> path = new ArrayList<String>();
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while (file != null) {
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File parentFile = file.getParentFile();
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if (parentFile == null) {
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path.add(0, file.getPath());
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} else {
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path.add(0, file.getName());
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}
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file = parentFile;
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}
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return path;
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}
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}
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269
util/src/test/java/org/jf/util/PathUtilTest.java
Normal file
269
util/src/test/java/org/jf/util/PathUtilTest.java
Normal file
@ -0,0 +1,269 @@
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/*
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* [The "BSD licence"]
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* Copyright (c) 2010 Ben Gruver
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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||||
* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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||||
*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package org.jf.util;
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import org.junit.*;
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import java.io.File;
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public class PathUtilTest {
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@Test
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public void pathUtilTest1() {
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File[] roots = File.listRoots();
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if (roots.length > 1) {
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File basePath = new File(roots[0] + "some" + File.separatorChar + "dir" + File.separatorChar + "test.txt");
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File relativePath = new File(roots[1] + "some" + File.separatorChar + "dir" + File.separatorChar + "test.txt");
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String path = PathUtil.getRelativeFileInternal(basePath, relativePath);
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Assert.assertEquals(path, relativePath.getPath());
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}
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}
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@Test
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public void pathUtilTest2() {
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File[] roots = File.listRoots();
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File basePath = new File(roots[0] + "some" + File.separatorChar + "dir" + File.separatorChar + "test.txt");
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File relativePath = new File(roots[0] + "some" + File.separatorChar + "dir" + File.separatorChar + "test.txt");
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String path = PathUtil.getRelativeFileInternal(basePath, relativePath);
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/*the "internal" version of the method in PathUtil doesn't handle the case when the "leaf" of the base path
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is a file, this is handled by the two public wrappers. Since we're not calling them, the correct return is
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a single dot"*/
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Assert.assertEquals(path, ".");
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}
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@Test
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public void pathUtilTest3() {
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File[] roots = File.listRoots();
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File basePath = new File(roots[0] + "some" + File.separatorChar + "dir" + File.separatorChar);
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File relativePath = new File(roots[0] + "some" + File.separatorChar + "dir" + File.separatorChar);
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String path = PathUtil.getRelativeFileInternal(basePath, relativePath);
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Assert.assertEquals(path, ".");
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}
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@Test
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public void pathUtilTest4() {
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File[] roots = File.listRoots();
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File basePath = new File(roots[0] + "some" + File.separatorChar + "dir");
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File relativePath = new File(roots[0] + "some" + File.separatorChar + "dir");
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String path = PathUtil.getRelativeFileInternal(basePath, relativePath);
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Assert.assertEquals(path, ".");
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}
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@Test
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public void pathUtilTest5() {
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File[] roots = File.listRoots();
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File basePath = new File(roots[0] + "some" + File.separatorChar + "dir");
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File relativePath = new File(roots[0] + "some" + File.separatorChar + "dir" + File.separatorChar);
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String path = PathUtil.getRelativeFileInternal(basePath, relativePath);
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Assert.assertEquals(path, ".");
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}
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@Test
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public void pathUtilTest6() {
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File[] roots = File.listRoots();
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File basePath = new File(roots[0] + "some" + File.separatorChar + "dir" + File.separatorChar);
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File relativePath = new File(roots[0] + "some" + File.separatorChar + "dir");
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String path = PathUtil.getRelativeFileInternal(basePath, relativePath);
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Assert.assertEquals(path, ".");
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}
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@Test
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public void pathUtilTest7() {
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File[] roots = File.listRoots();
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File basePath = new File(roots[0] + "some");
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File relativePath = new File(roots[0] + "some" + File.separatorChar + "dir");
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String path = PathUtil.getRelativeFileInternal(basePath, relativePath);
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Assert.assertEquals(path, "dir");
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}
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@Test
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public void pathUtilTest8() {
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File[] roots = File.listRoots();
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File basePath = new File(roots[0] + "some" + File.separatorChar);
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File relativePath = new File(roots[0] + "some" + File.separatorChar + "dir" + File.separatorChar);
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String path = PathUtil.getRelativeFileInternal(basePath, relativePath);
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Assert.assertEquals(path, "dir");
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}
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@Test
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public void pathUtilTest9() {
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File[] roots = File.listRoots();
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File basePath = new File(roots[0] + "some");
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File relativePath = new File(roots[0] + "some" + File.separatorChar + "dir" + File.separatorChar);
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String path = PathUtil.getRelativeFileInternal(basePath, relativePath);
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Assert.assertEquals(path, "dir");
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}
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@Test
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public void pathUtilTest10() {
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File[] roots = File.listRoots();
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File basePath = new File(roots[0] + "some" + File.separatorChar);
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File relativePath = new File(roots[0] + "some" + File.separatorChar + "dir");
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String path = PathUtil.getRelativeFileInternal(basePath, relativePath);
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Assert.assertEquals(path, "dir");
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}
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@Test
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public void pathUtilTest11() {
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File[] roots = File.listRoots();
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File basePath = new File(roots[0] + "some");
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File relativePath = new File(roots[0] + "some" + File.separatorChar + "dir" + File.separatorChar + "dir2");
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String path = PathUtil.getRelativeFileInternal(basePath, relativePath);
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Assert.assertEquals(path, "dir" + File.separatorChar + "dir2");
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}
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@Test
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public void pathUtilTest12() {
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File[] roots = File.listRoots();
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File basePath = new File(roots[0] + "some" + File.separatorChar);
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File relativePath = new File(roots[0] + "some" + File.separatorChar + "dir" + File.separatorChar + "dir2" + File.separatorChar);
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String path = PathUtil.getRelativeFileInternal(basePath, relativePath);
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Assert.assertEquals(path, "dir" + File.separatorChar + "dir2");
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}
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@Test
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public void pathUtilTest13() {
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File[] roots = File.listRoots();
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File basePath = new File(roots[0] + "some");
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File relativePath = new File(roots[0] + "some" + File.separatorChar + "dir" + File.separatorChar + "dir2" + File.separatorChar);
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String path = PathUtil.getRelativeFileInternal(basePath, relativePath);
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Assert.assertEquals(path, "dir" + File.separatorChar + "dir2");
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}
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@Test
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public void pathUtilTest14() {
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File[] roots = File.listRoots();
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File basePath = new File(roots[0] + "some" + File.separatorChar);
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File relativePath = new File(roots[0] + "some" + File.separatorChar + "dir" + File.separatorChar + "dir2");
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String path = PathUtil.getRelativeFileInternal(basePath, relativePath);
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Assert.assertEquals(path, "dir" + File.separatorChar + "dir2");
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}
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@Test
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public void pathUtilTest15() {
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File[] roots = File.listRoots();
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File basePath = new File(roots[0] + "some" + File.separatorChar + "dir3");
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File relativePath = new File(roots[0] + "some" + File.separatorChar + "dir" + File.separatorChar + "dir2");
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String path = PathUtil.getRelativeFileInternal(basePath, relativePath);
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Assert.assertEquals(path, ".." + File.separatorChar + "dir" + File.separatorChar + "dir2");
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}
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@Test
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public void pathUtilTest16() {
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File[] roots = File.listRoots();
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File basePath = new File(roots[0] + "some2" + File.separatorChar + "dir3");
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File relativePath = new File(roots[0] + "some" + File.separatorChar + "dir" + File.separatorChar + "dir2");
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String path = PathUtil.getRelativeFileInternal(basePath, relativePath);
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Assert.assertEquals(path, ".." + File.separatorChar + ".." + File.separatorChar + "some" + File.separatorChar + "dir" + File.separatorChar + "dir2");
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}
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@Test
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public void pathUtilTest17() {
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File[] roots = File.listRoots();
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File basePath = new File(roots[0].getPath());
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File relativePath = new File(roots[0] + "some" + File.separatorChar + "dir" + File.separatorChar + "dir2");
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String path = PathUtil.getRelativeFileInternal(basePath, relativePath);
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Assert.assertEquals(path, "some" + File.separatorChar + "dir" + File.separatorChar + "dir2");
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}
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@Test
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public void pathUtilTest18() {
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File[] roots = File.listRoots();
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File basePath = new File(roots[0] + "some" + File.separatorChar + "dir");
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File relativePath = new File(roots[0] + "some");
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String path = PathUtil.getRelativeFileInternal(basePath, relativePath);
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Assert.assertEquals(path, "..");
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}
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@Test
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public void pathUtilTest19() {
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File[] roots = File.listRoots();
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File basePath = new File(roots[0] + "some" + File.separatorChar + "dir" + File.separatorChar + "dir2");
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File relativePath = new File(roots[0] + "some");
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String path = PathUtil.getRelativeFileInternal(basePath, relativePath);
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Assert.assertEquals(path, ".." + File.separatorChar + "..");
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}
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}
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Block a user