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/*
* Copyright (C) 2014, Obeo. and others
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Distribution License v. 1.0 which is available at
* https://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
package org.eclipse.jgit.attributes;
import static java.util.Arrays.asList;
import static org.hamcrest.CoreMatchers.hasItem;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
import java.io.File;
import java.io.IOException;
import java.util.Collections;
import java.util.List;
import org.eclipse.jgit.attributes.Attribute.State;
import org.eclipse.jgit.junit.JGitTestUtil;
import org.eclipse.jgit.junit.RepositoryTestCase;
import org.eclipse.jgit.lib.FileMode;
import org.eclipse.jgit.treewalk.CanonicalTreeParser;
import org.eclipse.jgit.treewalk.FileTreeIterator;
import org.eclipse.jgit.treewalk.TreeWalk;
import org.eclipse.jgit.treewalk.WorkingTreeIterator;
import org.junit.Test;
/**
* Tests attributes node behavior on the local filesystem.
*/
public class AttributesNodeWorkingTreeIteratorTest extends RepositoryTestCase {
private static final FileMode D = FileMode.TREE;
private static final FileMode F = FileMode.REGULAR_FILE;
private static Attribute EOL_LF = new Attribute("eol", "lf");
private static Attribute DELTA_UNSET = new Attribute("delta", State.UNSET);
@Test
public void testRules() throws Exception {
File customAttributeFile = File.createTempFile("tmp_",
"customAttributeFile", null);
customAttributeFile.deleteOnExit();
JGitTestUtil.write(customAttributeFile, "*.txt custom=value");
db.getConfig().setString("core", null, "attributesfile",
customAttributeFile.getAbsolutePath());
writeAttributesFile(".git/info/attributes", "windows* eol=crlf");
writeAttributesFile(".gitattributes", "*.txt eol=lf");
writeTrashFile("windows.file", "");
writeTrashFile("windows.txt", "");
writeTrashFile("global.txt", "");
writeTrashFile("readme.txt", "");
writeAttributesFile("src/config/.gitattributes", "*.txt -delta");
writeTrashFile("src/config/readme.txt", "");
writeTrashFile("src/config/windows.file", "");
writeTrashFile("src/config/windows.txt", "");
try (TreeWalk walk = beginWalk()) {
assertIteration(walk, F, ".gitattributes");
assertIteration(walk, F, "global.txt", asList(EOL_LF));
assertIteration(walk, F, "readme.txt", asList(EOL_LF));
assertIteration(walk, D, "src");
assertIteration(walk, D, "src/config");
assertIteration(walk, F, "src/config/.gitattributes");
assertIteration(walk, F, "src/config/readme.txt",
asList(DELTA_UNSET));
assertIteration(walk, F, "src/config/windows.file", null);
assertIteration(walk, F, "src/config/windows.txt",
asList(DELTA_UNSET));
assertIteration(walk, F, "windows.file", null);
assertIteration(walk, F, "windows.txt", asList(EOL_LF));
assertFalse("Not all files tested", walk.next());
}
}
/**
* Checks that if there is no .gitattributes file in the repository
* everything still work fine.
*
* @throws Exception
*/
@Test
public void testNoAttributes() throws Exception {
writeTrashFile("l0.txt", "");
writeTrashFile("level1/l1.txt", "");
writeTrashFile("level1/level2/l2.txt", "");
try (TreeWalk walk = beginWalk()) {
assertIteration(walk, F, "l0.txt");
assertIteration(walk, D, "level1");
assertIteration(walk, F, "level1/l1.txt");
assertIteration(walk, D, "level1/level2");
assertIteration(walk, F, "level1/level2/l2.txt");
assertFalse("Not all files tested", walk.next());
}
}
/**
* Checks that empty .gitattribute files do not return incorrect value.
*
* @throws Exception
*/
@Test
public void testEmptyGitAttributeFile() throws Exception {
writeAttributesFile(".git/info/attributes", "");
writeTrashFile("l0.txt", "");
writeAttributesFile(".gitattributes", "");
writeTrashFile("level1/l1.txt", "");
writeTrashFile("level1/level2/l2.txt", "");
try (TreeWalk walk = beginWalk()) {
assertIteration(walk, F, ".gitattributes");
assertIteration(walk, F, "l0.txt");
assertIteration(walk, D, "level1");
assertIteration(walk, F, "level1/l1.txt");
assertIteration(walk, D, "level1/level2");
assertIteration(walk, F, "level1/level2/l2.txt");
assertFalse("Not all files tested", walk.next());
}
}
@Test
public void testNoMatchingAttributes() throws Exception {
writeAttributesFile(".git/info/attributes", "*.java delta");
writeAttributesFile(".gitattributes", "*.java -delta");
writeAttributesFile("levelA/.gitattributes", "*.java eol=lf");
writeAttributesFile("levelB/.gitattributes", "*.txt eol=lf");
writeTrashFile("levelA/lA.txt", "");
try (TreeWalk walk = beginWalk()) {
assertIteration(walk, F, ".gitattributes");
assertIteration(walk, D, "levelA");
assertIteration(walk, F, "levelA/.gitattributes");
assertIteration(walk, F, "levelA/lA.txt");
assertIteration(walk, D, "levelB");
assertIteration(walk, F, "levelB/.gitattributes");
assertFalse("Not all files tested", walk.next());
}
}
private void assertIteration(TreeWalk walk, FileMode type, String pathName)
throws IOException {
assertIteration(walk, type, pathName,
Collections.<Attribute> emptyList());
}
private void assertIteration(TreeWalk walk, FileMode type, String pathName,
List<Attribute> nodeAttrs)
throws IOException {
assertTrue("walk has entry", walk.next());
assertEquals(pathName, walk.getPathString());
assertEquals(type, walk.getFileMode(0));
WorkingTreeIterator itr = walk.getTree(0, WorkingTreeIterator.class);
assertNotNull("has tree", itr);
AttributesNode attributesNode = itr.getEntryAttributesNode();
assertAttributesNode(walk, pathName, attributesNode, nodeAttrs);
if (D.equals(type))
walk.enterSubtree();
}
private void assertAttributesNode(TreeWalk walk, String pathName,
AttributesNode attributesNode, List<Attribute> nodeAttrs)
throws IOException {
if (attributesNode == null)
assertTrue(nodeAttrs == null || nodeAttrs.isEmpty());
else {
Attributes entryAttributes = new Attributes();
new AttributesHandler(walk,
() -> walk.getTree(CanonicalTreeParser.class))
.mergeAttributes(attributesNode, pathName, false,
entryAttributes);
if (nodeAttrs != null && !nodeAttrs.isEmpty()) {
for (Attribute attribute : nodeAttrs) {
assertThat(entryAttributes.getAll(),
hasItem(attribute));
}
} else {
assertTrue(
"The entry "
+ pathName
+ " should not have any attributes. Instead, the following attributes are applied to this file "
+ entryAttributes.toString(),
entryAttributes.isEmpty());
}
}
}
private void writeAttributesFile(String name, String... rules)
throws IOException {
StringBuilder data = new StringBuilder();
for (String line : rules)
data.append(line + "\n");
writeTrashFile(name, data.toString());
}
private TreeWalk beginWalk() {
TreeWalk newWalk = new TreeWalk(db);
newWalk.addTree(new FileTreeIterator(db));
return newWalk;
}
}
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