/*
* Copyright (C) 2007, Dave Watson <dwatson@mimvista.com>
* Copyright (C) 2008, Robin Rosenberg <robin.rosenberg@dewire.com>
* Copyright (C) 2008, Shawn O. Pearce <spearce@spearce.org>
* Copyright (C) 2013, Robin Stocker <robin@nibor.org>
* and other copyright owners as documented in the project's IP log.
*
* This program and the accompanying materials are made available
* under the terms of the Eclipse Distribution License v1.0 which
* accompanies this distribution, is reproduced below, and is
* available at http://www.eclipse.org/org/documents/edl-v10.php
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - 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.
*
* - Neither the name of the Eclipse Foundation, Inc. nor the
* names of its contributors may be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS 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 COPYRIGHT OWNER OR
* 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.
*/
package org.eclipse.jgit.lib;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashSet;
import java.util.TreeSet;
import org.eclipse.jgit.api.Git;
import org.eclipse.jgit.api.MergeResult;
import org.eclipse.jgit.api.MergeResult.MergeStatus;
import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.dircache.DirCache;
import org.eclipse.jgit.dircache.DirCacheBuilder;
import org.eclipse.jgit.dircache.DirCacheEditor;
import org.eclipse.jgit.dircache.DirCacheEditor.PathEdit;
import org.eclipse.jgit.dircache.DirCacheEntry;
import org.eclipse.jgit.junit.RepositoryTestCase;
import org.eclipse.jgit.lib.CoreConfig.AutoCRLF;
import org.eclipse.jgit.lib.IndexDiff.StageState;
import org.eclipse.jgit.merge.MergeStrategy;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.storage.file.FileBasedConfig;
import org.eclipse.jgit.treewalk.FileTreeIterator;
import org.eclipse.jgit.util.IO;
import org.junit.Test;
public class IndexDiffTest extends RepositoryTestCase {
static PathEdit add(final Repository db, final File workdir,
final String path) throws FileNotFoundException, IOException {
ObjectInserter inserter = db.newObjectInserter();
final File f = new File(workdir, path);
final ObjectId id = inserter.insert(Constants.OBJ_BLOB,
IO.readFully(f));
return new PathEdit(path) {
public void apply(DirCacheEntry ent) {
ent.setFileMode(FileMode.REGULAR_FILE);
ent.setLength(f.length());
ent.setObjectId(id);
}
};
}
@Test
public void testAdded() throws IOException {
writeTrashFile("file1", "file1");
writeTrashFile("dir/subfile", "dir/subfile");
ObjectId tree = insertTree(new TreeFormatter());
DirCache index = db.lockDirCache();
DirCacheEditor editor = index.editor();
editor.add(add(db, trash, "file1"));
editor.add(add(db, trash, "dir/subfile"));
editor.commit();
FileTreeIterator iterator = new FileTreeIterator(db);
IndexDiff diff = new IndexDiff(db, tree, iterator);
diff.diff();
assertEquals(2, diff.getAdded().size());
assertTrue(diff.getAdded().contains("file1"));
assertTrue(diff.getAdded().contains("dir/subfile"));
assertEquals(0, diff.getChanged().size());
assertEquals(0, diff.getModified().size());
assertEquals(0, diff.getRemoved().size());
assertEquals(Collections.EMPTY_SET, diff.getUntrackedFolders());
}
@Test
public void testRemoved() throws IOException {
writeTrashFile("file2", "file2");
writeTrashFile("dir/file3", "dir/file3");
TreeFormatter dir = new TreeFormatter();
dir.append("file3", FileMode.REGULAR_FILE, ObjectId.fromString("873fb8d667d05436d728c52b1d7a09528e6eb59b"));
TreeFormatter tree = new TreeFormatter();
tree.append("file2", FileMode.REGULAR_FILE, ObjectId.fromString("30d67d4672d5c05833b7192cc77a79eaafb5c7ad"));
tree.append("dir", FileMode.TREE, insertTree(dir));
ObjectId treeId = insertTree(tree);
FileTreeIterator iterator = new FileTreeIterator(db);
IndexDiff diff = new IndexDiff(db, treeId, iterator);
diff.diff();
assertEquals(2, diff.getRemoved().size());
assertTrue(diff.getRemoved().contains("file2"));
assertTrue(diff.getRemoved().contains("dir/file3"));
assertEquals(0, diff.getChanged().size());
assertEquals(0, diff.getModified().size());
assertEquals(0, diff.getAdded().size());
assertEquals(Collections.EMPTY_SET, diff.getUntrackedFolders());
}
@Test
public void testModified() throws IOException, GitAPIException {
writeTrashFile("file2", "file2");
writeTrashFile("dir/file3", "dir/file3");
try (Git git = new Git(db)) {
git.add().addFilepattern("file2").addFilepattern("dir/file3").call();
}
writeTrashFile("dir/file3", "changed");
TreeFormatter dir = new TreeFormatter();
dir.append("file3", FileMode.REGULAR_FILE, ObjectId.fromString("0123456789012345678901234567890123456789"));
TreeFormatter tree = new TreeFormatter();
tree.append("dir", FileMode.TREE, insertTree(dir));
tree.append("file2", FileMode.REGULAR_FILE, ObjectId.fromString("0123456789012345678901234567890123456789"));
ObjectId treeId = insertTree(tree);
FileTreeIterator iterator = new FileTreeIterator(db);
IndexDiff diff = new IndexDiff(db, treeId, iterator);
diff.diff();
assertEquals(2, diff.getChanged().size());
assertTrue(diff.getChanged().contains("file2"));
assertTrue(diff.getChanged().contains("dir/file3"));
assertEquals(1, diff.getModified().size());
assertTrue(diff.getModified().contains("dir/file3"));
assertEquals(0, diff.getAdded().size());
assertEquals(0, diff.getRemoved().size());
assertEquals(0, diff.getMissing().size());
assertEquals(Collections.EMPTY_SET, diff.getUntrackedFolders());
}
@Test
public void testConflicting() throws Exception {
try (Git git = new Git(db)) {
writeTrashFile("a", "1\na\n3\n");
writeTrashFile("b", "1\nb\n3\n");
git.add().addFilepattern("a").addFilepattern("b").call();
RevCommit initialCommit = git.commit().setMessage("initial").call();
// create side branch with two modifications
createBranch(initialCommit, "refs/heads/side");
checkoutBranch("refs/heads/side");
writeTrashFile("a", "1\na(side)\n3\n");
writeTrashFile("b", "1\nb\n3\n(side)");
git.add().addFilepattern("a").addFilepattern("b").call();
RevCommit secondCommit = git.commit().setMessage("side").call();
// update a on master to generate conflict
checkoutBranch("refs/heads/master");
writeTrashFile("a", "1\na(main)\n3\n");
git.add().addFilepattern("a").call();
git.commit().setMessage("main").call();
// merge side with master
MergeResult result = git.merge().include(secondCommit.getId())
.setStrategy(MergeStrategy.RESOLVE).call();
assertEquals(MergeStatus.CONFLICTING, result.getMergeStatus());
}
FileTreeIterator iterator = new FileTreeIterator(db);
IndexDiff diff = new IndexDiff(db, Constants.HEAD, iterator);
diff.diff();
assertEquals("[b]",
new TreeSet<String>(diff.getChanged()).toString());
assertEquals("[]", diff.getAdded().toString());
assertEquals("[]", diff.getRemoved().toString());
assertEquals("[]", diff.getMissing().toString());
assertEquals("[]", diff.getModified().toString());
assertEquals("[a]", diff.getConflicting().toString());
assertEquals(StageState.BOTH_MODIFIED,
diff.getConflictingStageStates().get("a"));
assertEquals(Collections.EMPTY_SET, diff.getUntrackedFolders());
}
@Test
public void testConflictingDeletedAndModified() throws Exception {
try (Git git = new Git(db)) {
writeTrashFile("a", "1\na\n3\n");
writeTrashFile("b", "1\nb\n3\n");
git.add().addFilepattern("a").addFilepattern("b").call();
RevCommit initialCommit = git.commit().setMessage("initial").call();
// create side branch and delete "a"
createBranch(initialCommit, "refs/heads/side");
checkoutBranch("refs/heads/side");
git.rm().addFilepattern("a").call();
RevCommit secondCommit = git.commit().setMessage("side").call();
// update a on master to generate conflict
checkoutBranch("refs/heads/master");
writeTrashFile("a", "1\na(main)\n3\n");
git.add().addFilepattern("a").call();
git.commit().setMessage("main").call();
// merge side with master
MergeResult result = git.merge().include(secondCommit.getId())
.setStrategy(MergeStrategy.RESOLVE).call();
assertEquals(MergeStatus.CONFLICTING, result.getMergeStatus());
}
FileTreeIterator iterator = new FileTreeIterator(db);
IndexDiff diff = new IndexDiff(db, Constants.HEAD, iterator);
diff.diff();
assertEquals("[]", new TreeSet<String>(diff.getChanged()).toString());
assertEquals("[]", diff.getAdded().toString());
assertEquals("[]", diff.getRemoved().toString());
assertEquals("[]", diff.getMissing().toString());
assertEquals("[]", diff.getModified().toString());
assertEquals("[a]", diff.getConflicting().toString());
assertEquals(StageState.DELETED_BY_THEM,
diff.getConflictingStageStates().get("a"));
assertEquals(Collections.EMPTY_SET, diff.getUntrackedFolders());
}
@Test
public void testConflictingFromMultipleCreations() throws Exception {
try (Git git = new Git(db)) {
writeTrashFile("a", "1\na\n3\n");
git.add().addFilepattern("a").call();
RevCommit initialCommit = git.commit().setMessage("initial").call();
createBranch(initialCommit, "refs/heads/side");
checkoutBranch("refs/heads/side");
writeTrashFile("b", "1\nb(side)\n3\n");
git.add().addFilepattern("b").call();
RevCommit secondCommit = git.commit().setMessage("side").call();
checkoutBranch("refs/heads/master");
writeTrashFile("b", "1\nb(main)\n3\n");
git.add().addFilepattern("b").call();
git.commit().setMessage("main").call();
MergeResult result = git.merge().include(secondCommit.getId())
.setStrategy(MergeStrategy.RESOLVE).call();
assertEquals(MergeStatus.CONFLICTING, result.getMergeStatus());
}
FileTreeIterator iterator = new FileTreeIterator(db);
IndexDiff diff = new IndexDiff(db, Constants.HEAD, iterator);
diff.diff();
assertEquals("[]", new TreeSet<String>(diff.getChanged()).toString());
assertEquals("[]", diff.getAdded().toString());
assertEquals("[]", diff.getRemoved().toString());
assertEquals("[]", diff.getMissing().toString());
assertEquals("[]", diff.getModified().toString());
assertEquals("[b]", diff.getConflicting().toString());
assertEquals(Collections.EMPTY_SET, diff.getUntrackedFolders());
}
@Test
public void testUnchangedSimple() throws IOException, GitAPIException {
writeTrashFile("a.b", "a.b");
writeTrashFile("a.c", "a.c");
writeTrashFile("a=c", "a=c");
writeTrashFile("a=d", "a=d");
try (Git git = new Git(db)) {
git.add().addFilepattern("a.b").call();
git.add().addFilepattern("a.c").call();
git.add().addFilepattern("a=c").call();
git.add().addFilepattern("a=d").call();
}
TreeFormatter tree = new TreeFormatter();
// got the hash id'd from the data using echo -n a.b|git hash-object -t blob --stdin
tree.append("a.b", FileMode.REGULAR_FILE, ObjectId.fromString("f6f28df96c2b40c951164286e08be7c38ec74851"));
tree.append("a.c", FileMode.REGULAR_FILE, ObjectId.fromString("6bc0e647512d2a0bef4f26111e484dc87df7f5ca"));
tree.append("a=c", FileMode.REGULAR_FILE, ObjectId.fromString("06022365ddbd7fb126761319633bf73517770714"));
tree.append("a=d", FileMode.REGULAR_FILE, ObjectId.fromString("fa6414df3da87840700e9eeb7fc261dd77ccd5c2"));
ObjectId treeId = insertTree(tree);
FileTreeIterator iterator = new FileTreeIterator(db);
IndexDiff diff = new IndexDiff(db, treeId, iterator);
diff.diff();
assertEquals(0, diff.getChanged().size());
assertEquals(0, diff.getAdded().size());
assertEquals(0, diff.getRemoved().size());
assertEquals(0, diff.getMissing().size());
assertEquals(0, diff.getModified().size());
assertEquals(Collections.EMPTY_SET, diff.getUntrackedFolders());
}
/**
* This test has both files and directories that involve the tricky ordering
* used by Git.
*
* @throws IOException
* @throws GitAPIException
*/
@Test
public void testUnchangedComplex() throws IOException, GitAPIException {
writeTrashFile("a.b", "a.b");
writeTrashFile("a.c", "a.c");
writeTrashFile("a/b.b/b", "a/b.b/b");
writeTrashFile("a/b", "a/b");
writeTrashFile("a/c", "a/c");
writeTrashFile("a=c", "a=c");
writeTrashFile("a=d", "a=d");
try (Git git = new Git(db)) {
git.add().addFilepattern("a.b").addFilepattern("a.c")
.addFilepattern("a/b.b/b").addFilepattern("a/b")
.addFilepattern("a/c").addFilepattern("a=c")
.addFilepattern("a=d").call();
}
// got the hash id'd from the data using echo -n a.b|git hash-object -t blob --stdin
TreeFormatter bb = new TreeFormatter();
bb.append("b", FileMode.REGULAR_FILE, ObjectId.fromString("8d840bd4e2f3a48ff417c8e927d94996849933fd"));
TreeFormatter a = new TreeFormatter();
a.append("b", FileMode.REGULAR_FILE, ObjectId
.fromString("db89c972fc57862eae378f45b74aca228037d415"));
a.append("b.b", FileMode.TREE, insertTree(bb));
a.append("c", FileMode.REGULAR_FILE, ObjectId.fromString("52ad142a008aeb39694bafff8e8f1be75ed7f007"));
TreeFormatter tree = new TreeFormatter();
tree.append("a.b", FileMode.REGULAR_FILE, ObjectId.fromString("f6f28df96c2b40c951164286e08be7c38ec74851"));
tree.append("a.c", FileMode.REGULAR_FILE, ObjectId.fromString("6bc0e647512d2a0bef4f26111e484dc87df7f5ca"));
tree.append("a", FileMode.TREE, insertTree(a));
tree.append("a=c", FileMode.REGULAR_FILE, ObjectId.fromString("06022365ddbd7fb126761319633bf73517770714"));
tree.append("a=d", FileMode.REGULAR_FILE, ObjectId.fromString("fa6414df3da87840700e9eeb7fc261dd77ccd5c2"));
ObjectId treeId = insertTree(tree);
FileTreeIterator iterator = new FileTreeIterator(db);
IndexDiff diff = new IndexDiff(db, treeId, iterator);
diff.diff();
assertEquals(0, diff.getChanged().size());
assertEquals(0, diff.getAdded().size());
assertEquals(0, diff.getRemoved().size());
assertEquals(0, diff.getMissing().size());
assertEquals(0, diff.getModified().size());
assertEquals(Collections.EMPTY_SET, diff.getUntrackedFolders());
}
private ObjectId insertTree(TreeFormatter tree) throws IOException {
try (ObjectInserter oi = db.newObjectInserter()) {
ObjectId id = oi.insert(tree);
oi.flush();
return id;
}
}
/**
* A file is removed from the index but stays in the working directory. It
* is checked if IndexDiff detects this file as removed and untracked.
*
* @throws Exception
*/
@Test
public void testRemovedUntracked() throws Exception{
String path = "file";
try (Git git = new Git(db)) {
writeTrashFile(path, "content");
git.add().addFilepattern(path).call();
git.commit().setMessage("commit").call();
}
removeFromIndex(path);
FileTreeIterator iterator = new FileTreeIterator(db);
IndexDiff diff = new IndexDiff(db, Constants.HEAD, iterator);
diff.diff();
assertTrue(diff.getRemoved().contains(path));
assertTrue(diff.getUntracked().contains(path));
assertEquals(Collections.EMPTY_SET, diff.getUntrackedFolders());
}
/**
*
* @throws Exception
*/
@Test
public void testUntrackedFolders() throws Exception {
try (Git git = new Git(db)) {
IndexDiff diff = new IndexDiff(db, Constants.HEAD,
new FileTreeIterator(db));
diff.diff();
assertEquals(Collections.EMPTY_SET, diff.getUntrackedFolders());
writeTrashFile("readme", "");
writeTrashFile("src/com/A.java", "");
writeTrashFile("src/com/B.java", "");
writeTrashFile("src/org/A.java", "");
writeTrashFile("src/org/B.java", "");
writeTrashFile("target/com/A.java", "");
writeTrashFile("target/com/B.java", "");
writeTrashFile("target/org/A.java", "");
writeTrashFile("target/org/B.java", "");
git.add().addFilepattern("src").addFilepattern("readme").call();
git.commit().setMessage("initial").call();
diff = new IndexDiff(db, Constants.HEAD,
new FileTreeIterator(db));
diff.diff();
assertEquals(new HashSet<String>(Arrays.asList("target")),
diff.getUntrackedFolders());
writeTrashFile("src/tst/A.java", "");
writeTrashFile("src/tst/B.java", "");
diff = new IndexDiff(db, Constants.HEAD, new FileTreeIterator(db));
diff.diff();
assertEquals(new HashSet<String>(Arrays.asList("target", "src/tst")),
diff.getUntrackedFolders());
git.rm().addFilepattern("src/com/B.java").addFilepattern("src/org")
.call();
git.commit().setMessage("second").call();
writeTrashFile("src/org/C.java", "");
diff = new IndexDiff(db, Constants.HEAD, new FileTreeIterator(db));
diff.diff();
assertEquals(
new HashSet<String>(Arrays.asList("src/org", "src/tst",
"target")),
diff.getUntrackedFolders());
}
}
/**
* Test that ignored folders aren't listed as untracked
*
* @throws Exception
*/
@Test
public void testUntrackedNotIgnoredFolders() throws Exception {
try (Git git = new Git(db)) {
IndexDiff diff = new IndexDiff(db, Constants.HEAD,
new FileTreeIterator(db));
diff.diff();
assertEquals(Collections.EMPTY_SET, diff.getUntrackedFolders());
writeTrashFile("readme", "");
writeTrashFile("sr/com/X.java", "");
writeTrashFile("src/com/A.java", "");
writeTrashFile("src/org/B.java", "");
writeTrashFile("srcs/org/Y.java", "");
writeTrashFile("target/com/A.java", "");
writeTrashFile("target/org/B.java", "");
writeTrashFile(".gitignore", "/target\n/sr");
git.add().addFilepattern("readme").addFilepattern(".gitignore")
.addFilepattern("srcs/").call();
git.commit().setMessage("initial").call();
diff = new IndexDiff(db, Constants.HEAD, new FileTreeIterator(db));
diff.diff();
assertEquals(new HashSet<String>(Arrays.asList("src")),
diff.getUntrackedFolders());
git.add().addFilepattern("src").call();
writeTrashFile("sr/com/X1.java", "");
writeTrashFile("src/tst/A.java", "");
writeTrashFile("src/tst/B.java", "");
writeTrashFile("srcs/com/Y1.java", "");
deleteTrashFile(".gitignore");
diff = new IndexDiff(db, Constants.HEAD, new FileTreeIterator(db));
diff.diff();
assertEquals(
new HashSet<String>(Arrays.asList("srcs/com", "sr", "src/tst",
"target")),
diff.getUntrackedFolders());
}
}
@Test
public void testAssumeUnchanged() throws Exception {
try (Git git = new Git(db)) {
String path = "file";
writeTrashFile(path, "content");
git.add().addFilepattern(path).call();
String path2 = "file2";
writeTrashFile(path2, "content");
String path3 = "file3";
writeTrashFile(path3, "some content");
git.add().addFilepattern(path2).addFilepattern(path3).call();
git.commit().setMessage("commit").call();
assumeUnchanged(path2);
assumeUnchanged(path3);
writeTrashFile(path, "more content");
deleteTrashFile(path3);
FileTreeIterator iterator = new FileTreeIterator(db);
IndexDiff diff = new IndexDiff(db, Constants.HEAD, iterator);
diff.diff();
assertEquals(2, diff.getAssumeUnchanged().size());
assertEquals(1, diff.getModified().size());
assertEquals(0, diff.getChanged().size());
assertTrue(diff.getAssumeUnchanged().contains("file2"));
assertTrue(diff.getAssumeUnchanged().contains("file3"));
assertTrue(diff.getModified().contains("file"));
git.add().addFilepattern(".").call();
iterator = new FileTreeIterator(db);
diff = new IndexDiff(db, Constants.HEAD, iterator);
diff.diff();
assertEquals(2, diff.getAssumeUnchanged().size());
assertEquals(0, diff.getModified().size());
assertEquals(1, diff.getChanged().size());
assertTrue(diff.getAssumeUnchanged().contains("file2"));
assertTrue(diff.getAssumeUnchanged().contains("file3"));
assertTrue(diff.getChanged().contains("file"));
assertEquals(Collections.EMPTY_SET, diff.getUntrackedFolders());
}
}
@Test
public void testStageState() throws IOException {
final int base = DirCacheEntry.STAGE_1;
final int ours = DirCacheEntry.STAGE_2;
final int theirs = DirCacheEntry.STAGE_3;
verifyStageState(StageState.BOTH_DELETED, base);
verifyStageState(StageState.DELETED_BY_THEM, ours, base);
verifyStageState(StageState.DELETED_BY_US, base, theirs);
verifyStageState(StageState.BOTH_MODIFIED, base, ours, theirs);
verifyStageState(StageState.ADDED_BY_US, ours);
verifyStageState(StageState.BOTH_ADDED, ours, theirs);
verifyStageState(StageState.ADDED_BY_THEM, theirs);
assertTrue(StageState.BOTH_DELETED.hasBase());
assertFalse(StageState.BOTH_DELETED.hasOurs());
assertFalse(StageState.BOTH_DELETED.hasTheirs());
assertFalse(StageState.BOTH_ADDED.hasBase());
assertTrue(StageState.BOTH_ADDED.hasOurs());
assertTrue(StageState.BOTH_ADDED.hasTheirs());
}
@Test
public void testStageState_mergeAndReset_bug() throws Exception {
try (Git git = new Git(db)) {
writeTrashFile("a", "content");
git.add().addFilepattern("a").call();
RevCommit initialCommit = git.commit().setMessage("initial commit")
.call();
// create branch and add a new file
final String branchName = Constants.R_HEADS + "branch";
createBranch(initialCommit, branchName);
checkoutBranch(branchName);
writeTrashFile("b", "second file content - branch");
git.add().addFilepattern("b").call();
RevCommit branchCommit = git.commit().setMessage("branch commit")
.call();
// checkout master and add the same new file
checkoutBranch(Constants.R_HEADS + Constants.MASTER);
writeTrashFile("b", "second file content - master");
git.add().addFilepattern("b").call();
git.commit().setMessage("master commit").call();
// try and merge
MergeResult result = git.merge().include(branchCommit).call();
assertEquals(MergeStatus.CONFLICTING, result.getMergeStatus());
FileTreeIterator iterator = new FileTreeIterator(db);
IndexDiff diff = new IndexDiff(db, Constants.HEAD, iterator);
diff.diff();
assertTrue(diff.getChanged().isEmpty());
assertTrue(diff.getAdded().isEmpty());
assertTrue(diff.getRemoved().isEmpty());
assertTrue(diff.getMissing().isEmpty());
assertTrue(diff.getModified().isEmpty());
assertEquals(1, diff.getConflicting().size());
assertTrue(diff.getConflicting().contains("b"));
assertEquals(StageState.BOTH_ADDED, diff.getConflictingStageStates()
.get("b"));
assertTrue(diff.getUntrackedFolders().isEmpty());
// reset file b to its master state without altering the index
writeTrashFile("b", "second file content - master");
// we should have the same result
iterator = new FileTreeIterator(db);
diff = new IndexDiff(db, Constants.HEAD, iterator);
diff.diff();
assertTrue(diff.getChanged().isEmpty());
assertTrue(diff.getAdded().isEmpty());
assertTrue(diff.getRemoved().isEmpty());
assertTrue(diff.getMissing().isEmpty());
assertTrue(diff.getModified().isEmpty());
assertEquals(1, diff.getConflicting().size());
assertTrue(diff.getConflicting().contains("b"));
assertEquals(StageState.BOTH_ADDED, diff.getConflictingStageStates()
.get("b"));
assertTrue(diff.getUntrackedFolders().isEmpty());
}
}
@Test
public void testStageState_simulated_bug() throws Exception {
try (Git git = new Git(db)) {
writeTrashFile("a", "content");
git.add().addFilepattern("a").call();
RevCommit initialCommit = git.commit().setMessage("initial commit")
.call();
// create branch and add a new file
final String branchName = Constants.R_HEADS + "branch";
createBranch(initialCommit, branchName);
checkoutBranch(branchName);
writeTrashFile("b", "second file content - branch");
git.add().addFilepattern("b").call();
git.commit().setMessage("branch commit")
.call();
// checkout master and add the same new file
checkoutBranch(Constants.R_HEADS + Constants.MASTER);
writeTrashFile("b", "second file content - master");
git.add().addFilepattern("b").call();
git.commit().setMessage("master commit").call();
// Simulate a failed merge of branch into master
DirCacheBuilder builder = db.lockDirCache().builder();
DirCacheEntry entry = createEntry("a", FileMode.REGULAR_FILE, 0,
"content");
builder.add(entry);
entry = createEntry("b", FileMode.REGULAR_FILE, 2,
"second file content - master");
builder.add(entry);
entry = createEntry("b", FileMode.REGULAR_FILE, 3,
"second file content - branch");
builder.add(entry);
builder.commit();
FileTreeIterator iterator = new FileTreeIterator(db);
IndexDiff diff = new IndexDiff(db, Constants.HEAD, iterator);
diff.diff();
assertTrue(diff.getChanged().isEmpty());
assertTrue(diff.getAdded().isEmpty());
assertTrue(diff.getRemoved().isEmpty());
assertTrue(diff.getMissing().isEmpty());
assertTrue(diff.getModified().isEmpty());
assertEquals(1, diff.getConflicting().size());
assertTrue(diff.getConflicting().contains("b"));
assertEquals(StageState.BOTH_ADDED, diff.getConflictingStageStates()
.get("b"));
assertTrue(diff.getUntrackedFolders().isEmpty());
}
}
@Test
public void testAutoCRLFInput() throws Exception {
try (Git git = new Git(db)) {
FileBasedConfig config = db.getConfig();
// Make sure core.autocrlf is false before adding
config.setEnum(ConfigConstants.CONFIG_CORE_SECTION, null,
ConfigConstants.CONFIG_KEY_AUTOCRLF, AutoCRLF.FALSE);
config.save();
// File is already in repository with CRLF
writeTrashFile("crlf.txt", "this\r\ncontains\r\ncrlf\r\n");
git.add().addFilepattern("crlf.txt").call();
git.commit().setMessage("Add crlf.txt").call();
// Now set core.autocrlf to input
config.setEnum(ConfigConstants.CONFIG_CORE_SECTION, null,
ConfigConstants.CONFIG_KEY_AUTOCRLF, AutoCRLF.INPUT);
config.save();
FileTreeIterator iterator = new FileTreeIterator(db);
IndexDiff diff = new IndexDiff(db, Constants.HEAD, iterator);
diff.diff();
assertTrue(
"Expected no modified files, but there were: "
+ diff.getModified(), diff.getModified().isEmpty());
}
}
private void verifyStageState(StageState expected, int... stages)
throws IOException {
DirCacheBuilder builder = db.lockDirCache().builder();
for (int stage : stages) {
DirCacheEntry entry = createEntry("a", FileMode.REGULAR_FILE,
stage, "content");
builder.add(entry);
}
builder.commit();
IndexDiff diff = new IndexDiff(db, Constants.HEAD,
new FileTreeIterator(db));
diff.diff();
assertEquals(
"Conflict for entries in stages " + Arrays.toString(stages),
expected, diff.getConflictingStageStates().get("a"));
}
private void removeFromIndex(String path) throws IOException {
final DirCache dirc = db.lockDirCache();
final DirCacheEditor edit = dirc.editor();
edit.add(new DirCacheEditor.DeletePath(path));
if (!edit.commit())
throw new IOException("could not commit");
}
private void assumeUnchanged(String path) throws IOException {
final DirCache dirc = db.lockDirCache();
final DirCacheEntry ent = dirc.getEntry(path);
if (ent != null)
ent.setAssumeValid(true);
dirc.write();
if (!dirc.commit())
throw new IOException("could not commit");
}
}