diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/api/MergeCommandTest.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/api/MergeCommandTest.java index 141f330bf..d75ec32f0 100644 --- a/org.eclipse.jgit.test/tst/org/eclipse/jgit/api/MergeCommandTest.java +++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/api/MergeCommandTest.java @@ -247,6 +247,57 @@ public class MergeCommandTest extends RepositoryTestCase { assertEquals(RepositoryState.MERGING, db.getRepositoryState()); } + public void testMultipleCreations() throws Exception { + 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()); + } + + public void testMultipleCreationsSameContent() throws Exception { + 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(1)\n3\n"); + git.add().addFilepattern("b").call(); + RevCommit secondCommit = git.commit().setMessage("side").call(); + + checkoutBranch("refs/heads/master"); + + writeTrashFile("b", "1\nb(1)\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.MERGED, result.getMergeStatus()); + assertEquals("1\nb(1)\n3\n", read(new File(db.getWorkTree(), "b"))); + } + public void testSuccessfulContentMerge() throws Exception { Git git = new Git(db); @@ -415,6 +466,34 @@ public class MergeCommandTest extends RepositoryTestCase { read(new File(db.getWorkTree(), "c/c/c"))); } + public void testMultipleDeletions() throws Exception { + 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"); + + assertTrue(new File(db.getWorkTree(), "a").delete()); + git.add().addFilepattern("a").setUpdate(true).call(); + RevCommit secondCommit = git.commit().setMessage("side").call(); + + assertFalse(new File(db.getWorkTree(), "a").exists()); + checkoutBranch("refs/heads/master"); + assertTrue(new File(db.getWorkTree(), "a").exists()); + + assertTrue(new File(db.getWorkTree(), "a").delete()); + git.add().addFilepattern("a").setUpdate(true).call(); + git.commit().setMessage("main").call(); + + // We are merging a deletion into our branch + MergeResult result = git.merge().include(secondCommit.getId()) + .setStrategy(MergeStrategy.RESOLVE).call(); + assertEquals(MergeStatus.MERGED, result.getMergeStatus()); + } + public void testDeletionAndConflict() throws Exception { Git git = new Git(db); diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/diff/RawText.java b/org.eclipse.jgit/src/org/eclipse/jgit/diff/RawText.java index 06b01e9d0..f83df6b53 100644 --- a/org.eclipse.jgit/src/org/eclipse/jgit/diff/RawText.java +++ b/org.eclipse.jgit/src/org/eclipse/jgit/diff/RawText.java @@ -66,6 +66,9 @@ import org.eclipse.jgit.util.RawParseUtils; * they are converting from "line number" to "element index". */ public class RawText extends Sequence { + /** A Rawtext of length 0 */ + public static final RawText EMPTY_TEXT = new RawText(new byte[0]); + /** Number of bytes to check for heuristics in {@link #isBinary(byte[])} */ private static final int FIRST_FEW_BYTES = 8000; diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/merge/ResolveMerger.java b/org.eclipse.jgit/src/org/eclipse/jgit/merge/ResolveMerger.java index a1bda4128..cf716cbf4 100644 --- a/org.eclipse.jgit/src/org/eclipse/jgit/merge/ResolveMerger.java +++ b/org.eclipse.jgit/src/org/eclipse/jgit/merge/ResolveMerger.java @@ -467,10 +467,12 @@ public class ResolveMerger extends ThreeWayMerger { throws FileNotFoundException, IllegalStateException, IOException { MergeFormatter fmt = new MergeFormatter(); + RawText baseText = base == null ? RawText.EMPTY_TEXT : getRawText( + base.getEntryObjectId(), db); + // do the merge - MergeResult result = mergeAlgorithm.merge( - RawTextComparator.DEFAULT, - getRawText(base.getEntryObjectId(), db), + MergeResult result = MergeAlgorithm.merge( + RawTextComparator.DEFAULT, baseText, getRawText(ours.getEntryObjectId(), db), getRawText(theirs.getEntryObjectId(), db));