Throw JGit exception when ResetCommand got wrong ref

If the ResetCommand should reset to a invalid ref (e.g. HEAD in a repo
whithout a single commit) it was throwing an NPE. This is fixed now by
throwing a JGitInternalExcpeption. It would be nicer if we could throw
a InvalidRefException, but this would modify our API.

Bug: 339610
Change-Id: Iffcb4f2cca9f702176471d93c3a71e5cb3e700b1
Signed-off-by: Christian Halstrick <christian.halstrick@sap.com>
Signed-off-by: Chris Aniszczyk <caniszczyk@gmail.com>
This commit is contained in:
Christian Halstrick 2011-08-16 15:15:01 +02:00 committed by Chris Aniszczyk
parent 9952223e06
commit 930875a81a
2 changed files with 23 additions and 0 deletions

View File

@ -46,6 +46,7 @@
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import java.io.File;
import java.io.IOException;
@ -156,6 +157,22 @@ public void testHardReset() throws JGitInternalException,
assertReflog(prevHead, head);
}
@Test
public void testResetToNonexistingHEAD() throws JGitInternalException,
AmbiguousObjectException, IOException {
// create a file in the working tree of a fresh repo
git = new Git(db);
writeTrashFile("f", "content");
try {
git.reset().setRef(Constants.HEAD).call();
fail("Expected JGitInternalException didn't occur");
} catch (JGitInternalException e) {
// got the expected exception
}
}
@Test
public void testSoftReset() throws JGitInternalException,
AmbiguousObjectException, IOException, NoFilepatternException,

View File

@ -151,6 +151,12 @@ public Ref call() throws IOException {
final ObjectId commitId;
try {
commitId = repo.resolve(ref);
if (commitId == null) {
// @TODO throw an InvalidRefNameException. We can't do that
// now because this would break the API
throw new JGitInternalException("Invalid ref " + ref
+ " specified");
}
} catch (IOException e) {
throw new JGitInternalException(
MessageFormat.format(JGitText.get().cannotRead, ref),