ReceivePack: Use try-with-resources for PostReceiveHook

Instead of dropping a second exception, use try-with-resources so that
exception thrown by a hook is attached as a suppressed exception.

This removes a need of holding an exception that is thrown while
unpacking an incoming packfile.

Change-Id: I74d8b944931abbf53d9d1ae5db2e889639fba027
Signed-off-by: Masaya Suzuki <masayasuzuki@google.com>
This commit is contained in:
Masaya Suzuki 2019-11-07 19:07:57 -08:00
parent 4fcc43a1de
commit 224746e0f2
1 changed files with 22 additions and 25 deletions

View File

@ -2213,18 +2213,19 @@ private void service() throws IOException {
}
if (hasCommands()) {
Throwable unpackError = null;
if (needPack()) {
try {
receivePackAndCheckConnectivity();
} catch (IOException | RuntimeException
| SubmoduleValidationException | Error err) {
unpackError = err;
try (PostReceiveExecutor e = new PostReceiveExecutor()) {
if (needPack()) {
try {
receivePackAndCheckConnectivity();
} catch (IOException | RuntimeException
| SubmoduleValidationException | Error err) {
unlockPack();
sendStatusReport(err);
throw new UnpackException(err);
}
}
}
try {
if (unpackError == null) {
try {
setAtomic(isCapabilityEnabled(CAPABILITY_ATOMIC));
validateCommands();
@ -2238,24 +2239,12 @@ private void service() throws IOException {
failPendingCommands();
}
executeCommands();
} finally {
unlockPack();
}
} finally {
unlockPack();
}
sendStatusReport(unpackError);
if (unpackError != null) {
// we already know which exception to throw. Ignore
// potential additional exceptions raised in postReceiveHooks
try {
postReceive.onPostReceive(this, filterCommands(Result.OK));
} catch (Throwable e) {
// empty
}
throw new UnpackException(unpackError);
sendStatusReport(null);
}
postReceive.onPostReceive(this, filterCommands(Result.OK));
autoGc();
}
}
@ -2292,4 +2281,12 @@ static ReceiveCommand parseCommand(String line)
}
return new ReceiveCommand(oldId, newId, name);
}
private class PostReceiveExecutor implements AutoCloseable {
@Override
public void close() {
postReceive.onPostReceive(ReceivePack.this,
filterCommands(Result.OK));
}
}
}