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Merge "Only throw MissingObjectException when necessary"

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Terry Parker 2017-04-12 10:25:09 -04:00 committed by Gerrit Code Review @ Eclipse.org
parent cc0dbbae43 f5368dc97f
commit 56a1cced74
1 changed files with 32 additions and 17 deletions
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49
org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/pack/PackWriterBitmapWalker.java
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@ -117,24 +117,39 @@ BitmapBuilder findObjects(Set<? extends ObjectId> start, BitmapBuilder seen, boo
new AddUnseenToBitmapFilter(seen, bitmapResult));
}
while (walker.next() != null) {
// Iterate through all of the commits. The BitmapRevFilter does
// the work.
//
// filter.include returns true for commits that do not have
// a bitmap in bitmapIndex and are not reachable from a
// bitmap in bitmapIndex encountered earlier in the walk.
// Thus the number of commits returned by next() measures how
// much history was traversed without being able to make use
// of bitmaps.
pm.update(1);
countOfBitmapIndexMisses++;
}
try {
while (walker.next() != null) {
// Iterate through all of the commits. The BitmapRevFilter does
// the work.
//
// filter.include returns true for commits that do not have
// a bitmap in bitmapIndex and are not reachable from a
// bitmap in bitmapIndex encountered earlier in the walk.
// Thus the number of commits returned by next() measures how
// much history was traversed without being able to make use
// of bitmaps.
pm.update(1);
countOfBitmapIndexMisses++;
}
RevObject ro;
while ((ro = walker.nextObject()) != null) {
bitmapResult.addObject(ro, ro.getType());
pm.update(1);
RevObject ro;
while ((ro = walker.nextObject()) != null) {
bitmapResult.addObject(ro, ro.getType());
pm.update(1);
}
} catch (MissingObjectException e) {
if (!ignoreMissingStart) {
throw e;
}
// Even when none of the objects we started the walk from is missing,
// an object reachable from one can be. RevWalk and ObjectWalk don't
// provide a way to ignore the missing object and continue, so bail
// out early with an undersized bitmap.
//
// The resulting packfile is likely to be much too large, but that's
// better than serving an error.
//
// TODO(czhen): Resume the walk instead once RevWalk supports that.
}
}