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Merge branch 'cc/delta-islands'

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Lift code from GitHub to restrict delta computation so that an
object that exists in one fork is not made into a delta against
another object that does not appear in the same forked repository.

* cc/delta-islands:
  pack-objects: move 'layer' into 'struct packing_data'
  pack-objects: move tree_depth into 'struct packing_data'
  t5320: tests for delta islands
  repack: add delta-islands support
  pack-objects: add delta-islands support
  pack-objects: refactor code into compute_layer_order()
  Add delta-islands.{c,h}
This commit is contained in:
Junio C Hamano
2018-09-17 13:53:55 -07:00
parent fba9654364 fe0ac2fb7f
commit f3504ea3dd
11 changed files with 936 additions and 47 deletions
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12
pack-objects.c
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@ -164,6 +164,12 @@ struct object_entry *packlist_alloc(struct packing_data *pdata,
REALLOC_ARRAY(pdata->in_pack, pdata->nr_alloc);
if (pdata->delta_size)
REALLOC_ARRAY(pdata->delta_size, pdata->nr_alloc);
if (pdata->tree_depth)
REALLOC_ARRAY(pdata->tree_depth, pdata->nr_alloc);
if (pdata->layer)
REALLOC_ARRAY(pdata->layer, pdata->nr_alloc);
}
new_entry = pdata->objects + pdata->nr_objects++;
@ -179,6 +185,12 @@ struct object_entry *packlist_alloc(struct packing_data *pdata,
if (pdata->in_pack)
pdata->in_pack[pdata->nr_objects - 1] = NULL;
if (pdata->tree_depth)
pdata->tree_depth[pdata->nr_objects - 1] = 0;
if (pdata->layer)
pdata->layer[pdata->nr_objects - 1] = 0;
return new_entry;
}