tree 8696971e9135dc5b159cb6181387385b6121007c
parent 83e0392ceadb7e1d9db09a7f013e28759a666e89
author Patrick Steinhardt <ps@pks.im> 1495194574 +0200
committer Patrick Steinhardt <ps@pks.im> 1496734724 +0200

index: fix shared prefix computation when writing index entry

When using compressed index entries, each entry's path is preceded by a
varint encoding how long the shared prefix with the previous index entry
actually is. We currently encode a length of `(path_len - same_len)`,
which is doubly wrong. First, `path_len` is already set to `path_len -
same_len` previously. Second, we want to encode the shared prefix rather
than the un-shared suffix length.

Fix this by using `same_len` as the varint value instead.