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odb_read_prefix: reset error in backends loop

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When looking for an object by prefix, we query all the backends so that
we can ensure that there is no ambiguity.  We need to reset the `error`
value between backends; otherwise the first backend may find an object
by prefix, but subsequent backends may not.  If we do not reset the
`error` value then it will remain at `GIT_ENOTFOUND` and `read_prefix_1`
will fail, despite having actually found an object.
This commit is contained in:
Edward Thomson 2017-06-12 12:56:40 +01:00
parent bd6928096d
commit cb3010c54a
1 changed files with 4 additions and 1 deletions
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5
src/odb.c
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@ -1116,8 +1116,11 @@ static int read_prefix_1(git_odb_object **out, git_odb *db,
if (b->read_prefix != NULL) {
git_oid full_oid;
error = b->read_prefix(&full_oid, &raw.data, &raw.len, &raw.type, b, key, len);
if (error == GIT_ENOTFOUND || error == GIT_PASSTHROUGH)
if (error == GIT_ENOTFOUND || error == GIT_PASSTHROUGH) {
error = 0;
continue;
}
if (error)
goto out;