From: Nguyễn Thái Ngọc Duy Date: Fri, 13 Jun 2014 12:19:49 +0000 (+0700) Subject: read-cache: force split index mode with GIT_TEST_SPLIT_INDEX X-Git-Tag: v2.1.0-rc0~45^2~2 X-Git-Url: https://git.lorimer.id.au/gitweb.git/diff_plain/d6e3c181bc94e3f540c403eef0515c5eed74fc16 read-cache: force split index mode with GIT_TEST_SPLIT_INDEX This could be used to run the whole test suite with split indexes. Index splitting is carried out at random. "git read-tree" also resets the index and forces splitting at the next update. I had a lot of headaches with the test suite, which proves it exercises split index pretty good. Signed-off-by: Nguyễn Thái Ngọc Duy Signed-off-by: Junio C Hamano --- diff --git a/read-cache.c b/read-cache.c index b1027f7ee0..12335a362b 100644 --- a/read-cache.c +++ b/read-cache.c @@ -1885,8 +1885,11 @@ static int do_write_index(struct index_state *istate, int newfd, } } - if (!istate->version) + if (!istate->version) { istate->version = get_index_format_default(); + if (getenv("GIT_TEST_SPLIT_INDEX")) + init_split_index(istate); + } /* demote version 3 to version 2 when the latter suffices */ if (istate->version == 3 || istate->version == 2) @@ -2077,6 +2080,11 @@ int write_locked_index(struct index_state *istate, struct lock_file *lock, return do_write_locked_index(istate, lock, flags); } + if (getenv("GIT_TEST_SPLIT_INDEX")) { + int v = si->base_sha1[0]; + if ((v & 15) < 6) + istate->cache_changed |= SPLIT_INDEX_ORDERED; + } if (istate->cache_changed & SPLIT_INDEX_ORDERED) { int ret = write_shared_index(istate, lock, flags); if (ret)