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| author | Derrick Stolee <dstolee@microsoft.com> | 2021-01-23 19:58:15 (GMT) |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2021-01-24 01:14:07 (GMT) |
| commit | 1fd9ae517c45294a01466aad0d38f99c7893d814 (patch) | |
| tree | b19cb6e494b98f5e4673c74cceaeaee9d421c4a4 /repository.c | |
| parent | cae70acf2431f0c31e5c097b96fa5bd752526e6d (diff) | |
| download | git-1fd9ae517c45294a01466aad0d38f99c7893d814.zip git-1fd9ae517c45294a01466aad0d38f99c7893d814.tar.gz git-1fd9ae517c45294a01466aad0d38f99c7893d814.tar.bz2 | |
repository: add repo reference to index_state
It will be helpful to add behavior to index operations that might
trigger an object lookup. Since each index belongs to a specific
repository, add a 'repo' pointer to struct index_state that allows
access to this repository.
Add a BUG() statement if the repo already has an index, and the index
already has a repo, but somehow the index points to a different repo.
This will prevent future changes from needing to pass an additional
'struct repository *repo' parameter and instead rely only on the 'struct
index_state *istate' parameter.
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'repository.c')
| -rw-r--r-- | repository.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/repository.c b/repository.c index a4174dd..c98298a 100644 --- a/repository.c +++ b/repository.c @@ -264,6 +264,12 @@ int repo_read_index(struct repository *repo) if (!repo->index) repo->index = xcalloc(1, sizeof(*repo->index)); + /* Complete the double-reference */ + if (!repo->index->repo) + repo->index->repo = repo; + else if (repo->index->repo != repo) + BUG("repo's index should point back at itself"); + return read_index_from(repo->index, repo->index_file, repo->gitdir); } |