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Diffstat (limited to 'Documentation/technical/multi-pack-index.txt')
| -rw-r--r-- | Documentation/technical/multi-pack-index.txt | 18 |
1 files changed, 7 insertions, 11 deletions
diff --git a/Documentation/technical/multi-pack-index.txt b/Documentation/technical/multi-pack-index.txt index 86f40f2490..f2221d2b44 100644 --- a/Documentation/technical/multi-pack-index.txt +++ b/Documentation/technical/multi-pack-index.txt @@ -17,13 +17,14 @@ is not feasible due to storage space or excessive repack times. The multi-pack-index (MIDX for short) stores a list of objects and their offsets into multiple packfiles. It contains: -- A list of packfile names. -- A sorted list of object IDs. -- A list of metadata for the ith object ID including: - - A value j referring to the jth packfile. - - An offset within the jth packfile for the object. -- If large offsets are required, we use another list of large +* A list of packfile names. +* A sorted list of object IDs. +* A list of metadata for the ith object ID including: +** A value j referring to the jth packfile. +** An offset within the jth packfile for the object. +* If large offsets are required, we use another list of large offsets similar to version 2 pack-indexes. +- An optional list of objects in pseudo-pack order (used with MIDX bitmaps). Thus, we can provide O(log N) lookup time for any number of packfiles. @@ -87,11 +88,6 @@ Future Work helpful to organize packfiles by object type (commit, tree, blob, etc.) and use this metadata to help that maintenance. -- The partial clone feature records special "promisor" packs that - may point to objects that are not stored locally, but available - on request to a server. The multi-pack-index does not currently - track these promisor packs. - Related Links ------------- [0] https://bugs.chromium.org/p/git/issues/detail?id=6 |