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Diffstat (limited to 'Documentation/git-repack.txt')
| -rw-r--r-- | Documentation/git-repack.txt | 33 |
1 files changed, 25 insertions, 8 deletions
diff --git a/Documentation/git-repack.txt b/Documentation/git-repack.txt index 4786a780b5..26afe6ed54 100644 --- a/Documentation/git-repack.txt +++ b/Documentation/git-repack.txt @@ -33,7 +33,7 @@ OPTIONS pack everything referenced into a single pack. Especially useful when packing a repository that is used for private development. Use - with '-d'. This will clean up the objects that `git prune` + with `-d`. This will clean up the objects that `git prune` leaves behind, but `git fsck --full --dangling` shows as dangling. + @@ -42,7 +42,7 @@ whole new pack in order to get any contained object, no matter how many other objects in that pack they already have locally. -A:: - Same as `-a`, unless '-d' is used. Then any unreachable + Same as `-a`, unless `-d` is used. Then any unreachable objects in a previous pack become loose, unpacked objects, instead of being left in the old pack. Unreachable objects are never intentionally added to a pack, even when repacking. @@ -100,13 +100,16 @@ other objects in that pack they already have locally. out of memory with a large window, but still be able to take advantage of the large window for the smaller objects. The size can be suffixed with "k", "m", or "g". - `--window-memory=0` makes memory usage unlimited, which is the - default. + `--window-memory=0` makes memory usage unlimited. The default + is taken from the `pack.windowMemory` configuration variable. + Note that the actual memory usage will be the limit multiplied + by the number of threads used by linkgit:git-pack-objects[1]. --max-pack-size=<n>:: Maximum size of each output pack file. The size can be suffixed with "k", "m", or "g". The minimum size allowed is limited to 1 MiB. - If specified, multiple packfiles may be created. + If specified, multiple packfiles may be created, which also + prevents the creation of a bitmap index. The default is unlimited, unless the config variable `pack.packSizeLimit` is set. @@ -115,7 +118,8 @@ other objects in that pack they already have locally. Write a reachability bitmap index as part of the repack. This only makes sense when used with `-a` or `-A`, as the bitmaps must be able to refer to all reachable objects. This option - overrides the setting of `pack.writebitmaps`. + overrides the setting of `repack.writeBitmaps`. This option + has no effect if multiple packfiles are created. --pack-kept-objects:: Include objects in `.keep` files when repacking. Note that we @@ -123,9 +127,22 @@ other objects in that pack they already have locally. This means that we may duplicate objects, but this makes the option safe to use when there are concurrent pushes or fetches. This option is generally only useful if you are writing bitmaps - with `-b` or `pack.writebitmaps`, as it ensures that the + with `-b` or `repack.writeBitmaps`, as it ensures that the bitmapped packfile has the necessary objects. +--unpack-unreachable=<when>:: + When loosening unreachable objects, do not bother loosening any + objects older than `<when>`. This can be used to optimize out + the write of any objects that would be immediately pruned by + a follow-up `git prune`. + +-k:: +--keep-unreachable:: + When used with `-ad`, any unreachable objects from existing + packs will be appended to the end of the packfile instead of + being removed. In addition, any unreachable loose objects will + be packed (and their loose counterparts removed). + Configuration ------------- @@ -133,7 +150,7 @@ By default, the command passes `--delta-base-offset` option to 'git pack-objects'; this typically results in slightly smaller packs, but the generated packs are incompatible with versions of Git older than version 1.4.4. If you need to share your repository with such ancient Git -versions, either directly or via the dumb http or rsync protocol, then you +versions, either directly or via the dumb http protocol, then you need to set the configuration variable `repack.UseDeltaBaseOffset` to "false" and repack. Access from old Git versions over the native protocol is unaffected by this option as the conversion is performed on the fly |