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| author |  Taylor Blau <me@ttaylorr.com> | 2021-09-14 18:06:06 -0400 |
|---|---|---|
| committer |  Junio C Hamano <gitster@pobox.com> | 2021-09-14 16:34:18 -0700 |
| commit | caca3c9f07f90645e32c284c88c379109abf59be (patch) | |
| tree | 257c33a005692de96e61d8e6a2df0d09554b3eb7 /Documentation/config | |
| parent | pack-bitmap.c: propagate namehash values from existing bitmaps (diff) | |
| download | tgif-caca3c9f07f90645e32c284c88c379109abf59be.tar.xz | |
midx.c: respect 'pack.writeBitmapHashcache' when writing bitmaps
In the previous commit, the bitmap writing code learned to propagate
values from an existing hash-cache extension into the bitmap that it is
writing.
Now that that functionality exists, let's expose it by teaching the 'git
multi-pack-index' builtin to respect the `pack.writeBitmapHashCache`
option so that the hash-cache may be written at all.
Two minor points worth noting here:
- The 'git multi-pack-index write' sub-command didn't previously read
any configuration (instead this is handled in the base command). A
separate handler is added here to respect this write-specific
config option.
- I briefly considered adding a 'bitmap_flags' field to the static
options struct, but decided against it since it would require
plumbing through a new parameter to the write_midx_file() function.
Instead, a new MIDX-specific flag is added, which is translated to
the corresponding bitmap one.
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'Documentation/config')
| -rw-r--r-- | Documentation/config/pack.txt | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/config/pack.txt b/Documentation/config/pack.txt index 763f7af7c4..ad7f73a1ea 100644 --- a/Documentation/config/pack.txt +++ b/Documentation/config/pack.txt @@ -159,6 +159,10 @@ pack.writeBitmapHashCache:: between an older, bitmapped pack and objects that have been pushed since the last gc). The downside is that it consumes 4 bytes per object of disk space. Defaults to true. ++ +When writing a multi-pack reachability bitmap, no new namehashes are +computed; instead, any namehashes stored in an existing bitmap are +permuted into their appropriate location when writing a new bitmap. pack.writeReverseIndex:: When true, git will write a corresponding .rev file (see: |