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authorLibravatar Junio C Hamano <gitster@pobox.com>2019-07-19 11:30:19 -0700
committerLibravatar Junio C Hamano <gitster@pobox.com>2019-07-19 11:30:19 -0700
commit4308d81d456c8c3ecc2c33af7f4d834de95130b9 (patch)
treefaf4ca256e9390ab147ce2e213179936a2e01a92 /Documentation
parentThe fifth batch (diff)
parentt5319: use 'test-tool path-utils' instead of 'ls -l' (diff)
downloadtgif-4308d81d456c8c3ecc2c33af7f4d834de95130b9.tar.xz
Merge branch 'ds/midx-expire-repack'
"git multi-pack-index" learned expire and repack subcommands. * ds/midx-expire-repack: t5319: use 'test-tool path-utils' instead of 'ls -l' t5319-multi-pack-index.sh: test batch size zero midx: add test that 'expire' respects .keep files multi-pack-index: test expire while adding packs midx: implement midx_repack() multi-pack-index: prepare 'repack' subcommand multi-pack-index: implement 'expire' subcommand midx: refactor permutation logic and pack sorting midx: simplify computation of pack name lengths multi-pack-index: prepare for 'expire' subcommand Docs: rearrange subcommands for multi-pack-index repack: refactor pack deletion for future use
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/git-multi-pack-index.txt32
1 files changed, 27 insertions, 5 deletions
diff --git a/Documentation/git-multi-pack-index.txt b/Documentation/git-multi-pack-index.txt
index f7778a2c85..233b2b7862 100644
--- a/Documentation/git-multi-pack-index.txt
+++ b/Documentation/git-multi-pack-index.txt
@@ -9,7 +9,7 @@ git-multi-pack-index - Write and verify multi-pack-indexes
SYNOPSIS
--------
[verse]
-'git multi-pack-index' [--object-dir=<dir>] <verb>
+'git multi-pack-index' [--object-dir=<dir>] <subcommand>
DESCRIPTION
-----------
@@ -23,13 +23,35 @@ OPTIONS
`<dir>/packs/multi-pack-index` for the current MIDX file, and
`<dir>/packs` for the pack-files to index.
+The following subcommands are available:
+
write::
- When given as the verb, write a new MIDX file to
- `<dir>/packs/multi-pack-index`.
+ Write a new MIDX file.
verify::
- When given as the verb, verify the contents of the MIDX file
- at `<dir>/packs/multi-pack-index`.
+ Verify the contents of the MIDX file.
+
+expire::
+ Delete the pack-files that are tracked by the MIDX file, but
+ have no objects referenced by the MIDX. Rewrite the MIDX file
+ afterward to remove all references to these pack-files.
+
+repack::
+ Create a new pack-file containing objects in small pack-files
+ referenced by the multi-pack-index. If the size given by the
+ `--batch-size=<size>` argument is zero, then create a pack
+ containing all objects referenced by the multi-pack-index. For
+ a non-zero batch size, Select the pack-files by examining packs
+ from oldest-to-newest, computing the "expected size" by counting
+ the number of objects in the pack referenced by the
+ multi-pack-index, then divide by the total number of objects in
+ the pack and multiply by the pack size. We select packs with
+ expected size below the batch size until the set of packs have
+ total expected size at least the batch size. If the total size
+ does not reach the batch size, then do nothing. If a new pack-
+ file is created, rewrite the multi-pack-index to reference the
+ new pack-file. A later run of 'git multi-pack-index expire' will
+ delete the pack-files that were part of this batch.
EXAMPLES