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The multi-pack-index tracks objects in a collection of pack-files. Only one copy of each object is indexed, using the modified time of the pack-files to determine tie-breakers. It is possible to have a pack-file with no referenced objects because all objects have a duplicate in a newer pack-file. Introduce a new 'expire' subcommand to the multi-pack-index builtin. This subcommand will delete these unused pack-files and rewrite the multi-pack-index to no longer refer to those files. More details about the specifics will follow as the method is implemented. Add a test that verifies the 'expire' subcommand is correctly wired, but will still be valid when the verb is implemented. Specifically, create a set of packs that should all have referenced objects and should not be removed during an 'expire' operation. The packs are created carefully to ensure they have a specific order when sorted by size. This will be important in a later test. Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
72 lines
1.7 KiB
Plaintext
72 lines
1.7 KiB
Plaintext
git-multi-pack-index(1)
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=======================
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NAME
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----
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git-multi-pack-index - Write and verify multi-pack-indexes
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SYNOPSIS
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--------
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[verse]
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'git multi-pack-index' [--object-dir=<dir>] <subcommand>
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DESCRIPTION
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-----------
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Write or verify a multi-pack-index (MIDX) file.
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OPTIONS
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-------
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--object-dir=<dir>::
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Use given directory for the location of Git objects. We check
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`<dir>/packs/multi-pack-index` for the current MIDX file, and
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`<dir>/packs` for the pack-files to index.
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The following subcommands are available:
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write::
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Write a new MIDX file.
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verify::
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Verify the contents of the MIDX file.
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expire::
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Delete the pack-files that are tracked by the MIDX file, but
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have no objects referenced by the MIDX. Rewrite the MIDX file
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afterward to remove all references to these pack-files.
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EXAMPLES
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--------
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* Write a MIDX file for the packfiles in the current .git folder.
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+
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-----------------------------------------------
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$ git multi-pack-index write
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-----------------------------------------------
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* Write a MIDX file for the packfiles in an alternate object store.
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+
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-----------------------------------------------
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$ git multi-pack-index --object-dir <alt> write
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-----------------------------------------------
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* Verify the MIDX file for the packfiles in the current .git folder.
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+
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-----------------------------------------------
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$ git multi-pack-index verify
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-----------------------------------------------
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SEE ALSO
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--------
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See link:technical/multi-pack-index.html[The Multi-Pack-Index Design
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Document] and link:technical/pack-format.html[The Multi-Pack-Index
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Format] for more information on the multi-pack-index feature.
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GIT
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---
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Part of the linkgit:git[1] suite
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