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3d5df01b5e
Teach git-commit-graph to read commits from stdin when the --stdin-commits flag is specified. Commits reachable from these commits are added to the graph. This is a much faster way to construct the graph than inspecting all packed objects, but is restricted to known tips. For the Linux repository, 700,000+ commits were added to the graph file starting from 'master' in 7-9 seconds, depending on the number of packfiles in the repo (1, 24, or 120). Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
85 lines
2.1 KiB
Plaintext
85 lines
2.1 KiB
Plaintext
git-commit-graph(1)
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===================
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NAME
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----
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git-commit-graph - Write and verify Git commit graph files
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SYNOPSIS
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--------
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[verse]
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'git commit-graph read' [--object-dir <dir>]
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'git commit-graph write' <options> [--object-dir <dir>]
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DESCRIPTION
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-----------
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Manage the serialized commit graph file.
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OPTIONS
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-------
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--object-dir::
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Use given directory for the location of packfiles and commit graph
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file. This parameter exists to specify the location of an alternate
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that only has the objects directory, not a full .git directory. The
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commit graph file is expected to be at <dir>/info/commit-graph and
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the packfiles are expected to be in <dir>/pack.
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COMMANDS
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--------
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'write'::
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Write a commit graph file based on the commits found in packfiles.
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+
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With the `--stdin-packs` option, generate the new commit graph by
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walking objects only in the specified pack-indexes. (Cannot be combined
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with --stdin-commits.)
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+
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With the `--stdin-commits` option, generate the new commit graph by
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walking commits starting at the commits specified in stdin as a list
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of OIDs in hex, one OID per line. (Cannot be combined with
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--stdin-packs.)
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'read'::
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Read a graph file given by the commit-graph file and output basic
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details about the graph file. Used for debugging purposes.
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EXAMPLES
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--------
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* Write a commit graph file for the packed commits in your local .git folder.
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+
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------------------------------------------------
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$ git commit-graph write
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------------------------------------------------
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* Write a graph file, extending the current graph file using commits
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* in <pack-index>.
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+
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------------------------------------------------
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$ echo <pack-index> | git commit-graph write --stdin-packs
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------------------------------------------------
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* Write a graph file containing all reachable commits.
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+
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------------------------------------------------
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$ git show-ref -s | git commit-graph write --stdin-commits
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------------------------------------------------
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* Read basic information from the commit-graph file.
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+
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------------------------------------------------
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$ git commit-graph read
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------------------------------------------------
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GIT
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---
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Part of the linkgit:git[1] suite
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