NAME
----
-git-commit-graph - Write and verify Git commit graph files
+git-commit-graph - Write and verify Git commit-graph files
SYNOPSIS
DESCRIPTION
-----------
-Manage the serialized commit graph file.
+Manage the serialized commit-graph file.
OPTIONS
-------
--object-dir::
- Use given directory for the location of packfiles and commit graph
+ Use given directory for the location of packfiles and commit-graph
file. This parameter exists to specify the location of an alternate
that only has the objects directory, not a full `.git` directory. The
- commit graph file is expected to be at `<dir>/info/commit-graph` and
+ commit-graph file is expected to be at `<dir>/info/commit-graph` and
the packfiles are expected to be in `<dir>/pack`.
--------
'write'::
-Write a commit graph file based on the commits found in packfiles.
+Write a commit-graph file based on the commits found in packfiles.
+
With the `--stdin-packs` option, generate the new commit graph by
walking objects only in the specified pack-indexes. (Cannot be combined
EXAMPLES
--------
-* Write a commit graph file for the packed commits in your local `.git`
+* Write a commit-graph file for the packed commits in your local `.git`
directory.
+
------------------------------------------------
1. Decompressing and parsing commits.
2. Walking the entire graph to satisfy topological order constraints.
-The commit graph file is a supplemental data structure that accelerates
+The commit-graph file is a supplemental data structure that accelerates
commit graph walks. If a user downgrades or disables the 'core.commitGraph'
config setting, then the existing ODB is sufficient. The file is stored
as "commit-graph" either in the .git/objects/info directory or in the info
directory of an alternate.
-The commit graph file stores the commit graph structure along with some
+The commit-graph file stores the commit graph structure along with some
extra metadata to speed up graph walks. By listing commit OIDs in lexi-
cographic order, we can identify an integer position for each commit and
refer to the parents of a commit using those integer positions. We use
Design Details
--------------
-- The commit graph file is stored in a file named 'commit-graph' in the
+- The commit-graph file is stored in a file named 'commit-graph' in the
.git/objects/info directory. This could be stored in the info directory
of an alternate.
- 'log --topo-order'
- 'tag --merged'
-- A server could provide a commit graph file as part of the network protocol
+- A server could provide a commit-graph file as part of the network protocol
to avoid extra calculations by clients. This feature is only of benefit if
the user is willing to trust the file, because verifying the file is correct
is as hard as computing it from scratch.