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GIT-COMMIT-GRAPH(1) Git Manual GIT-COMMIT-GRAPH(1) NAME git-commit-graph - Write and verify Git commit-graph files SYNOPSIS git commit-graph verify [--object-dir <dir>] [--shallow] [--[no-]progress] git commit-graph write [--object-dir <dir>] [--append] [--split[=<strategy>]] [--reachable | --stdin-packs | --stdin-commits] [--changed-paths] [--[no-]max-new-filters <n>] [--[no-]progress] <split-options> DESCRIPTION Manage the serialized commit-graph file. OPTIONS --object-dir 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 in the <dir>/info directory and the packfiles are expected to be in <dir>/pack. If the directory could not be made into an absolute path, or does not match any known object directory, git commit-graph ... will exit with non-zero status. --[no-]progress Turn progress on/off explicitly. If neither is specified, progress is shown if standard error is connected to a terminal. COMMANDS write Write a commit-graph file based on the commits found in packfiles. If the config option core.commitGraph is disabled, then this command will output a warning, then return success without writing a commit-graph file. With the --stdin-packs option, generate the new commit graph by walking objects only in the specified pack-indexes. (Cannot be combined with --stdin-commits or --reachable.) With the --stdin-commits option, generate the new commit graph by walking commits starting at the commits specified in stdin as a list of OIDs in hex, one OID per line. OIDs that resolve to non-commits (either directly, or by peeling tags) are silently ignored. OIDs that are malformed, or do not exist generate an error. (Cannot be combined with --stdin-packs or --reachable.) With the --reachable option, generate the new commit graph by walking commits starting at all refs. (Cannot be combined with --stdin-commits or --stdin-packs.) With the --append option, include all commits that are present in the existing commit-graph file. With the --changed-paths option, compute and write information about the paths changed between a commit and its first parent. This operation can take a while on large repositories. It provides significant performance gains for getting history of a directory or a file with git log -- <path>. If this option is given, future commit-graph writes will automatically assume that this option was intended. Use --no-changed-paths to stop storing this data. With the --max-new-filters=<n> option, generate at most n new Bloom filters (if --changed-paths is specified). If n is -1, no limit is enforced. Only commits present in the new layer count against this limit. To retroactively compute Bloom filters over earlier layers, it is advised to use --split=replace. Overrides the commitGraph.maxNewFilters configuration. With the --split[=<strategy>] option, write the commit-graph as a chain of multiple commit-graph files stored in <dir>/info/commit-graphs. Commit-graph layers are merged based on the strategy and other splitting options. The new commits not already in the commit-graph are added in a new "tip" file. This file is merged with the existing file if the following merge conditions are met: • If --split=no-merge is specified, a merge is never performed, and the remaining options are ignored. --split=replace overwrites the existing chain with a new one. A bare --split defers to the remaining options. (Note that merging a chain of commit graphs replaces the existing chain with a length-1 chain where the first and only incremental holds the entire graph). • If --size-multiple=<X> is not specified, let X equal 2. If the new tip file would have N commits and the previous tip has M commits and X times N is greater than M, instead merge the two files into a single file. • If --max-commits=<M> is specified with M a positive integer, and the new tip file would have more than M commits, then instead merge the new tip with the previous tip. Finally, if --expire-time=<datetime> is not specified, let datetime be the current time. After writing the split commit-graph, delete all unused commit-graph whose modified times are older than datetime. verify Read the commit-graph file and verify its contents against the object database. Used to check for corrupted data. With the --shallow option, only check the tip commit-graph file in a chain of split commit-graphs. EXAMPLES • Write a commit-graph file for the packed commits in your local .git directory. $ git commit-graph write • Write a commit-graph file, extending the current commit-graph file using commits in <pack-index>. $ echo <pack-index> | git commit-graph write --stdin-packs • Write a commit-graph file containing all reachable commits. $ git show-ref -s | git commit-graph write --stdin-commits • Write a commit-graph file containing all commits in the current commit-graph file along with those reachable from HEAD. $ git rev-parse HEAD | git commit-graph write --stdin-commits --append CONFIGURATION Everything below this line in this section is selectively included from the git-config(1) documentation. The content is the same as what's found there: commitGraph.generationVersion Specifies the type of generation number version to use when writing or reading the commit-graph file. If version 1 is specified, then the corrected commit dates will not be written or read. Defaults to 2. commitGraph.maxNewFilters Specifies the default value for the --max-new-filters option of git commit-graph write (c.f., git-commit-graph(1)). commitGraph.readChangedPaths Deprecated. Equivalent to commitGraph.changedPathsVersion=-1 if true, and commitGraph.changedPathsVersion=0 if false. (If commitGraph.changedPathVersion is also set, commitGraph.changedPathsVersion takes precedence.) commitGraph.changedPathsVersion Specifies the version of the changed-path Bloom filters that Git will read and write. May be -1, 0, 1, or 2. Note that values greater than 1 may be incompatible with older versions of Git which do not yet understand those versions. Use caution when operating in a mixed-version environment. Defaults to -1. If -1, Git will use the version of the changed-path Bloom filters in the repository, defaulting to 1 if there are none. If 0, Git will not read any Bloom filters, and will write version 1 Bloom filters when instructed to write. If 1, Git will only read version 1 Bloom filters, and will write version 1 Bloom filters. If 2, Git will only read version 2 Bloom filters, and will write version 2 Bloom filters. See git-commit-graph(1) for more information. FILE FORMAT see gitformat-commit-graph(5). GIT Part of the git(1) suite Git 2.49.0 2025-03-14 GIT-COMMIT-GRAPH(1)
NAME | SYNOPSIS | DESCRIPTION | OPTIONS | COMMANDS | EXAMPLES | CONFIGURATION | FILE FORMAT | GIT
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