1git-commit-graph(1) 2=================== 3 4NAME 5---- 6git-commit-graph - Write and verify Git commit-graph files 7 8 9SYNOPSIS 10-------- 11[verse] 12'git commit-graph read' [--object-dir <dir>] 13'git commit-graph verify' [--object-dir <dir>] 14'git commit-graph write' <options> [--object-dir <dir>] 15 16 17DESCRIPTION 18----------- 19 20Manage the serialized commit-graph file. 21 22 23OPTIONS 24------- 25--object-dir:: 26 Use given directory for the location of packfiles and commit-graph 27 file. This parameter exists to specify the location of an alternate 28 that only has the objects directory, not a full `.git` directory. The 29 commit-graph file is expected to be in the `<dir>/info` directory and 30 the packfiles are expected to be in `<dir>/pack`. 31 32 33COMMANDS 34-------- 35'write':: 36 37Write a commit-graph file based on the commits found in packfiles. 38+ 39With the `--stdin-packs` option, generate the new commit graph by 40walking objects only in the specified pack-indexes. (Cannot be combined 41with `--stdin-commits` or `--reachable`.) 42+ 43With the `--stdin-commits` option, generate the new commit graph by 44walking commits starting at the commits specified in stdin as a list 45of OIDs in hex, one OID per line. (Cannot be combined with 46`--stdin-packs` or `--reachable`.) 47+ 48With the `--reachable` option, generate the new commit graph by walking 49commits starting at all refs. (Cannot be combined with `--stdin-commits` 50or `--stdin-packs`.) 51+ 52With the `--append` option, include all commits that are present in the 53existing commit-graph file. 54+ 55With the `--split` option, write the commit-graph as a chain of multiple 56commit-graph files stored in `<dir>/info/commit-graphs`. The new commits 57not already in the commit-graph are added in a new "tip" file. This file 58is merged with the existing file if the following merge conditions are 59met: 60+ 61* If `--size-multiple=<X>` is not specified, let `X` equal 2. If the new 62tip file would have `N` commits and the previous tip has `M` commits and 63`X` times `N` is greater than `M`, instead merge the two files into a 64single file. 65+ 66* If `--max-commits=<M>` is specified with `M` a positive integer, and the 67new tip file would have more than `M` commits, then instead merge the new 68tip with the previous tip. 69+ 70Finally, if `--expire-time=<datetime>` is not specified, let `datetime` 71be the current time. After writing the split commit-graph, delete all 72unused commit-graph whose modified times are older than `datetime`. 73 74'read':: 75 76Read the commit-graph file and output basic details about it. 77Used for debugging purposes. 78 79'verify':: 80 81Read the commit-graph file and verify its contents against the object 82database. Used to check for corrupted data. 83 84 85EXAMPLES 86-------- 87 88* Write a commit-graph file for the packed commits in your local `.git` 89 directory. 90+ 91------------------------------------------------ 92$ git commit-graph write 93------------------------------------------------ 94 95* Write a commit-graph file, extending the current commit-graph file 96 using commits in `<pack-index>`. 97+ 98------------------------------------------------ 99$ echo <pack-index> | git commit-graph write --stdin-packs 100------------------------------------------------ 101 102* Write a commit-graph file containing all reachable commits. 103+ 104------------------------------------------------ 105$ git show-ref -s | git commit-graph write --stdin-commits 106------------------------------------------------ 107 108* Write a commit-graph file containing all commits in the current 109 commit-graph file along with those reachable from `HEAD`. 110+ 111------------------------------------------------ 112$ git rev-parse HEAD | git commit-graph write --stdin-commits --append 113------------------------------------------------ 114 115* Read basic information from the commit-graph file. 116+ 117------------------------------------------------ 118$ git commit-graph read 119------------------------------------------------ 120 121 122GIT 123--- 124Part of the linkgit:git[1] suite