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-rw-r--r--Documentation/git-commit-graph.txt31
1 files changed, 28 insertions, 3 deletions
diff --git a/Documentation/git-commit-graph.txt b/Documentation/git-commit-graph.txt
index 624470e198..8c708a7a16 100644
--- a/Documentation/git-commit-graph.txt
+++ b/Documentation/git-commit-graph.txt
@@ -10,8 +10,8 @@ SYNOPSIS
--------
[verse]
'git commit-graph read' [--object-dir <dir>]
-'git commit-graph verify' [--object-dir <dir>]
-'git commit-graph write' <options> [--object-dir <dir>]
+'git commit-graph verify' [--object-dir <dir>] [--shallow] [--[no-]progress]
+'git commit-graph write' <options> [--object-dir <dir>] [--[no-]progress]
DESCRIPTION
@@ -26,9 +26,12 @@ OPTIONS
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 in the `<dir>/info` directory and
the packfiles are expected to be in `<dir>/pack`.
+--[no-]progress::
+ Turn progress on/off explicitly. If neither is specified, progress is
+ shown if standard error is connected to a terminal.
COMMANDS
--------
@@ -51,6 +54,25 @@ or `--stdin-packs`.)
+
With the `--append` option, include all commits that are present in the
existing commit-graph file.
++
+With the `--split` option, write the commit-graph as a chain of multiple
+commit-graph files stored in `<dir>/info/commit-graphs`. 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 `--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`.
'read'::
@@ -61,6 +83,9 @@ Used for debugging purposes.
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