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authorJunio C Hamano <gitster@pobox.com>2020-05-01 13:39:52 -0700
committerJunio C Hamano <gitster@pobox.com>2020-05-01 13:39:52 -0700
commit6a1c17d05b0e67fa5f9661f492f407b984496b27 (patch)
tree2abe4b8ae7cb8eb78e93ca07cd1e9426a876297d /Documentation/git-commit-graph.txt
parent2b4ff3d3dc64d4abcded7caa9bcdf063aea5ec3f (diff)
parentdbd5e0a1861c5bb1446e5518173aa1760c6617b0 (diff)
downloadgit-6a1c17d05b0e67fa5f9661f492f407b984496b27.tar.xz
Merge branch 'tb/commit-graph-split-strategy'
"git commit-graph write" learned different ways to write out split files. * tb/commit-graph-split-strategy: Revert "commit-graph.c: introduce '--[no-]check-oids'" commit-graph.c: introduce '--[no-]check-oids' commit-graph.h: replace 'commit_hex' with 'commits' oidset: introduce 'oidset_size' builtin/commit-graph.c: introduce split strategy 'replace' builtin/commit-graph.c: introduce split strategy 'no-merge' builtin/commit-graph.c: support for '--split[=<strategy>]' t/helper/test-read-graph.c: support commit-graph chains
Diffstat (limited to 'Documentation/git-commit-graph.txt')
-rw-r--r--Documentation/git-commit-graph.txt17
1 files changed, 12 insertions, 5 deletions
diff --git a/Documentation/git-commit-graph.txt b/Documentation/git-commit-graph.txt
index 28d1fee505..46f7f7c573 100644
--- a/Documentation/git-commit-graph.txt
+++ b/Documentation/git-commit-graph.txt
@@ -57,11 +57,18 @@ 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:
+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