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authorJunio C Hamano <gitster@pobox.com>2020-08-19 16:14:52 -0700
committerJunio C Hamano <gitster@pobox.com>2020-08-19 16:14:53 -0700
commit6f8a2138b96c8f33ebbe2055a9444ada40a8e1c8 (patch)
tree8ed6c5420da5f4be6a398ae8da7d30767c2258be /Documentation/technical/commit-graph-format.txt
parentMerge branch 'ma/sha-256-docs' (diff)
parentmulti-pack-index: use hash version byte (diff)
downloadgit-6f8a2138b96c8f33ebbe2055a9444ada40a8e1c8.tar.gz
git-6f8a2138b96c8f33ebbe2055a9444ada40a8e1c8.zip
Merge branch 'ds/sha256-leftover-bits'
midx and commit-graph files now use the byte defined in their file format specification for identifying the hash function used for object names. * ds/sha256-leftover-bits: multi-pack-index: use hash version byte commit-graph: use the "hash version" byte t/README: document GIT_TEST_DEFAULT_HASH
Diffstat (limited to 'Documentation/technical/commit-graph-format.txt')
-rw-r--r--Documentation/technical/commit-graph-format.txt9
1 files changed, 7 insertions, 2 deletions
diff --git a/Documentation/technical/commit-graph-format.txt b/Documentation/technical/commit-graph-format.txt
index 440541045d..6ddbceba15 100644
--- a/Documentation/technical/commit-graph-format.txt
+++ b/Documentation/technical/commit-graph-format.txt
@@ -42,8 +42,13 @@ HEADER:
1-byte version number:
Currently, the only valid version is 1.
- 1-byte Hash Version (1 = SHA-1)
- We infer the hash length (H) from this value.
+ 1-byte Hash Version
+ We infer the hash length (H) from this value:
+ 1 => SHA-1
+ 2 => SHA-256
+ If the hash type does not match the repository's hash algorithm, the
+ commit-graph file should be ignored with a warning presented to the
+ user.
1-byte number (C) of "chunks"