diff options
Diffstat (limited to 'Documentation/technical/commit-graph-format.txt')
| -rw-r--r-- | Documentation/technical/commit-graph-format.txt | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/Documentation/technical/commit-graph-format.txt b/Documentation/technical/commit-graph-format.txt index 1beef17182..1f86031333 100644 --- a/Documentation/technical/commit-graph-format.txt +++ b/Documentation/technical/commit-graph-format.txt @@ -32,7 +32,7 @@ the body into "chunks" and provide a binary lookup table at the beginning of the body. The header includes certain values, such as number of chunks and hash type. -All 4-byte numbers are in network order. +All multi-byte numbers are in network byte order. HEADER: @@ -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" @@ -77,7 +82,7 @@ CHUNK DATA: Commit Data (ID: {'C', 'D', 'A', 'T' }) (N * (H + 16) bytes) * The first H bytes are for the OID of the root tree. * The next 8 bytes are for the positions of the first two parents - of the ith commit. Stores value 0x7000000 if no parent in that + of the ith commit. Stores value 0x70000000 if no parent in that position. If there are more than two parents, the second value has its most-significant bit on and the other bits store an array position into the Extra Edge List chunk. |