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authorGravatar Runxi Yu2026-03-26 09:17:14 +0000
committerGravatar Runxi Yu2026-03-26 09:18:30 +0000
commit3e884f5f3d42cbc4874a04da31dde10314b0cfad (patch)
treef5e1e325fd1a2a0801791c054010213214475d80 /format/commitgraph/constants.go
parentnetwork/receivepack: Rename from receivepack (diff)
signatureNo signature
format: Move commitgraph and packfile here
Diffstat (limited to 'format/commitgraph/constants.go')
-rw-r--r--format/commitgraph/constants.go32
1 files changed, 32 insertions, 0 deletions
diff --git a/format/commitgraph/constants.go b/format/commitgraph/constants.go
new file mode 100644
index 00000000..3a06a290
--- /dev/null
+++ b/format/commitgraph/constants.go
@@ -0,0 +1,32 @@
+package commitgraph
+
+const (
+ FileSignature = 0x43475048 // "CGPH"
+ FileVersion = 1
+)
+
+const (
+ ChunkOIDF = 0x4f494446 // "OIDF"
+ ChunkOIDL = 0x4f49444c // "OIDL"
+ ChunkCDAT = 0x43444154 // "CDAT"
+ ChunkGDA2 = 0x47444132 // "GDA2"
+ ChunkGDO2 = 0x47444f32 // "GDO2"
+ ChunkEDGE = 0x45444745 // "EDGE"
+ ChunkBIDX = 0x42494458 // "BIDX"
+ ChunkBDAT = 0x42444154 // "BDAT"
+ ChunkBASE = 0x42415345 // "BASE"
+)
+
+const (
+ HeaderSize = 8
+ ChunkEntrySize = 12
+ FanoutSize = 256 * 4
+)
+
+const (
+ ParentNone = 0x70000000
+ ParentExtraMask = 0x80000000
+ ParentLastMask = 0x7fffffff
+
+ GenerationOverflow = 0x80000000
+)