diff options
Diffstat (limited to 'Documentation/technical/pack-protocol.txt')
| -rw-r--r-- | Documentation/technical/pack-protocol.txt | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/Documentation/technical/pack-protocol.txt b/Documentation/technical/pack-protocol.txt index f1a51edf47..18dea8d15f 100644 --- a/Documentation/technical/pack-protocol.txt +++ b/Documentation/technical/pack-protocol.txt @@ -161,6 +161,7 @@ MUST peel the ref if it's an annotated tag. ---- advertised-refs = (no-refs / list-of-refs) + *shallow flush-pkt no-refs = PKT-LINE(zero-id SP "capabilities^{}" @@ -174,6 +175,8 @@ MUST peel the ref if it's an annotated tag. other-tip = obj-id SP refname LF other-peeled = obj-id SP refname "^{}" LF + shallow = PKT-LINE("shallow" SP obj-id) + capability-list = capability *(SP capability) capability = 1*(LC_ALPHA / DIGIT / "-" / "_") LC_ALPHA = %x61-7A @@ -228,17 +231,16 @@ obtained through ref discovery. The client MUST write all obj-ids which it only has shallow copies of (meaning that it does not have the parents of a commit) as 'shallow' lines so that the server is aware of the limitations of -the client's history. Clients MUST NOT mention an obj-id which -it does not know exists on the server. +the client's history. The client now sends the maximum commit history depth it wants for this transaction, which is the number of commits it wants from the tip of the history, if any, as a 'deepen' line. A depth of 0 is the same as not making a depth request. The client does not want to receive -any commits beyond this depth, nor objects needed only to complete -those commits. Commits whose parents are not received as a result are -defined as shallow and marked as such in the server. This information -is sent back to the client in the next step. +any commits beyond this depth, nor does it want objects needed only to +complete those commits. Commits whose parents are not received as a +result are defined as shallow and marked as such in the server. This +information is sent back to the client in the next step. Once all the 'want's and 'shallow's (and optional 'deepen') are transferred, clients MUST send a flush-pkt, to tell the server side @@ -336,7 +338,8 @@ during a prior round. This helps to ensure that at least one common ancestor is found before we give up entirely. Once the 'done' line is read from the client, the server will either -send a final 'ACK obj-id' or it will send a 'NAK'. The server only sends +send a final 'ACK obj-id' or it will send a 'NAK'. 'obj-id' is the object +name of the last commit determined to be common. The server only sends ACK after 'done' if there is at least one common base and multi_ack or multi_ack_detailed is enabled. The server always sends NAK after 'done' if there is no common base found. @@ -462,7 +465,9 @@ contain all the objects that the server will need to complete the new references. ---- - update-request = command-list [pack-file] + update-request = *shallow command-list [pack-file] + + shallow = PKT-LINE("shallow" SP obj-id) command-list = PKT-LINE(command NUL capability-list LF) *PKT-LINE(command LF) |