The "Partial Clone" feature is a performance optimization for Git that
allows Git to function without having a complete copy of the repository.
-The goal of this work is to allow Git better handle extremely large
+The goal of this work is to allow Git to better handle extremely large
repositories.
During clone and fetch operations, Git downloads the complete contents
- Dynamic object fetching currently uses the existing pack protocol V0
which means that each object is requested via fetch-pack. The server
will send a full set of info/refs when the connection is established.
- If there are large number of refs, this may incur significant overhead.
+ If there are a large number of refs, this may incur significant overhead.
Future Work
- Improve the way to specify the order in which promisor remotes are
tried.
+
-For example this could allow to specify explicitly something like:
+For example this could allow specifying explicitly something like:
"When fetching from this remote, I want to use these promisor remotes
in this order, though, when pushing or fetching to that remote, I want
to use those promisor remotes in that order."
[a] expensive-to-modify list of missing objects: Earlier in the design of
partial clone we discussed the need for a single list of missing objects.
- This would essentially be a sorted linear list of OIDs that the were
+ This would essentially be a sorted linear list of OIDs that were
omitted by the server during a clone or subsequent fetches.
This file would need to be loaded into memory on every object lookup.