diff options
Diffstat (limited to 'Documentation/technical/partial-clone.txt')
| -rw-r--r-- | Documentation/technical/partial-clone.txt | 33 |
1 files changed, 11 insertions, 22 deletions
diff --git a/Documentation/technical/partial-clone.txt b/Documentation/technical/partial-clone.txt index 210373e258..a0dd7c66f2 100644 --- a/Documentation/technical/partial-clone.txt +++ b/Documentation/technical/partial-clone.txt @@ -32,7 +32,7 @@ if/when needed. A remote that can later provide the missing objects is called a promisor remote, as it promises to send the objects when -requested. Initialy Git supported only one promisor remote, the origin +requested. Initially Git supported only one promisor remote, the origin remote from which the user cloned and that was configured in the "extensions.partialClone" config option. Later support for more than one promisor remote has been implemented. @@ -171,20 +171,13 @@ additional flag. Fetching Missing Objects ------------------------ -- Fetching of objects is done using the existing transport mechanism using - transport_fetch_refs(), setting a new transport option - TRANS_OPT_NO_DEPENDENTS to indicate that only the objects themselves are - desired, not any object that they refer to. -+ -Because some transports invoke fetch_pack() in the same process, fetch_pack() -has been updated to not use any object flags when the corresponding argument -(no_dependents) is set. +- Fetching of objects is done by invoking a "git fetch" subprocess. - The local repository sends a request with the hashes of all requested - objects as "want" lines, and does not perform any packfile negotiation. + objects, and does not perform any packfile negotiation. It then receives a packfile. -- Because we are reusing the existing fetch-pack mechanism, fetching +- Because we are reusing the existing fetch mechanism, fetching currently fetches all objects referred to by the requested objects, even though they are not necessary. @@ -249,8 +242,7 @@ remote in a specific order. repository and can satisfy all such requests. - Repack essentially treats promisor and non-promisor packfiles as 2 - distinct partitions and does not mix them. Repack currently only works - on non-promisor packfiles and loose objects. + distinct partitions and does not mix them. - Dynamic object fetching invokes fetch-pack once *for each item* because most algorithms stumble upon a missing object and need to have @@ -280,9 +272,6 @@ to use those promisor remotes in that order." The user might want to work in a triangular work flow with multiple promisor remotes that each have an incomplete view of the repository. -- Allow repack to work on promisor packfiles (while keeping them distinct - from non-promisor packfiles). - - Allow non-pathname-based filters to make use of packfile bitmaps (when present). This was just an omission during the initial implementation. @@ -350,26 +339,26 @@ Related Links [0] https://crbug.com/git/2 Bug#2: Partial Clone -[1] https://public-inbox.org/git/20170113155253.1644-1-benpeart@microsoft.com/ + +[1] https://lore.kernel.org/git/20170113155253.1644-1-benpeart@microsoft.com/ + Subject: [RFC] Add support for downloading blobs on demand + Date: Fri, 13 Jan 2017 10:52:53 -0500 -[2] https://public-inbox.org/git/cover.1506714999.git.jonathantanmy@google.com/ + +[2] https://lore.kernel.org/git/cover.1506714999.git.jonathantanmy@google.com/ + Subject: [PATCH 00/18] Partial clone (from clone to lazy fetch in 18 patches) + Date: Fri, 29 Sep 2017 13:11:36 -0700 -[3] https://public-inbox.org/git/20170426221346.25337-1-jonathantanmy@google.com/ + +[3] https://lore.kernel.org/git/20170426221346.25337-1-jonathantanmy@google.com/ + Subject: Proposal for missing blob support in Git repos + Date: Wed, 26 Apr 2017 15:13:46 -0700 -[4] https://public-inbox.org/git/1488999039-37631-1-git-send-email-git@jeffhostetler.com/ + +[4] https://lore.kernel.org/git/1488999039-37631-1-git-send-email-git@jeffhostetler.com/ + Subject: [PATCH 00/10] RFC Partial Clone and Fetch + Date: Wed, 8 Mar 2017 18:50:29 +0000 -[5] https://public-inbox.org/git/20170505152802.6724-1-benpeart@microsoft.com/ + +[5] https://lore.kernel.org/git/20170505152802.6724-1-benpeart@microsoft.com/ + Subject: [PATCH v7 00/10] refactor the filter process code into a reusable module + Date: Fri, 5 May 2017 11:27:52 -0400 -[6] https://public-inbox.org/git/20170714132651.170708-1-benpeart@microsoft.com/ + +[6] https://lore.kernel.org/git/20170714132651.170708-1-benpeart@microsoft.com/ + Subject: [RFC/PATCH v2 0/1] Add support for downloading blobs on demand + Date: Fri, 14 Jul 2017 09:26:50 -0400 |