Compared to v2 [1], v3 grows a bit. The biggest difference is .git/shallow is not updated by default (except when you clone from a shallow repository). When you send something, the "safe" refs that do not need new shallow roots are accepted at the receiver end, the others rejected.
To accept those other refs, either use "fetch --update-shallow" or enable receive.shallowupdate on the receiver side of a push. Filtering "safe" refs requires walking through some commits, so it'll be more expensive than normal full clones. This is especially true for the receiver of a push (see 07/28 and 17/28). I envision shallow repos are used as upstream to archive old history, so this is not a good news. Commit cache (or pack v4) might help. We might even be able to move some work from receive-pack to send-pack to reduce server load.. [1] http://mid.gmane.org/1374314290-5976-1-git-send-email-pclo...@gmail.com Nguyễn Thái Ngọc Duy (28): transport.h: remove send_pack prototype, already defined in send-pack.h send-pack: forbid pushing from a shallow repository clone: prevent --reference to a shallow repository update-server-info: do not publish shallow clones This part is just cleanup. Advertise shallow graft information on the server end connect.c: teach get_remote_heads to parse "shallow" lines shallow.c: add remove_reachable_shallow_points() shallow.c: add mark_new_shallow_refs() shallow.c: extend setup_*_shallow() to accept extra shallow points fetch-pack.c: move shallow update code out of fetch_pack() fetch-pack.h: one statement per bitfield declaration clone: support remote shallow repository fetch: support fetching from a shallow repository upload-pack: make sure deepening preserves shallow roots fetch: add --update-shallow to get refs that require updating .git/shallow Basic shallow fetch/clone support on git protocol receive-pack: reorder some code in unpack() Support pushing from a shallow clone New var GIT_SHALLOW_FILE to propagate --shallow-file to subprocesses connected.c: add new variant that runs with --shallow-file receive-pack: allow pushing with new shallow roots send-pack: support pushing to a shallow clone remote-curl: pass ref SHA-1 to fetch-pack as well Push support Support fetch/clone over http receive-pack: support pushing to a shallow clone via http send-pack: support pushing from a shallow clone via http smart-http support git-clone.txt: remove shallow clone limitations clone: use git protocol for cloning shallow repo locally prune: clean .git/shallow after pruning objects miscellaneous Documentation/config.txt | 4 + Documentation/fetch-options.txt | 14 +- Documentation/git-clone.txt | 7 +- Documentation/gitremote-helpers.txt | 7 + Documentation/technical/pack-protocol.txt | 7 +- builtin/clone.c | 18 +- builtin/fetch-pack.c | 23 +- builtin/fetch.c | 15 +- builtin/gc.c | 1 + builtin/prune.c | 4 + builtin/receive-pack.c | 248 +++++++++++++++++---- builtin/send-pack.c | 5 +- cache.h | 1 + commit.h | 19 +- connect.c | 14 +- connected.c | 42 +++- connected.h | 2 + environment.c | 6 + fetch-pack.c | 132 ++++++++++-- fetch-pack.h | 29 +-- git.c | 2 +- remote-curl.c | 33 ++- remote.h | 5 +- send-pack.c | 20 +- server-info.c | 9 + shallow.c | 348 +++++++++++++++++++++++++++++- t/t5536-fetch-shallow.sh (new +x) | 193 +++++++++++++++++ t/t5537-push-shallow.sh (new +x) | 184 ++++++++++++++++ t/t5601-clone.sh | 7 + transport-helper.c | 6 + transport.c | 22 +- transport.h | 16 +- upload-pack.c | 8 +- 33 files changed, 1323 insertions(+), 128 deletions(-) create mode 100755 t/t5536-fetch-shallow.sh create mode 100755 t/t5537-push-shallow.sh -- 1.8.2.83.gc99314b -- To unsubscribe from this list: send the line "unsubscribe git" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
