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From: Jonathan Tan <jonathantanmy@google.com>
To: git@vger.kernel.org
Cc: Jonathan Tan <jonathantanmy@google.com>, gitster@pobox.com
Subject: [PATCH v2 0/7] Lazy fetch with subprocess
Date: Tue, 11 Aug 2020 15:52:15 -0700	[thread overview]
Message-ID: <cover.1597184948.git.jonathantanmy@google.com> (raw)
In-Reply-To: <20200724223844.2723397-1-jonathantanmy@google.com>

These patches are based on jc/no-update-fetch-head.

After the email exchange with Junio, I went back and took a look to see
if I could accomplish what I needed without using NULL methods in the
fetch negotiators. And I could do it - I just had to be more careful
when iterating over refs and dereferencing them. You can see it in patch
5.

In version 1, I wrote that these needed to be done:

 - Commit messages
 - User-facing documentation
 - A way to prevent a promisor-remote fetch from invoking another
   promisor-remote fetch (use a file as a lock?)
 - Remove no_dependents code (fetch-pack, transport)

1, 2, and 4 are already done. As for 3, we currently don't have this
safeguard before this patch set, so I did not include one in this patch
set either.

Jonathan Tan (7):
  negotiator/null: add null fetch negotiator
  fetch: allow refspecs specified through stdin
  fetch: avoid reading submodule config until needed
  fetch: only populate existing_refs if needed
  fetch-pack: do not lazy-fetch during ref iteration
  promisor-remote: lazy-fetch objects in subprocess
  fetch-pack: remove no_dependents code

 Documentation/config/fetch.txt            |   5 +-
 Documentation/git-fetch.txt               |   4 +
 Documentation/technical/partial-clone.txt |  13 +-
 Makefile                                  |   1 +
 builtin/fetch-pack.c                      |   4 -
 builtin/fetch.c                           |  42 ++++-
 fetch-negotiator.c                        |   5 +
 fetch-pack.c                              | 189 +++++++++-------------
 fetch-pack.h                              |  14 --
 negotiator/null.c                         |  44 +++++
 negotiator/null.h                         |   8 +
 promisor-remote.c                         |  46 +++---
 remote-curl.c                             |   6 -
 repo-settings.c                           |   2 +
 repository.h                              |   1 +
 submodule-config.c                        |   5 +-
 t/t0410-partial-clone.sh                  |   2 +-
 t/t4067-diff-partial-clone.sh             |   8 +-
 t/t5554-null-fetch-negotiator.sh          |  22 +++
 t/t5601-clone.sh                          |   2 +-
 t/t5616-partial-clone.sh                  |  20 +++
 transport.c                               |   4 -
 transport.h                               |   7 -
 23 files changed, 252 insertions(+), 202 deletions(-)
 create mode 100644 negotiator/null.c
 create mode 100644 negotiator/null.h
 create mode 100755 t/t5554-null-fetch-negotiator.sh

-- 
2.28.0.236.gb10cc79966-goog


  parent reply	other threads:[~2020-08-11 22:52 UTC|newest]

Thread overview: 57+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-24 22:38 [RFC PATCH] Modify fetch-pack to no longer die on error? Jonathan Tan
2020-07-24 23:07 ` Junio C Hamano
2020-07-24 23:11 ` Junio C Hamano
2020-07-25 21:41   ` Jeff King
2020-07-25 23:01     ` Junio C Hamano
2020-07-27 17:11       ` Jeff King
2020-07-28 19:23       ` Jonathan Tan
2020-07-28 20:08         ` Jeff King
2020-07-29 18:53           ` Jonathan Tan
2020-07-29 19:29             ` Jeff King
2020-07-29 19:02           ` Junio C Hamano
2020-07-29 22:55             ` Jonathan Tan
2020-08-05  1:20 ` [RFC PATCH 0/7] Lazy fetch with subprocess Jonathan Tan
2020-08-05  1:20   ` [RFC PATCH 1/7] fetch-pack: allow NULL negotiator->add_tip Jonathan Tan
2020-08-05 19:53     ` Junio C Hamano
2020-08-07 20:53       ` Jonathan Tan
2020-08-05  1:20   ` [RFC PATCH 2/7] fetch-pack: allow NULL negotiator->known_common Jonathan Tan
2020-08-05 20:08     ` Junio C Hamano
2020-08-05 22:11       ` Junio C Hamano
2020-08-07 20:59         ` Jonathan Tan
2020-08-05  1:20   ` [RFC PATCH 3/7] negotiator/null: add null fetch negotiator Jonathan Tan
2020-08-05  1:20   ` [RFC PATCH 4/7] fetch: --stdin Jonathan Tan
2020-08-05 20:33     ` Junio C Hamano
2020-08-07 21:10       ` Jonathan Tan
2020-08-07 21:58         ` Junio C Hamano
2020-08-07 21:10       ` Jonathan Tan
2020-08-05  1:20   ` [RFC PATCH 5/7] fetch: submodule config Jonathan Tan
2020-08-05  1:20   ` [RFC PATCH 6/7] fetch: only populate existing_refs if needed Jonathan Tan
2020-08-05  1:20   ` [RFC PATCH 7/7] promisor-remote: use subprocess to fetch Jonathan Tan
2020-08-11 22:52 ` Jonathan Tan [this message]
2020-08-11 22:52   ` [PATCH v2 1/7] negotiator/null: add null fetch negotiator Jonathan Tan
2020-08-12 12:55     ` Derrick Stolee
2020-08-12 16:44       ` Junio C Hamano
2020-08-12 17:29         ` Jonathan Tan
2020-08-11 22:52   ` [PATCH v2 2/7] fetch: allow refspecs specified through stdin Jonathan Tan
2020-08-11 22:52   ` [PATCH v2 3/7] fetch: avoid reading submodule config until needed Jonathan Tan
2020-08-12 17:34     ` Junio C Hamano
2020-08-11 22:52   ` [PATCH v2 4/7] fetch: only populate existing_refs if needed Jonathan Tan
2020-08-12 18:06     ` Junio C Hamano
2020-08-11 22:52   ` [PATCH v2 5/7] fetch-pack: do not lazy-fetch during ref iteration Jonathan Tan
2020-08-12 18:25     ` Junio C Hamano
2020-08-11 22:52   ` [PATCH v2 6/7] promisor-remote: lazy-fetch objects in subprocess Jonathan Tan
2020-08-12 18:28     ` Junio C Hamano
2020-08-11 22:52   ` [PATCH v2 7/7] fetch-pack: remove no_dependents code Jonathan Tan
2020-08-12 12:51   ` [PATCH v2 0/7] Lazy fetch with subprocess Derrick Stolee
2020-08-18  4:01 ` [PATCH v3 " Jonathan Tan
2020-08-18  4:01   ` [PATCH v3 1/7] negotiator/noop: add noop fetch negotiator Jonathan Tan
2020-08-18  4:01   ` [PATCH v3 2/7] fetch: allow refspecs specified through stdin Jonathan Tan
2020-08-18  4:01   ` [PATCH v3 3/7] fetch: avoid reading submodule config until needed Jonathan Tan
2020-08-18  4:01   ` [PATCH v3 4/7] fetch: only populate existing_refs if needed Jonathan Tan
2020-08-18  4:01   ` [PATCH v3 5/7] fetch-pack: do not lazy-fetch during ref iteration Jonathan Tan
2020-08-18  4:01   ` [PATCH v3 6/7] promisor-remote: lazy-fetch objects in subprocess Jonathan Tan
2020-08-18  4:01   ` [PATCH v3 7/7] fetch-pack: remove no_dependents code Jonathan Tan
2020-08-18 19:56   ` [PATCH v3 0/7] Lazy fetch with subprocess Junio C Hamano
2020-08-18 22:32     ` Junio C Hamano
2020-08-18 23:36       ` [PATCH] fixup! promisor-remote: lazy-fetch objects in subprocess Jonathan Tan
2020-08-18 23:57         ` Junio C Hamano

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