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From: Phillip Wood <phillip.wood123@gmail.com>
To: Srinidhi Kaushik <shrinidhi.kaushik@gmail.com>, git@vger.kernel.org
Subject: Re: [PATCH v5 3/3] t, doc: update tests, reference for "--force-if-includes"
Date: Wed, 23 Sep 2020 11:24:26 +0100	[thread overview]
Message-ID: <65574677-faad-f13c-810f-68e0d07479b1@gmail.com> (raw)
In-Reply-To: <20200923073022.61293-4-shrinidhi.kaushik@gmail.com>

Hi Srinidhi

On 23/09/2020 08:30, Srinidhi Kaushik wrote:
> Update test cases for the new option, and document its usage
> and update related references.
> 
>   - t/t5533-push-cas.sh:
>     Update test cases for "compare-and-swap" when used along with
>     "--force-if-includes" helps mitigate overwrites when remote
>     ref are updated in the background.
> 
>   - Documentation:
>     Add reference for the new option, configuration setting
>     ("push.useForceIfIncludes") and advise messages.
> 
> Signed-off-by: Srinidhi Kaushik <shrinidhi.kaushik@gmail.com>
> ---
>   Documentation/config/advice.txt |  9 ++++--
>   Documentation/config/push.txt   |  6 ++++
>   Documentation/git-push.txt      | 26 +++++++++++++++-
>   t/t5533-push-cas.sh             | 53 +++++++++++++++++++++++++++++++++
>   4 files changed, 90 insertions(+), 4 deletions(-)
> 
> diff --git a/Documentation/config/advice.txt b/Documentation/config/advice.txt
> index bdd37c3eaa..acbd0c09aa 100644
> --- a/Documentation/config/advice.txt
> +++ b/Documentation/config/advice.txt
> @@ -10,9 +10,8 @@ advice.*::
>   		that the check is disabled.
>   	pushUpdateRejected::
>   		Set this variable to 'false' if you want to disable
> -		'pushNonFFCurrent',
> -		'pushNonFFMatching', 'pushAlreadyExists',
> -		'pushFetchFirst', and 'pushNeedsForce'
> +		'pushNonFFCurrent', 'pushNonFFMatching', 'pushAlreadyExists',
> +		'pushFetchFirst', 'pushNeedsForce', and 'pushRefNeedsUpdate'
>   		simultaneously.
>   	pushNonFFCurrent::
>   		Advice shown when linkgit:git-push[1] fails due to a
> @@ -41,6 +40,10 @@ advice.*::
>   		we can still suggest that the user push to either
>   		refs/heads/* or refs/tags/* based on the type of the
>   		source object.
> +	pushRefNeedsUpdate::
> +		Shown when linkgit:git-push[1] rejects a forced update of
> +		a branch when its remote-tracking ref has updates that we
> +		do not have locally.
>   	statusAheadBehind::
>   		Shown when linkgit:git-status[1] computes the ahead/behind
>   		counts for a local ref compared to its remote tracking ref,
> diff --git a/Documentation/config/push.txt b/Documentation/config/push.txt
> index f5e5b38c68..fd981f7808 100644
> --- a/Documentation/config/push.txt
> +++ b/Documentation/config/push.txt
> @@ -114,3 +114,9 @@ push.recurseSubmodules::
>   	specifying '--recurse-submodules=check|on-demand|no'.
>   	If not set, 'no' is used by default, unless 'submodule.recurse' is
>   	set (in which case a 'true' value means 'on-demand').
> +
> +push.useForceIfIncludes::
> +	If set to "true", it is equivalent to specifying
> +	"--force-if-includes" as an option to linkgit:git-push[1]

I think we normally use backquotes for option names in the documentation 
so this would be `--force-if-includes`

> +	in the command line. Adding "--no-force-if-includes" at the
> +	time of push overrides this configuration setting.
> diff --git a/Documentation/git-push.txt b/Documentation/git-push.txt
> index 3b8053447e..706380d263 100644
> --- a/Documentation/git-push.txt
> +++ b/Documentation/git-push.txt
> @@ -13,7 +13,7 @@ SYNOPSIS
>   	   [--repo=<repository>] [-f | --force] [-d | --delete] [--prune] [-v | --verbose]
>   	   [-u | --set-upstream] [-o <string> | --push-option=<string>]
>   	   [--[no-]signed|--signed=(true|false|if-asked)]
> -	   [--force-with-lease[=<refname>[:<expect>]]]
> +	   [--force-with-lease[=<refname>[:<expect>]] [--force-if-includes]]
>   	   [--no-verify] [<repository> [<refspec>...]]
>   
>   DESCRIPTION
> @@ -320,6 +320,14 @@ seen and are willing to overwrite, then rewrite history, and finally
>   force push changes to `master` if the remote version is still at
>   `base`, regardless of what your local `remotes/origin/master` has been
>   updated to in the background.
> ++
> +Alternatively, specifying "--force-if-includes" an an ancillary option
> +along with "--force-with-lease[=<refname>]" (i.e., without saying what
> +exact commit the ref on the remote side must be pointing at, or which
> +refs on the remote side are being protected) at the time of "push" will
> +verify if updates from the remote-tracking refs that may have been
> +implicitly updated in the background are integrated locally before
> +allowing a forced update.
>   
>   -f::
>   --force::
> @@ -341,6 +349,22 @@ one branch, use a `+` in front of the refspec to push (e.g `git push
>   origin +master` to force a push to the `master` branch). See the
>   `<refspec>...` section above for details.
>   
> +--[no-]force-if-includes::
> +	Force an update only if the tip of the remote-tracking ref
> +	has been integrated locally.
> ++
> +This option enables a check that verifies if the tip of the
> +remote-tracking ref is reachable from one of the "reflog" entries of
> +the local branch based in it for a rewrite. The check ensures that any
> +updates from the remote have been incorporated locally by rejecting the
> +forced update if that is not the case.
> ++
> +If the option is passed without specifying "--force-with-lease", or
> +specified along with "--force-with-lease=<refname>:<expect>", it is
> +a "no-op".
> ++
> +Specifying "--no-force-if-includes" disables this behavior.
> +
>   --repo=<repository>::
>   	This option is equivalent to the <repository> argument. If both
>   	are specified, the command-line argument takes precedence.
> diff --git a/t/t5533-push-cas.sh b/t/t5533-push-cas.sh
> index 0b0eb1d025..620d101f50 100755
> --- a/t/t5533-push-cas.sh
> +++ b/t/t5533-push-cas.sh
> @@ -256,4 +256,57 @@ test_expect_success 'background updates of REMOTE can be mitigated with a non-up
>   	)
>   '

It's great to see a couple of tests, however I think it would be useful 
to have some more - one to check that we do not force when the remote is 
rewound and a couple to show that we do force when we should. In 
particular we should still force if we `pull --rebase` and then rewrite 
the local history using `rebase -i` so that the remote ref is no longer 
an ancestor of the local HEAD.

Best Wishes

Phillip

> +test_expect_success 'background updates of REMOTE can be mitigated with "--force-if-includes"' '
> +	rm -rf src dst &&
> +	git init --bare src.bare &&
> +	test_when_finished "rm -rf src.bare" &&
> +	git clone --no-local src.bare dst &&
> +	test_when_finished "rm -rf dst" &&
> +	(
> +		cd dst &&
> +		test_commit G &&
> +		git push origin master:master
> +	) &&
> +	git clone --no-local src.bare dst2 &&
> +	test_when_finished "rm -rf dst2" &&
> +	(
> +		cd dst2 &&
> +		test_commit H &&
> +		git push
> +	) &&
> +	(
> +		cd dst &&
> +		test_commit I &&
> +		git fetch origin &&
> +		test_must_fail git push --force-with-lease --force-if-includes origin
> +	)
> +'
> +
> +test_expect_success 'background updates of REMOTE can be mitigated with "push.useForceIfIncludes"' '
> +	rm -rf src dst &&
> +	git init --bare src.bare &&
> +	test_when_finished "rm -rf src.bare" &&
> +	git clone --no-local src.bare dst &&
> +	test_when_finished "rm -rf dst" &&
> +	(
> +		cd dst &&
> +		test_commit G &&
> +		git push origin master:master
> +	) &&
> +	git clone --no-local src.bare dst2 &&
> +	test_when_finished "rm -rf dst2" &&
> +	(
> +		cd dst2 &&
> +		test_commit H &&
> +		git push
> +	) &&
> +	(
> +		cd dst &&
> +		test_commit I &&
> +		git fetch origin &&
> +		git config --local push.useForceIfIncludes "true" &&
> +		test_must_fail git push --force-with-lease origin
> +	)
> +'
> +
>   test_done
> 


  reply	other threads:[~2020-09-23 10:24 UTC|newest]

Thread overview: 120+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-04 18:51 [PATCH] push: make `--force-with-lease[=<ref>]` safer Srinidhi Kaushik
2020-09-07 15:23 ` Phillip Wood
2020-09-08 15:48   ` Srinidhi Kaushik
2020-09-07 16:14 ` Junio C Hamano
2020-09-08 16:00   ` Srinidhi Kaushik
2020-09-08 21:00     ` Junio C Hamano
2020-09-07 19:45 ` Johannes Schindelin
2020-09-08 15:58   ` Junio C Hamano
2020-09-09  3:40     ` Johannes Schindelin
2020-09-08 16:59   ` Srinidhi Kaushik
2020-09-16 11:55     ` Johannes Schindelin
2020-09-08 19:34   ` Junio C Hamano
2020-09-09  3:44     ` Johannes Schindelin
2020-09-10 10:22       ` Johannes Schindelin
2020-09-10 14:44         ` Srinidhi Kaushik
2020-09-11 22:16           ` Johannes Schindelin
2020-09-14 11:06             ` Srinidhi Kaushik
2020-09-14 20:08             ` Junio C Hamano
2020-09-16  5:31               ` Srinidhi Kaushik
2020-09-16 10:20                 ` Johannes Schindelin
2020-09-19 17:48                   ` Junio C Hamano
2020-09-10 14:46         ` Junio C Hamano
2020-09-11 22:17           ` Johannes Schindelin
2020-09-14 20:07             ` Junio C Hamano
2020-09-12 15:04 ` [PATCH v2 0/2] push: make "--force-with-lease" safer Srinidhi Kaushik
2020-09-12 15:04   ` [PATCH v2 1/2] push: add "--[no-]force-if-includes" Srinidhi Kaushik
2020-09-12 18:20     ` Junio C Hamano
2020-09-12 21:25       ` Srinidhi Kaushik
2020-09-12 15:04   ` [PATCH v2 2/2] push: enable "forceIfIncludesWithLease" by default Srinidhi Kaushik
2020-09-12 18:22     ` Junio C Hamano
2020-09-12 18:15   ` [PATCH v2 0/2] push: make "--force-with-lease" safer Junio C Hamano
2020-09-12 21:03     ` Srinidhi Kaushik
2020-09-13 14:54   ` [PATCH v3 0/7] push: add "--[no-]force-if-includes" Srinidhi Kaushik
2020-09-13 14:54     ` [PATCH v3 1/7] remote: add reflog check for "force-if-includes" Srinidhi Kaushik
2020-09-14 20:17       ` Junio C Hamano
2020-09-16 10:51         ` Srinidhi Kaushik
2020-09-14 20:31       ` Junio C Hamano
2020-09-14 21:13       ` Junio C Hamano
2020-09-16 12:35       ` Johannes Schindelin
2020-09-19 17:01         ` Srinidhi Kaushik
2020-09-13 14:54     ` [PATCH v3 2/7] transport: add flag for "--[no-]force-if-includes" Srinidhi Kaushik
2020-09-13 14:54     ` [PATCH v3 3/7] send-pack: check ref status for "force-if-includes" Srinidhi Kaushik
2020-09-13 14:54     ` [PATCH v3 4/7] transport-helper: update " Srinidhi Kaushik
2020-09-13 14:54     ` [PATCH v3 5/7] builtin/push: add option "--[no-]force-if-includes" Srinidhi Kaushik
2020-09-16 12:36       ` Johannes Schindelin
2020-09-13 14:54     ` [PATCH v3 6/7] doc: add reference for "--[no-]force-if-includes" Srinidhi Kaushik
2020-09-14 21:01       ` Junio C Hamano
2020-09-16  5:35         ` Srinidhi Kaushik
2020-09-13 14:54     ` [PATCH v3 7/7] t: add tests for "force-if-includes" Srinidhi Kaushik
2020-09-16 12:47     ` [PATCH v3 0/7] push: add "--[no-]force-if-includes" Johannes Schindelin
2020-09-19 17:03   ` [PATCH v4 0/3] " Srinidhi Kaushik
2020-09-19 17:03     ` [PATCH v4 1/3] push: add reflog check for "--force-if-includes" Srinidhi Kaushik
2020-09-19 20:03       ` Junio C Hamano
2020-09-21  8:42         ` Srinidhi Kaushik
2020-09-21 18:48           ` Junio C Hamano
2020-09-23 10:22             ` Srinidhi Kaushik
2020-09-23 16:47               ` Junio C Hamano
2020-09-21 13:19         ` Phillip Wood
2020-09-21 16:12           ` Junio C Hamano
2020-09-21 18:11             ` Junio C Hamano
2020-09-23 10:27           ` Srinidhi Kaushik
2020-09-19 17:03     ` [PATCH v4 2/3] push: parse and set flag " Srinidhi Kaushik
2020-09-19 20:26       ` Junio C Hamano
2020-09-19 17:03     ` [PATCH v4 3/3] t, doc: update tests, reference " Srinidhi Kaushik
2020-09-19 20:42       ` Junio C Hamano
2020-09-23  7:30     ` [PATCH v5 0/3] push: add "--[no-]force-if-includes" Srinidhi Kaushik
2020-09-23  7:30       ` [PATCH v5 1/3] push: add reflog check for "--force-if-includes" Srinidhi Kaushik
2020-09-23 10:18         ` Phillip Wood
2020-09-23 11:26           ` Srinidhi Kaushik
2020-09-23 16:24           ` Junio C Hamano
2020-09-23 16:29         ` Junio C Hamano
2020-09-23  7:30       ` [PATCH v5 2/3] push: parse and set flag " Srinidhi Kaushik
2020-09-23  7:30       ` [PATCH v5 3/3] t, doc: update tests, reference " Srinidhi Kaushik
2020-09-23 10:24         ` Phillip Wood [this message]
2020-09-26 10:13       ` [PATCH v6 0/3] push: add "--[no-]force-if-includes" Srinidhi Kaushik
2020-09-26 10:13         ` [PATCH v6 1/3] push: add reflog check for "--force-if-includes" Srinidhi Kaushik
2020-09-26 10:13         ` [PATCH v6 2/3] push: parse and set flag " Srinidhi Kaushik
2020-09-26 10:13         ` [PATCH v6 3/3] t, doc: update tests, reference " Srinidhi Kaushik
2020-09-26 10:21         ` [PATCH v6 0/3] push: add "--[no-]force-if-includes" Srinidhi Kaushik
2020-09-26 11:46         ` [PATCH v7 " Srinidhi Kaushik
2020-09-26 11:46           ` [PATCH v7 1/3] push: add reflog check for "--force-if-includes" Srinidhi Kaushik
2020-09-26 23:42             ` Junio C Hamano
2020-09-27 12:27               ` Srinidhi Kaushik
2020-09-26 11:46           ` [PATCH v7 2/3] push: parse and set flag " Srinidhi Kaushik
2020-09-26 11:46           ` [PATCH v7 3/3] t, doc: update tests, reference " Srinidhi Kaushik
2020-09-27 14:17           ` [PATCH v8 0/3] push: add "--[no-]force-if-includes" Srinidhi Kaushik
2020-09-27 14:17             ` [PATCH v8 1/3] push: add reflog check for "--force-if-includes" Srinidhi Kaushik
2020-09-27 14:17             ` [PATCH v8 2/3] push: parse and set flag " Srinidhi Kaushik
2020-09-27 14:17             ` [PATCH v8 3/3] t, doc: update tests, reference " Srinidhi Kaushik
2020-09-30 12:54               ` Philip Oakley
2020-09-30 14:27                 ` Srinidhi Kaushik
2020-09-28 17:31             ` [PATCH v8 0/3] push: add "--[no-]force-if-includes" Junio C Hamano
2020-09-28 17:46               ` SZEDER Gábor
2020-09-28 19:34                 ` Srinidhi Kaushik
2020-09-28 19:51                   ` Junio C Hamano
2020-09-28 20:00                 ` Junio C Hamano
2020-10-01  8:21             ` [PATCH v9 " Srinidhi Kaushik
2020-10-01  8:21               ` [PATCH v9 1/3] push: add reflog check for "--force-if-includes" Srinidhi Kaushik
2020-10-02 13:52                 ` Johannes Schindelin
2020-10-02 14:50                   ` Johannes Schindelin
2020-10-02 16:22                     ` Junio C Hamano
2020-10-02 15:07                   ` Srinidhi Kaushik
2020-10-02 16:41                     ` Junio C Hamano
2020-10-02 19:39                       ` Srinidhi Kaushik
2020-10-02 20:14                         ` Junio C Hamano
2020-10-02 20:58                           ` Srinidhi Kaushik
2020-10-02 21:36                             ` Junio C Hamano
2020-10-02 16:26                   ` Junio C Hamano
2020-10-01  8:21               ` [PATCH v9 2/3] push: parse and set flag " Srinidhi Kaushik
2020-10-01  8:21               ` [PATCH v9 3/3] t, doc: update tests, reference " Srinidhi Kaushik
2020-10-01 15:46               ` [PATCH v9 0/3] push: add "--[no-]force-if-includes" Junio C Hamano
2020-10-01 17:12                 ` Junio C Hamano
2020-10-01 17:54                   ` Srinidhi Kaushik
2020-10-01 18:32                     ` Junio C Hamano
2020-10-02 16:50                     ` Junio C Hamano
2020-10-02 19:42                       ` Srinidhi Kaushik
2020-10-03 12:10               ` [PATCH v10 " Srinidhi Kaushik
2020-10-03 12:10                 ` [PATCH v10 1/3] push: add reflog check for "--force-if-includes" Srinidhi Kaushik
2020-10-03 12:10                 ` [PATCH v10 2/3] push: parse and set flag " Srinidhi Kaushik
2020-10-03 12:10                 ` [PATCH v10 3/3] t, doc: update tests, reference " Srinidhi Kaushik

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