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From: "Derrick Stolee via GitGitGadget" <gitgitgadget@gmail.com>
To: git@vger.kernel.org
Cc: gitster@pobox.com, vdye@github.com,
	Derrick Stolee <derrickstolee@github.com>,
	Derrick Stolee <derrickstolee@github.com>
Subject: [PATCH v2 2/2] scalar: make 'unregister' idempotent
Date: Thu, 22 Sep 2022 13:37:17 +0000	[thread overview]
Message-ID: <f5d8d6e490102202147c965a4d50c4f3b02d4a5d.1663853837.git.gitgitgadget@gmail.com> (raw)
In-Reply-To: <pull.1358.v2.git.1663853837.gitgitgadget@gmail.com>

From: Derrick Stolee <derrickstolee@github.com>

The 'scalar unregister' command removes a repository from the list of
registered Scalar repositories and removes it from the list of
repositories registered for background maintenance. If the repository
was not already registered for background maintenance, then the command
fails, even if the repository was still registered as a Scalar
repository.

After using 'scalar clone' or 'scalar register', the repository would be
enrolled in background maintenance since those commands run 'git
maintenance start'. If the user runs 'git maintenance unregister' on
that repository, then it is still in the list of repositories which get
new config updates from 'scalar reconfigure'. The 'scalar unregister'
command would fail since 'git maintenance unregister' would fail.

Further, the add_or_remove_enlistment() method in scalar.c already has
this idempotent nature built in as an expectation since it returns zero
when the scalar.repo list already has the proper containment of the
repository.

The previous change added the 'git maintenance unregister --force'
option, so use it within 'scalar unregister' to make it idempotent.

Signed-off-by: Derrick Stolee <derrickstolee@github.com>
---
 scalar.c          | 5 ++++-
 t/t9210-scalar.sh | 5 ++++-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/scalar.c b/scalar.c
index c5c1ce68919..6de9c0ee523 100644
--- a/scalar.c
+++ b/scalar.c
@@ -207,7 +207,10 @@ static int set_recommended_config(int reconfigure)
 
 static int toggle_maintenance(int enable)
 {
-	return run_git("maintenance", enable ? "start" : "unregister", NULL);
+	return run_git("maintenance",
+		       enable ? "start" : "unregister",
+		       enable ? NULL : "--force",
+		       NULL);
 }
 
 static int add_or_remove_enlistment(int add)
diff --git a/t/t9210-scalar.sh b/t/t9210-scalar.sh
index 14ca575a214..be51a8bb7a4 100755
--- a/t/t9210-scalar.sh
+++ b/t/t9210-scalar.sh
@@ -116,7 +116,10 @@ test_expect_success 'scalar unregister' '
 	test_must_fail git config --get --global --fixed-value \
 		maintenance.repo "$(pwd)/vanish/src" &&
 	scalar list >scalar.repos &&
-	! grep -F "$(pwd)/vanish/src" scalar.repos
+	! grep -F "$(pwd)/vanish/src" scalar.repos &&
+
+	# scalar unregister should be idempotent
+	scalar unregister vanish
 '
 
 test_expect_success 'set up repository to clone' '
-- 
gitgitgadget

  parent reply	other threads:[~2022-09-22 13:39 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-20  1:02 [PATCH] maintenance: make unregister idempotent Derrick Stolee via GitGitGadget
2022-09-21 17:19 ` Junio C Hamano
2022-09-22 12:37   ` Derrick Stolee
2022-09-22 19:31     ` Junio C Hamano
2022-09-22 19:46       ` Derrick Stolee
2022-09-22 20:44         ` Junio C Hamano
2022-09-22 13:37 ` [PATCH v2 0/2] scalar: " Derrick Stolee via GitGitGadget
2022-09-22 13:37   ` [PATCH v2 1/2] maintenance: add 'unregister --force' Derrick Stolee via GitGitGadget
2022-09-23 13:08     ` SZEDER Gábor
2022-09-26 13:32       ` Derrick Stolee
2022-09-26 15:39         ` Ævar Arnfjörð Bjarmason
2022-09-26 17:25           ` Derrick Stolee
2022-09-26 19:17             ` Junio C Hamano
2022-09-22 13:37   ` Derrick Stolee via GitGitGadget [this message]
2022-09-26 18:48   ` [PATCH v3 0/3] scalar: make unregister idempotent Derrick Stolee via GitGitGadget
2022-09-26 18:48     ` [PATCH v3 1/3] maintenance: add 'unregister --force' Derrick Stolee via GitGitGadget
2022-09-26 19:23       ` Junio C Hamano
2022-09-26 20:49         ` Derrick Stolee
2022-09-26 21:55       ` Junio C Hamano
2022-09-27 11:38         ` Derrick Stolee
2022-09-27 11:54           ` Derrick Stolee
2022-09-27 13:36             ` Ævar Arnfjörð Bjarmason
2022-09-27 13:55               ` Derrick Stolee
2022-09-26 18:48     ` [PATCH v3 2/3] scalar: make 'unregister' idempotent Derrick Stolee via GitGitGadget
2022-09-26 18:48     ` [PATCH v3 3/3] gc: replace config subprocesses with API calls Derrick Stolee via GitGitGadget
2022-09-26 19:27       ` Junio C Hamano
2022-09-27 13:56     ` [PATCH v4 0/4] scalar: make unregister idempotent Derrick Stolee via GitGitGadget
2022-09-27 13:56       ` [PATCH v4 1/4] maintenance: add 'unregister --force' Derrick Stolee via GitGitGadget
2022-09-27 13:56       ` [PATCH v4 2/4] scalar: make 'unregister' idempotent Derrick Stolee via GitGitGadget
2022-09-27 13:57       ` [PATCH v4 3/4] gc: replace config subprocesses with API calls Derrick Stolee via GitGitGadget
2022-09-27 13:57       ` [PATCH v4 4/4] string-list: document iterator behavior on NULL input Derrick Stolee via GitGitGadget
2022-09-27 16:39         ` Junio C Hamano
2022-09-27 16:31       ` [PATCH v4 0/4] scalar: make unregister idempotent Junio C Hamano
2022-09-27 16:54         ` Derrick Stolee

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