On Thu, Apr 04, 2024 at 06:29:28PM +0000, Justin Tobler via GitGitGadget wrote:
> From: Justin Tobler <jltobler@xxxxxxxxx>
>
> In future tests it will be neccesary to create repositories with a set
> number of tables. To make this easier, introduce the
> `GIT_TEST_REFTABLE_AUTOCOMPACTION` environment variable that, when set
> to false, disables autocompaction of reftables.
>
> Signed-off-by: Justin Tobler <jltobler@xxxxxxxxx>
> ---
> refs/reftable-backend.c | 4 ++++
> t/t0610-reftable-basics.sh | 21 +++++++++++++++++++++
> 2 files changed, 25 insertions(+)
>
> diff --git a/refs/reftable-backend.c b/refs/reftable-backend.c
> index 0bed6d2ab48..6b6191f89dd 100644
> --- a/refs/reftable-backend.c
> +++ b/refs/reftable-backend.c
> @@ -18,6 +18,7 @@
> #include "../reftable/reftable-merged.h"
> #include "../setup.h"
> #include "../strmap.h"
> +#include "parse.h"
> #include "refs-internal.h"
>
> /*
> @@ -248,6 +249,9 @@ static struct ref_store *reftable_be_init(struct repository *repo,
> refs->write_options.hash_id = repo->hash_algo->format_id;
> refs->write_options.default_permissions = calc_shared_perm(0666 & ~mask);
>
> + if (!git_env_bool("GIT_TEST_REFTABLE_AUTOCOMPACTION", 1))
> + refs->write_options.disable_auto_compact = 1;
> +
This could be simplified to:
```
refs->write_options.disable_auto_compact =
!git_env_bool("GIT_TEST_REFTABLE_AUTOCOMPACTION", 1);
```
Patrick
> /*
> * Set up the main reftable stack that is hosted in GIT_COMMON_DIR.
> * This stack contains both the shared and the main worktree refs.
> diff --git a/t/t0610-reftable-basics.sh b/t/t0610-reftable-basics.sh
> index 931d888bbbc..c9e10b34684 100755
> --- a/t/t0610-reftable-basics.sh
> +++ b/t/t0610-reftable-basics.sh
> @@ -299,6 +299,27 @@ test_expect_success 'ref transaction: writes cause auto-compaction' '
> test_line_count = 1 repo/.git/reftable/tables.list
> '
>
> +test_expect_success 'ref transaction: env var disables compaction' '
> + test_when_finished "rm -rf repo" &&
> +
> + git init repo &&
> + test_commit -C repo A &&
> +
> + start=$(wc -l <repo/.git/reftable/tables.list) &&
> + iterations=5 &&
> + expected=$((start + iterations)) &&
> +
> + for i in $(test_seq $iterations)
> + do
> + GIT_TEST_REFTABLE_AUTOCOMPACTION=false \
> + git -C repo update-ref branch-$i HEAD || return 1
> + done &&
> + test_line_count = $expected repo/.git/reftable/tables.list &&
> +
> + git -C repo update-ref foo HEAD &&
> + test_line_count -lt $expected repo/.git/reftable/tables.list
> +'
> +
> check_fsync_events () {
> local trace="$1" &&
> shift &&
> --
> gitgitgadget
>
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