Subject: Re: [PATCH v2 6/6] fetch: add 'refs/bundle/' to log.excludeDecoration

From: Josh Steadmon <[email-masked]>
Date: Thu, 21 Jul 2022 14:47:35 -0700

On 2022.06.29 20:40, Derrick Stolee via GitGitGadget wrote:
> From: Derrick Stolee <[email-masked]>
> 
> When fetching from a bundle URI, the branches of that bundle are stored
> in a different ref namespace: refs/bundles/. This namespace is intended
> to assist with later 'git fetch' negotiations with a Git server,
> allowing the client to advertise which data it already has from a bundle
> URI.
> 
> These references can be confusing for a user when they appear as a
> decoration in 'git log' output. Add "refs/bundles/" to the multi-valued
> log.excludeDecoration config value. This is similar to the way
> "refs/prefetch/" is hidden by background prefetch operations in 'git
> maintenance' as added by 96eaffebb (maintenance: set
> log.excludeDecoration durin prefetch, 2021-01-19).
> 
> Signed-off-by: Derrick Stolee <[email-masked]>
> ---
>  Documentation/fetch-options.txt |  3 ++-
>  bundle-uri.c                    |  7 +++++++
>  t/t5558-fetch-bundle-uri.sh     | 12 +++++++++---
>  3 files changed, 18 insertions(+), 4 deletions(-)
> 
> diff --git a/Documentation/fetch-options.txt b/Documentation/fetch-options.txt
> index 09bd1feeed8..8b801bcc2f3 100644
> --- a/Documentation/fetch-options.txt
> +++ b/Documentation/fetch-options.txt
> @@ -321,4 +321,5 @@ endif::git-pull[]
>  --bundle-uri=<uri>::
>  	Instead of fetching from a remote, fetch a bundle from the given
>  	`<uri>` and unbundle the data into the local repository. The refs
> -	in the bundle will be stored under the `refs/bundle/*` namespace.
> +	in the bundle will be stored under the hidden `refs/bundle/*`
> +	namespace.
> diff --git a/bundle-uri.c b/bundle-uri.c
> index 4c793843a2a..6e0f1cb06fd 100644
> --- a/bundle-uri.c
> +++ b/bundle-uri.c
> @@ -1,6 +1,7 @@
>  #include "cache.h"
>  #include "bundle-uri.h"
>  #include "bundle.h"
> +#include "config.h"
>  #include "object-store.h"
>  #include "refs.h"
>  #include "run-command.h"
> @@ -153,6 +154,12 @@ int fetch_bundle_uri(struct repository *r, const char *uri)
>  	if ((result = unbundle_from_file(r, filename.buf)))
>  		goto cleanup;
>  
> +	git_config_set_multivar_gently("log.excludedecoration",
> +					"refs/bundle/",
> +					"refs/bundle/",
> +					CONFIG_FLAGS_FIXED_VALUE |
> +					CONFIG_FLAGS_MULTI_REPLACE);
> +

I dislike the idea of modifying the user's config as a side effect here.
Since it's a cosmetic issue, can we drop this patch and figure out
better default values for log.excludedecoration?

>  cleanup:
>  	unlink(filename.buf);
>  	strbuf_release(&filename);
> diff --git a/t/t5558-fetch-bundle-uri.sh b/t/t5558-fetch-bundle-uri.sh
> index 919db6f4551..bed4cc3e99c 100755
> --- a/t/t5558-fetch-bundle-uri.sh
> +++ b/t/t5558-fetch-bundle-uri.sh
> @@ -28,7 +28,9 @@ test_expect_success 'fetch file bundle' '
>  	git -C fetch-to fetch --bundle-uri="$(pwd)/fetch-from/B.bundle" &&
>  	git -C fetch-to rev-parse refs/bundles/topic >actual &&
>  	git -C fetch-from rev-parse topic >expect &&
> -	test_cmp expect actual
> +	test_cmp expect actual &&
> +
> +	test_config -C fetch-to log.excludedecoration refs/bundle/
>  '
>  
>  test_expect_success 'fetch file:// bundle' '
> @@ -36,7 +38,9 @@ test_expect_success 'fetch file:// bundle' '
>  	git -C fetch-file fetch --bundle-uri="file://$(pwd)/fetch-from/B.bundle" &&
>  	git -C fetch-file rev-parse refs/bundles/topic >actual &&
>  	git -C fetch-from rev-parse topic >expect &&
> -	test_cmp expect actual
> +	test_cmp expect actual &&
> +
> +	test_config -C fetch-file log.excludedecoration refs/bundle/
>  '
>  
>  #########################################################################
> @@ -62,7 +66,9 @@ test_expect_success 'fetch HTTP bundle' '
>  	git -C fetch-http fetch --bundle-uri="$HTTPD_URL/B.bundle" &&
>  	git -C fetch-http rev-parse refs/bundles/topic >actual &&
>  	git -C fetch-from rev-parse topic >expect &&
> -	test_cmp expect actual
> +	test_cmp expect actual &&
> +
> +	test_config log.excludedecoration refs/bundle/
>  '
>  
>  # Do not add tests here unless they use the HTTP server, as they will
> -- 
> gitgitgadget