[PATCH 06/24] fetch: add 'refs/bundle/' to log.excludeDecoration

["Derrick Stolee via GitGitGadget" <gitgitgadget@gmail.com>]

From: Derrick Stolee <derrickstolee@github.com>

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 <derrickstolee@github.com>
---
 Documentation/fetch-options.txt | 3 ++-
 bundle-uri.c                    | 7 +++++++
 2 files changed, 9 insertions(+), 1 deletion(-)

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 08de7257c74..0692a62071a 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"
@@ -148,6 +149,12 @@ 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);
+
 cleanup:
 	unlink(filename.buf);
 	strbuf_release(&filename);
-- 
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