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bundle-uri: download bundles from an advertised list

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The logic in fetch_bundle_uri() is useful for the --bundle-uri option of
'git clone', but is not helpful when the clone operation discovers a
list of URIs from the bundle-uri protocol v2 command. To actually
download and unbundle the advertised bundles, we need a different
mechanism.

Create the new fetch_bundle_list() method which is very similar to
fetch_bundle_uri() except that it relies on download_bundle_list()
instead of fetch_bundle_uri_internal(). The download_bundle_list()
method will recursively call fetch_bundle_uri_internal() if any of the
advertised URIs serve a bundle list instead of a bundle. This will also
follow the bundle.list.mode setting from the input list: "any" will
download only one such URI while "all" will download data from all of
the URIs.

In an identical way to fetch_bundle_uri(), the bundles are unbundled
after all of the bundle lists have been expanded and all necessary URIs.

Signed-off-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Derrick Stolee
2022-12-22 15:14:16 +00:00
committed by Junio C Hamano
parent ebc3947955
commit 12b0a14b9e
2 changed files with 35 additions and 0 deletions
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14
bundle-uri.h
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@ -107,6 +107,20 @@ int bundle_uri_parse_config_format(const char *uri,
*/
int fetch_bundle_uri(struct repository *r, const char *uri);
/**
* Given a bundle list that was already advertised (likely by the
* bundle-uri protocol v2 verb) at the given uri, fetch and unbundle the
* bundles according to the bundle strategy of that list.
*
* It is expected that the given 'list' is initialized, including its
* 'baseURI' value.
*
* Returns non-zero if there was an error trying to download the list
* or any of its advertised bundles.
*/
int fetch_bundle_list(struct repository *r,
struct bundle_list *list);
/**
* API for serve.c.
*/