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2025-07-16loose: write loose objects map via their sourcePatrick Steinhardt1-1/+3
When a repository is configured to have a compatibility hash algorithm we keep track of object ID mappings for loose objects via the loose object map. This map simply maps an object ID of the actual hash to the object ID of the compatibility hash. This loose object map is an inherent property of the loose files backend and thus of one specific object source. Refactor the interfaces to reflect this by requiring a `struct odb_source` as input instead of a repository. This prepares for subsequent commits where we will refactor writing of loose objects to work on a `struct odb_source`, as well. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-06-14hash-ll: merge with "hash.h"Patrick Steinhardt1-0/+2
The "hash-ll.h" header was introduced via d1cbe1e6d8 (hash-ll.h: split out of hash.h to remove dependency on repository.h, 2023-04-22) to make explicit the split between hash-related functions that rely on the global `the_repository`, and those that don't. This split is no longer necessary now that we we have removed the reliance on `the_repository`. Merge "hash-ll.h" back into "hash.h". This causes some code units to not include "repository.h" anymore, which requires us to add some forward declarations. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-10-02loose: add a mapping between SHA-1 and SHA-256 for loose objectsbrian m. carlson1-0/+22
As part of the transition plan, we'd like to add a file in the .git directory that maps loose objects between SHA-1 and SHA-256. Let's implement the specification in the transition plan and store this data on a per-repository basis in struct repository. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>