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read_packed_refs(): do more of the work of reading packed refs

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Teach `read_packed_refs()` to also

* Allocate and initialize the new `packed_ref_cache`
* Open and close the `packed-refs` file
* Update the `validity` field of the new object

This decreases the coupling between `packed_refs_cache` and
`files_ref_store` by a little bit.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Michael Haggerty
2017-05-22 16:17:50 +02:00
committed by Junio C Hamano
parent 28ed9830b1
commit 099a912a27
2 changed files with 25 additions and 16 deletions
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3
refs/ref-cache.h
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@ -194,7 +194,8 @@ struct ref_entry *create_ref_entry(const char *refname,
* function called to fill in incomplete directories in the
* `ref_cache` when they are accessed. If it is NULL, then the whole
* `ref_cache` must be filled (including clearing its directories'
* `REF_INCOMPLETE` bits) before it is used.
* `REF_INCOMPLETE` bits) before it is used, and `refs` can be NULL,
* too.
*/
struct ref_cache *create_ref_cache(struct ref_store *refs,
fill_ref_dir_fn *fill_ref_dir);