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clone: factor out checking for an alternate path

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In a later patch we want to determine if a path is suitable as an
alternate from other commands than builtin/clone. Move the checking
functionality of `add_one_reference` to `compute_alternate_path` that is
defined in cache.h.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Stefan Beller
2016-08-15 14:53:24 -07:00
committed by Junio C Hamano
parent 5f50f33e87
commit 9eeea7d2bc
3 changed files with 86 additions and 34 deletions
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1
cache.h
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@ -1342,6 +1342,7 @@ extern struct alternate_object_database {
} *alt_odb_list;
extern void prepare_alt_odb(void);
extern void read_info_alternates(const char * relative_base, int depth);
extern char *compute_alternate_path(const char *path, struct strbuf *err);
extern void add_to_alternates_file(const char *reference);
typedef int alt_odb_fn(struct alternate_object_database *, void *);
extern int foreach_alt_odb(alt_odb_fn, void*);