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Merge branch 'sb/submodule-clone-rr'

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"git clone --resurse-submodules --reference $path $URL" is a way to
reduce network transfer cost by borrowing objects in an existing
$path repository when cloning the superproject from $URL; it
learned to also peek into $path for presense of corresponding
repositories of submodules and borrow objects from there when able.

* sb/submodule-clone-rr:
  clone: recursive and reference option triggers submodule alternates
  clone: implement optional references
  clone: clarify option_reference as required
  clone: factor out checking for an alternate path
  submodule--helper update-clone: allow multiple references
  submodule--helper module-clone: allow multiple references
  t7408: merge short tests, factor out testing method
  t7408: modernize style
This commit is contained in:
Junio C Hamano
2016-09-08 21:49:50 -07:00
parent 00d27937bf 31224cbdc7
commit 02c6c14d6c
8 changed files with 369 additions and 111 deletions
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1
cache.h
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@ -1344,6 +1344,7 @@ 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*);