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rev-parse: add --show-superproject-working-tree

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In some situations it is useful to know if the given repository
is a submodule of another repository.

Add the flag --show-superproject-working-tree to git-rev-parse
to make it easy to find out if there is a superproject. When no
superproject exists, the output will be empty.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Stefan Beller
2017-03-08 15:07:42 -08:00
committed by Junio C Hamano
parent e0688e9b28
commit bf0231c661
5 changed files with 117 additions and 0 deletions
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8
submodule.h
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@ -93,4 +93,12 @@ extern void prepare_submodule_repo_env(struct argv_array *out);
extern void absorb_git_dir_into_superproject(const char *prefix,
const char *path,
unsigned flags);
/*
* Return the absolute path of the working tree of the superproject, which this
* project is a submodule of. If this repository is not a submodule of
* another repository, return NULL.
*/
extern const char *get_superproject_working_tree(void);
#endif