At the moment, `get_oid()` might call `die()` in some cases. To prevent that from happening, this patches introduces a new flag called `GET_OID_GENTLY` and a new function `get_oid_gently()`, which passes the mentioned flag further to `get_oid_with_context()`. The call graph of `get_oid()` is pretty complex and I hope I covered all the cases where `exit()` might be called. Although I believe this series of patches will not introduce any regression and work as intended, I think that is better to mark it with [RFC]. This patch would be useful for converting `git stash` to C. At the moment, `git stash` spawns a child process to avoid `get_oid()` to die. If this series turns out to be good enough to be accepted, do I need to wait until it gets merged in `master` to use it in the other project mentioned before? Thanks, Paul Paul-Sebastian Ungureanu (6): sha1-name: Add `GET_OID_GENTLY` flag tree-walk: Add three new gentle helpers refs.c: Teach `read_ref_at()` to accept `GET_OID_GENTLY` flag sha1-name: Teach `get_oid_basic()` to be gentle sha1-name: Teach `get_oid_with_context[_1]()` to be gentle sha1-name: Add gentle alternative for `get_oid()` cache.h | 2 + refs.c | 2 + sha1-name.c | 127 +++++++++++++++++++++++++++++++++++++++++----------- tree-walk.c | 108 +++++++++++++++++++++++++++++++++++++------- tree-walk.h | 3 +- 5 files changed, 199 insertions(+), 43 deletions(-) -- 2.18.0.rc2.184.ga79db55c2.dirty
