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2008-11-05Merge branch 'mv/maint-branch-m-symref'Libravatar Junio C Hamano1-1/+1
* mv/maint-branch-m-symref: update-ref --no-deref -d: handle the case when the pointed ref is packed git branch -m: forbid renaming of a symref Fix git update-ref --no-deref -d. rename_ref(): handle the case when the reflog of a ref does not exist Fix git branch -m for symrefs.
2008-11-02Introduce receive.denyDeletesLibravatar Jan Krüger1-0/+12
Occasionally, it may be useful to prevent branches from getting deleted from a centralized repository, particularly when no administrative access to the server is available to undo it via reflog. It also makes receive.denyNonFastForwards more useful if it is used for access control since it prevents force-updating by deleting and re-creating a ref. Signed-off-by: Jan Krüger <jk@jk.gs> Acked-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-10-26receive-pack: fix "borrowing from alternate object store" implementationLibravatar Junio C Hamano1-2/+7
In the alternate_object_database structure, ent->base[] is a buffer the users can use to form pathnames to loose objects, and ent->name is a pointer into that buffer (it points at one beyond ".git/objects/"). If you get a call to add_refs_from_alternate() after somebody used the entry (has_loose_object() has been called, for example), *ent->name would not be NUL, and ent->base[] won't be the path to the object store. This caller is expecting to read the path to the object store in ent->base[]; it needs to NUL terminate the buffer if it wants to. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-09-09push: receiver end advertises refs from alternate repositoriesLibravatar Junio C Hamano1-0/+38
Earlier, when pushing into a repository that borrows from alternate object stores, we followed the longstanding design decision not to trust refs in the alternate repository that houses the object store we are borrowing from. If your public repository is borrowing from Linus's public repository, you pushed into it long time ago, and now when you try to push your updated history that is in sync with more recent history from Linus, you will end up sending not just your own development, but also the changes you acquired through Linus's tree, even though the objects needed for the latter already exists at the receiving end. This is because the receiving end does not advertise that the objects only reachable from the borrowed repository (i.e. Linus's) are already available there. This solves the issue by making the receiving end advertise refs from borrowed repositories. They are not sent with their true names but with a phoney name ".have" to make sure that the old senders will safely ignore them (otherwise, the old senders will misbehave, trying to push matching refs, and mirror push that deletes refs that only exist at the receiving end). Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-09-09receive-pack: make it a builtinLibravatar Junio C Hamano1-0/+520
It is a good thing to do in general, but more importantly, transport routines can only be used by built-ins, which is what I'll be adding next. Signed-off-by: Junio C Hamano <gitster@pobox.com>