This fixes the case where /tmp resides in one volume, and the build
directory in a different one: by storing the temporary file in the
same directory as the target one, we avoid the case in which os.rename()
would cross file system boundaries.
Reviewed-by: Colin Walters <walters@verbum.org>
By default, when doing a commit, scan all of our loose objects and
build up a (device,inode) -> checksum hash. Then when we're doing a
commit, if we see a file with that (device,inode) pair, we can avoid
checksumming it.
This will allow us to use hard links again for user-mode checkouts,
rather than the hackish link cache. It was pretty silly anyways to
have file objects be stored with just a small metadata header
prepended, but uncompressed.
Either they should be hardlinkable, or compressed (in pack files).
Rather than passing xattr/file_info for all objects, change the API to
assume we're passing the defined object stream for each type. Namely,
for OSTREE_OBJECT_TYPE_FILE, we're now giving the "archive file" data.
This significantly cleans up the code for committing to archive mode
repositories, at the cost of having to (at present) create an
intermediate temporary file when committing to raw repositories.
Avoids indirecting through PLT for internal calls, at the cost that we
can't use LD_PRELOAD to override internal functions (but we never
really want that, use a debugger).
This will be useful for ostbuild; a user can create their own archive
mode repository which transparently inherits objects from the
root-owned one in /ostree.
The ostree-switch-root tool expects three arguments (argc=4): new root, OS
tree target, and init(8) binary to launch inside it. Also, the error message
when not enough arguments are passed now tells about the second argument
being the target OS tree.
Reviewed-by: Colin Walters <walters@verbum.org>
This is a convenient way to have a lookaside directory of hard links,
which can greatly speed up checkouts. In the future we probably want
to push this down into the repository.
Colin Walters
Adrian Perez
Federico Mena Quintero
Carl-Anton Ingmarsson