... and use std::mem::MaybeUninit or proxmox::tools::vec::uninitialized() instead.
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
By taking ownership it is easier to move the decoder into another struct,
e.g. into a session context in fuse.
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
This adds the basic code in order to create a fuse session and mount an archive.
It adds libfuse3-3 as runtime dependency and libfuse3-dev as build dependency.
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
The flag CA_FORMAT_SHA512_256 is used to switch between sha512 and sha256 to
calculate digest in casync.
As we use sha256, we can get rid of this flag for now.
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
The original name PxarExcludePattern makes no sense anymore as the patterns are
also used to match filenames during restore of the archive.
Therefore, exclude_pattern.rs is moved to match_pattern.rs and PxarExcludePattern
rename to MatchPattern.
Further, since it makes more sense the MatchTypes are now declared as None,
Positive, Negative, PartialPositive or PartialNegative, as this makes more sense
and seems more readable.
Positive matches are those without '!' prefix, Negatives with '!' prefix.
This makes also the filename matching in the encoder/decoder more intuitive and
the logic was adapted accordingly.
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
Partial extraction of an archive with a glob pattern, e.g. '**/*.conf' lead to
the unexpected behaviour of restoring all partially matched directories (in this
example all of them).
This patch fixes this unexpected behaviour by only restoring those directories
were the directory or one of its sub-items fully matched the pattern and should
therefore be restored.
To achive this behavoiur, directory metadata is pushed onto a stack and restored
on demand.
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
In order to restore only directories when some of their content fully matched
a match pattern on partial restores, these directories and their metadata are
pushed onto this buffer and only restored successivley on demand.
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
This structure contains all the attributes allowing to easily store those within
a e.g. dir buffer.
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
By borrowing these objects we preserve the functionality but make sure
that ownership doesn't change, avoiding problems when contained within other
structs such as e.g. a buffer storing these attributes.
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
By default, restoring an archive will fail if files with the same filename
already exist in the target directory.
By setting the allow_existing_dirs flag, the restore will not fail if an
existing directory is encountered.
The metadata (permissions, acls, ...) of the existing directory will be set
to the ones from the archive.
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
Allows to partially restore an archive by passing match patterns to the restore
function.
The whole restore is performed in sequential, therefore the whole archive has to
be read.
By wrapping the RawFd into an Option it can be controlled if the corresponding
part is restored (in case of Some(fd)) or if the Reader reads over it
without restore (in case of None).
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
