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>
To improve usability it is now possible to directly pass paths or match patterns
as arguments to pxar extract to partially restore an archive.
The patterns provided via CLI are appended to the ones read from file by the
--files-from option in order to have priority over those.
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>
By this the pxar integrity test checks for even more attributes such as a e.g.
correctly restored timestamp. See `man rsync` for details.
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
match_exclude_pattern() does not need a '&mut self' reference to the encoder,
move it therefore out of the impl.
Further, this patch contains some naming and formatting cosmetics.
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
dir_count was used to track the number of directory entries to store in the
archive and bail if the maximum is exceeded.
As the number of entries is equally obtained from the list of the filenames to
include, use that one instead.
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
