- archive_open(+Data, +Mode, -Archive, +Options) is det
- Open the archive in Data and unify Archive with a handle to the
opened archive. Data is either a file name (as accepted by open/4)
or a stream that has been opened with the option
type(binary)
. If Data is an already open stream, the caller is responsible for closing it (but see optionclose_parent(true)
) and must not close the stream until after archive_close/1 is called. Mode is eitherread
orwrite
. Details are controlled by Options. Typically, the optionclose_parent(true)
is used to also close the Data stream if the archive is closed using archive_close/1. For other options when reading, the defaults are typically fine - for writing, a valid format and optional filters must be specified. The optionformat(raw)
must be used to process compressed streams that do not contain explicit entries (e.g., gzip'ed data) unambibuously. Theraw
format creates a pseudo archive holding a single member nameddata
.- close_parent(+Boolean)
- If this option is
true
(defaultfalse
), Data stream is closed when archive_close/1 is called on Archive. If Data is a file name, the default istrue
. - compression(+Compression)
- Synomym for
filter(Compression)
. Deprecated. - filter(+Filter)
- Support the indicated filter. This option may be
used multiple times to support multiple filters. In read mode,
If no filter options are provided,
all
is assumed. In write mode,none
is assumed. Supported values areall
,bzip2
,compress
,gzip
,grzip
,lrzip
,lzip
,lzma
,lzop
,none
,rpm
,uu
andxz
. The valueall
is default for read,none
for write. - format(+Format)
- Support the indicated format. This option may be used
multiple times to support multiple formats in read mode.
In write mode, you must supply a single format. If no format
options are provided,
all
is assumed for read mode. Note thatall
does not includeraw
andmtree
. To open both archive and non-archive files, bothformat(all)
andformat(raw)
and/orformat(mtree)
must be specified. Supported values are:all
,7zip
,ar
,cab
,cpio
,empty
,gnutar
,iso9660
,lha
,mtree
,rar
,raw
,tar
,xar
andzip
. The valueall
is default for read.
Note that the actually supported compression types and formats may vary depending on the version and installation options of the underlying libarchive library. This predicate raises a domain or permission error if the (explicitly) requested format or filter is not supported.
- Errors
- -
domain_error(filter, Filter)
if the requested filter is invalid (e.g.,all
for writing). - -
domain_error(format, Format)
if the requested format type is not supported. - -
permission_error(set, filter, Filter)
if the requested filter is not supported.