menu "Archival Utilities"
-config CONFIG_AR
+config FEATURE_SEAMLESS_LZMA
+ bool "Make tar, rpm, modprobe etc understand .lzma data"
+ default n
+ help
+ Make tar, rpm, modprobe etc understand .lzma data.
+
+config FEATURE_SEAMLESS_BZ2
+ bool "Make tar, rpm, modprobe etc understand .bz2 data"
+ default n
+ help
+ Make tar, rpm, modprobe etc understand .bz2 data.
+
+config FEATURE_SEAMLESS_GZ
+ bool "Make tar, rpm, modprobe etc understand .gz data"
+ default n
+ help
+ Make tar, rpm, modprobe etc understand .gz data.
+
+config FEATURE_SEAMLESS_Z
+ bool "Make tar and gunzip understand .Z data"
+ default n
+ help
+ Make tar and gunzip understand .Z data.
+
+config AR
bool "ar"
default n
help
ar is an archival utility program used to create, modify, and
- extract contents from archives. An archive is a single file holding
+ extract contents from archives. An archive is a single file holding
a collection of other files in a structure that makes it possible to
retrieve the original individual files (called archive members).
The original files' contents, mode (permissions), timestamp, owner,
Unless you have a specific application which requires ar, you should
probably say N here.
-config CONFIG_FEATURE_AR_LONG_FILENAMES
- bool " Enable support for long filenames (not need for debs)"
+config FEATURE_AR_LONG_FILENAMES
+ bool "Support for long filenames (not need for debs)"
default n
- depends on CONFIG_AR
+ depends on AR
help
- By default the ar format can only store the first 15 characters of the
- filename, this option removes that limitation.
+ By default the ar format can only store the first 15 characters of
+ the filename, this option removes that limitation.
It supports the GNU ar long filename method which moves multiple long
filenames into a the data section of a new ar entry.
-config CONFIG_BUNZIP2
+config BUNZIP2
bool "bunzip2"
default n
help
bunzip2 is a compression utility using the Burrows-Wheeler block
- sorting text compression algorithm, and Huffman coding. Compression
+ sorting text compression algorithm, and Huffman coding. Compression
is generally considerably better than that achieved by more
conventional LZ77/LZ78-based compressors, and approaches the
- performance of the PPM family of statistical compressors.
-
- The BusyBox bunzip2 applet is limited to de-compression only.
- On an x86 system, this applet adds about 11K.
-
+ performance of the PPM family of statistical compressors.
+
Unless you have a specific application which requires bunzip2, you
should probably say N here.
-config CONFIG_CPIO
+config BZIP2
+ bool "bzip2"
+ default n
+ help
+ bzip2 is a compression utility using the Burrows-Wheeler block
+ sorting text compression algorithm, and Huffman coding. Compression
+ is generally considerably better than that achieved by more
+ conventional LZ77/LZ78-based compressors, and approaches the
+ performance of the PPM family of statistical compressors.
+
+ Unless you have a specific application which requires bzip2, you
+ should probably say N here.
+
+config CPIO
bool "cpio"
default n
help
- cpio is an archival utility program used to create, modify, and extract
- contents from archives.
+ cpio is an archival utility program used to create, modify, and
+ extract contents from archives.
cpio has 110 bytes of overheads for every stored file.
This implementation of cpio can extract cpio archives created in the
- "newc" or "crc" format, it cannot create or modify them.
+ "newc" or "crc" format, it cannot create or modify them.
- Unless you have a specific application which requires cpio, you should
- probably say N here.
+ Unless you have a specific application which requires cpio, you
+ should probably say N here.
+
+config FEATURE_CPIO_O
+ bool "Support for archive creation"
+ default n
+ depends on CPIO
+ help
+ This implementation of cpio can create cpio archives in the "newc"
+ format only.
-config CONFIG_DPKG
+config DPKG
bool "dpkg"
default n
+ select FEATURE_SEAMLESS_GZ
help
- dpkg is a medium-level tool to install, build, remove and manage Debian packages.
-
- This implementation of dpkg has a number of limitations, you should use the
- official dpkg if possible.
+ dpkg is a medium-level tool to install, build, remove and manage
+ Debian packages.
+
+ This implementation of dpkg has a number of limitations,
+ you should use the official dpkg if possible.
-config CONFIG_DPKG_DEB
+config DPKG_DEB
bool "dpkg_deb"
default n
+ select FEATURE_SEAMLESS_GZ
help
- dpkg-deb packs, unpacks and provides information about Debian archives.
-
+ dpkg-deb unpacks and provides information about Debian archives.
+
This implementation of dpkg-deb cannot pack archives.
-
- Unless you have a specific application which requires dpkg-deb, you should
- probably say N here.
-config CONFIG_FEATURE_DPKG_DEB_EXTRACT_ONLY
- bool " extract only (-x)"
+ Unless you have a specific application which requires dpkg-deb,
+ say N here.
+
+config FEATURE_DPKG_DEB_EXTRACT_ONLY
+ bool "Extract only (-x)"
default n
- depends on CONFIG_DPKG_DEB
+ depends on DPKG_DEB
help
- This reduces dpkg-deb to the equivalent of "ar -p <deb> data.tar.gz | tar -zx".
- However it saves space as none of the extra dpkg-deb, ar or tar options are
- needed, they are linked to internally.
+ This reduces dpkg-deb to the equivalent of
+ "ar -p <deb> data.tar.gz | tar -zx". However it saves space as none
+ of the extra dpkg-deb, ar or tar options are needed, they are linked
+ to internally.
-config CONFIG_GUNZIP
+config GUNZIP
bool "gunzip"
default n
help
You can use the `-t' option to test the integrity of
an archive, without decompressing it.
-config CONFIG_FEATURE_GUNZIP_UNCOMPRESS
- bool " Uncompress support"
- default n
- depends on CONFIG_GUNZIP
- help
- Enable if you want gunzip to have the ability to decompress
- archives created by the program compress (not much
- used anymore).
-
-config CONFIG_GZIP
+config GZIP
bool "gzip"
default n
help
gzip is used to compress files.
It's probably the most widely used UNIX compression program.
-config CONFIG_RPM2CPIO
+config RPM2CPIO
bool "rpm2cpio"
default n
help
Converts an RPM file into a CPIO archive.
-config CONFIG_RPM
+config RPM
bool "rpm"
default n
help
- Mini RPM applet - queries and extracts
+ Mini RPM applet - queries and extracts RPM packages.
-config CONFIG_TAR
+config TAR
bool "tar"
default n
help
create compressed archives. It's probably the most widely used
UNIX archive program.
-config CONFIG_FEATURE_TAR_CREATE
- bool " Enable archive creation"
+if TAR
+
+config FEATURE_TAR_CREATE
+ bool "Enable archive creation"
default y
- depends on CONFIG_TAR
+ depends on TAR
help
If you enable this option you'll be able to create
tar archives using the `-c' option.
-config CONFIG_FEATURE_TAR_BZIP2
- bool " Enable -j option to handle .tar.bz2 files"
+config FEATURE_TAR_AUTODETECT
+ bool "Autodetect gz/bz2 compressed tarballs"
default n
- depends on CONFIG_TAR
+ depends on FEATURE_SEAMLESS_Z || FEATURE_SEAMLESS_GZ || FEATURE_SEAMLESS_BZ2 || FEATURE_SEAMLESS_LZMA
help
- If you enable this option you'll be able to extract
- archives compressed with bzip2.
+ With this option tar can automatically detect gzip/bzip2 compressed
+ tarballs. Currently it works only on files (not pipes etc).
-config CONFIG_FEATURE_TAR_FROM
- bool " Enable -X (exclude from) and -T (include from) options)"
+config FEATURE_TAR_FROM
+ bool "Enable -X (exclude from) and -T (include from) options)"
default n
- depends on CONFIG_TAR
+ depends on TAR
help
If you enable this option you'll be able to specify
a list of files to include or exclude from an archive.
-config CONFIG_FEATURE_TAR_GZIP
- bool " Enable -z option"
- default y
- depends on CONFIG_TAR
- help
- If you enable this option tar will be able to call gzip,
- when creating or extracting tar gziped archives.
-
-config CONFIG_FEATURE_TAR_COMPRESS
- bool " Enable -Z option"
- default n
- depends on CONFIG_TAR
- help
- If you enable this option tar will be able to call uncompress,
- when extracting .tar.Z archives.
-
-config CONFIG_FEATURE_TAR_OLDGNU_COMPATABILITY
- bool " Enable support for old tar header format"
+config FEATURE_TAR_OLDGNU_COMPATIBILITY
+ bool "Support for old tar header format"
default N
- depends on CONFIG_TAR
+ depends on TAR
help
This option is required to unpack archives created in
the old GNU format; help to kill this old format by
repacking your ancient archives with the new format.
-config CONFIG_FEATURE_TAR_GNU_EXTENSIONS
- bool " Enable support for some GNU tar extensions"
+config FEATURE_TAR_OLDSUN_COMPATIBILITY
+ bool "Enable untarring of tarballs with checksums produced by buggy Sun tar"
+ default N
+ depends on TAR
+ help
+ This option is required to unpack archives created by some old
+ version of Sun's tar (it was calculating checksum using signed
+ arithmetic). It is said to be fixed in newer Sun tar, but "old"
+ tarballs still exist.
+
+config FEATURE_TAR_GNU_EXTENSIONS
+ bool "Support for GNU tar extensions (long filenames)"
default y
- depends on CONFIG_TAR
+ depends on TAR
help
- With this option busybox supports GNU long filenames and
+ With this option busybox supports GNU long filenames and
linknames.
-config CONFIG_FEATURE_TAR_LONG_OPTIONS
- bool " Enable long options"
+config FEATURE_TAR_LONG_OPTIONS
+ bool "Enable long options"
+ default n
+ depends on TAR && GETOPT_LONG
+ help
+ Enable use of long options, increases size by about 400 Bytes
+
+config FEATURE_TAR_UNAME_GNAME
+ bool "Enable use of user and group names"
default n
- depends on CONFIG_TAR
+ depends on TAR
help
- Enable use of long options, increases size by about 400 Bytes
+ Enables use of user and group names in tar. This affects contents
+ listings (-t) and preserving permissions when unpacking (-p).
+ +200 bytes.
+
+endif #tar
-config CONFIG_UNCOMPRESS
+config UNCOMPRESS
bool "uncompress"
default n
help
uncompress is used to decompress archives created by compress.
Not much used anymore, replaced by gzip/gunzip.
-config CONFIG_UNZIP
- bool "unzip"
+config UNLZMA
+ bool "unlzma"
default n
help
- unzip will list or extract files from a ZIP archive,
- commonly found on DOS/WIN systems. The default behavior
- (with no options) is to extract the archive into the
- current directory. Use the `-d' option to extract to a
- directory of your choice.
+ unlzma is a compression utility using the Lempel-Ziv-Markov chain
+ compression algorithm, and range coding. Compression
+ is generally considerably better than that achieved by the bzip2
+ compressors.
-comment "Common options for cpio and tar"
- depends on CONFIG_CPIO || CONFIG_TAR
+ The BusyBox unlzma applet is limited to de-compression only.
+ On an x86 system, this applet adds about 4K.
-config CONFIG_FEATURE_UNARCHIVE_TAPE
- bool " Enable tape drive support"
- default n
- depends on CONFIG_CPIO || CONFIG_TAR
- help
- I don't think this is needed anymore.
-
-comment "Common options for dpkg and dpkg_deb"
- depends on CONFIG_DPKG || CONFIG_DPKG_DEB
+ Unless you have a specific application which requires unlzma, you
+ should probably say N here.
-config CONFIG_FEATURE_DEB_TAR_GZ
- bool " gzip debian packages (normal)"
- default y if CONFIG_DPKG || CONFIG_DPKG_DEB
- depends on CONFIG_DPKG || CONFIG_DPKG_DEB
+config FEATURE_LZMA_FAST
+ bool "Optimize unlzma for speed"
+ default n
+ depends on UNLZMA
help
- This is the default compression method inside the debian ar file.
-
- If you want compatibility with standard .deb's you should say yes here.
+ This option reduces decompression time by about 33% at the cost of
+ a 2K bigger binary.
-config CONFIG_FEATURE_DEB_TAR_BZ2
- bool " bzip2 debian packages"
+config UNZIP
+ bool "unzip"
default n
- depends on CONFIG_DPKG || CONFIG_DPKG_DEB
help
- This allows dpkg and dpkg-deb to extract deb's that are compressed internally
- with bzip2 instead of gzip.
-
- You only want this if you are creating your own custom debian packages that
- use an internal control.tar.bz2 or data.tar.bz2.
+ unzip will list or extract files from a ZIP archive,
+ commonly found on DOS/WIN systems. The default behavior
+ (with no options) is to extract the archive into the
+ current directory. Use the `-d' option to extract to a
+ directory of your choice.
endmenu
projects / oweals / busybox.git / blobdiff