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    Revision 816 - (hide annotations) (download)
    Fri Apr 24 18:33:46 2009 UTC (15 years ago) by niro
    File size: 8339 byte(s) 
    -updated to busybox-1.13.4
    1 niro 532 #
    2     # For a description of the syntax of this configuration file,
    3     # see scripts/kbuild/config-language.txt.
    4     #
    5    
    6     menu "Archival Utilities"
    7    
    8 niro 816 config FEATURE_SEAMLESS_LZMA
    9     bool "Make tar, rpm, modprobe etc understand .lzma data"
    10     default n
    11     help
    12     Make tar, rpm, modprobe etc understand .lzma data.
    13    
    14     config FEATURE_SEAMLESS_BZ2
    15     bool "Make tar, rpm, modprobe etc understand .bz2 data"
    16     default n
    17     help
    18     Make tar, rpm, modprobe etc understand .bz2 data.
    19    
    20     config FEATURE_SEAMLESS_GZ
    21     bool "Make tar, rpm, modprobe etc understand .gz data"
    22     default n
    23     help
    24     Make tar, rpm, modprobe etc understand .gz data.
    25    
    26     config FEATURE_SEAMLESS_Z
    27     bool "Make tar and gunzip understand .Z data"
    28     default n
    29     help
    30     Make tar and gunzip understand .Z data.
    31    
    32 niro 532 config AR
    33     bool "ar"
    34     default n
    35     help
    36     ar is an archival utility program used to create, modify, and
    37 niro 816 extract contents from archives. An archive is a single file holding
    38 niro 532 a collection of other files in a structure that makes it possible to
    39     retrieve the original individual files (called archive members).
    40     The original files' contents, mode (permissions), timestamp, owner,
    41     and group are preserved in the archive, and can be restored on
    42     extraction.
    43    
    44     The stored filename is limited to 15 characters. (for more information
    45     see long filename support).
    46     ar has 60 bytes of overheads for every stored file.
    47    
    48     This implementation of ar can extract archives, it cannot create or
    49     modify them.
    50     On an x86 system, the ar applet adds about 1K.
    51    
    52     Unless you have a specific application which requires ar, you should
    53     probably say N here.
    54    
    55     config FEATURE_AR_LONG_FILENAMES
    56 niro 816 bool "Support for long filenames (not need for debs)"
    57 niro 532 default n
    58     depends on AR
    59     help
    60 niro 816 By default the ar format can only store the first 15 characters of
    61     the filename, this option removes that limitation.
    62 niro 532 It supports the GNU ar long filename method which moves multiple long
    63     filenames into a the data section of a new ar entry.
    64    
    65     config BUNZIP2
    66     bool "bunzip2"
    67     default n
    68     help
    69     bunzip2 is a compression utility using the Burrows-Wheeler block
    70 niro 816 sorting text compression algorithm, and Huffman coding. Compression
    71 niro 532 is generally considerably better than that achieved by more
    72     conventional LZ77/LZ78-based compressors, and approaches the
    73     performance of the PPM family of statistical compressors.
    74    
    75     Unless you have a specific application which requires bunzip2, you
    76     should probably say N here.
    77    
    78 niro 816 config BZIP2
    79     bool "bzip2"
    80     default n
    81     help
    82     bzip2 is a compression utility using the Burrows-Wheeler block
    83     sorting text compression algorithm, and Huffman coding. Compression
    84     is generally considerably better than that achieved by more
    85     conventional LZ77/LZ78-based compressors, and approaches the
    86     performance of the PPM family of statistical compressors.
    87    
    88     Unless you have a specific application which requires bzip2, you
    89     should probably say N here.
    90    
    91 niro 532 config CPIO
    92     bool "cpio"
    93     default n
    94     help
    95 niro 816 cpio is an archival utility program used to create, modify, and
    96     extract contents from archives.
    97 niro 532 cpio has 110 bytes of overheads for every stored file.
    98    
    99     This implementation of cpio can extract cpio archives created in the
    100     "newc" or "crc" format, it cannot create or modify them.
    101    
    102 niro 816 Unless you have a specific application which requires cpio, you
    103     should probably say N here.
    104 niro 532
    105 niro 816 config FEATURE_CPIO_O
    106     bool "Support for archive creation"
    107     default n
    108     depends on CPIO
    109     help
    110     This implementation of cpio can create cpio archives in the "newc"
    111     format only.
    112    
    113 niro 532 config DPKG
    114     bool "dpkg"
    115     default n
    116 niro 816 select FEATURE_SEAMLESS_GZ
    117 niro 532 help
    118 niro 816 dpkg is a medium-level tool to install, build, remove and manage
    119     Debian packages.
    120 niro 532
    121 niro 816 This implementation of dpkg has a number of limitations,
    122     you should use the official dpkg if possible.
    123 niro 532
    124     config DPKG_DEB
    125     bool "dpkg_deb"
    126     default n
    127 niro 816 select FEATURE_SEAMLESS_GZ
    128 niro 532 help
    129 niro 816 dpkg-deb unpacks and provides information about Debian archives.
    130 niro 532
    131     This implementation of dpkg-deb cannot pack archives.
    132    
    133 niro 816 Unless you have a specific application which requires dpkg-deb,
    134     say N here.
    135 niro 532
    136     config FEATURE_DPKG_DEB_EXTRACT_ONLY
    137 niro 816 bool "Extract only (-x)"
    138 niro 532 default n
    139     depends on DPKG_DEB
    140     help
    141 niro 816 This reduces dpkg-deb to the equivalent of
    142     "ar -p <deb> data.tar.gz | tar -zx". However it saves space as none
    143     of the extra dpkg-deb, ar or tar options are needed, they are linked
    144     to internally.
    145 niro 532
    146     config GUNZIP
    147     bool "gunzip"
    148     default n
    149     help
    150     gunzip is used to decompress archives created by gzip.
    151     You can use the `-t' option to test the integrity of
    152     an archive, without decompressing it.
    153    
    154     config GZIP
    155     bool "gzip"
    156     default n
    157     help
    158     gzip is used to compress files.
    159     It's probably the most widely used UNIX compression program.
    160    
    161     config RPM2CPIO
    162     bool "rpm2cpio"
    163     default n
    164     help
    165     Converts an RPM file into a CPIO archive.
    166    
    167     config RPM
    168     bool "rpm"
    169     default n
    170     help
    171     Mini RPM applet - queries and extracts RPM packages.
    172    
    173     config TAR
    174     bool "tar"
    175     default n
    176     help
    177     tar is an archiving program. It's commonly used with gzip to
    178     create compressed archives. It's probably the most widely used
    179     UNIX archive program.
    180    
    181 niro 816 if TAR
    182    
    183 niro 532 config FEATURE_TAR_CREATE
    184     bool "Enable archive creation"
    185     default y
    186     depends on TAR
    187     help
    188     If you enable this option you'll be able to create
    189     tar archives using the `-c' option.
    190    
    191 niro 816 config FEATURE_TAR_AUTODETECT
    192     bool "Autodetect gz/bz2 compressed tarballs"
    193 niro 532 default n
    194 niro 816 depends on FEATURE_SEAMLESS_Z || FEATURE_SEAMLESS_GZ || FEATURE_SEAMLESS_BZ2 || FEATURE_SEAMLESS_LZMA
    195 niro 532 help
    196 niro 816 With this option tar can automatically detect gzip/bzip2 compressed
    197     tarballs. Currently it works only on files (not pipes etc).
    198 niro 532
    199     config FEATURE_TAR_FROM
    200     bool "Enable -X (exclude from) and -T (include from) options)"
    201     default n
    202     depends on TAR
    203     help
    204     If you enable this option you'll be able to specify
    205     a list of files to include or exclude from an archive.
    206    
    207     config FEATURE_TAR_OLDGNU_COMPATIBILITY
    208 niro 816 bool "Support for old tar header format"
    209 niro 532 default N
    210     depends on TAR
    211     help
    212     This option is required to unpack archives created in
    213     the old GNU format; help to kill this old format by
    214     repacking your ancient archives with the new format.
    215    
    216 niro 816 config FEATURE_TAR_OLDSUN_COMPATIBILITY
    217     bool "Enable untarring of tarballs with checksums produced by buggy Sun tar"
    218     default N
    219     depends on TAR
    220     help
    221     This option is required to unpack archives created by some old
    222     version of Sun's tar (it was calculating checksum using signed
    223     arithmetic). It is said to be fixed in newer Sun tar, but "old"
    224     tarballs still exist.
    225    
    226 niro 532 config FEATURE_TAR_GNU_EXTENSIONS
    227 niro 816 bool "Support for GNU tar extensions (long filenames)"
    228 niro 532 default y
    229     depends on TAR
    230     help
    231     With this option busybox supports GNU long filenames and
    232     linknames.
    233    
    234     config FEATURE_TAR_LONG_OPTIONS
    235     bool "Enable long options"
    236     default n
    237     depends on TAR && GETOPT_LONG
    238     help
    239 niro 816 Enable use of long options, increases size by about 400 Bytes
    240 niro 532
    241 niro 816 config FEATURE_TAR_UNAME_GNAME
    242     bool "Enable use of user and group names"
    243     default n
    244     depends on TAR
    245     help
    246     Enables use of user and group names in tar. This affects contents
    247     listings (-t) and preserving permissions when unpacking (-p).
    248     +200 bytes.
    249    
    250     endif #tar
    251    
    252 niro 532 config UNCOMPRESS
    253     bool "uncompress"
    254     default n
    255     help
    256     uncompress is used to decompress archives created by compress.
    257     Not much used anymore, replaced by gzip/gunzip.
    258    
    259     config UNLZMA
    260     bool "unlzma"
    261     default n
    262     help
    263     unlzma is a compression utility using the Lempel-Ziv-Markov chain
    264 niro 816 compression algorithm, and range coding. Compression
    265 niro 532 is generally considerably better than that achieved by the bzip2
    266     compressors.
    267    
    268     The BusyBox unlzma applet is limited to de-compression only.
    269     On an x86 system, this applet adds about 4K.
    270    
    271     Unless you have a specific application which requires unlzma, you
    272     should probably say N here.
    273    
    274     config FEATURE_LZMA_FAST
    275 niro 816 bool "Optimize unlzma for speed"
    276 niro 532 default n
    277     depends on UNLZMA
    278     help
    279     This option reduces decompression time by about 33% at the cost of
    280     a 2K bigger binary.
    281    
    282     config UNZIP
    283     bool "unzip"
    284     default n
    285     help
    286     unzip will list or extract files from a ZIP archive,
    287     commonly found on DOS/WIN systems. The default behavior
    288     (with no options) is to extract the archive into the
    289     current directory. Use the `-d' option to extract to a
    290     directory of your choice.
    291    
    292     endmenu