source: drbl_ui/backup/test_busybox/busybox-1.7.2/archival/Config.in @ 144

Last change on this file since 144 was 20, checked in by chris, 17 years ago
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[20]1#
2# For a description of the syntax of this configuration file,
3# see scripts/kbuild/config-language.txt.
4#
5
6menu "Archival Utilities"
7
8config AR
9  bool "ar"
10  default n
11  help
12    ar is an archival utility program used to create, modify, and
13    extract contents from archives.  An archive is a single file holding
14    a collection of other files in a structure that makes it possible to
15    retrieve the original individual files (called archive members).
16    The original files' contents, mode (permissions), timestamp, owner,
17    and group are preserved in the archive, and can be restored on
18    extraction.
19
20    The stored filename is limited to 15 characters. (for more information
21    see long filename support).
22    ar has 60 bytes of overheads for every stored file.
23
24    This implementation of ar can extract archives, it cannot create or
25    modify them.
26    On an x86 system, the ar applet adds about 1K.
27
28    Unless you have a specific application which requires ar, you should
29    probably say N here.
30
31config FEATURE_AR_LONG_FILENAMES
32  bool "Enable support for long filenames (not need for debs)"
33  default n
34  depends on AR
35  help
36    By default the ar format can only store the first 15 characters of the
37    filename, this option removes that limitation.
38    It supports the GNU ar long filename method which moves multiple long
39    filenames into a the data section of a new ar entry.
40
41config BUNZIP2
42  bool "bunzip2"
43  default n
44  help
45    bunzip2 is a compression utility using the Burrows-Wheeler block
46    sorting text compression algorithm, and Huffman coding.  Compression
47    is generally considerably better than that achieved by more
48    conventional LZ77/LZ78-based compressors, and approaches the
49    performance of the PPM family of statistical compressors.
50
51    The BusyBox bunzip2 applet is limited to de-compression only.
52    On an x86 system, this applet adds about 11K.
53
54    Unless you have a specific application which requires bunzip2, you
55    should probably say N here.
56
57config CPIO
58  bool "cpio"
59  default n
60  help
61    cpio is an archival utility program used to create, modify, and extract
62    contents from archives.
63    cpio has 110 bytes of overheads for every stored file.
64
65    This implementation of cpio can extract cpio archives created in the
66    "newc" or "crc" format, it cannot create or modify them.
67
68    Unless you have a specific application which requires cpio, you should
69    probably say N here.
70
71config DPKG
72  bool "dpkg"
73  default n
74  help
75    dpkg is a medium-level tool to install, build, remove and manage Debian packages.
76
77    This implementation of dpkg has a number of limitations, you should use the
78    official dpkg if possible.
79
80config DPKG_DEB
81  bool "dpkg_deb"
82  default n
83  help
84    dpkg-deb packs, unpacks and provides information about Debian archives.
85
86    This implementation of dpkg-deb cannot pack archives.
87
88    Unless you have a specific application which requires dpkg-deb, you should
89    probably say N here.
90
91config FEATURE_DPKG_DEB_EXTRACT_ONLY
92  bool "extract only (-x)"
93  default n
94  depends on DPKG_DEB
95  help
96    This reduces dpkg-deb to the equivalent of "ar -p <deb> data.tar.gz | tar -zx".
97    However it saves space as none of the extra dpkg-deb, ar or tar options are
98    needed, they are linked to internally.
99
100config GUNZIP
101  bool "gunzip"
102  default n
103  help
104    gunzip is used to decompress archives created by gzip.
105    You can use the `-t' option to test the integrity of
106    an archive, without decompressing it.
107
108config FEATURE_GUNZIP_UNCOMPRESS
109  bool "Uncompress support"
110  default n
111  depends on GUNZIP
112  help
113    Enable if you want gunzip to have the ability to decompress
114    archives created by the program compress (not much
115    used anymore).
116
117config GZIP
118  bool "gzip"
119  default n
120  help
121    gzip is used to compress files.
122    It's probably the most widely used UNIX compression program.
123
124config RPM2CPIO
125  bool "rpm2cpio"
126  default n
127  help
128    Converts an RPM file into a CPIO archive.
129
130config RPM
131  bool "rpm"
132  default n
133  help
134    Mini RPM applet - queries and extracts RPM packages.
135
136config FEATURE_RPM_BZ2
137  bool "Enable handling of rpms with bzip2-compressed data inside"
138  default n
139  depends on RPM
140  help
141    Enable handling of rpms with bzip2-compressed data inside.
142
143config TAR
144  bool "tar"
145  default n
146  help
147    tar is an archiving program. It's commonly used with gzip to
148    create compressed archives. It's probably the most widely used
149    UNIX archive program.
150
151config FEATURE_TAR_CREATE
152  bool "Enable archive creation"
153  default y
154  depends on TAR
155  help
156    If you enable this option you'll be able to create
157    tar archives using the `-c' option.
158
159config FEATURE_TAR_BZIP2
160  bool "Enable -j option to handle .tar.bz2 files"
161  default n
162  depends on TAR
163  help
164    If you enable this option you'll be able to extract
165    archives compressed with bzip2.
166
167config FEATURE_TAR_LZMA
168  bool "Enable -a option to handle .tar.lzma files"
169  default n
170  depends on TAR
171  help
172    If you enable this option you'll be able to extract
173    archives compressed with lzma.
174
175config FEATURE_TAR_FROM
176  bool "Enable -X (exclude from) and -T (include from) options)"
177  default n
178  depends on TAR
179  help
180    If you enable this option you'll be able to specify
181    a list of files to include or exclude from an archive.
182
183config FEATURE_TAR_GZIP
184  bool "Enable -z option"
185  default y
186  depends on TAR
187  help
188    If you enable this option tar will be able to call gzip,
189    when creating or extracting tar gziped archives.
190
191config FEATURE_TAR_COMPRESS
192  bool "Enable -Z option"
193  default n
194  depends on TAR
195  help
196    If you enable this option tar will be able to call uncompress,
197    when extracting .tar.Z archives.
198
199config FEATURE_TAR_OLDGNU_COMPATIBILITY
200  bool "Enable support for old tar header format"
201  default N
202  depends on TAR
203  help
204    This option is required to unpack archives created in
205    the old GNU format; help to kill this old format by
206    repacking your ancient archives with the new format.
207
208config FEATURE_TAR_OLDSUN_COMPATIBILITY
209  bool "Enable untarring of tarballs with checksums produced by buggy Sun tar"
210  default N
211  depends on TAR
212  help
213    This option is required to unpack archives created by some old
214    version of Sun's tar (it was calculating checksum using signed arithmetic).
215    It is said to be fixed in newer Sun tar, but "old" tarballs still exist.
216
217config FEATURE_TAR_GNU_EXTENSIONS
218  bool "Enable support for some GNU tar extensions"
219  default y
220  depends on TAR
221  help
222    With this option busybox supports GNU long filenames and
223    linknames.
224
225config FEATURE_TAR_LONG_OPTIONS
226  bool "Enable long options"
227  default n
228  depends on TAR && GETOPT_LONG
229  help
230    Enable use of long options, increases size by about 400 Bytes
231
232config UNCOMPRESS
233  bool "uncompress"
234  default n
235  help
236    uncompress is used to decompress archives created by compress.
237    Not much used anymore, replaced by gzip/gunzip.
238
239config UNLZMA
240  bool "unlzma"
241  default n
242  help
243    unlzma is a compression utility using the Lempel-Ziv-Markov chain
244    compression algorithm, and range coding.  Compression
245    is generally considerably better than that achieved by the bzip2
246    compressors.
247
248    The BusyBox unlzma applet is limited to de-compression only.
249    On an x86 system, this applet adds about 4K.
250
251    Unless you have a specific application which requires unlzma, you
252    should probably say N here.
253
254config FEATURE_LZMA_FAST
255  bool "Optimze unlzma for speed"
256  default n
257  depends on UNLZMA
258  help
259    This option reduces decompression time by about 33% at the cost of
260    a 2K bigger binary.
261
262config UNZIP
263  bool "unzip"
264  default n
265  help
266    unzip will list or extract files from a ZIP archive,
267    commonly found on DOS/WIN systems. The default behavior
268    (with no options) is to extract the archive into the
269    current directory. Use the `-d' option to extract to a
270    directory of your choice.
271
272comment "Common options for cpio and tar"
273  depends on CPIO || TAR
274
275config FEATURE_UNARCHIVE_TAPE
276  bool "Enable tape drive support"
277  default n
278  depends on CPIO || TAR
279  help
280    I don't think this is needed anymore.
281
282comment "Common options for dpkg and dpkg_deb"
283  depends on DPKG || DPKG_DEB
284
285config FEATURE_DEB_TAR_GZ
286  bool "gzip debian packages (normal)"
287  default y if DPKG || DPKG_DEB
288  depends on DPKG || DPKG_DEB
289  help
290    This is the default compression method inside the debian ar file.
291
292    If you want compatibility with standard .deb's you should say yes here.
293
294config FEATURE_DEB_TAR_BZ2
295  bool "bzip2 debian packages"
296  default n
297  depends on DPKG || DPKG_DEB
298  help
299    This allows dpkg and dpkg-deb to extract deb's that are compressed internally
300    with bzip2 instead of gzip.
301
302    You only want this if you are creating your own custom debian packages that
303    use an internal control.tar.bz2 or data.tar.bz2.
304
305config FEATURE_DEB_TAR_LZMA
306  bool "lzma debian packages"
307  default n
308  depends on DPKG || DPKG_DEB
309  help
310    This allows dpkg and dpkg-deb to extract deb's that are compressed
311    internally with lzma instead of gzip.
312
313    You only want this if you are creating your own custom debian
314    packages that use an internal control.tar.lzma or data.tar.lzma.
315
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