Gitiles
Code Review Sign In
gerrit.nordix.org / codeaurora / busybox / a1bccc0ba82cc2eef117bb90cd33867df35ad33a / . / archival / Config.in
blob: e3f6239f21cebee9b39be56ba80ee4d9f564b68a [file] [log] [blame]
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]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 CONFIG_AR
9 bool "ar"
10 default n
11 help
Eric Andersen53601822002-12-05 21:12:42 +0000[diff] [blame]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
Glenn L McGrath0337c462002-12-06 22:40:54 +0000[diff] [blame]18 extraction.
Eric Andersen6d3c7e72003-08-22 21:15:07 +0000[diff] [blame]19
Glenn L McGrath0337c462002-12-06 22:40:54 +0000[diff] [blame]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.
Eric Andersen6d3c7e72003-08-22 21:15:07 +0000[diff] [blame]26 On an x86 system, the ar applet adds about 1K.
Eric Andersen53601822002-12-05 21:12:42 +0000[diff] [blame]27
28 Unless you have a specific application which requires ar, you should
29 probably say N here.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]30
31config CONFIG_FEATURE_AR_LONG_FILENAMES
32 bool " Enable support for long filenames (not need for debs)"
33 default n
34 depends on CONFIG_AR
35 help
Glenn L McGrath0337c462002-12-06 22:40:54 +0000[diff] [blame]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.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]40
41config CONFIG_BUNZIP2
42 bool "bunzip2"
43 default n
44 help
Eric Andersen88c916b2003-10-22 09:58:56 +0000[diff] [blame]45 bunzip2 is a compression utility using the Burrows-Wheeler block
Eric Andersen53601822002-12-05 21:12:42 +0000[diff] [blame]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
Eric Andersenc7bda1c2004-03-15 08:29:22 +0000[diff] [blame]49 performance of the PPM family of statistical compressors.
Tim Rikerc1ef7bd2006-01-25 00:08:53 +0000[diff] [blame]50
Glenn L McGrath0337c462002-12-06 22:40:54 +0000[diff] [blame]51 The BusyBox bunzip2 applet is limited to de-compression only.
Eric Andersen6d3c7e72003-08-22 21:15:07 +0000[diff] [blame]52 On an x86 system, this applet adds about 11K.
Tim Rikerc1ef7bd2006-01-25 00:08:53 +0000[diff] [blame]53
Eric Andersen53601822002-12-05 21:12:42 +0000[diff] [blame]54 Unless you have a specific application which requires bunzip2, you
55 should probably say N here.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]56
57config CONFIG_CPIO
58 bool "cpio"
59 default n
60 help
Glenn L McGrath0337c462002-12-06 22:40:54 +0000[diff] [blame]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
Eric Andersenc7bda1c2004-03-15 08:29:22 +0000[diff] [blame]66 "newc" or "crc" format, it cannot create or modify them.
Glenn L McGrath0337c462002-12-06 22:40:54 +0000[diff] [blame]67
68 Unless you have a specific application which requires cpio, you should
69 probably say N here.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]70
71config CONFIG_DPKG
72 bool "dpkg"
73 default n
74 help
Glenn L McGrath0337c462002-12-06 22:40:54 +0000[diff] [blame]75 dpkg is a medium-level tool to install, build, remove and manage Debian packages.
Tim Rikerc1ef7bd2006-01-25 00:08:53 +0000[diff] [blame]76
Glenn L McGrath0337c462002-12-06 22:40:54 +0000[diff] [blame]77 This implementation of dpkg has a number of limitations, you should use the
78 official dpkg if possible.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]79
80config CONFIG_DPKG_DEB
81 bool "dpkg_deb"
82 default n
83 help
Glenn L McGrath0337c462002-12-06 22:40:54 +0000[diff] [blame]84 dpkg-deb packs, unpacks and provides information about Debian archives.
Tim Rikerc1ef7bd2006-01-25 00:08:53 +0000[diff] [blame]85
Glenn L McGrath0337c462002-12-06 22:40:54 +0000[diff] [blame]86 This implementation of dpkg-deb cannot pack archives.
Tim Rikerc1ef7bd2006-01-25 00:08:53 +0000[diff] [blame]87
Glenn L McGrath0337c462002-12-06 22:40:54 +0000[diff] [blame]88 Unless you have a specific application which requires dpkg-deb, you should
89 probably say N here.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]90
91config CONFIG_FEATURE_DPKG_DEB_EXTRACT_ONLY
92 bool " extract only (-x)"
93 default n
94 depends on CONFIG_DPKG_DEB
95 help
Eric Andersen88c916b2003-10-22 09:58:56 +0000[diff] [blame]96 This reduces dpkg-deb to the equivalent of "ar -p <deb> data.tar.gz | tar -zx".
Eric Andersenc7bda1c2004-03-15 08:29:22 +0000[diff] [blame]97 However it saves space as none of the extra dpkg-deb, ar or tar options are
Glenn L McGrath0337c462002-12-06 22:40:54 +0000[diff] [blame]98 needed, they are linked to internally.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]99
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]100config CONFIG_GUNZIP
101 bool "gunzip"
102 default n
103 help
Eric Andersene5642112003-07-14 19:37:08 +0000[diff] [blame]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.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]107
108config CONFIG_FEATURE_GUNZIP_UNCOMPRESS
109 bool " Uncompress support"
110 default n
111 depends on CONFIG_GUNZIP
112 help
Eric Andersen88c916b2003-10-22 09:58:56 +0000[diff] [blame]113 Enable if you want gunzip to have the ability to decompress
Eric Andersene5642112003-07-14 19:37:08 +0000[diff] [blame]114 archives created by the program compress (not much
115 used anymore).
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]116
117config CONFIG_GZIP
118 bool "gzip"
119 default n
120 help
Eric Andersene5642112003-07-14 19:37:08 +0000[diff] [blame]121 gzip is used to compress files.
Eric Andersen88c916b2003-10-22 09:58:56 +0000[diff] [blame]122 It's probably the most widely used UNIX compression program.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]123
124config CONFIG_RPM2CPIO
125 bool "rpm2cpio"
126 default n
127 help
Glenn L McGrathb72a7352002-12-10 00:17:22 +0000[diff] [blame]128 Converts an RPM file into a CPIO archive.
129
130config CONFIG_RPM
131 bool "rpm"
132 default n
133 help
Eric Andersen88c916b2003-10-22 09:58:56 +0000[diff] [blame]134 Mini RPM applet - queries and extracts
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]135
136config CONFIG_TAR
137 bool "tar"
138 default n
139 help
Eric Andersene5642112003-07-14 19:37:08 +0000[diff] [blame]140 tar is an archiving program. It's commonly used with gzip to
Eric Andersen88c916b2003-10-22 09:58:56 +0000[diff] [blame]141 create compressed archives. It's probably the most widely used
Eric Andersene5642112003-07-14 19:37:08 +0000[diff] [blame]142 UNIX archive program.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]143
144config CONFIG_FEATURE_TAR_CREATE
145 bool " Enable archive creation"
146 default y
147 depends on CONFIG_TAR
148 help
Eric Andersene5642112003-07-14 19:37:08 +0000[diff] [blame]149 If you enable this option you'll be able to create
150 tar archives using the `-c' option.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]151
152config CONFIG_FEATURE_TAR_BZIP2
153 bool " Enable -j option to handle .tar.bz2 files"
154 default n
155 depends on CONFIG_TAR
156 help
Eric Andersene5642112003-07-14 19:37:08 +0000[diff] [blame]157 If you enable this option you'll be able to extract
158 archives compressed with bzip2.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]159
Rob Landleyc1d69902006-01-20 18:28:50 +0000[diff] [blame]160config CONFIG_FEATURE_TAR_LZMA
161 bool " Enable -a option to handle .tar.lzma files"
162 default n
163 depends on CONFIG_TAR
164 help
165 If you enable this option you'll be able to extract
166 archives compressed with lzma.
167
Glenn L McGrathce91c8a2003-12-26 14:01:37 +0000[diff] [blame]168config CONFIG_FEATURE_TAR_FROM
169 bool " Enable -X (exclude from) and -T (include from) options)"
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]170 default n
171 depends on CONFIG_TAR
172 help
Eric Andersene5642112003-07-14 19:37:08 +0000[diff] [blame]173 If you enable this option you'll be able to specify
Glenn L McGrathce91c8a2003-12-26 14:01:37 +0000[diff] [blame]174 a list of files to include or exclude from an archive.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]175
176config CONFIG_FEATURE_TAR_GZIP
177 bool " Enable -z option"
178 default y
179 depends on CONFIG_TAR
180 help
Eric Andersene5642112003-07-14 19:37:08 +0000[diff] [blame]181 If you enable this option tar will be able to call gzip,
182 when creating or extracting tar gziped archives.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]183
Glenn L McGrath56f16b42003-11-18 21:37:52 +0000[diff] [blame]184config CONFIG_FEATURE_TAR_COMPRESS
185 bool " Enable -Z option"
186 default n
187 depends on CONFIG_TAR
188 help
189 If you enable this option tar will be able to call uncompress,
190 when extracting .tar.Z archives.
191
Bernhard Reutner-Fischera1bccc02006-04-02 20:17:55 +0000[diff] [blame^]192config CONFIG_FEATURE_TAR_OLDGNU_COMPATIBILITY
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]193 bool " Enable support for old tar header format"
Glenn L McGrath21110a02003-01-28 01:45:48 +0000[diff] [blame]194 default N
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]195 depends on CONFIG_TAR
196 help
Eric Andersen88c916b2003-10-22 09:58:56 +0000[diff] [blame]197 This option is required to unpack archives created in
198 the old GNU format; help to kill this old format by
Glenn L McGrath21110a02003-01-28 01:45:48 +0000[diff] [blame]199 repacking your ancient archives with the new format.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]200
Glenn L McGrath21110a02003-01-28 01:45:48 +0000[diff] [blame]201config CONFIG_FEATURE_TAR_GNU_EXTENSIONS
202 bool " Enable support for some GNU tar extensions"
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]203 default y
204 depends on CONFIG_TAR
205 help
Eric Andersenc7bda1c2004-03-15 08:29:22 +0000[diff] [blame]206 With this option busybox supports GNU long filenames and
Eric Andersene5642112003-07-14 19:37:08 +0000[diff] [blame]207 linknames.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]208
Glenn L McGrathce91c8a2003-12-26 14:01:37 +0000[diff] [blame]209config CONFIG_FEATURE_TAR_LONG_OPTIONS
210 bool " Enable long options"
211 default n
212 depends on CONFIG_TAR
213 help
214 Enable use of long options, increases size by about 400 Bytes
215
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]216config CONFIG_UNCOMPRESS
217 bool "uncompress"
218 default n
219 help
Eric Andersene5642112003-07-14 19:37:08 +0000[diff] [blame]220 uncompress is used to decompress archives created by compress.
221 Not much used anymore, replaced by gzip/gunzip.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]222
Rob Landleyc1d69902006-01-20 18:28:50 +0000[diff] [blame]223config CONFIG_UNLZMA
224 bool "unlzma"
225 default n
226 help
227 unlzma is a compression utility using the Lempel-Ziv-Markov chain
228 compression algorithm, and range coding. Compression
229 is generally considerably better than that achieved by the bzip2
230 compressors.
Tim Rikerc1ef7bd2006-01-25 00:08:53 +0000[diff] [blame]231
Rob Landleyc1d69902006-01-20 18:28:50 +0000[diff] [blame]232 The BusyBox unlzma applet is limited to de-compression only.
233 On an x86 system, this applet adds about 4K.
Tim Rikerc1ef7bd2006-01-25 00:08:53 +0000[diff] [blame]234
Rob Landleyc1d69902006-01-20 18:28:50 +0000[diff] [blame]235 Unless you have a specific application which requires unlzma, you
236 should probably say N here.
237
238config CONFIG_FEATURE_LZMA_FAST
239 bool " Optimze unlzma for speed"
240 default n
241 depends on CONFIG_UNLZMA
242 help
243 This option reduce decompression time by about 33% at the cost of
244 a 2K bigger binary.
245
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]246config CONFIG_UNZIP
247 bool "unzip"
248 default n
249 help
Eric Andersene5642112003-07-14 19:37:08 +0000[diff] [blame]250 unzip will list or extract files from a ZIP archive,
251 commonly found on DOS/WIN systems. The default behavior
252 (with no options) is to extract the archive into the
253 current directory. Use the `-d' option to extract to a
254 directory of your choice.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]255
Glenn L McGrath6530f0d2003-10-29 04:46:30 +0000[diff] [blame]256comment "Common options for cpio and tar"
257 depends on CONFIG_CPIO || CONFIG_TAR
258
259config CONFIG_FEATURE_UNARCHIVE_TAPE
260 bool " Enable tape drive support"
261 default n
262 depends on CONFIG_CPIO || CONFIG_TAR
263 help
264 I don't think this is needed anymore.
265
Glenn L McGrathb03be7f2004-01-17 03:24:05 +0000[diff] [blame]266comment "Common options for dpkg and dpkg_deb"
267 depends on CONFIG_DPKG || CONFIG_DPKG_DEB
268
269config CONFIG_FEATURE_DEB_TAR_GZ
270 bool " gzip debian packages (normal)"
271 default y if CONFIG_DPKG || CONFIG_DPKG_DEB
272 depends on CONFIG_DPKG || CONFIG_DPKG_DEB
273 help
274 This is the default compression method inside the debian ar file.
Tim Rikerc1ef7bd2006-01-25 00:08:53 +0000[diff] [blame]275
Glenn L McGrathb03be7f2004-01-17 03:24:05 +0000[diff] [blame]276 If you want compatibility with standard .deb's you should say yes here.
277
278config CONFIG_FEATURE_DEB_TAR_BZ2
279 bool " bzip2 debian packages"
280 default n
281 depends on CONFIG_DPKG || CONFIG_DPKG_DEB
282 help
283 This allows dpkg and dpkg-deb to extract deb's that are compressed internally
284 with bzip2 instead of gzip.
Tim Rikerc1ef7bd2006-01-25 00:08:53 +0000[diff] [blame]285
Glenn L McGrathb03be7f2004-01-17 03:24:05 +0000[diff] [blame]286 You only want this if you are creating your own custom debian packages that
287 use an internal control.tar.bz2 or data.tar.bz2.
288
Rob Landleyc1d69902006-01-20 18:28:50 +0000[diff] [blame]289config CONFIG_FEATURE_DEB_TAR_LZMA
290 bool " lzma debian packages"
291 default n
292 depends on CONFIG_DPKG || CONFIG_DPKG_DEB
293 help
294 This allows dpkg and dpkg-deb to extract deb's that are compressed
295 internally with lzma instead of gzip.
Tim Rikerc1ef7bd2006-01-25 00:08:53 +0000[diff] [blame]296
Rob Landleyc1d69902006-01-20 18:28:50 +0000[diff] [blame]297 You only want this if you are creating your own custom debian
298 packages that use an internal control.tar.lzma or data.tar.lzma.
299
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]300endmenu