busybox: Ensure that diff is available for ipkg upgrade requirements
[openwrt/svn-archive/archive.git] / package / busybox / config / archival / Config.in
1 #
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 config BUSYBOX_CONFIG_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
31 config BUSYBOX_CONFIG_FEATURE_AR_LONG_FILENAMES
32 bool "Enable support for long filenames (not need for debs)"
33 default n
34 depends on BUSYBOX_CONFIG_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
41 config BUSYBOX_CONFIG_BUNZIP2
42 bool "bunzip2"
43 default y
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
57 config BUSYBOX_CONFIG_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
71 config BUSYBOX_CONFIG_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
80 config BUSYBOX_CONFIG_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
91 config BUSYBOX_CONFIG_FEATURE_DPKG_DEB_EXTRACT_ONLY
92 bool "extract only (-x)"
93 default n
94 depends on BUSYBOX_CONFIG_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
100 config BUSYBOX_CONFIG_GUNZIP
101 bool "gunzip"
102 default y
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
108 config BUSYBOX_CONFIG_FEATURE_GUNZIP_UNCOMPRESS
109 bool "Uncompress support"
110 default y
111 depends on BUSYBOX_CONFIG_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
117 config BUSYBOX_CONFIG_GZIP
118 bool "gzip"
119 default y
120 help
121 gzip is used to compress files.
122 It's probably the most widely used UNIX compression program.
123
124 config BUSYBOX_CONFIG_IPKG
125 bool "ipkg"
126 default y
127 select BUSYBOX_CONFIG_MD5SUM
128 select BUSYBOX_CONFIG_WGET
129 select BUSYBOX_CONFIG_DIFF
130 help
131 ipkg is the itsy package management system.
132
133 config BUSYBOX_CONFIG_RPM2CPIO
134 bool "rpm2cpio"
135 default n
136 help
137 Converts an RPM file into a CPIO archive.
138
139 config BUSYBOX_CONFIG_RPM
140 bool "rpm"
141 default n
142 help
143 Mini RPM applet - queries and extracts RPM packages.
144
145 config BUSYBOX_CONFIG_TAR
146 bool "tar"
147 default y
148 help
149 tar is an archiving program. It's commonly used with gzip to
150 create compressed archives. It's probably the most widely used
151 UNIX archive program.
152
153 config BUSYBOX_CONFIG_FEATURE_TAR_CREATE
154 bool "Enable archive creation"
155 default y
156 depends on BUSYBOX_CONFIG_TAR
157 help
158 If you enable this option you'll be able to create
159 tar archives using the `-c' option.
160
161 config BUSYBOX_CONFIG_FEATURE_TAR_BZIP2
162 bool "Enable -j option to handle .tar.bz2 files"
163 default y
164 depends on BUSYBOX_CONFIG_TAR
165 help
166 If you enable this option you'll be able to extract
167 archives compressed with bzip2.
168
169 config BUSYBOX_CONFIG_FEATURE_TAR_LZMA
170 bool "Enable -a option to handle .tar.lzma files"
171 default n
172 depends on BUSYBOX_CONFIG_TAR
173 help
174 If you enable this option you'll be able to extract
175 archives compressed with lzma.
176
177 config BUSYBOX_CONFIG_FEATURE_TAR_FROM
178 bool "Enable -X (exclude from) and -T (include from) options)"
179 default y
180 depends on BUSYBOX_CONFIG_TAR
181 help
182 If you enable this option you'll be able to specify
183 a list of files to include or exclude from an archive.
184
185 config BUSYBOX_CONFIG_FEATURE_TAR_GZIP
186 bool "Enable -z option"
187 default y
188 depends on BUSYBOX_CONFIG_TAR
189 help
190 If you enable this option tar will be able to call gzip,
191 when creating or extracting tar gziped archives.
192
193 config BUSYBOX_CONFIG_FEATURE_TAR_COMPRESS
194 bool "Enable -Z option"
195 default n
196 depends on BUSYBOX_CONFIG_TAR
197 help
198 If you enable this option tar will be able to call uncompress,
199 when extracting .tar.Z archives.
200
201 config BUSYBOX_CONFIG_FEATURE_TAR_OLDGNU_COMPATIBILITY
202 bool "Enable support for old tar header format"
203 default n
204 depends on BUSYBOX_CONFIG_TAR
205 help
206 This option is required to unpack archives created in
207 the old GNU format; help to kill this old format by
208 repacking your ancient archives with the new format.
209
210 config BUSYBOX_CONFIG_FEATURE_TAR_GNU_EXTENSIONS
211 bool "Enable support for some GNU tar extensions"
212 default y
213 depends on BUSYBOX_CONFIG_TAR
214 help
215 With this option busybox supports GNU long filenames and
216 linknames.
217
218 config BUSYBOX_CONFIG_FEATURE_TAR_LONG_OPTIONS
219 bool "Enable long options"
220 default n
221 depends on BUSYBOX_CONFIG_TAR && BUSYBOX_CONFIG_GETOPT_LONG
222 help
223 Enable use of long options, increases size by about 400 Bytes
224
225 config BUSYBOX_CONFIG_UNCOMPRESS
226 bool "uncompress"
227 default n
228 help
229 uncompress is used to decompress archives created by compress.
230 Not much used anymore, replaced by gzip/gunzip.
231
232 config BUSYBOX_CONFIG_UNLZMA
233 bool "unlzma"
234 default n
235 help
236 unlzma is a compression utility using the Lempel-Ziv-Markov chain
237 compression algorithm, and range coding. Compression
238 is generally considerably better than that achieved by the bzip2
239 compressors.
240
241 The BusyBox unlzma applet is limited to de-compression only.
242 On an x86 system, this applet adds about 4K.
243
244 Unless you have a specific application which requires unlzma, you
245 should probably say N here.
246
247 config BUSYBOX_CONFIG_FEATURE_LZMA_FAST
248 bool "Optimze unlzma for speed"
249 default n
250 depends on BUSYBOX_CONFIG_UNLZMA
251 help
252 This option reduces decompression time by about 33% at the cost of
253 a 2K bigger binary.
254
255 config BUSYBOX_CONFIG_UNZIP
256 bool "unzip"
257 default n
258 help
259 unzip will list or extract files from a ZIP archive,
260 commonly found on DOS/WIN systems. The default behavior
261 (with no options) is to extract the archive into the
262 current directory. Use the `-d' option to extract to a
263 directory of your choice.
264
265 comment "Common options for cpio and tar"
266 depends on BUSYBOX_CONFIG_CPIO || BUSYBOX_CONFIG_TAR
267
268 config BUSYBOX_CONFIG_FEATURE_UNARCHIVE_TAPE
269 bool "Enable tape drive support"
270 default n
271 depends on BUSYBOX_CONFIG_CPIO || BUSYBOX_CONFIG_TAR
272 help
273 I don't think this is needed anymore.
274
275 comment "Common options for dpkg and dpkg_deb"
276 depends on BUSYBOX_CONFIG_DPKG || BUSYBOX_CONFIG_DPKG_DEB
277
278 config BUSYBOX_CONFIG_FEATURE_DEB_TAR_GZ
279 bool "gzip debian packages (normal)"
280 default n if BUSYBOX_CONFIG_DPKG || BUSYBOX_CONFIG_DPKG_DEB
281 depends on BUSYBOX_CONFIG_DPKG || BUSYBOX_CONFIG_DPKG_DEB
282 help
283 This is the default compression method inside the debian ar file.
284
285 If you want compatibility with standard .deb's you should say yes here.
286
287 config BUSYBOX_CONFIG_FEATURE_DEB_TAR_BZ2
288 bool "bzip2 debian packages"
289 default n
290 depends on BUSYBOX_CONFIG_DPKG || BUSYBOX_CONFIG_DPKG_DEB
291 help
292 This allows dpkg and dpkg-deb to extract deb's that are compressed internally
293 with bzip2 instead of gzip.
294
295 You only want this if you are creating your own custom debian packages that
296 use an internal control.tar.bz2 or data.tar.bz2.
297
298 config BUSYBOX_CONFIG_FEATURE_DEB_TAR_LZMA
299 bool "lzma debian packages"
300 default n
301 depends on BUSYBOX_CONFIG_DPKG || BUSYBOX_CONFIG_DPKG_DEB
302 help
303 This allows dpkg and dpkg-deb to extract deb's that are compressed
304 internally with lzma instead of gzip.
305
306 You only want this if you are creating your own custom debian
307 packages that use an internal control.tar.lzma or data.tar.lzma.
308
309 endmenu