1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
|
///////////////////////////////////////////////////////////////////////////////
//
/// \file help.c
/// \brief Help messages
//
// Copyright (C) 2007 Lasse Collin
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
///////////////////////////////////////////////////////////////////////////////
#include "private.h"
extern void
show_try_help(void)
{
// Print this with V_WARNING instead of V_ERROR to prevent it from
// showing up when --quiet has been specified.
errmsg(V_WARNING, _("Try `%s --help' for more information."), argv0);
return;
}
extern void lzma_attribute((noreturn))
show_help(void)
{
printf(_("Usage: %s [OPTION]... [FILE]...\n"
"Compress or decompress FILEs in the .lzma format.\n"
"\n"), argv0);
puts(_("Mandatory arguments to long options are mandatory for "
"short options too.\n"));
puts(_(
" Operation mode:\n"
"\n"
" -z, --compress force compression\n"
" -d, --decompress force decompression\n"
" -t, --test test compressed file integrity\n"
" -l, --list list block sizes, total sizes, and possible metadata\n"
));
puts(_(
" Operation modifiers:\n"
"\n"
" -k, --keep keep (don't delete) input files\n"
" -f, --force force overwrite of output file and (de)compress links\n"
" -c, --stdout write to standard output and don't delete input files\n"
" -S, --suffix=.SUF use suffix `.SUF' on compressed files instead of `.lzma'\n"
" -F, --format=FMT file format to encode or decode; possible values are\n"
" `auto' (default), `native', `alone', and `raw'\n"
" --files=[FILE] read filenames to process from FILE; if FILE is\n"
" omitted, filenames are read from the standard input;\n"
" filenames must be terminated with the newline character\n"
" --files0=[FILE] like --files but use the nul byte as terminator\n"
));
puts(_(
" Compression presets and basic compression options:\n"
"\n"
" -1 .. -2 fast compression\n"
" -3 .. -6 good compression\n"
" -7 .. -9 excellent compression, but needs a lot of memory;\n"
" default is -7 if memory limit allows\n"
"\n"
" -C, --check=CHECK integrity check type: `crc32', `crc64' (default),\n"
" or `sha256'\n"
));
puts(_(
" Custom filter chain for compression (alternative for using presets):\n"
"\n"
" --lzma1=[OPTS] LZMA1 or LZMA2; OPTS is a comma-separated list of zero or\n"
" --lzma2=[OPTS] more of the following options (valid values; default):\n"
" dict=NUM dictionary size in bytes (1 - 1GiB; 8MiB)\n"
" lc=NUM number of literal context bits (0-4; 3)\n"
" lp=NUM number of literal position bits (0-4; 0)\n"
" pb=NUM number of position bits (0-4; 2)\n"
" mode=MODE compression mode (`fast' or `best'; `best')\n"
" nice=NUM nice length of a match (2-273; 64)\n"
" mf=NAME match finder (hc3, hc4, bt2, bt3, bt4; bt4)\n"
" depth=NUM maximum search depth; 0=automatic (default)\n"
"\n"
" --x86 x86 filter (sometimes called BCJ filter)\n"
" --powerpc PowerPC (big endian) filter\n"
" --ia64 IA64 (Itanium) filter\n"
" --arm ARM filter\n"
" --armthumb ARM-Thumb filter\n"
" --sparc SPARC filter\n"
"\n"
" --delta=[OPTS] Delta filter; valid OPTS (valid values; default):\n"
" dist=NUM distance between bytes being subtracted\n"
" from each other (1-256; 1)\n"
"\n"
" --subblock=[OPTS] Subblock filter; valid OPTS (valid values; default):\n"
" size=NUM number of bytes of data per subblock\n"
" (1 - 256Mi; 4Ki)\n"
" rle=NUM run-length encoder chunk size (0-256; 0)\n"
));
puts(_(
" Resource usage options:\n"
"\n"
" -M, --memory=NUM use roughly NUM bytes of memory at maximum\n"
" -T, --threads=NUM use a maximum of NUM (de)compression threads\n"
// " --threading=STR threading style; possible values are `auto' (default),\n"
// " `files', and `stream'
));
puts(_(
" Other options:\n"
"\n"
" -q, --quiet suppress warnings; specify twice to suppress errors too\n"
" -v, --verbose be verbose; specify twice for even more verbose\n"
"\n"
" -h, --help display this help and exit\n"
" -V, --version display version and license information and exit\n"));
puts(_("With no FILE, or when FILE is -, read standard input.\n"));
size_t mem_limit = opt_memory / (1024 * 1024);
if (mem_limit == 0)
mem_limit = 1;
// We use PRIu64 instead of %zu to support pre-C99 libc.
puts(_("On this system and configuration, the tool will use"));
printf(_(" * roughly %" PRIu64 " MiB of memory at maximum; and\n"),
(uint64_t)(mem_limit));
printf(N_(" * at maximum of one thread for (de)compression.\n\n",
" * at maximum of %" PRIu64
" threads for (de)compression.\n\n",
(uint64_t)(opt_threads)), (uint64_t)(opt_threads));
printf(_("Report bugs to <%s> (in English or Finnish).\n"),
PACKAGE_BUGREPORT);
my_exit(SUCCESS);
}
extern void lzma_attribute((noreturn))
show_version(void)
{
printf(
"lzma (LZMA Utils) " PACKAGE_VERSION "\n"
"\n"
"Copyright (C) 1999-2008 Igor Pavlov\n"
"Copyright (C) 2007-2008 Lasse Collin\n"
"\n"
"This program is free software; you can redistribute it and/or modify\n"
"it under the terms of the GNU General Public License as published by\n"
"the Free Software Foundation; either version 2 of the License, or\n"
"(at your option) any later version.\n"
"\n"
"This program is distributed in the hope that it will be useful,\n"
"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
"GNU General Public License for more details.\n"
"\n");
my_exit(SUCCESS);
}
|
