diff options
Diffstat (limited to 'src/xz/message.c')
| -rw-r--r-- | src/xz/message.c | 94 |
1 files changed, 60 insertions, 34 deletions
diff --git a/src/xz/message.c b/src/xz/message.c index abf30ad..deafdb4 100644 --- a/src/xz/message.c +++ b/src/xz/message.c @@ -1,12 +1,12 @@ +// SPDX-License-Identifier: 0BSD + /////////////////////////////////////////////////////////////////////////////// // /// \file message.c /// \brief Printing messages // -// Author: Lasse Collin -// -// This file has been put into the public domain. -// You can do whatever you want with this file. +// Authors: Lasse Collin +// Jia Tan // /////////////////////////////////////////////////////////////////////////////// @@ -42,7 +42,7 @@ static bool current_filename_printed = false; /// True if we should print progress indicator and update it automatically /// if also verbose >= V_VERBOSE. -static bool progress_automatic; +static bool progress_automatic = false; /// True if message_progress_start() has been called but /// message_progress_end() hasn't been called yet. @@ -119,26 +119,7 @@ message_init(void) // exception, even if --verbose was not used, user can send SIGALRM // to make us print progress information once without automatic // updating. - progress_automatic = isatty(STDERR_FILENO); - - // Commented out because COLUMNS is rarely exported to environment. - // Most users have at least 80 columns anyway, let's think something - // fancy here if enough people complain. -/* - if (progress_automatic) { - // stderr is a terminal. Check the COLUMNS environment - // variable to see if the terminal is wide enough. If COLUMNS - // doesn't exist or it has some unparsable value, we assume - // that the terminal is wide enough. - const char *columns_str = getenv("COLUMNS"); - if (columns_str != NULL) { - char *endptr; - const long columns = strtol(columns_str, &endptr, 10); - if (*endptr != '\0' || columns < 80) - progress_automatic = false; - } - } -*/ + progress_automatic = is_tty(STDERR_FILENO); #ifdef SIGALRM // Establish the signal handlers which set a flag to tell us that @@ -932,7 +913,7 @@ message_try_help(void) { // Print this with V_WARNING instead of V_ERROR to prevent it from // showing up when --quiet has been specified. - message(V_WARNING, _("Try `%s --help' for more information."), + message(V_WARNING, _("Try '%s --help' for more information."), progname); return; } @@ -994,7 +975,7 @@ message_help(bool long_help) " ignore possible remaining input data")); puts(_( " --no-sparse do not create sparse files when decompressing\n" -" -S, --suffix=.SUF use the suffix `.SUF' on compressed files\n" +" -S, --suffix=.SUF use the suffix '.SUF' on compressed files\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" @@ -1005,9 +986,9 @@ message_help(bool long_help) puts(_("\n Basic file format and compression options:\n")); puts(_( " -F, --format=FMT file format to encode or decode; possible values are\n" -" `auto' (default), `xz', `lzma', `lzip', and `raw'\n" -" -C, --check=CHECK integrity check type: `none' (use with caution),\n" -" `crc32', `crc64' (default), or `sha256'")); +" 'auto' (default), 'xz', 'lzma', 'lzip', and 'raw'\n" +" -C, --check=CHECK integrity check type: 'none' (use with caution),\n" +" 'crc32', 'crc64' (default), or 'sha256'")); puts(_( " --ignore-check don't verify the integrity check when decompressing")); } @@ -1021,8 +1002,8 @@ message_help(bool long_help) " does not affect decompressor memory requirements")); puts(_( -" -T, --threads=NUM use at most NUM threads; the default is 1; set to 0\n" -" to use as many threads as there are processor cores")); +" -T, --threads=NUM use at most NUM threads; the default is 0 which uses\n" +" as many threads as there are processor cores")); if (long_help) { puts(_( @@ -1030,9 +1011,11 @@ message_help(bool long_help) " start a new .xz block after every SIZE bytes of input;\n" " use this to set the block size for threaded compression")); puts(_( -" --block-list=SIZES\n" +" --block-list=BLOCKS\n" " start a new .xz block after the given comma-separated\n" -" intervals of uncompressed data")); +" intervals of uncompressed data; optionally, specify a\n" +" filter chain number (0-9) followed by a ':' before the\n" +" uncompressed data size")); puts(_( " --flush-timeout=TIMEOUT\n" " when compressing, if more than TIMEOUT milliseconds has\n" @@ -1057,6 +1040,23 @@ message_help(bool long_help) puts(_( "\n Custom filter chain for compression (alternative for using presets):")); + puts(_( +"\n" +" --filters=FILTERS set the filter chain using the liblzma filter string\n" +" syntax; use --filters-help for more information" + )); + + puts(_( +" --filters1=FILTERS ... --filters9=FILTERS\n" +" set additional filter chains using the liblzma filter\n" +" string syntax to use with --block-list" + )); + + puts(_( +" --filters-help display more information about the liblzma filter string\n" +" syntax and exit." + )); + #if defined(HAVE_ENCODER_LZMA1) || defined(HAVE_DECODER_LZMA1) \ || defined(HAVE_ENCODER_LZMA2) || defined(HAVE_DECODER_LZMA2) // TRANSLATORS: The word "literal" in "literal context bits" @@ -1087,6 +1087,7 @@ message_help(bool long_help) " --powerpc[=OPTS] PowerPC BCJ filter (big endian only)\n" " --ia64[=OPTS] IA-64 (Itanium) BCJ filter\n" " --sparc[=OPTS] SPARC BCJ filter\n" +" --riscv[=OPTS] RISC-V BCJ filter\n" " Valid OPTS for all BCJ filters:\n" " start=NUM start offset for conversions (default=0)")); @@ -1144,3 +1145,28 @@ message_help(bool long_help) tuklib_exit(E_SUCCESS, E_ERROR, verbosity != V_SILENT); } + + +extern void +message_filters_help(void) +{ + char *encoder_options; + if (lzma_str_list_filters(&encoder_options, LZMA_VLI_UNKNOWN, + LZMA_STR_ENCODER, NULL) != LZMA_OK) + message_bug(); + + if (!opt_robot) { + puts(_( +"Filter chains are set using the --filters=FILTERS or\n" +"--filters1=FILTERS ... --filters9=FILTERS options. Each filter in the chain\n" +"can be separated by spaces or '--'. Alternatively a preset <0-9>[e] can be\n" +"specified instead of a filter chain.\n" + )); + + puts(_("The supported filters and their options are:")); + } + + puts(encoder_options); + + tuklib_exit(E_SUCCESS, E_ERROR, verbosity != V_SILENT); +} |