updated `zstd -h`
to help readability. Group arguments into categories, try to give better visibility to more common arguments.dev
Yann Collet
parent
a036f60255
commit
e5366bee16
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@ -213,13 +213,13 @@ zstd-noxz : LZMALD :=
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zstd-noxz : LZMA_MSG := - xz/lzma support is disabled
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zstd-noxz : zstd
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# note : the following target doesn't build
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## zstd-dll: zstd executable linked to dynamic library libzstd (must already exist)
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# note : the following target doesn't link
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# because zstd uses non-public symbols from libzstd
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# such as XXH64 (for benchmark),
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# ZDICT_trainFromBuffer_unsafe_legacy for dictionary builder
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# and ZSTD_cycleLog (likely for --patch-from)
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# It's unclear at this stage if this is a scenario we want to support
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## zstd-dll: zstd executable linked to dynamic library libzstd (must already exist)
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# ZDICT_trainFromBuffer_unsafe_legacy (for dictionary builder)
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# and ZSTD_cycleLog (likely for --patch-from).
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# It's unclear at this stage if this is a scenario that must be supported
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.PHONY: zstd-dll
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zstd-dll : LDFLAGS+= -L$(ZSTDDIR) -lzstd
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zstd-dll : ZSTDLIB_FILES =
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@ -227,6 +227,7 @@ zstd-dll : $(ZSTD_CLI_OBJ)
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$(CC) $(FLAGS) $^ -o $@$(EXT) $(LDFLAGS)
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## zstd-pgo: zstd executable optimized with pgo. `gcc` only.
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zstd-pgo :
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$(MAKE) clean
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$(MAKE) zstd MOREFLAGS=-fprofile-generate
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@ -122,9 +122,9 @@ static void usage(FILE* f, const char* programName)
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#ifndef ZSTD_NODECOMPRESS
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DISPLAY_F(f, " -d : decompression \n");
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#endif
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DISPLAY_F(f, " -D file: use `file` as Dictionary \n");
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DISPLAY_F(f, " -o file: result stored into `file` (only if 1 input file) \n");
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DISPLAY_F(f, " -f : overwrite output without prompting and (de)compress links \n");
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DISPLAY_F(f, " -D DICT: use DICT as Dictionary for compression or decompression \n");
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DISPLAY_F(f, " -o file: result stored into file \n");
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DISPLAY_F(f, " -f : overwrite output without prompting, also (de)compress links \n");
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DISPLAY_F(f, "--rm : remove source file(s) after successful de/compression \n");
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DISPLAY_F(f, " -k : preserve source file(s) (default) \n");
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DISPLAY_F(f, " -h/-H : display help/long help and exit \n");
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@ -137,34 +137,42 @@ static void usage_advanced(const char* programName)
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DISPLAYOUT( "\n");
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DISPLAYOUT( "Advanced arguments : \n");
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DISPLAYOUT( " -V : display Version number and exit \n");
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DISPLAYOUT( " -c : force write to standard output, even if it is the console \n");
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DISPLAYOUT( " -v : verbose mode; specify multiple times to increase verbosity \n");
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DISPLAYOUT( " -q : suppress warnings; specify twice to suppress errors too \n");
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DISPLAYOUT( " -c : force write to standard output, even if it is the console\n");
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DISPLAYOUT( " -l : print information about zstd compressed files \n");
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DISPLAYOUT( "--exclude-compressed: only compress files that are not previously compressed \n");
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DISPLAYOUT( "--no-progress : do not display the progress counter \n");
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#ifdef UTIL_HAS_CREATEFILELIST
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DISPLAYOUT( " -r : operate recursively on directories \n");
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DISPLAYOUT( "--filelist=FILE : read list of files to operate upon from FILE \n");
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DISPLAYOUT( "--output-dir-flat=DIR : all resulting files are stored into DIR \n");
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#endif
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DISPLAYOUT( "-- : All arguments after \"--\" are treated as files \n");
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#ifndef ZSTD_NOCOMPRESS
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DISPLAYOUT( "\n");
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DISPLAYOUT( "Advanced compression arguments : \n");
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DISPLAYOUT( "--ultra : enable levels beyond %i, up to %i (requires more memory) \n", ZSTDCLI_CLEVEL_MAX, ZSTD_maxCLevel());
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DISPLAYOUT( "--long[=#]: enable long distance matching with given window log (default: %u) \n", g_defaultMaxWindowLog);
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DISPLAYOUT( "--fast[=#]: switch to very fast compression levels (default: %u) \n", 1);
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DISPLAYOUT( "--adapt : dynamically adapt compression level to I/O conditions \n");
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DISPLAYOUT( "--stream-size=# : optimize compression parameters for streaming input of given number of bytes \n");
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DISPLAYOUT( "--size-hint=# optimize compression parameters for streaming input of approximately this size\n");
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DISPLAYOUT( "--target-compressed-block-size=# : make compressed block near targeted size \n");
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# ifdef ZSTD_MULTITHREAD
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DISPLAYOUT( " -T# : spawns # compression threads (default: 1, 0==# cores) \n");
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DISPLAYOUT( " -B# : select size of each job (default: 0==automatic) \n");
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DISPLAYOUT( "--single-thread : use a single thread for both I/O and compression (result slightly different than -T1) \n");
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DISPLAYOUT( "--rsyncable : compress using a rsync-friendly method (-B sets block size) \n");
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# endif
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DISPLAYOUT( "--no-dictID : don't write dictID into header (dictionary compression)\n");
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DISPLAYOUT( "--[no-]check : integrity check (default: enabled) \n");
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DISPLAYOUT( "--exclude-compressed: only compress files that are not already compressed \n");
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DISPLAYOUT( "--stream-size=# : specify size of streaming input from `stdin` \n");
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DISPLAYOUT( "--size-hint=# optimize compression parameters for streaming input of approximately this size \n");
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DISPLAYOUT( "--target-compressed-block-size=# : generate compressed block of approximately targeted size \n");
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DISPLAYOUT( "--no-dictID : don't write dictID into header (dictionary compression only) \n");
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DISPLAYOUT( "--[no-]check : add XXH64 integrity checksum to frame (default: enabled) \n");
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DISPLAYOUT( "--[no-]compress-literals : force (un)compressed literals \n");
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#endif /* !ZSTD_NOCOMPRESS */
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#ifdef UTIL_HAS_CREATEFILELIST
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DISPLAYOUT( " -r : operate recursively on directories \n");
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DISPLAYOUT( "--filelist=FILE : read a list of files from FILE. \n");
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DISPLAYOUT( "--output-dir-flat=DIR : all resulting files are stored into DIR. \n");
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#endif
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DISPLAYOUT( "--format=zstd : compress files to the .zst format (default) \n");
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#ifdef ZSTD_GZCOMPRESS
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DISPLAYOUT( "--format=gzip : compress files to the .gz format \n");
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@ -176,17 +184,21 @@ static void usage_advanced(const char* programName)
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#ifdef ZSTD_LZ4COMPRESS
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DISPLAYOUT( "--format=lz4 : compress files to the .lz4 format \n");
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#endif
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#endif /* !ZSTD_NOCOMPRESS */
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#ifndef ZSTD_NODECOMPRESS
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DISPLAYOUT( "\n");
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DISPLAYOUT( "Advanced decompression arguments : \n");
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DISPLAYOUT( " -l : print information about zstd compressed files \n");
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DISPLAYOUT( "--test : test compressed file integrity \n");
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DISPLAYOUT( " -M# : Set a memory usage limit for decompression \n");
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# if ZSTD_SPARSE_DEFAULT
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DISPLAYOUT( "--[no-]sparse : sparse mode (default: enabled on file, disabled on stdout) \n");
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# else
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DISPLAYOUT( "--[no-]sparse : sparse mode (default: disabled) \n");
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# endif
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#endif
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DISPLAYOUT( " -M# : Set a memory usage limit for decompression \n");
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DISPLAYOUT( "--no-progress : do not display the progress bar \n");
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DISPLAYOUT( "-- : All arguments after \"--\" are treated as files \n");
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#endif /* ZSTD_NODECOMPRESS */
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#ifndef ZSTD_NODICT
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DISPLAYOUT( "\n");
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DISPLAYOUT( "Dictionary builder : \n");
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@ -194,19 +206,22 @@ static void usage_advanced(const char* programName)
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DISPLAYOUT( "--train-cover[=k=#,d=#,steps=#,split=#,shrink[=#]] : use the cover algorithm with optional args \n");
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DISPLAYOUT( "--train-fastcover[=k=#,d=#,f=#,steps=#,split=#,accel=#,shrink[=#]] : use the fast cover algorithm with optional args \n");
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DISPLAYOUT( "--train-legacy[=s=#] : use the legacy algorithm with selectivity (default: %u) \n", g_defaultSelectivityLevel);
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DISPLAYOUT( " -o file : `file` is dictionary name (default: %s) \n", g_defaultDictName);
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DISPLAYOUT( " -o DICT : DICT is dictionary name (default: %s) \n", g_defaultDictName);
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DISPLAYOUT( "--maxdict=# : limit dictionary to specified size (default: %u) \n", g_defaultMaxDictSize);
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DISPLAYOUT( "--dictID=# : force dictionary ID to specified value (default: random) \n");
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#endif
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#ifndef ZSTD_NOBENCH
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DISPLAYOUT( "\n");
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DISPLAYOUT( "Benchmark arguments : \n");
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DISPLAYOUT( " -b# : benchmark file(s), using # compression level (default: %d) \n", ZSTDCLI_CLEVEL_DEFAULT);
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DISPLAYOUT( " -e# : test all compression levels from -bX to # (default: 1)\n");
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DISPLAYOUT( " -e# : test all compression levels successively from -b# to -e# (default: 1) \n");
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DISPLAYOUT( " -i# : minimum evaluation time in seconds (default: 3s) \n");
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DISPLAYOUT( " -B# : cut file into independent blocks of size # (default: no block) \n");
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DISPLAYOUT( " -S : output one benchmark result per input file (default: consolidated result) \n");
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DISPLAYOUT( "--priority=rt : set process priority to real-time \n");
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#endif
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}
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static void badusage(const char* programName)
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