AuroraMiddleware/zstd
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Updated doc

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This commit is contained in:
Yann Collet 2016-07-02 00:37:32 +02:00
parent cebab1d322
commit a7a5d7736c
2 changed files with 21 additions and 10 deletions
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21
programs/zstd.1
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@ -33,7 +33,8 @@ It is based on the \fBLZ77\fR family, with further FSE & huff0 entropy stages.
It also features a very fast decoder, with speed > 500 MB/s per core.
\fBzstd\fR command line is generally similar to gzip, but features the following differences :
- Original files are preserved
- Source files are preserved by default
It's possible to remove them automatically by using \fB--rm\fR command
- By default, when compressing a single file, \fBzstd\fR displays progress notifications and result summary.
Use \fB-q\fR to turn them off
@ -57,6 +58,19 @@ It also features a very fast decoder, with speed > 500 MB/s per core.
.BR \-f ", " --force
overwrite output without prompting
.TP
.BR \-c ", " --stdout
force write to standard output, even if it is the console
.TP
.BR \--rm
remove source file(s) after successful compression or decompression
.TP
.BR \-k ", " --keep
keep source file(s) after successful compression or decompression.
This is the default behavior.
.TP
.BR \-r
operate recursively on directories
.TP
.BR \-h/\-H ", " --help
display help/long help and exit
.TP
@ -69,14 +83,11 @@ It also features a very fast decoder, with speed > 500 MB/s per core.
.BR \-q ", " --quiet
suppress warnings and notifications; specify twice to suppress errors too
.TP
.BR \-c ", " --stdout
force write to standard output, even if it is the console
.TP
.BR \-C ", " --check
add integrity check computed from uncompressed data
.TP
.BR \-t ", " --test
Test the integrity of compressed files. This option is equivalent to \fB--decompress --stdout > /dev/null\fR.
Test the integrity of compressed files. This option is equivalent to \fB--decompress --stdout > /dev/null\fR.
No files are created or removed.
.SH DICTIONARY

10
programs/zstdcli.c
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@ -115,6 +115,7 @@ static int usage(const char* programName)
DISPLAY( " -D file: use `file` as Dictionary \n");
DISPLAY( " -o file: result stored into `file` (only if 1 input file) \n");
DISPLAY( " -f : overwrite output without prompting \n");
DISPLAY( "--rm : remove source file(s) after successful de/compression \n");
DISPLAY( " -h/-H : display help/long help and exit\n");
return 0;
}
@ -132,7 +133,6 @@ static int usage_advanced(const char* programName)
#ifdef UTIL_HAS_CREATEFILELIST
DISPLAY( " -r : operate recursively on directories\n");
#endif
DISPLAY( "--rm : remove source files after successful de/compression \n");
#ifndef ZSTD_NOCOMPRESS
DISPLAY( "--ultra : enable ultra modes (requires more memory to decompress)\n");
DISPLAY( "--no-dictID : don't write dictID into header (dictionary compression)\n");
@ -181,7 +181,7 @@ static void waitEnter(void)
/*! readU32FromChar() :
@return : unsigned integer value reach from input in `char` format
Will also modify `*stringPtr`, advancing it to position where it stopped reading.
Note : this function can overflow if result > MAX_UNIT */
Note : this function can overflow if result > MAX_UINT */
static unsigned readU32FromChar(const char** stringPtr)
{
unsigned result = 0;
@ -265,7 +265,7 @@ int main(int argCount, const char** argv)
if (!strcmp(argument, "--train")) { dictBuild=1; outFileName=g_defaultDictName; continue; }
if (!strcmp(argument, "--maxdict")) { nextArgumentIsMaxDict=1; continue; }
if (!strcmp(argument, "--dictID")) { nextArgumentIsDictID=1; continue; }
if (!strcmp(argument, "--keep")) { continue; } /* does nothing, since preserving input is default; for gzip/xz compatibility */
if (!strcmp(argument, "--keep")) { FIO_setRemoveSrcFile(0); continue; }
if (!strcmp(argument, "--rm")) { FIO_setRemoveSrcFile(1); continue; }
/* '-' means stdin/stdout */
@ -314,8 +314,8 @@ int main(int argCount, const char** argv)
/* Quiet mode */
case 'q': displayLevel--; argument++; break;
/* keep source file (default anyway, so useless; for gzip/xz compatibility) */
case 'k': argument++; break;
/* keep source file (default); for gzip/xz compatibility */
case 'k': FIO_setRemoveSrcFile(0); argument++; break;
/* Checksum */
case 'C': argument++; FIO_setChecksumFlag(2); break;