$ cd <dir>
$ git clone --recursive https://github.com/sisong/hsynz.git
$ cd hsynz
$ make

$ cd <dir>
$ git clone --recursive https://github.com/sisong/hsynz.git

hsync_make: [options] newDataPath out_hsyni_file [out_hsynz_file]
  newDataPath can be file or directory(folder),
  if newDataPath is a file & no -c-... option, out_hsynz_file can empty.
options:
  -s-matchBlockSize
      matchBlockSize>=128, DEFAULT -s-2k, recommended 1024,4k,...
  -b-safeBit
      set allow patch fail hash clash probability: 1/2^safeBit;
      safeBit>=14, DEFAULT -b-24, recommended 20,32...
  -p-parallelThreadNumber
    DEFAULT -p-4;
    if parallelThreadNumber>1 then open multi-thread Parallel mode;
  -c-compressType[-compressLevel]
      set out_hsynz_file Compress type & level, DEFAULT uncompress;
      support compress type & level:
        -c-zlib[-{1..9}[-dictBits]]     DEFAULT level 9
            dictBits can 9--15, DEFAULT 15.
        -c-gzip[-{1..9}[-dictBits]]     DEFAULT level 9
            dictBits can 9--15, DEFAULT 15.
            compress by zlib, out_hsynz_file is .gz file format.
        -c-ldef[-{1..12}]           DEFAULT level 12 (dictBits always 15).
            compress by libdeflate, compatible with zlib's deflate encoding.
        -c-lgzip[-{1..12}]          DEFAULT level 12 (dictBits always 15)
            compress by libdeflate, out_hsynz_file is .gz file format.
        -c-zstd[-{10..22}[-dictBits]]   DEFAULT level 21
            dictBits can 15--30, DEFAULT 24.
  -C-checksumType
      set strong Checksum type for block data, DEFAULT -C-xxh128;
      support checksum type:
        -C-xxh128
        -C-md5
        -C-sha512
        -C-sha256
        -C-crc32
            WARNING: crc32 is not strong & secure enough!
  -zsync[#KeY#=...#ValuE#=...[#KeY#=...#ValuE#=...]]
      create out_hsyni_file(.zsync file format) or out_hsynz_file(.gz file
         format) compatible with zsync.
      checksum default used sha1 & md4, not need set -C
      -s-matchBlockSize size must 2^N; if used -c-gzip or -c-lgzip (out
         .gz file), recommend set 4k at most, >=8k may fail.
      key-value string pairs will be write in out_hsyni_file; if needed,
         you can set Filename,Z-Filename,URL,Z-URL,MTime,Recompress,...
      zsync project https://zsync.moria.org.uk
  -n-maxOpenFileNumber
      limit Number of open files at same time when newDataPath is directory;
      maxOpenFileNumber>=8, DEFAULT -n-48, the best limit value by different
        operating system.
  -g#ignorePath[#ignorePath#...]
      set iGnore path list in newDataPath directory; ignore path list such as:
        #.DS_Store#desktop.ini#*thumbs*.db#.git*#.svn/#cache_*/00*11/*.tmp
      # means separator between names; (if char # in name, need write #: )
      * means can match any chars in name; (if char * in name, need write *: );
      / at the end of name means must match directory;
  -f  Force overwrite, ignore write path already exists;
      DEFAULT (no -f) not overwrite and then return error;
      if used -f and write path is exist directory, will always return error.
  --patch
      swap to hsync_demo mode.
  -v  output Version info.
  -h or -?
      output Help info (this usage).

download   : [options] -dl#hsyni_file_url hsyni_file
local  diff: [options] oldPath hsyni_file hsynz_file_url -diff#outDiffFile
local patch: [options] oldPath hsyni_file -patch#diffFile outNewPath
sync  infos: [options] oldPath hsyni_file [-diffi#cacheTempFile]
sync  patch: [options] oldPath [-dl#hsyni_file_url] hsyni_file hsynz_file_url [-diffi#cacheTempFile] outNewPath
  oldPath can be file or directory(folder),
  if oldPath is empty input parameter ""
options:
  -dl#hsyni_file_url
    download hsyni_file from hsyni_file_url befor sync patch;
  -diff#outDiffFile
    create diffFile from ranges of hsynz_file_url befor local patch;
  -diffi#cacheTempFile
    saving diffInfo to cache file for optimize speed when continue sync patch;
  -patch#diffFile
    local patch(oldPath+diffFile) to outNewPath;
  -U
    set hsynz_file_url is the original file before compress, please ignore the
      compress info in hsyni_file and directly access the data of hsynz file
      without decompress.
  -cdl-{0|1}        or  -cdl-{off|on}
    continue download data from breakpoint;
    DEFAULT -cdl-1 opened, need set -cdl-0 or -cdl-off to close continue mode;
  -rdl-retryDownloadNumber
    number of auto retry connection, when network disconnected while downloading;
    DEFAULT -rdl-0 retry closed; recommended 5,1k,1g,...
  -r-stepRangeNumber
    DEFAULT -r-32, recommended 16,20,...
    limit the maximum number of .hsynz data ranges that can be downloaded
    in a single request step;
    if http(s) server not support multi-ranges request, must set -r-1
  -p-parallelThreadNumber
    DEFAULT -p-4;
    if parallelThreadNumber>1 then open multi-thread Parallel mode;
    NOTE: now download data always used single-thread.
  -n-maxOpenFileNumber
      limit Number of open files at same time when oldPath is directory;
      maxOpenFileNumber>=8, DEFAULT -n-24, the best limit value by different
        operating system.
  -g#ignorePath[#ignorePath#...]
      set iGnore path list in oldPath directory; ignore path list such as:
        #.DS_Store#desktop.ini#*thumbs*.db#.git*#.svn/#cache_*/00*11/*.tmp
      # means separator between names; (if char # in name, need write #: )
      * means can match any chars in name; (if char * in name, need write *: );
      / at the end of name means must match directory;
  -f  Force overwrite, ignore write path already exists;
      DEFAULT (no -f) not overwrite and then return error;
      not support oldPath outNewPath same path!
      if used -f and outNewPath is exist file:
        if patch output file, will overwrite;
        if patch output directory, will always return error;
      if used -f and outNewPath is exist directory:
        if patch output file, will always return error;
        if patch output directory, will overwrite, but not delete
          needless existing files in directory.
  -v  output Version info.
  -h or -?
      output Help info (this usage).