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| CITAZIONE (`Gravis @ 18/11/2015, 17:46) Stavo smanettando un po' con xdelta3 per capire come funziona.
[...] Avevi letto la pagina help? o anche attraverso il comando xdelta3 -h HTML CODICE Xdelta version 3.0.10, Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015 Joshua MacDonald
Xdelta comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; see "COPYING" for details.
usage: xdelta3 [command/options] [input [output]]
make patch:
xdelta3.exe -e -s old_file new_file delta_file
apply patch:
xdelta3.exe -d -s old_file delta_file decoded_new_file
special command names:
config prints xdelta3 configuration
decode decompress the input
encode compress the input
test run the builtin tests
merge patches:
xdelta3 merge -m 1.vcdiff -m 2.vcdiff 3.vcdiff merged.vcdiff
standard options:
-0 .. -9 compression level
-c use stdout
-d decompress
-e compress
-f force (overwrite, ignore trailing garbage)
-h show help
-q be quiet
-v be verbose (max 2)
-V show version
memory options:
-B bytes source window size
-W bytes input window size
-P size compression duplicates window
-I size instruction buffer size (0 = unlimited)
compression options:
-s source source file to copy from (if any)
-S [lzma|djw|fgk] enable/disable secondary compression
-N disable small string-matching compression
-D disable external decompression (encode/decode)
-R disable external recompression (decode)
-n disable checksum (encode/decode)
-C soft config (encode, undocumented)
-A [apphead] disable/provide application header (encode)
-J disable output (check/compute only)
-m arguments for "merge"
the XDELTA environment variable may contain extra args:
XDELTA="-s source-x.y.tar.gz" \
tar --use-compress-program=xdelta3 \
-cf target-x.z.tar.gz.vcdiff target-x.y |
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