pristine-xz(1)

NAME

   pristine-xz - regenerate pristine xz files

SYNOPSIS

   pristine-xz [-vdk] gendelta file.xz delta

   pristine-xz [-vdk] genxz delta file

DESCRIPTION

   This is a complement to the pristine-tar(1) command. Normally you don't
   need to run it by hand, since pristine-tar calls it as necessary to
   handle .tar.xz files.

   pristine-xz gendelta takes the specified xz file, and generates a small
   binary delta file that can later be used by pristine-xz genxz to
   recreate the original file.

   pristine-xz genxz takes the specified delta file, and compresses the
   specified input file (which must be identical to the contents of the
   original xz file). The resulting file will be identical to the original
   gz file used to create the delta.

   The approach used to regenerate the original xz file is to figure out
   how it was produced -- what compression level was used, etc. Currently
   support is poor for xz files produced with unusual compression options.

   If the delta filename is "-", pristine-xz reads or writes it to stdio.

OPTIONS

   -v  Verbose mode, show each command that is run.

   -d  Debug mode.

   -k  Don't clean up the temporary directory on exit.

   -t  Try harder to determine how to generate deltas of difficult xz
       files.

ENVIRONMENT

   TMPDIR
       Specifies a location to place temporary files, other than the
       default.

AUTHOR

   Joey Hess <joeyh@debian.org>, Faidon Liambotis <paravoid@debian.org>,
   Cyril Brulebois <cyril.brulebois@enst-bretagne.fr>

   Licensed under the GPL, version 2.

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Free and Open Source Software