NAME

       debdiff-apply - apply a debdiff to a Debian source package

SYNOPSIS

       debdiff-apply [options] [orig_dsc_or_dir] [patch_file]
       debdiff-apply [options] < [patch_file]

DESCRIPTION

       debdiff-apply takes a patchfile that describes the differences between two Debian source packages old and
       new, and applies it to a target Debian source package orig.

       orig  could  either  be  the same as old or it could be different.  patchfile is expected to be a unified
       diff between two Debian source trees, as what debdiff(1) normally generates.

       Any changes to debian/changelog are dealt with specially, to avoid the  conflicts  that  changelog  diffs
       typically  produce  when applied naively. The exact behaviour may be tweaked in the future, so one should
       not rely on it.

       If patchfile does not apply to orig, even after the special-casing of debian/changelog,  no  changes  are
       made and debdiff-apply(1) will exit with a non-zero error code.

ARGUMENTS

       orig_dsc_or_dir
              Target  to  apply the patch to. This can either be an unpacked source tree, or a .dsc file. In the
              former case, the directory is modified in-place; in the latter case, a  second  .dsc  is  created.
              Default: .

       patch_file
              Patch file to apply, in the format output by debdiff(1).  Default: /dev/stdin

OPTIONS

       -h, --help
              show this help message and exit

       -v, --verbose
              Output more information

       -c CHANGELOG, --changelog CHANGELOG
              Path to debian/changelog; default: debian/changelog

       -D DISTRIBUTION, --distribution DISTRIBUTION
              Distribution to use, if the patch doesn't already contain a changelog; default: experimental

       --repl Run the python REPL after processing.

       --source-version
              Don't  apply  the  patch;  instead  print out the version of the package that it is supposed to be
              applied to, or nothing if the patch does not specify a source version.

       --target-version
              Don't apply the patch; instead print out the new version of  the  package  debdiff-apply(1)  would
              generate,  when  the  patch  is applied to the the given target package, as specified by the other
              arguments.

   For .dsc patch targets:
       --no-clean
              Don't clean temporary directories after a failure, so you can examine what failed.

       --quilt-refresh
              If the building of the new source package fails, try to refresh patches using  quilt(1)  then  try
              building it again.

       -d DIRECTORY, --directory DIRECTORY
              Extract  the  .dsc into this directory, which won't be cleaned up after debdiff-apply(1) exits. If
              not given, then it will be extracted to a temporary directory.

AUTHORS

       debdiff-apply and this manual page were written by Ximin Luo <infinity0@debian.org>

       Both are released under the GNU General Public License, version 3 or later.

SEE ALSO

       debdiff(1)

DEBIAN                                          Debian Utilities                                DEBDIFF-APPLY(1)