Ubuntu Manpage: dpatch-edit-patch - maintain dpatch patches for a Debian source package

NAME

       dpatch-edit-patch - maintain dpatch patches for a Debian source package

SYNOPSIS

       dpatch-edit-patch [options] command dpatchname [basepatch]

DESCRIPTION

       This  manual  documents  the  dpatch-edit-patch command which maintains dpatch patches for a dpatch-using
       Debian source package.

       dpatch-edit-patch will copy the full tree to a temporary directory for working.

WARNING

       dpatch is deprecated, please switch to the `3.0  (quilt)'  Debian  source  package  format  instead.  See
       http://wiki.debian.org/Projects/DebSrc3.0#FAQ for a short guide on how to do it.

OPTIONS

dpatch-edit-patch takes two forms of arguments; options and commands. Currently, the only command that
exists is “patch”, which allows you to create/edit dpatches. When no command is given, “patch” is
assumed.

COMMANDS:
patch This command requires one mandatory argument, and accepts one optional argument under certain
circumstances. The mandatory argument is dpatchname. This refers to a dpatch, as it would be
listed in debian/patches/00list. It is not necessary for dpatchname to exist prior to running
dpatch-edit-patch patch dpatchname.

When dpatchname exists, dpatch-edit-patch will set up a working source tree, apply all dpatches
listed in debian/patches/00list up to and including dpatchname, and spawn an interactive shell for
the developer. The developer then edits files in this working tree. When the developer is done,
they exit the shell. dpatch-edit-patch then updates dpatchname to reflect the changes made.
Should the developer wish to abort the process from the interactive shell, they need only cause
the shell to exit with an exit value of 230. Typically, this is done by exiting the shell with
the command exit 230.

Would the developer wish to see the patch one's currently works on without exiting the subshell,
two environment variables are exported into the subshell to help with this: DPEP_SHELL_REFDIR,
which is set to the reference directory's full name, and DPEP_SHELL_WORKDIR, which is set to the
subshell's working directory.

These two can be used to - for example - generate a diff between the reference version and the
current tree:

diff -urNa $DPEP_SHELL_REFDIR $DPEP_SHELL_WORKDIR

When dpatchname does not exist, dpatch-edit-patch will assume that a new dpatch should be created. As
with the above scenario, dpatch-edit-patch first creates a working source tree. If the optional argument
basepatch is supplied, all dpatches in debian/patches/00list up to and including basepatch will be
applied to the working tree. If basepatch is not supplied, no dpatches are applied to the working tree.
When then developer exits the shell, dpatch-edit-patch will create dpatchname. If
debian/patches/00template does not exist, a hardcoded dpatch header and shell snippet will be used. If it
exists and is not executable, it will be copied verbatim as the header and shell snippet.

Its first parameter is the base filename of the to-be-updated or to-be-created dpatch (useful for adding
titles to the dpatch header). Its second parameter will be the description of the new patch.

OPTIONS
For the following options, command-line arguments take precedence over environment variables, which take
precedence over configuration variables. Configuration variables are read from
debian/patches/00dpatch.conf and ~/.dpatch.conf.

-s, --sourcedir=value
Directory containing unpacked Debian source package. Configuration variable conf_sourcedir
(settable only in ~/.dpatch.conf), environment variable DPEP_SOURCEDIR. Defaults to the current
working directory.

-o, --outdir=value
Directory where the updated or newly-created dpatch will be placed. Configuration variable
conf_outdir (~/.dpatch.conf), environment variable DPEP_OUTDIR. Defaults to ./debian/patches/

-c, --clean
Indicate to dpatch-edit-patch that the current work directory can safely be cleaned. If not given,
dpatch-edit-patch tries to preserve partial or complete builds by first copying the current work
directory to a reference directory before invoking debian/rules clean on the reference directory.
If given, the current directory is cleaned and then taken as a reference directory. Use this
option if your source package is pretty large and no significant work is destroyed by cleaning.
Configuration variable conf_clean (~/.dpatch.conf), Environment variable DPEP_CLEAN.

-b, --debianonly[=path]
Indicate to dpatch-edit-patch that the current work directory only contains a debian subdirectory
and that an upstream tarball is to be unpacked in the reference directory before copying the
current work directory there. The optional argument is the path to the upstream tarball -
including the tarball name. If no value is given, dpatch-edit-patch will use the hook script
pointed to by conf_getorigtargz (~/.dpatch.conf) or DPEP_GETORIGTARGZ to obtain the upstream
tarball. The hook script should take one argument: the destination directory where the fetched
archive shall be put. Configuration variables: conf_debianonly (debian/patches/00dpatch.conf) and
conf_origtargz (~/.dpatch.conf), Environment Variables DPEP_DEBIANONLY and DPEP_ORIGTARGZ.

-P, --origtargzpath=path
When -b is in use, specify the path where upstream tarballs should be looked for. path is a
colon-separated list of directories. Configuration variables: conf_origtargzpath
(~/.dpatch.conf), Environment Variables DPEP_ORIGTARGZPATH.

-r, --rootcmd=value
Command used to gain root privileges used to clean DPEP_SOURCEDIR. Configuration variable
conf_rootcmd, environment variable DPEP_ROOTCMD. Defaults to fakeroot, if installed. If none of
the above are specified, and fakeroot is not installed, dpatch-edit-patch will abort. The dpatch
authors strongly recommend the use of fakeroot for this purpose.

-d, --description=value
Description used for a newly-created patch. Configuration variable conf_newdesc (~/.dpatch.conf),
environment variable DPEP_NEWDESC, defaults to “No description.”

-k, --keeptemp=value
Boolean value, either 0 or 1. Configuration variable conf_keeptemp (~/.dpatch.conf), environment
variable DPEP_KEEPTEMP. When set to 1, temporary working tree is not deleted when
dpatch-edit-patch is done.

-t, --tmpdir=value
Temporary directory within which dpatch-edit-patch will create the working source tree.
Configuration variable conf_tmpdir (~/.dpatch.conf), environment variable DPEP_TMPDIR. Should none
of the above be set, dpatch-edit-patch will first attempt to use the environment variable TMPDIR,
and will fall back to /tmp.

-p, --stampdir=value
The directory dpatch has used for creating patch stamps. Used for checking if patch to be edited
is already applied to the working tree. Configuration variable conf_stampdir (~/.dpatch.conf),
environment variable DPEP_STAMPDIR. Should none of the above be set, dpatch-edit-patch will fall
back to debian/patched

-e, --exclude=valuelist
Space-separated list of file- and directory names that dpatch-edit-patch will exclude from being
copied and diffed. Configuration variable conf_exclude (~/.dpatch.conf), environment variable
DPEP_EXCLUDE. Defaults to "CVS .svn .git .arch .hg _darcs .bzr", which might cause you trouble if
you use files named like that in your package.

-O, --diffopts=valuelist
Extra options to directly pass to diff as-is. Configuration variable conf_diffopts
(~/.dpatch.conf), environment variable DPEP_DIFF_OPTIONS. It is empty by default.

-l, --shell=shell
Tell dpatch-edit-patch which shell to invoke. Configuration variable conf_shell (~/.dpatch.conf),
environment variable DPEP_SHELL, defaulting to $SHELL and the user's default shell.

-n, --notimestamp
Tell dpatch-edit-patch to remove timestamps from the diffs it generates. Can also be set in
debian/patches/00options, with the DPEP_OMIT_TIMESTAMPS variable.

-0, --add2list
add the new patch to 00list file.

-a, --applyall
apply all available patches.

EXAMPLES

   Create a new patch to be applied after an existing patch.
       To create a new patch, to be applied after an existing patch 90_ctrlkeyfix:

       $ dpatch-edit-patch patch 95_newupstreamfix 90_ctrlkeyfix
       dpatch-edit-patch: * debian/patches/95_newupstreamfix.dpatch does not exist, it will be created as a new dpatch.
       dpatch-edit-patch: * Cleaning /home/david/temp/sopwith-1.6.0
        ...
       dpatch-edit-patch: * Applying patches
       dpatch-edit-patch: ** Applying patch 90_ctrlkeyfix ... applied cleanly.
       dpatch-edit-patch: * Copying /home/david/temp/sopwith-1.6.0 to work directory.
        ...
       $ editor files
       $ exit 0
       dpatch-edit-patch: * Creating new patch debian/patches/95_newupstreamfix.dpatch
       dpatch-edit-patch: Warning: debian/patches/00template does not exist, using hardcoded default.
       dpatch-edit-patch: debian/patches/95_newupstreamfix.dpatch created.

   Create a new patch not depending on existing patches
       To create a new patch, intended to be applied before any other patches (or  a  new  patch  which  doesn't
       require other patches to be applied first):

       $ dpatch-edit-patch 10_debianstrings
       dpatch-edit-patch: * debian/patches/10_debianstrings.dpatch does not exist, it will be created as a new dpatch.
       dpatch-edit-patch: * Cleaning /home/david/temp/sopwith-1.6.0
        ...
       dpatch-edit-patch: Warning: * No base-patch supplied, not applying any patches.
       dpatch-edit-patch: * Copying /home/david/temp/sopwith-1.6.0 to work directory.
        ...
       $ editor files
       $ exit 0
        ...
       dpatch-edit-patch: * Creating new patch debian/patches/10_debianstrings.dpatch
       dpatch-edit-patch: Warning: debian/patches/00template does not exist, using hardcoded default.
       dpatch-edit-patch: debian/patches/10_debianstrings.dpatch created.

   Edit an existing patch:
       $ dpatch-edit-patch 10_debianstrings
       dpatch-edit-patch: * debian/patches/10_debianstrings.dpatch exists, this patch will be updated.
       dpatch-edit-patch: * Cleaning /home/david/temp/sopwith-1.6.0
        ...
       dpatch-edit-patch: * Applying patches
       dpatch-edit-patch: * Copying /home/david/temp/sopwith-1.6.0 to work directory.
       dpatch-edit-patch: * Applying current 10_debianstrings for editing.
        ...
       $ editor files
       $ exit 0
       dpatch-edit-patch: Updating patch debian/patches/10_debianstrings.dpatch
       dpatch-edit-patch: @DPATCH@ tag found, preserving dpatch header.
       dpatch-edit-patch: debian/patches/10_debianstrings.dpatch updated.

NOTES

       dpatch-edit-patch  uses  the  DEBFULLNAME  environment variable as the author's name. If it is unset, the
       author name will be left blank.

       dpatch-edit-patch determines the author's email address for new patches using the following algorithm:
       1) Should the DEBEMAIL environment variable exist, it is always used.
       2) If the EMAIL environment variable exists, it will be used when DEBEMAIL does not exist.
       3) Should neither of the first two attempts succeed, the email will be constructed using the  login  name
       of the user running dpatch-edit-patch combined with the output of hostname -f.

       When  dpatch-edit-patch  sets  up a reference or a working directory, it dereferences all symlinks in the
       source. That allows relative links to continue working, and allows changes only to a single file and  not
       to  the  linked file and the link target. If you use dpatch-edit-patch on source trees that have symbolic
       links, you might end up with a patch that is unapplyable to the original tree.

FILES

       debian/patches/00dpatch.conf, ~/.dpatch.conf.

AUTHOR

       This manual page was written by David B Harris  <david@eelf.ddts.net>  and  modified  in  the  course  of
       development  by Gergely Nagy <algernon@debian.org>, Marc Haber <mh+debian-packages@zugschlus.de>, Stefano
       Zacchiroli <zack@debian.org>, and Junichi Uekawa <dancer@debian.org>.

DPATCH                                             23 Oct 2011                              DPATCH-EDIT-PATCH(1)