NAME
dpatch-edit-patch - maintain dpatch patches for a Debian source package
dpatch-cowdancer-patch - a variation which uses hardlinks and cowdancer
SYNOPSIS
dpatch-edit-patch [options] command dpatchname [basepatch]
dpatch-cowdancer-patch [options] command dpatchname [basepatch]
DESCRIPTION
This manual documents the dpatch-edit-patch command and
dpatch-cowdancer-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.
dpatch-cowdancer-patch is a variation of dpatch-edit-patch which tries
to use hardlinks and cowdancer.
OPTIONS
dpatch-edit-patch and dpatch-cowdancer-patch take 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.
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 or excluding the tarball
name. If the given path is only a directory, dpatch-edit-patch
tries to determine the .orig.tar.gz tarball name from
dpkg-parsechangelog. Otherwise it will unpack and use the given
tarball. If no value is given, dpatch-edit-patch will use
dpatch-get-origtargz or the hook script pointed to by
conf_getorigtargz (~/.dpatch.conf) or DPEP_GETORIGTARGZ to
obtain the upstream tarball. The hook script should be callable
identically to dpatch-get-origtargz. 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.
-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.
--cowcmd=cow-shell
The command used as shell for dpatch-cowdancer-patch.
configuration variable conf_cowcmd, environment variable
DPEP_COWCMD.
-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 determines the author for new patches using this
algorithm:
1) Should the DEBFULLNAME environment variable exist, it is used.
2) An attempt is made to retrieve the information via the system’s
passwd database
3) If the above two attempts fail, the author’s name will be blank and
only an email address will be substituted.
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.
SEE ALSO
dpatch(1), dpatch(7), dpatch.make(7), dpatch-list-patch(1),
dpatch-get-origtargz(1), dpatch-convert-diffgz(1)
Files in /usr/share/doc/dpatch/
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>.