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dh

NAME

dh - debhelper command sequencer

SYNOPSIS

dh sequence [--with addon[,addon,...]] [--until cmd] [--before cmd] [--after cmd] [--remaining] [debhelper options]

DESCRIPTION

dh runs a sequence of debhelper commands. The supported sequences correspond to the targets of a debian/rules file: ``build'', ``clean'', ``install'', ``binary-arch'', ``binary-indep'', and ``binary''.

Commands in the binary-indep sequence are passed the ``-i'' option to ensure they only work on binary independent packages, and commands in the binary-arch sequences are passed the ``-a'' option to ensure they only work on architecture dependent packages.

Each debhelper command will record when it's successfully run in debian/package.debhelper.log. (Which dh_clean deletes.) So dh can tell which commands have already been run, for which packages, and skip running those commands again.

Each time dh is run, it examines the log, and finds the last logged command that is in the specified sequence. It then continues with the next command in the sequence. The --until, --before, --after, and --remaining options can override this behavior.

If debian/rules contains a target with a name like "override_dh_command", then when it gets to that command in the sequence, dh will run that target from the rules file, rather than running the actual command. The override target can then run the command with additional options, or run entirely different commands instead. (Note that to use this feature, you should Build-Depend on debhelper 7.0.50 or above.)

OPTIONS

--with addon[,addon,...]

Add the debhelper commands specified by the given addon to appropriate places in the sequence of commands that is run. This option can be repeated more than once, or multiple addons can be listed, separated by commas. This is used when there is a third-party package that provides debhelper commands. See the PROGRAMMING file for documentation about the sequence addon interface.

--without addon

The inverse of --with, disables using the given addon.

--until cmd

Run commands in the sequence until and including cmd, then stop.

--before cmd

Run commands in the sequence before cmd, then stop.

--after cmd

Run commands in the sequence that come after cmd.

--remaining

Run all commands in the sequence that have yet to be run.

All other options passed to dh are passed on to each command it runs. This can be used to set an option like ``-v'' or ``-X'' or ``-N'', as well as for more specialised options.

COMMAND SPECIFICATION

cmd can be a full name of a debhelper command, or a substring. It'll first search for a command in the sequence exactly matching the name, to avoid any ambiguity. If there are multiple substring matches, the last one in the sequence will be used.

EXAMPLES

To see what commands are included in a sequence, without actually doing anything:

         dh binary-arch --no-act
 
 

This is a very simple rules file, for packages where the default sequences of commands work with no additional options.

         #!/usr/bin/make -f
         %:
                 dh $@
 
 

Often you'll want to pass an option to a specific debhelper command. The easy way to do with is by adding an override target for that command.

         #!/usr/bin/make -f
         %:
                 dh $@
 
         override_dh_strip:
                 dh_strip -Xfoo
                 
         override_dh_installdocs:
                 dh_installdocs README TODO
 
 

Sometimes the automated dh_auto_configure and dh_auto_build can't guess what to do for a strange package. Here's how to avoid running either and instead run your own commands.

         #!/usr/bin/make -f
         %:
                 dh $@
 
         override_dh_auto_configure:
                 ./mondoconfig
 
         override_dh_auto_build:
                 make universe-explode-in-delight
 
 

Another common case is wanting to do something manually before or after a particular debhelper command is run.

         #!/usr/bin/make -f
         %:
                 dh $@
 
         override_dh_fixperms:
                 dh_fixperms
                 chmod 4755 debian/foo/usr/bin/foo
 
 

If your package is a python package, dh will use dh_pysupport by default. This is how to use dh_pycentral instead.

         #!/usr/bin/make -f
         %:
                 dh --with python-central $@
 
 

To patch your package using quilt, you can tell dh to use quilt's dh sequence addons like this:

         #!/usr/bin/make -f
         %:
                 dh --with quilt $@
 
 

SEE ALSO

debhelper(7)

This program is a part of debhelper.

AUTHOR

Joey Hess <joeyh@debian.org>