Turning CPAN modules in to deb with dh perl make

Some of our PERL tools require some CPAN modules that are not part of the standard Ubuntu distribution. It’s obviously possible to install the module using CPAN but I like using deb packages where possible as then you only have one repository to manage. Fortunately with dh-make-perl it is possible to quickly turn any CPAN module in to a debian package!

First make sure dh-make-perl is installed

apt-get install dh-make-perl

Then download the PERL module you wish to package and extract it

rus@absinthe:~$ wget http://www.cpan.org/modules/by-module/Crypt/Crypt-RC5-2.00.tar.gz
rus@absinthe:~$ tar -pzxvf Crypt-RC5-2.00.tar.gz

Now run dh-make-perl on the directory to create the files needed for the package

rus@absinthe:~$ dh-make-perl Crypt-RC5-2.00/
cat: /etc/mailname: No such file or directory
Use of uninitialized value in concatenation (.) or string at /usr/bin/dh-make-perl line 527.
Found: Crypt::RC5 2.00 (libcrypt-rc5-perl arch=all)
Package does not provide a long description - Please fill it in manually.
Using maintainer: rus
Found changelog: Changes
Found docs: README
Using rules: /usr/share/dh-make-perl/rules.MakeMaker.noxs

This will have created a debian directory

rus@absinthe:~/Crypt-RC5-2.00$ ls
Changes debian Makefile.PL MANIFEST RC5.pm README test.pl
rus@absinthe:~/Crypt-RC5-2.00$ ls debian/
changelog compat control copyright rules

Then cd in to the directory and run debuild to actually build the package

rus@absinthe:~$ cd Crypt-RC5-2.00/
rus@absinthe:~/Crypt-RC5-2.00$ debuild
This package has a Debian revision number but there does not seem to be
an appropriate original tar file or .orig directory in the parent directory;
(expected libcrypt-rc5-perl_2.00.orig.tar.gz or Crypt-RC5-2.00.orig)
continue anyway? (y/n) y
fakeroot debian/rules clean
# Add commands to clean up after the build process here
[ ! -f Makefile ] || /usr/bin/make realclean
dh_clean build-stamp install-stamp
dpkg-source -b Crypt-RC5-2.00
dpkg-source: warning: source directory './Crypt-RC5-2.00' is not - 'libcrypt-rc5-perl-2.00'
dpkg-source: building libcrypt-rc5-perl in libcrypt-rc5-perl_2.00-1.tar.gz
dpkg-source: building libcrypt-rc5-perl in libcrypt-rc5-perl_2.00-1.dsc
debian/rules build
# Add commands to compile the package here
/usr/bin/perl Makefile.PL INSTALLDIRS=vendor
Checking if your kit is complete...
Looks good
Writing Makefile for Crypt::RC5
/usr/bin/make OPTIMIZE="-Wall -O2 -g"
make[1]: Entering directory `/home/rus/Crypt-RC5-2.00'
cp RC5.pm blib/lib/Crypt/RC5.pm
Manifying blib/man3/Crypt::RC5.3pm
make[1]: Leaving directory `/home/rus/Crypt-RC5-2.00'
touch build-stamp
fakeroot debian/rules binary
dh_clean -k
# Add commands to install the package into debian/ACKAGE_NAME here
/usr/bin/make test
make[1]: Entering directory `/home/rus/Crypt-RC5-2.00'
PERL_DL_NONLAZY=1 /usr/bin/perl "-Iblib/lib" "-Iblib/arch" test.pl
# Running under perl version 5.008008 for linux
# Current time local: Fri Feb 1 16:23:07 2008
# Current time GMT: Fri Feb 1 16:23:07 2008
# Using Test.pm version 1.25
ok 1
make[1]: Leaving directory `/home/rus/Crypt-RC5-2.00'
/usr/bin/make install DESTDIR=/home/rus/Crypt-RC5-2.00/debian/libcrypt-rc5-perl PREFIX=/usr
make[1]: Entering directory `/home/rus/Crypt-RC5-2.00'
Manifying blib/man3/Crypt::RC5.3pm
Installing /home/rus/Crypt-RC5-2.00/debian/libcrypt-rc5-perl/usr/share/perl5/Crypt/RC5.pm
Installing /home/rus/Crypt-RC5-2.00/debian/libcrypt-rc5-perl/usr/share/man/man3/Crypt::RC5.3pm
make[1]: Leaving directory `/home/rus/Crypt-RC5-2.00'
# As this is a architecture independent package, we are not
# supposed to install stuff to /usr/lib. MakeMaker creates
# the dirs, we delete them from the deb:
rmdir --ignore-fail-on-non-empty --parents /home/rus/Crypt-RC5-2.00/debian/libcrypt-rc5-perl/usr/lib/perl5
touch install-stamp
dh_installdocs README
dh_installchangelogs Changes
dpkg-gencontrol: warning: unknown substitution variable ${misc:Depends}
dpkg-deb: building package `libcrypt-rc5-perl' in `../libcrypt-rc5-perl_2.00-1_all.deb'.
dpkg-genchanges: including full source code in upload
dpkg-buildpackage (debuild emulation): full upload; Debian-native package (full source is included)
Now signing changes and any dsc files...
Could not find a signing program (pgp or gpg)!
debuild: fatal error at line 1174:
running debsign failed

You should then find a nice debian package a directory above!

rus@absinthe:~/Crypt-RC5-2.00$ ls .. | grep libcrypt | grep deb

Programming Perl Programming Perl is an awesome and recommended guide to Perl.

About rus

Arrogant, narcissistic and imperatively logical. I first started coding in the mid 80s on an Amstrad 6128, entering games found in the back of Amstrad Action.After watching Hackers and falling in love with Angelina Jolie I installed Slackware 2.0 on a P200 in 1997and spent the next 6-7 years studying computery things at various colleges and universities.Several years later I can now be found in an office premises by day sat in front of a Macbook, using a Windows VM to manage Linux servers, or in a field by night, fire dancing and holding pyrotechnics casually in my hands whilst they explode.