Bruno Cornec > ProjectBuilder > ProjectBuilder::Distribution

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NAME ^

ProjectBuilder::Distribution, part of the project-builder.org - module dealing with distribution detection

DESCRIPTION ^

This modules provides functions to allow detection of Linux distributions, and giving back some attributes concerning them.

SYNOPSIS ^

  use ProjectBuilder::Distribution;

  # 
  # Return information on the running distro
  #
  my $pbos = pb_distro_get_context();
  print "distro tuple: ".Dumper($pbos->name, $pbos->ver, $pbos->fam, $pbos->type, $pbos->pbsuf, $pbos->pbupd, $pbos->pbins, $pbos->arch)."\n";
  # 
  # Return information on the requested distro
  #
  my $pbos = pb_distro_get_context("ubuntu-7.10-x86_64");
  print "distro tuple: ".Dumper($pbos->name, $pbos->ver, $pbos->fam, $pbos->type, $pbos->pbsuf, $pbos->pbupd, $pbos->pbins, $pbos->arch)."\n";
  # 
  # Return information on the running distro
  #
  my ($ddir,$dver) = pb_distro_get();

USAGE ^

pb_distro_conffile

This function returns the mandatory configuration file used for distribution/OS detection

pb_distro_init

This function returns a hash of parameters indicating the distribution name, version, family, type of build system, suffix of packages, update command line, installation command line and architecture of the underlying Linux distribution. The value of the fields may be "unknown" in case the function was unable to recognize on which distribution it is running.

As an example, Ubuntu and Debian are in the same "du" family. As well as RedHat, RHEL, CentOS, fedora are on the same "rh" family. Mandriva, Open SuSE and Fedora have all the same "rpm" type of build system. Ubuntu and Debian have the same "deb" type of build system. And "fc" is the extension generated for all Fedora packages (Version will be added by pb). All this information is stored in an external configuration file typically at /etc/pb/pb.conf

When passing the distribution name and version as parameters, the pb_distro_init function returns the parameter of that distribution instead of the underlying one.

Cf: http://linuxmafia.com/faq/Admin/release-files.html Ideas taken from http://search.cpan.org/~kerberus/Linux-Distribution-0.14/lib/Linux/Distribution.pm

pb_distro_get

This function returns a list of 2 parameters indicating the distribution name and version of the underlying Linux distribution. The value of those 2 fields may be "unknown" in case the function was unable to recognize on which distribution it is running.

On my home machine it would currently report ("mandriva","2010.2").

pb_distro_getlsb

This function returns the 5 lsb values LSB version, distribution ID, Description, release and codename. As entry it takes an optional parameter to specify whether the output is short or not.

pb_distro_installdeps

This function install the dependencies required to build the package on a distro. Dependencies can be passed as a parameter in which case they are not computed

pb_distro_getdeps

This function computes the dependencies indicated in the build file and return them as a string of packages to install

pb_distro_only_deps_needed

This function returns only the dependencies not yet installed

pb_distro_setuposrepo

This function sets up potential additional repository for the setup phase

pb_distro_setuprepo

This function sets up potential additional repository to the build environment

pb_distro_setuprepo_gen

This function sets up in a generic way potential additional repository

pb_distro_to_keylist

Given a pbos object (first param) and the generic key (second param), get the list of possible keys for looking up variable for filter names. The list will be sorted most-specific to least specific.

pb_distro_get_param

This function gets the parameter in the conf file from the most precise tuple up to default

pb_distro_get_context

This function gets the OS context passed as parameter and return the corresponding distribution hash If passed undef or "" then auto-detects

WEB SITES ^

The main Web site of the project is available at http://www.project-builder.org/. Bug reports should be filled using the trac instance of the project at http://trac.project-builder.org/.

USER MAILING LIST ^

None exists for the moment.

AUTHORS ^

The Project-Builder.org team http://trac.project-builder.org/ lead by Bruno Cornec mailto:bruno@project-builder.org.

COPYRIGHT ^

Project-Builder.org is distributed under the GPL v2.0 license described in the file COPYING included with the distribution.

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