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====== cowbuilder: Creating a proper image to build a package ======

**Description:** When packaging with cowbuilder, each time you want to build, all needed packages have to been configured. This recipe shows how to prepare a cowbuilder base to do all this configurations only once.

**Language(s):** english

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Copy a basic image (or create it with sudo cowbuilder --create):

  $ sudo cp -a /var/cache/pbuilder/base.cow /var/cache/pbuilder/base-PKGNAME.cow

Start a session within this image telling cowbuilder that all changes will be saved:

  $ sudo cowbuilder --login --basepath /var/cache/pbuilder/base-PKGNAME.cow --save-after-login

Once inside the image, enable package sources:

  # sed -i 's/#\(deb-src .*\)/\1/g' /etc/apt/sources.list
  # aptitude update

Install build dependencies of the package:

  # aptitude build-dep PKGNAME
  
Logout:

  # exit
  
Now, to use this image for building:

  $ sudo cowbuilder --build PKGNAME_VERSION.dsc --basepath /var/cache/pbuilder/PKGNAME.cow
  
If you use git-buildackage:

  $ gbp buildpackage --git-pbuilder --git-dist='PKGNAME'
  
If you want to use this last command, your image must have the prefix 'base-' (see [[http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=721444|#721444]])