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Example: packaging leap_cli and dependencies
============================================

Determine dependencies
----------------------

First, in a *fresh* vagrant box with *sid* and *testing* in the `sources.list`:

    sudo apt-get install rubygems gem2deb
    sudo gem install leap_cli

Then we get the dependencies and build all packages:

    dependencies=" `gem list | cut -d '(' -f 1` "

Which currently gives us the following result:

* activemodel
* activesupport
* base32
* blockenspiel
* builder
* capistrano
* colored
* command_line_reporter
* gli
* gpgme
* highline
* i18n
* json
* json_pure
* leap_cli
* mini_portile
* minitest
* net-scp
* net-sftp
* net-ssh
* net-ssh-gateway
* paint
* tee
* thread_safe
* tzinfo
* versionomy
* ya2yaml

Gem cleanup:

    sudo gem uninstall $dependencies

Check existing dependencies:

    for item in $dependencies; do
      package=ruby-"`echo $item | sed -e 's/_/-/'`"
      packages="$packages $package"
    done

    apt-get install --dry-run $packages

Then:

* Check for non-existing packages.
* Try different package names.
* Update your list of existing `$packages`.

In this example we have the following `$already_ported` dependencies:

* capistrano
* ruby-activemodel
* ruby-activesupport
* ruby-blockenspiel
* ruby-builder
* ruby-colored
* ruby-gpgme
* ruby-highline
* ruby-i18n
* ruby-json
* ruby-minitest
* ruby-net-scp
* ruby-net-sftp
* ruby-net-ssh
* ruby-net-ssh-gateway
* ruby-paint
* ruby-thread-safe
* ruby-tzinfo
* ruby-versionomy

That means the following `$gems` needs to be packaged:

* base32
* command_line_reporter
* gli
* json_pure (we can just use ruby-json and ignore this dependenc)
* leap_cli
* mini_portile
* tee
* ya2yaml

In summary, we need to port the following `$new_packages`:

* ruby-base32
* ruby-command-line-reporter
* ruby-gli
* ruby-mini-portile
* ruby-tee
* ruby-ya2yaml
* ruby-leap-cli

Build remaining packages
------------------------

    for gem in $gems; do
      gem2deb $gem
    done

Getting the source for the existing packages
--------------------------------------------

    for package in $already_ported; do
      apt-get -t jessie source --download-only $package
      dpkg-source -x $package*dsc
    done

Next steps
----------

* Fix `debian/control` and other `FIXME` on each package.
* Put `debian/` folder in a `debian` branch on each source.
* Fix [tests](https://wiki.debian.org/Teams/Ruby/Packaging/Tests).
* [Other best practices](https://wiki.debian.org/Teams/Ruby/RubyExtras/UpstreamDevelopers).
* [Review the code](https://manual.sarava.org/specs/code/).
* Automate building with pbuilder for `sid`.
* Fix lintian warnings.
* Upstream pull requests.
* Backport everything to `wheezy`.

Per-package tasks
-----------------

* ruby-faker:
  * https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=765124
  * https://github.com/rails/rails/issues/13164
* ruby-leap-cli:
  * rename do `leap-cli`.
  * file conflict:
    * https://leap.se/code/issues/6374
    * https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=673577
    * https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=677724
  * workflow:

    git checkout develop
    git archive --prefix=leap-cli-1.5.6/ --format=tar HEAD | bzip2 > ../tarballs/leap-cli-1.5.6.tar.bz2
    git checkout debian
    git-buildpackage --git-ignore-branch

  * cleanup:

    debian/leap-cli/usr/lib/ruby/vendor_ruby/leap_cli.rb: require 'rubygems'
    Found some 'require rubygems' without overrides (see above).
    ERROR: Test "require-rubygems" failed. Exiting.