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Ruby packaging
==============

See [this](https://wiki.debian.org/Teams/Ruby/Packaging).

Example: packaging leap_cli and 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, that gives us 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
* 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-json-pure
* ruby-leap-cli
* ruby-mini-portile
* ruby-tee
* ruby-ya2yaml

Build remaining packages:

    for gem in $gems; do
      gem2deb $gem
    done

Backporting existing packages:

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

Additional steps:

* Backport existing dependencies if needed.
* Fix `debian/control` and other FIXME's on each package.
* Put `debian/` folder in a `debian` branch on each source.
* [Review the code](https://manual.sarava.org/specs/code/).
* Automate building with pbuilder.
* Upstream pull requests.