Module: Melai::PackageHelpers

Defined in:
lib/melai/package_helpers.rb

Overview

This module provides some package helper methods

Instance Method Summary collapse

Instance Method Details

#package_metadata(package_path, repositories_path) ⇒ Object

Return an array of package metadata hashes. Each array element describes a particular repository that this package should be a member of.



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# File 'lib/melai/package_helpers.rb', line 15

def package_metadata(package_path, repositories_path)
  case File.extname(package_path)
  when '.rpm'
    return rpm_package_metadata(package_path, repositories_path)
  when '.deb'
    if File.fnmatch('*ubuntu*', package_path)
      return ubuntu_package_metadata(package_path, repositories_path)
    else File.fnmatch('*debian*', package_path)
      return debian_package_metadata(package_path, repositories_path)
    end
  end
end

#repo_template(metadata, repositories_path, url_root) ⇒ Object 



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# File 'lib/melai/package_helpers.rb', line 28

def repo_template(metadata, repositories_path, url_root)
  repository_path = metadata[:repository_path]
  case repository_path
  when /redhat/
    source = "redhat.repo.erb"
    target = "10gen.repo"
    url_path = File.join(metadata[:repository_prefix], metadata[:variant], metadata[:arch])
  else
    source = "debian.list.erb"
    target = "10gen.list"
    url_path = File.join(metadata[:repository_prefix])
  end

  here = File.dirname(__FILE__)
  template = ERB.new(File.read(File.join(here, "..", "..", "templates", source)))
  output = File.new(File.join(repository_path, target), "w")
  output.write(template.result(binding))
end

#update_repo_metadata(metadata, repositories_path, packages_path) ⇒ Object 



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# File 'lib/melai/package_helpers.rb', line 47

def update_repo_metadata(metadata, repositories_path, packages_path)
  repository_path = metadata[:repository_path]

  # e.g /data/packages/cache/debian-sysvinit/dists/
  cache_path = File.join(packages_path, "cache", metadata[:repository_prefix])
  ensure_directory(cache_path)

  case repository_path
  when /redhat/
    begin
      # e.g. repo/redhat/2.0/x86_64/
      variant_dir = File.join(repositories_path,
        metadata[:repository_prefix],
        metadata[:variant],
        metadata[:arch])

      shell_out("createrepo --pretty -c #{cache_path} #{variant_dir}")
    rescue Exception=>e
      exit_now!("Could not complete createrepo:\n#{e}", 1)
    end

  else
    # Do Debian-style repo builds
    here = File.dirname(__FILE__)
    fileloc = File.join(here, "../..", "templates", "apt-ftparchive.conf.erb")
    template = ERB.new(File.read(fileloc))
    output = Tempfile.new("apt-ftparchive.conf")
    output.write(template.result(binding))
    output.close()

    begin
      # Generates the Packages, Contents files
      shell_out("apt-ftparchive generate #{output.path}")

      # Generate the Release files on stdout
      variant_dir = File.join(repositories_path,
        metadata[:repository_prefix],
        "dists",
        metadata[:variant])

      result = shell_out("apt-ftparchive -c #{output.path} release #{variant_dir}")

      # Dump the Release stdout to a Release file
      release_file = File.join(variant_dir, "Release.new")
      File.open(release_file, "w").write(result.stdout)
      # This ensures that the Release file is not included within itself
      File.rename(release_file, File.join(variant_dir, "Release"))

      # TODO: GPG Sign the Release file

    rescue Exception=>e
      exit_now!("Could not complete apt-ftparchive:\n#{e}", 1)
    end
  end
end