Class: Ploy::LocalPackage::DebBuilder

Inherits:
Object
  • Object
show all
Defined in:
lib/ploy/localpackage/debbuilder.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(opts = {}) ⇒ DebBuilder 



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# File 'lib/ploy/localpackage/debbuilder.rb', line 16

def initialize(opts = {})
  @metadata_dir = "/etc/ploy/metadata.d"
  opts.each { |k,v| instance_variable_set("@#{k}", v) } # maybe?
end

Instance Attribute Details

#branch ⇒ Object

Returns the value of attribute branch.



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# File 'lib/ploy/localpackage/debbuilder.rb', line 10

def branch
  @branch
end

#dist_dir ⇒ Object

Returns the value of attribute dist_dir.



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# File 'lib/ploy/localpackage/debbuilder.rb', line 13

def dist_dir
  @dist_dir
end

#name ⇒ Object

Returns the value of attribute name.



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# File 'lib/ploy/localpackage/debbuilder.rb', line 8

def name
  @name
end

#prefix ⇒ Object

Returns the value of attribute prefix.



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# File 'lib/ploy/localpackage/debbuilder.rb', line 14

def prefix
  @prefix
end

#sha ⇒ Object

Returns the value of attribute sha.



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# File 'lib/ploy/localpackage/debbuilder.rb', line 9

def sha
  @sha
end

#timestamp ⇒ Object

Returns the value of attribute timestamp.



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# File 'lib/ploy/localpackage/debbuilder.rb', line 11

def timestamp
  @timestamp
end

#upstart_files ⇒ Object

Returns the value of attribute upstart_files.



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# File 'lib/ploy/localpackage/debbuilder.rb', line 12

def upstart_files
  @upstart_files
end

Instance Method Details

#build_deb ⇒ Object 



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# File 'lib/ploy/localpackage/debbuilder.rb', line 21

def build_deb
  info = nil
  Dir.mktmpdir do |dir|
    mirror_dist(dir)
    write_metadata(dir)
    Tempfile.open(['postinst', 'sh']) do |file|
      write_after_install_script(file)
      ol = fpm_optlist(dir)
      ol.add("--after-install", file.path)
      puts "debug: fpm #{ol.as_string} ."
      info = eval(`fpm #{ol.as_string} .`)
    end
  end
  return info[:path]
end

#fpm_optlist(dir) ⇒ Object 



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# File 'lib/ploy/localpackage/debbuilder.rb', line 37

def fpm_optlist(dir)
  optlist = Ploy::LocalPackage::DebBuilderOptlist.new [
    { "-n" => @name },
    { "-s" => "dir" },
    { "-t" => "deb" },
    { "-a" => "all" },
    { "-C" => dir },
    { "--deb-field" => "'gitrev: #{@sha}'" },
    "-f",
    { "-v" => safeversion(@timestamp + '.' + @branch) },
  ]

  if @upstart_files then
    @upstart_files.each do | upstart |
      optlist.add("--deb-upstart", upstart)
    end
  end

  return optlist
end

#mirror_dist(dir) ⇒ Object 



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# File 'lib/ploy/localpackage/debbuilder.rb', line 62

def mirror_dist(dir)
  FileUtils.mkpath mirror_dist_target(dir)
  system("rsync -aC #{@dist_dir}/* #{mirror_dist_target(dir)}")
end

#mirror_dist_target(topdir) ⇒ Object 



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# File 'lib/ploy/localpackage/debbuilder.rb', line 67

def mirror_dist_target(topdir)
  return @prefix ? File.join(topdir, @prefix) : topdir
end

#safeversion(txt) ⇒ Object 



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# File 'lib/ploy/localpackage/debbuilder.rb', line 58

def safeversion(txt)
  return txt.gsub(/[^A-Za-z0-9\.\+]/, '')
end

#write_after_install_script(file) ⇒ Object 



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# File 'lib/ploy/localpackage/debbuilder.rb', line 71

def write_after_install_script(file)
  file.write "#!/bin/bash\n\n# this is awful\ncheck_upstart_service(){\n    status $1 | grep -q \"^$1 start\" > /dev/null\n    return $?\n}\n"
  @upstart_files.each do | upstart |
    service = File.basename(upstart)
    file.write "    if check_upstart_service \#{service}; then\n      restart \#{service}\n    else\n      start \#{service}\n    fi\n"
  end
  file.flush
end

#write_metadata(dir) ⇒ Object 



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# File 'lib/ploy/localpackage/debbuilder.rb', line 94

def write_metadata(dir)
  base = File.join(dir, @metadata_dir)
  FileUtils.mkpath(base)
  path = File.join(base, "#{@name}.yml")
  info = {
    "name"      => @name,
    "sha"       => @sha,
    "timestamp" => @timestamp,
    "branch"    => @branch, 
  }
  File.open(path, 'w') do | out |
    YAML.dump(info, out)
  end

end