Class: Bosh::Gen::Generators::PackageGenerator

Inherits:
Thor::Group
  • Object
show all
Includes:
Thor::Actions
Defined in:
lib/bosh/gen/generators/package_generator.rb

Constant Summary collapse

BLOB_FILE_MIN_SIZE =

files over 20k are blobs

20_000

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.source_root ⇒ Object 



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# File 'lib/bosh/gen/generators/package_generator.rb', line 16

def self.source_root
  File.join(File.dirname(__FILE__), "package_generator", "templates")
end

Instance Method Details

#check_name ⇒ Object

Raises:

  • (Thor::Error) 


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# File 'lib/bosh/gen/generators/package_generator.rb', line 26

def check_name
  raise Thor::Error.new("'#{name}' is not a valid BOSH id") unless name.bosh_valid_id?
end

#check_root_is_release ⇒ Object 



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# File 'lib/bosh/gen/generators/package_generator.rb', line 20

def check_root_is_release
  unless File.exist?("jobs") && File.exist?("packages")
    raise Thor::Error.new("run inside a BOSH release project")
  end
end

#copy_src_files ⇒ Object

Copy the local source files into src or blobs

  • into src/NAME/filename (if < 20k) or

  • into blobs/NAME/filename (if >= 20k)

Skip a file if:

  • filename already exists as a blob in blobs/NAME/filename

  • file doesn’t exist



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# File 'lib/bosh/gen/generators/package_generator.rb', line 86

def copy_src_files
  files.each do |file|
    file_path = File.expand_path(file)
    unless File.exist?(file_path)
      say "Skipping unknown file #{file_path}", :red
      next
    end
    
    size      = File.size(file_path)
    file_name = File.basename(file_path)
    src_file  = src_dir(file_name)
    blob_file = blob_dir(file_name)
    if File.exist?(blob_file)
      say "Blob '#{file_name}' exists as a blob, skipping..."
    else
      # if < 20k, put in src/, else blobs/
      target = size >= BLOB_FILE_MIN_SIZE ? blob_file : src_file
      copy_file File.expand_path(file_path), target
    end
  end
end

#package_specification ⇒ Object 



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# File 'lib/bosh/gen/generators/package_generator.rb', line 108

def package_specification
  src_files = 
    files.map {|f| "#{name}/#{File.basename(f)}"} + # new blobs
    existing_sources_as_globs                       # existing directories, like 'myapp'
  config = { "name" => name, "dependencies" => dependencies, "files" => src_files }
  create_file package_dir("spec"), YAML.dump(config)
end

#packaging ⇒ Object 



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# File 'lib/bosh/gen/generators/package_generator.rb', line 39

def packaging
  create_file package_dir("packaging") do
    packaging = <<-SHELL.gsub(/^\s{10}/, '')
    set -e # exit immediately if a simple command exits with a non-zero status
    set -u # report the usage of uninitialized variables
    
    # Detect # of CPUs so make jobs can be parallelized
    CPUS=$(grep -c ^processor /proc/cpuinfo)

    # Available variables
    # $BOSH_COMPILE_TARGET - where this package & spec'd source files are available
    # $BOSH_INSTALL_TARGET - where you copy/install files to be included in package
    export HOME=/var/vcap
    
    
    SHELL

    language_packs.each do |package|
      packaging << "source /var/vcap/packages/#{package}/bosh/compile.env\n"
    end

    simple_dependencies.each do |package|
      packaging << "PATH=/var/vcap/packages/#{package}/bin:$PATH\n"
    end

    archives_in_files.each do |archive_type, unpack_command, archive_file, unpack_base_path|
      packaging << <<-SHELL.gsub(/^\s{12}/, '')
      
      #{unpack_command} #{name}/#{archive_file}
      cd #{unpack_base_path}
      ./configure --prefix=${BOSH_INSTALL_TARGET}
      make -j${CPUS} && make install
      # Alternatively, to copy archive contents:
      # cp -a #{unpack_base_path}/* $BOSH_INSTALL_TARGET
      SHELL
    end
    
    packaging
  end
end

#warn_missing_dependencies ⇒ Object 



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# File 'lib/bosh/gen/generators/package_generator.rb', line 30

def warn_missing_dependencies
  dependencies.each do |d|
    raise Thor::Error.new("dependency '#{d}' is not a valid BOSH id") unless d.bosh_valid_id?
    unless File.exist?(File.join("packages", d))
      say_status "warning", "missing dependency '#{d}'", :yellow
    end
  end
end