Class: Pkg::Config

Inherits:
Object
  • Object
show all
Defined in:
lib/packaging/config.rb

Overview

This class is meant to encapsulate all of the data we know about a build invoked with rake package:<build> or rake pl:<build>. It can read in this data via a yaml file, have it set via accessors, and serialize it back to yaml for easy transport.

Class Method Summary collapse

Class Method Details

.apt_target_path(feature_branch = false) ⇒ Object 



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# File 'lib/packaging/config.rb', line 389

def apt_target_path(feature_branch = false)
  target_path = "#{Pkg::Config.apt_repo_path}/#{Pkg::Config.pe_version}"
  # Target path is different for feature (PEZ) or release branches
  if feature_branch || Pkg::Config.pe_feature_branch
    return "#{target_path}/feature/repos/"
  elsif Pkg::Config.pe_release_branch
    return "#{target_path}/release/repos/"
  else
    return "#{target_path}/repos/"
  end
end

.config(args = { :target => nil, :format => :hash }) ⇒ Object

By default return a hash of the names, values of current Pkg::Config instance variables. With :format => :yaml, write a yaml file containing the current names,values of Pkg::Config class instance variables



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# File 'lib/packaging/config.rb', line 62

def config(args = { :target => nil, :format => :hash })
  case args[:format]
    when :hash
      self.config_to_hash
    when :yaml
      self.config_to_yaml(args[:target])
  end
end

.config_from_hash(data = {}) ⇒ Object

Take a hash of Config parameters, and iterate over them, setting the value for each Config param to the corresponding hash key,value.



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# File 'lib/packaging/config.rb', line 38

def config_from_hash(data = {})
  data.each do |param, value|
    if Pkg::Params::BUILD_PARAMS.include?(param.to_sym)
      self.instance_variable_set("@#{param}", value)
    else
      warn "Warning - No build data parameter found for '#{param}'. Perhaps you have an erroneous entry in your yaml file?"
    end
  end
end

.config_from_yaml(file) ⇒ Object

Load a yaml file and use its contents to set the values for Pkg::Config class instance variables



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# File 'lib/packaging/config.rb', line 52

def config_from_yaml(file)
  build_data = Pkg::Util::Serialization.load_yaml(file)
  config_from_hash(build_data)
end

.config_to_hash ⇒ Object

Return a hash of all build parameters and their values, nil if unassigned.



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# File 'lib/packaging/config.rb', line 130

def config_to_hash
  data = {}
  Pkg::Params::BUILD_PARAMS.each do |param|
    data.store(param, self.instance_variable_get("@#{param}"))
  end
  data.store(:platform_data, platform_data)
  data
end

.config_to_yaml(target = nil) ⇒ Object

Write all build parameters to a yaml file, either one specified or in a temporary location. Print the path to the file and return it as a string. Accept an argument for the write target file. If not specified, the name of the params file is the current git commit sha or tag.



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# File 'lib/packaging/config.rb', line 145

def config_to_yaml(target = nil)
  file = "#{self.ref}.yaml"
  target = target.nil? ? File.join(Pkg::Util::File.mktemp, "#{self.ref}.yaml") : File.join(target, file)
  Pkg::Util::File.file_writable?(File.dirname(target), :required => true)
  File.open(target, 'w') do |f|
    f.puts self.config_to_hash.to_yaml
  end
  puts target
  target
end

.cow_list ⇒ Object

Return the names of all of the cows for the project, taking off the base prefix, the architecture, and the .cow suffix. This is helpful in the debian changelog.



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# File 'lib/packaging/config.rb', line 168

def cow_list
  self.cows.split(' ').map do
    |cow| cow.split('-')[1]
  end.uniq.join(' ')
end

.cow_to_codename_arch(cow) ⇒ Object

This method is duplicated from enterprise-dist so we can access it here.



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# File 'lib/packaging/config.rb', line 343

def cow_to_codename_arch(cow)
  /^base-(.*)-(.*)\.cow$/.match(cow).captures
end

.deb_build_targets ⇒ Object 



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# File 'lib/packaging/config.rb', line 355

def deb_build_targets
  if self.vanagon_project
    self.deb_targets.split(' ')
  else
    self.cows.split(' ').map do |cow|
      codename, arch = self.cow_to_codename_arch(cow)
      "#{codename}-#{arch}"
    end
  end
end

.default_packaging_root ⇒ Object 



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# File 'lib/packaging/config.rb', line 181

def default_packaging_root
  # Assume that PACKAGING_ROOT has been set, or set the PACKAGING_ROOT to
  # one directory above the LIBDIR
  #
  defined?(PACKAGING_ROOT) ? File.expand_path(PACKAGING_ROOT) : File.expand_path(File.join(LIBDIR, ".."))
end

.default_project_root ⇒ Object 



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# File 'lib/packaging/config.rb', line 174

def default_project_root
  # Assume that either PROJECT_ROOT has been set, or we're running from the
  # project root
  #
  ENV['PROJECT_ROOT'] || Dir.pwd
end

.get_binding ⇒ Object

Return the binding of class context. Used for erb templates.



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# File 'lib/packaging/config.rb', line 30

def get_binding
  return binding
end

.instance_values ⇒ Object

Returns a hash with string keys that maps instance variable names without "@"" to their corresponding values.



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# File 'lib/packaging/config.rb', line 16

def instance_values
  Hash[instance_variables.map { |name| [name[1..-1], instance_variable_get(name)] }]
end

.issue_deprecations ⇒ Object

Quite a few variables we also want to issue custom warnings about. These are they.



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# File 'lib/packaging/config.rb', line 328

def issue_deprecations
  Pkg::Params::DEPRECATIONS.each do |v|
    if self.instance_variable_get("@#{v[:var]}")
      warn v[:message]
    end
  end
end

.issue_reassignments ⇒ Object

We also have renamed various variables as part of deprecations, and if any of these are still in use, we want to assign the values to the new variables. However, we skip this if they target variable is already populated, to avoid overwriting in the case that the user has started by populating the new variable name but left the old crufty one behind.



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# File 'lib/packaging/config.rb', line 314

def issue_reassignments
  Pkg::Params::REASSIGNMENTS.each do |v|
    oldval = self.instance_variable_get("@#{v[:oldvar]}")
    newval = self.instance_variable_get("@#{v[:newvar]}")
    if newval.nil? && oldval
      self.instance_variable_set("@#{v[:newvar]}", oldval)
    end
  end
end

.load_default_configs ⇒ Object 



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# File 'lib/packaging/config.rb', line 188

def load_default_configs
  got_config = false
  default_project_data = { :path => File.join(@project_root, "ext", "project_data.yaml"), :required => false }
  default_build_defaults = { :path => File.join(@project_root, "ext", "build_defaults.yaml"), :required => true }

  [default_project_data, default_build_defaults].each do |config|
    if File.readable? config[:path]
      self.config_from_yaml(config[:path])
      got_config = true if config[:required]
    else
      puts "Skipping load of expected default config #{config[:path]}, cannot read file."
    end
  end

  if got_config
    self.config
  else
    # Since the default configuration files are not readable, most
    # likely not present, at this point we assume the project_root
    # isn't what we hoped it would be, and unset it.
    @project_root = nil
  end
end

.load_defaults ⇒ Object

We supply several values by default, if they haven't been specified already by config or environment variable. This includes the project root as the default project root, which is relative to the packaging path



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# File 'lib/packaging/config.rb', line 269

def load_defaults
  @project_root   ||= default_project_root
  @packaging_root ||= default_packaging_root

  Pkg::Params::DEFAULTS.each do |v|
    unless self.instance_variable_get("@#{v[:var]}")
      self.instance_variable_set("@#{v[:var]}", v[:val])
    end
  end
end

.load_envvars ⇒ Object

Since we're dealing with rake, much of the parameter override support is via environment variables passed on the command line to a rake task. These override any existing values of Pkg::Config class instance variables



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# File 'lib/packaging/config.rb', line 248

def load_envvars
  Pkg::Params::ENV_VARS.each do |v|
    if var = ENV[v[:envvar].to_s]
      case v[:type]
      when :bool
        self.instance_variable_set("@#{v[:var]}", Pkg::Util.boolean_value(var))
      when :array
        self.instance_variable_set("@#{v[:var]}", string_to_array(var))
      else
        self.instance_variable_set("@#{v[:var]}", var)
      end
    end
  end
end

.load_overrides ⇒ Object

Several workflows rely on being able to supply an optional yaml parameters file that overrides all set values with its data. This has always been supplied as an environment variable, "PARAMS_FILE." To honor this, we have a method in config to override values as expected. There is, however, a twist - it is absolutely essential that the overrides do not override the project_root or packaging_root settings, because this is environment-specific, and any value in a params file is going to be wrong. Thus, if we have a project root or packaging root before we begin overriding, we save it and restore it after overrides.



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# File 'lib/packaging/config.rb', line 293

def load_overrides
  if ENV['PARAMS_FILE'] && ENV['PARAMS_FILE'] != ''
    if File.readable?(ENV['PARAMS_FILE'])
      project_root = self.instance_variable_get("@project_root")
      packaging_root = self.instance_variable_get("@packaging_root")
      self.config_from_yaml(ENV['PARAMS_FILE'])
      self.instance_variable_set("@project_root", project_root) if project_root
      self.instance_variable_set("@packaging_root", packaging_root) if packaging_root
    else
      fail "PARAMS_FILE was set, but not to the path to a readable file."
    end
  end
end

.load_versioning ⇒ Object

Set all aspects of how the package will be versioned. Versioning relies exclusively on the git describe of the project, which will fail if either Pkg::Config.project_root is nil, isn't in a git repo, or is in a git repo, but there are no tags in the repo, in which case git-describe will fail.

It probably seems odd to load packaging-specific version
determinations, such as rpmversion here, at the top-level, and it is.
The reason for this that the creation of the most basic package
composition, the tarball, includes the generation of many different
packaging-specific files from templates in the source, and if faced
with loading rpmversion in the Tar object vs rpmversion in the
Config, I opt for the latter. It's basically a lose-lose, since it
really belongs in the Rpm object.


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# File 'lib/packaging/config.rb', line 227

def load_versioning
  if @project_root and Pkg::Util::Git.describe
    @ref         = Pkg::Util::Git.sha_or_tag
    @short_ref   = Pkg::Util::Git.sha_or_tag(7)
    @version     = Pkg::Util::Version.dash_version
    @gemversion  = Pkg::Util::Version.dot_version
    @debversion  = Pkg::Util::Version.debversion
    @origversion = Pkg::Util::Version.origversion
    @rpmversion  = Pkg::Util::Version.rpmversion
    @rpmrelease  = Pkg::Util::Version.rpmrelease
  else
    puts "Skipping determination of version via git describe, Pkg::Config.project_root is not set to the path of a tagged git repo."
  end
end

.mock_to_dist_version_arch(mock) ⇒ Object

This method is duplicated from enterprise-dist so we can access it here.



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# File 'lib/packaging/config.rb', line 348

def mock_to_dist_version_arch(mock)
  # We care about matching against two patterns here:
  # pupent-3.4-el5-i386 <= old style with PE_VER baked into the mock name
  # pupent-el5-i386     <= new style derived from a template
  mock.match(/pupent(-\d\.\d)?-([a-z]*)(\d*)-([^-]*)/)[2..4]
end

.platform_data ⇒ Object

For each platform we ship for, find paths to its artifact and repo_config (if applicable). This is to be consumed by beaker and later replaced with our metadata service.



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# File 'lib/packaging/config.rb', line 75

def platform_data
  if self.project && self.ref && Pkg::Util::Net.check_host_ssh([self.builds_server]).empty?
    dir = "/opt/jenkins-builds/#{self.project}/#{self.ref}"
    cmd = "if [ -s \"#{dir}/artifacts\" ]; then cd #{dir}; find ./artifacts/ -mindepth 2 -type f; fi"
    artifacts, _ = Pkg::Util::Net.remote_ssh_cmd(self.builds_server, cmd, true)
    artifacts = artifacts.split("\n")
    data = {}
    artifacts.each do |artifact|
      tag = Pkg::Paths.tag_from_artifact_path(artifact)
      platform, version, arch = Pkg::Platforms.parse_platform_tag(tag)
      arch = 'ppc' if platform == 'aix'
      package_format = Pkg::Platforms.get_attribute(tag, :package_format)

      # Skip this if it's an unversioned MSI. We create these to help
      # beaker install the msi without having to know any version
      # information, but we should report the versioned artifact in
      # platform_data
      next if platform == 'windows' && File.basename(artifact) == "#{self.project}-#{arch}.#{package_format}"
      # Sometimes we have source or debug packages. We don't want to save
      # these paths in favor of the artifact paths.
      if platform == 'solaris'
        next if version == '10' && File.extname(artifact) != '.gz'
        next if version == '11' && File.extname(artifact) != '.p5p'
      else
        next if File.extname(artifact) != ".#{package_format}"
      end
      next if /#{self.project}-[a-z]+/.match(File.basename(artifact))

      case package_format
      when 'deb'
        repo_config = "../repo_configs/deb/pl-#{self.project}-#{self.ref}-#{Pkg::Platforms.get_attribute(tag, :codename)}.list"
      when 'rpm'
        repo_config = "../repo_configs/rpm/pl-#{self.project}-#{self.ref}-#{tag}.repo" unless tag.include? 'aix'
      when 'swix', 'svr4', 'ips', 'dmg', 'msi'
        # No repo_configs for these platforms, so do nothing.
      else
        fail "Not sure what to do with packages with a package format of '#{package_format}' - maybe update PLATFORM_INFO?"
      end
      # Remove the f-prefix from the fedora platform tag keys so that
      # beaker can rely on consistent keys once we rip out the f for good
      tag = tag.sub(/fedora-f/, 'fedora-')
      data[tag] = { :artifact => artifact.sub('artifacts/', ''),
                    :repo_config => repo_config,
                  }
    end
    return data
  else
    warn "Skipping platform_data collection, but don't worry about it."
    return nil
  end
end

.print_config ⇒ Object

Print the names and values of all the params known to the build object



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# File 'lib/packaging/config.rb', line 159

def print_config
  self.config_to_hash.each { |k, v| puts "#{k}: #{v}" }
end

.rpm_build_targets ⇒ Object 



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# File 'lib/packaging/config.rb', line 366

def rpm_build_targets
  if self.vanagon_project
    self.rpm_targets.split(' ')
  else
    self.final_mocks.split(' ').map do |mock|
      platform, version, arch = self.mock_to_dist_version_arch(mock)
      "#{platform}-#{version}-#{arch}"
    end
  end
end

.string_to_array(str) ⇒ Object 



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# File 'lib/packaging/config.rb', line 336

def string_to_array(str)
  delimiters = /[,\s;]/
  return str if str.respond_to?('each')
  str.split(delimiters).reject { |s| s.empty? }.map { |s| s.strip }
end

.yum_target_path(feature_branch = false) ⇒ Object 



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# File 'lib/packaging/config.rb', line 377

def yum_target_path(feature_branch = false)
  target_path = "#{Pkg::Config.yum_repo_path}/#{Pkg::Config.pe_version}"
  # Target path is different for feature (PEZ) or release branches
  if feature_branch || Pkg::Config.pe_feature_branch
    return "#{target_path}/feature/repos/"
  elsif Pkg::Config.pe_release_branch
    return "#{target_path}/release/repos/"
  else
    return "#{target_path}/repos/"
  end
end