Class: Bosh::Cli::ReleaseTarball

Inherits:
Object
  • Object
show all
Includes:
DependencyHelper, Validation
Defined in:
lib/cli/release_tarball.rb

Defined Under Namespace

Classes: TarballArtifact

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from DependencyHelper

#tsort_packages

Methods included from Validation

#errors, #reset_validation, #valid?, #validate

Constructor Details

#initialize(tarball_path) ⇒ ReleaseTarball

Returns a new instance of ReleaseTarball.



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# File 'lib/cli/release_tarball.rb', line 11

def initialize(tarball_path)
  @tarball_path = File.expand_path(tarball_path, Dir.pwd)
  @unpack_dir   = Dir.mktmpdir
  @jobs = []
  @packages = []

  if compiled_release?
    @packages_folder = "compiled_packages"
  else
    @packages_folder = "packages"
  end
end

Instance Attribute Details

#jobs ⇒ Object (readonly)

Returns the value of attribute jobs.



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# File 'lib/cli/release_tarball.rb', line 8

def jobs
  @jobs
end

#packages ⇒ Object (readonly)

Returns the value of attribute packages.



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# File 'lib/cli/release_tarball.rb', line 8

def packages
  @packages
end

#release_name ⇒ Object (readonly)

Returns the value of attribute release_name.



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# File 'lib/cli/release_tarball.rb', line 8

def release_name
  @release_name
end

#skipped ⇒ Object (readonly)

Mostly for tests



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# File 'lib/cli/release_tarball.rb', line 9

def skipped
  @skipped
end

#unpack_dir ⇒ Object (readonly)

Mostly for tests



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# File 'lib/cli/release_tarball.rb', line 9

def unpack_dir
  @unpack_dir
end

#version ⇒ Object (readonly)

Returns the value of attribute version.



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# File 'lib/cli/release_tarball.rb', line 8

def version
  @version
end

Instance Method Details

#affected_jobs ⇒ Object 



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# File 'lib/cli/release_tarball.rb', line 431

def affected_jobs
  []
end

#all_release_jobs_unpacked? ⇒ Boolean

verifies that all jobs in release manifest were unpacked

Returns:

  • (Boolean) 


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# File 'lib/cli/release_tarball.rb', line 96

def all_release_jobs_unpacked?
  return false if manifest_yaml['jobs'].nil?

  manifest_job_names = manifest_yaml['jobs'].map { |j| j['name'] }.sort
  unpacked_job_file_names = Dir.glob(File.join(@unpack_dir, 'jobs', '*')).map { |f| File.basename(f, '.*') }.sort
  unpacked_job_file_names == manifest_job_names
end

#compiled_release? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cli/release_tarball.rb', line 134

def compiled_release?
  manifest_yaml.has_key?('compiled_packages')
end

#convert_to_old_format ⇒ Object 



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# File 'lib/cli/release_tarball.rb', line 162

def convert_to_old_format
  step('Converting to old format',
       "Cannot extract tarball #{@tarball_path}", :fatal) do
    unpack
  end

  manifest_file = File.expand_path('release.MF', @unpack_dir)
  manifest = load_yaml_file(manifest_file)
  old_format_version = Bosh::Common::Version::ReleaseVersion.parse(manifest['version']).to_old_format
  manifest['version'] = old_format_version
  write_yaml(manifest, manifest_file)
  tmpdir = Dir.mktmpdir
  repacked_path = File.join(tmpdir, 'release-reformat.tgz')

  Dir.chdir(@unpack_dir) do
    exit_success = system("tar", "-czf", repacked_path, ".", out: "/dev/null", err: "/dev/null")
    return repacked_path if exit_success
  end
end

#create_from_unpacked(target_path) ⇒ Object

Creates a new tarball from the current contents of @unpack_dir



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# File 'lib/cli/release_tarball.rb', line 112

def create_from_unpacked(target_path)
  raise "Not unpacked yet!" unless @unpacked
  !!system("tar", "-C", @unpack_dir, "-pczf", File.expand_path(target_path), ".", out: "/dev/null", err: "/dev/null")
end

#exists? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cli/release_tarball.rb', line 117

def exists?
  File.exists?(@tarball_path) && File.readable?(@tarball_path)
end

#handle_dot_slash_prefix(target) ⇒ Object

This will [add or remove] the ‘./’ when trying to extract a specific file from archive



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# File 'lib/cli/release_tarball.rb', line 66

def handle_dot_slash_prefix(target)
  if target =~ /^\.\/.*/
    target.sub!(/^\.\//, '')
  else
    target.prepend("./")
  end
end

#job_tarball_path(name) ⇒ Object 



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# File 'lib/cli/release_tarball.rb', line 144

def job_tarball_path(name)
  return nil unless valid?
  unpack
  File.join(@unpack_dir, 'jobs', "#{name}.tgz")
end

#license ⇒ Object 



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# File 'lib/cli/release_tarball.rb', line 411

def license
  m = Psych.load(manifest)
  license = m['license']
  return nil if !license
  license['name'] = 'license'
  TarballArtifact.new(license)
end

#license_resource ⇒ Object 



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# File 'lib/cli/release_tarball.rb', line 156

def license_resource
  return nil unless valid?
  unpack
  return Resources::License.new(@unpack_dir)
end

#manifest ⇒ Object 



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# File 'lib/cli/release_tarball.rb', line 121

def manifest
  return nil unless valid?
  unpack_manifest
  File.read(File.join(@unpack_dir, "release.MF"))
end

#manifest_yaml ⇒ Object 



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# File 'lib/cli/release_tarball.rb', line 127

def manifest_yaml
  return @manifest_yaml unless @manifest_yaml.nil?
  unpack_manifest
  manifest_file = File.expand_path("release.MF", @unpack_dir)
  @manifest_yaml = load_yaml_file(manifest_file)
end

#package_tarball_path(name) ⇒ Object 



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# File 'lib/cli/release_tarball.rb', line 150

def package_tarball_path(name)
  return nil unless valid?
  unpack
  File.join(@unpack_dir, 'packages', "#{name}.tgz")
end

#perform_validation(options = {}) ⇒ Object

If sparse release is allowed we bypass the requirement of having all jobs and packages in place when we do validation. However for jobs and packages that are present we still need to validate checksums



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# File 'lib/cli/release_tarball.rb', line 232

def perform_validation(options = {})
  step("File exists and readable", "Cannot find release file #{@tarball_path}", :fatal) do
    exists?
  end

  validate_manifest if options.fetch(:validate_manifest, true)
  validate_packages(options)
  validate_jobs(options)

  print_manifest if options.fetch(:print_release_info, true)
end

#print_manifest ⇒ Object 



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# File 'lib/cli/release_tarball.rb', line 435

def print_manifest
  manifest = manifest_yaml
  say("\nRelease info")
  say("------------")

  say("Name:    #{manifest["name"]}")
  say("Version: #{manifest["version"]}")

  say("\nPackages")

  if manifest[@packages_folder].empty?
    say("  - none")
  end

  for package in manifest[@packages_folder]
    say("  - #{package["name"]} (#{package["version"]})")
  end

  say("\nJobs")

  if manifest["jobs"].empty?
    say("  - none")
  end

  for job in manifest["jobs"]
    say("  - #{job["name"]} (#{job["version"]})")
  end

  say("\nLicense")
  if manifest["license"].nil? || manifest["license"].empty?
    say("  - none")
  else
    say("  - license (#{manifest["license"]["version"]})")
  end
  nl
end

#raw_fast_unpack(target) ⇒ Object 



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# File 'lib/cli/release_tarball.rb', line 74

def raw_fast_unpack(target)
  tar_version, _, _ = Open3.capture3('tar', '--version')

  case tar_version
    when /.*gnu.*/i
      Kernel.system("tar", "-C", @unpack_dir, "-xzf", @tarball_path, "--occurrence", "#{target}", out: "/dev/null", err: "/dev/null")
    when /.*bsd.*/i
      if target[-1, 1] == "/"
        raw_unpack(target)
      else
        Kernel.system("tar", "-C", @unpack_dir, "--fast-read", "-xzf", @tarball_path, "#{target}", out: "/dev/null", err: "/dev/null")
      end
    else
      raw_unpack(target)
  end
end

#raw_unpack(target) ⇒ Object 



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# File 'lib/cli/release_tarball.rb', line 91

def raw_unpack(target)
  Kernel.system("tar", "-C", @unpack_dir, "-xzf", @tarball_path, "#{target}", out: "/dev/null", err: "/dev/null")
end

#repack(package_matches = []) ⇒ Object

Repacks tarball according to the structure of remote release Return path to repackaged tarball or nil if repack has failed



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# File 'lib/cli/release_tarball.rb', line 189

def repack(package_matches = [])
  return nil unless valid?
  unpack if upload_packages?(package_matches)

  tmpdir = Dir.mktmpdir
  repacked_path = File.join(tmpdir, "release-repack.tgz")

  manifest = load_yaml_file(File.join(@unpack_dir, "release.MF"))

  local_packages = manifest[@packages_folder]
  local_jobs = manifest["jobs"]

  @skipped = 0

  Dir.chdir(@unpack_dir) do
    local_packages.each do |package|
      say("#{package["name"]} (#{package["version"]})".ljust(30), " ")

      if  package_matches and package_matches.include?(package["sha1"]) ||
         (package["fingerprint"] &&
          package_matches.include?(package["fingerprint"]))
        say("SKIP".make_green)
        @skipped += 1
        FileUtils.rm_rf(File.join(@packages_folder, "#{package["name"]}.tgz"))
      else
        say("UPLOAD".make_red)
      end
    end

    local_jobs.each do |job|
      say("#{job["name"]} (#{job["version"]})".ljust(30), " ")
      say("UPLOAD".make_red)
    end

    return nil if @skipped == 0
    exit_success = system("tar", "-czf", repacked_path, ".", out: "/dev/null", err: "/dev/null")
    return repacked_path if exit_success
  end
end

#replace_manifest(hash) ⇒ Object 



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# File 'lib/cli/release_tarball.rb', line 138

def replace_manifest(hash)
  return nil unless valid?
  unpack
  write_yaml(hash, File.join(@unpack_dir, "release.MF"))
end

#safe_fast_unpack(target) ⇒ Object

On machines using GNU based tar command, it should be able to unpack files irrespective of the ./ prefix in the file name



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# File 'lib/cli/release_tarball.rb', line 47

def safe_fast_unpack(target)
  exit_status = raw_fast_unpack(target)
  if !exit_status
    processed_target = handle_dot_slash_prefix(target)
    exit_status = raw_fast_unpack(processed_target)
  end
  exit_status
end

#safe_unpack(target) ⇒ Object 



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# File 'lib/cli/release_tarball.rb', line 56

def safe_unpack(target)
  exit_status = raw_unpack(target)
  if !exit_status
    processed_target = handle_dot_slash_prefix(target)
    exit_status = raw_unpack(processed_target)
  end
  exit_status
end

#unpack ⇒ Object

Unpacks tarball to @unpack_dir, returns true if succeeded, false if failed



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# File 'lib/cli/release_tarball.rb', line 105

def unpack
  return @unpacked unless @unpacked.nil?
  exit_success = system("tar", "-C", @unpack_dir, "-xzf", @tarball_path, out: "/dev/null", err: "/dev/null")
  @unpacked = !!exit_success
end

#unpack_jobs ⇒ Object 



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# File 'lib/cli/release_tarball.rb', line 30

def unpack_jobs
  return @unpacked_jobs unless @unpacked_jobs.nil?
  exit_success = safe_fast_unpack('./jobs/')
  unless all_release_jobs_unpacked?
    exit_success = safe_unpack('./jobs/')
  end
  @unpacked_jobs = !!exit_success
end

#unpack_license ⇒ Object 



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# File 'lib/cli/release_tarball.rb', line 39

def unpack_license
  return @unpacked_license unless @unpacked_license.nil?
  exit_success = safe_fast_unpack('./license.tgz')
  @unpacked_license = !!exit_success
end

#unpack_manifest ⇒ Object 



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# File 'lib/cli/release_tarball.rb', line 24

def unpack_manifest
  return @unpacked_manifest unless @unpacked_manifest.nil?
  exit_success = safe_fast_unpack('./release.MF')
  @unpacked_manifest = !!exit_success
end

#upload_packages?(package_matches = []) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cli/release_tarball.rb', line 182

def upload_packages?(package_matches = [])
  return true if package_matches.nil?
  package_matches.size != manifest_yaml[@packages_folder].size
end

#validate_jobs(options = {}) ⇒ Object 



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# File 'lib/cli/release_tarball.rb', line 317

def validate_jobs(options = {})
  allow_sparse = options.fetch(:allow_sparse, false)
  unpack_jobs
  unpack_license

  total_jobs = manifest_yaml["jobs"].size

  step("Checking jobs format",
       "Jobs are not versioned, please re-create release with current CLI version (or any CLI >= 0.4.4)", :fatal) do
    total_jobs > 0 && manifest_yaml["jobs"][0].is_a?(Hash)
  end

  manifest_yaml["jobs"].each_with_index do |job, i|
    @jobs << job

    name    = job["name"]
    version = job["version"]

    job_file   = File.expand_path(name + ".tgz", @unpack_dir + "/jobs")
    job_exists = File.exists?(job_file)

    step("Read job '%s' (%d of %d), version %s" % [name, i+1, total_jobs, version],
         "Job '#{name}' not found") do
      job_exists || allow_sparse
    end

    if job_exists
      step("Job '#{name}' checksum",
           "Incorrect checksum for job '#{name}'") do
        Digest::SHA1.file(job_file).hexdigest == job["sha1"]
      end

      job_tmp_dir = Dir.mktmpdir
      FileUtils.mkdir_p(job_tmp_dir)
      job_extracted = !!system("tar", "-C", job_tmp_dir, "-xzf", job_file, out: "/dev/null", err: "/dev/null")

      step("Extract job '#{name}'", "Cannot extract job '#{name}'") do
        job_extracted
      end

      if job_extracted
        job_manifest_file = File.expand_path("job.MF", job_tmp_dir)
        if File.exists?(job_manifest_file)
          job_manifest = load_yaml_file(job_manifest_file)
        end
        job_manifest_valid = job_manifest.is_a?(Hash)

        step("Read job '#{name}' manifest",
             "Invalid job '#{name}' manifest") do
          job_manifest_valid
        end

        if job_manifest_valid && job_manifest["templates"]
          job_manifest["templates"].each_key do |template|
            step("Check template '#{template}' for '#{name}'",
                 "No template named '#{template}' for '#{name}'") do
              File.exists?(File.expand_path(template, job_tmp_dir + "/templates"))
            end
          end
        end

        validate_job_packages = options.fetch(:validate_job_packages, true)

        if validate_job_packages && job_manifest_valid && job_manifest["packages"]
          job_manifest["packages"].each do |package_name|
            step("Job '#{name}' needs '#{package_name}' package",
                 "Job '#{name}' references missing package '#{package_name}'") do
              @available_packages[package_name] || allow_sparse
            end
          end
        end

        step("Monit file for '#{name}'",
             "Monit script missing for job '#{name}'") do
          File.exists?(File.expand_path("monit", job_tmp_dir)) || Dir.glob("#{job_tmp_dir}/*.monit").size > 0
        end
      end
    end
  end
end

#validate_manifest ⇒ Object 



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# File 'lib/cli/release_tarball.rb', line 244

def validate_manifest
  step("Extract manifest",
       "Cannot extract manifest #{@tarball_path}", :fatal) do
    unpack_manifest
  end

  manifest_file = File.expand_path("release.MF", @unpack_dir)
  step("Manifest exists", "Cannot find release manifest", :fatal) do
    File.exists?(manifest_file)
  end

  @manifest_yaml = nil

  step("Release name/version",
       "Manifest doesn't contain release name and/or version") do
    manifest_yaml.is_a?(Hash) &&
        manifest_yaml.has_key?("name") &&
        manifest_yaml.has_key?("version")
  end

  @release_name = manifest_yaml["name"]
  @version = manifest_yaml["version"].to_s
  @validated = true
end

#validate_packages(options = {}) ⇒ Object 



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# File 'lib/cli/release_tarball.rb', line 269

def validate_packages(options = {})
  allow_sparse = options.fetch(:allow_sparse, false)
  unpack

  total_packages = manifest_yaml[@packages_folder].size
  @available_packages = {}

  manifest_yaml[@packages_folder].each_with_index do |package, i|
    @packages << package
    name, version = package['name'], package['version']

    package_file   = File.expand_path(name + ".tgz", File.join(@unpack_dir, @packages_folder))
    package_exists = File.exists?(package_file)

    step("Read package '%s' (%d of %d)" % [name, i+1, total_packages],
         "Missing package '#{name}'") do
      package_exists || allow_sparse
    end

    if package_exists
      @available_packages[name] = true
      step("Package '#{name}' checksum",
           "Incorrect checksum for package '#{name}'") do
        Digest::SHA1.file(package_file).hexdigest == package["sha1"]
      end
    end
  end

  # Check package dependencies
  # Note that we use manifest["packages"] here; manifest contains
  # all packages even if release is sparse, so we can detect problems
  # even in sparse release tarball.
  if total_packages > 0
    step("Package dependencies",
         "Package dependencies couldn't be resolved") do
      begin
        tsort_packages(manifest_yaml[@packages_folder].inject({}) { |h, p|
                         h[p["name"]] = p["dependencies"] || []; h })
        true
      rescue Bosh::Cli::CircularDependency,
          Bosh::Cli::MissingDependency => e
        errors << e.message
        false
      end
    end
  end
end