Module: VMC::Cli::ManifestHelper

Includes:
ServicesHelper
Included in:
Command::Apps, Command::Manifest
Defined in:
lib/cli/manifest_helper.rb

Constant Summary collapse

DEFAULTS = 
{
  "url" => "${name}.${target-base}",
  "mem" => "128M",
  "instances" => 1
}
MANIFEST = 
"manifest.yml"
YES_SET = 
Set.new(["y", "Y", "yes", "YES"])

Instance Method Summary collapse

Methods included from ServicesHelper

#bind_service_banner, #check_app_for_restart, #create_service_banner, #delete_service_banner, #display_provisioned_services, #display_provisioned_services_table, #display_system_services, #random_service_name, #unbind_service_banner

Instance Method Details

#bind_services(services) ⇒ Object 



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# File 'lib/cli/manifest_helper.rb', line 177

def bind_services(services)
  svcs = services.collect(&:to_s).sort!

  display "The following system services are available"
  configure_service(
    ask(
      "Please select the one you wish to provision",
      :indexed => true,
      :choices => svcs
    ).to_sym
  )

  if ask "Would you like to bind another service?", :default => false
    bind_services(services)
  end
end

#configure_app(many = false) ⇒ Object 



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# File 'lib/cli/manifest_helper.rb', line 81

def configure_app(many=false)
  name = manifest("name") ||
    set(ask("Application Name", :default => manifest("name")), "name")

  url_template = manifest("url") || DEFAULTS["url"]
  url_resolved = url_template.dup
  resolve_lexically(url_resolved)

  url = ask("Application Deployed URL", :default => url_resolved)

  url = url_template if url == url_resolved

  # common error case is for prompted users to answer y or Y or yes or
  # YES to this ask() resulting in an unintended URL of y. Special
  # case this common error
  url = DEFAULTS["url"] if YES_SET.member? url

  set url, "url"

  unless manifest "framework"
    framework = detect_framework
    set framework.name, "framework", "name"
    set(
      { "mem" => framework.mem,
        "description" => framework.description,
        "exec" => framework.exec
      },
      "framework",
      "info"
    )
  end

  set ask(
    "Memory reservation",
    :default =>
      manifest("mem") ||
        manifest("framework", "info", "mem") ||
        DEFAULTS["mem"],
    :choices => ["128M", "256M", "512M", "1G", "2G"]
  ), "mem"

  set ask(
    "How many instances?",
    :default => manifest("instances") || DEFAULTS["instances"]
  ), "instances"

  unless manifest "services"
    services = client.services_info
    unless services.empty?
      bind = ask "Would you like to bind any services to '#{name}'?", :default => false
      bind_services(services.values.collect(&:keys).flatten) if bind
    end
  end

  if many and ask("Configure for another application?", :default => false)
    @application = ask "Application path?"
    configure_app
  end
end

#configure_service(vendor) ⇒ Object 



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# File 'lib/cli/manifest_helper.rb', line 194

def configure_service(vendor)
  default_name = random_service_name(vendor)
  name = ask "Specify the name of the service", :default => default_name

  set vendor, "services", name, "type"
end

#detect_framework(prompt_ok = true) ⇒ Object

Detect the appropriate framework.



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# File 'lib/cli/manifest_helper.rb', line 157

def detect_framework(prompt_ok = true)
  framework = VMC::Cli::Framework.detect(@application)
  framework_correct = ask("Detected a #{framework}, is this correct?", :default => true) if prompt_ok && framework
  if prompt_ok && (framework.nil? || !framework_correct)
    display "#{"[WARNING]".yellow} Can't determine the Application Type." unless framework
    framework = nil if !framework_correct
    framework = VMC::Cli::Framework.lookup(
      ask(
        "Select Application Type",
        :indexed => true,
        :default => framework,
        :choices => VMC::Cli::Framework.known_frameworks
      )
    )
    display "Selected #{framework}"
  end

  framework
end

#each_app(panic = true) ⇒ Object

take a block and call it once for each app to push/update. with @application and @app_info set appropriately



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# File 'lib/cli/manifest_helper.rb', line 18

def each_app(panic=true)
  if @manifest and all_apps = @manifest["applications"]
    where = File.expand_path(@path)
    single = false

    all_apps.each do |path, info|
      app = File.expand_path("../" + path, manifest_file)
      if where.start_with?(app)
        @application = app
        @app_info = info
        yield info["name"]
        single = true
        break
      end
    end

    unless single
      if where == File.expand_path("../", manifest_file)
        ordered_by_deps(all_apps).each do |path, info|
          app = File.expand_path("../" + path, manifest_file)
          @application = app
          @app_info = info
          yield info["name"]
        end
      else
        err "Path '#{@path}' is not known to manifest '#{manifest_file}'."
      end
    end
  else
    @application = @path
    @app_info = @manifest
    if @app_info
      yield @app_info["name"]
    elsif panic
      err "No applications."
    end
  end

  nil
ensure
  @application = nil
  @app_info = nil
end

#interact(many = false) ⇒ Object 



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# File 'lib/cli/manifest_helper.rb', line 62

def interact(many=false)
  @manifest ||= {}
  configure_app(many)
end

#save_manifest(save_to = nil) ⇒ Object 



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# File 'lib/cli/manifest_helper.rb', line 71

def save_manifest(save_to = nil)
  save_to ||= target_manifest

  File.open(save_to, "w") do |f|
    f.write @manifest.to_yaml
  end

  say "Manifest written to #{save_to}."
end

#set(what, *where) ⇒ Object 



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# File 'lib/cli/manifest_helper.rb', line 141

def set(what, *where)
  where.unshift "applications", @application

  which = @manifest
  where.each_with_index do |k, i|
    if i + 1 == where.size
      which[k] = what
    else
      which = (which[k] ||= {})
    end
  end

  what
end

#target_manifest ⇒ Object 



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# File 'lib/cli/manifest_helper.rb', line 67

def target_manifest
  @options[:manifest] || MANIFEST
end