Class: Transform

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#config_files ⇒ Object

Returns the value of attribute config_files.



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# File 'lib/transform.rb', line 7

def config_files
  @config_files
end

#env ⇒ Object

Returns the value of attribute env.



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# File 'lib/transform.rb', line 3

def env
  @env
end

#settings ⇒ Object

Returns the value of attribute settings.



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# File 'lib/transform.rb', line 6

def settings
  @settings
end

#svc ⇒ Object

Returns the value of attribute svc.



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# File 'lib/transform.rb', line 4

def svc
  @svc
end

#table ⇒ Object

Returns the value of attribute table.



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# File 'lib/transform.rb', line 5

def table
  @table
end

Instance Method Details

#get(key) ⇒ Object 



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# File 'lib/transform.rb', line 9

def get(key)
    begin
        result = @svc.get_entity(@table, @env, key)
    rescue
        puts $!
        puts "key : #{@key}"
        puts
    end

    result
end

#get_all ⇒ Object 



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# File 'lib/transform.rb', line 21

def get_all
    begin
        query = { :filter => "PartitionKey eq '#{@env}'" }
        result = @svc.query_entities(@table, query)
    rescue
        puts $!
        puts "Env : #{@env}"
        puts
    end
    
    result    
end

#get_value(key) ⇒ Object 



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# File 'lib/transform.rb', line 34

def get_value(key)
    value = ''
    @settings.each { |i|
        if i.properties['RowKey'] == key
            value = i.properties['setting']
            break
        end
    }

    value
end

#transform ⇒ Object 



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# File 'lib/transform.rb', line 167

def transform

    # environment invoked
    @env = ENV['env'] || 'noenv'
    if @env == 'noenv'
        puts 'Environment name required to transform. No configuration changes will be done...'
        return false
    end

    is_service = ENV['ServiceName'] || 'nosvc'
    puts 'Target to transform is not a service...' if is_service == 'nosvc'

    puts "Transforming config for environment: #{@env} ..."

    # azure table storage account where settings reside
    Azure.config. = ENV['StorageAccount']
    Azure.config.storage_access_key = ENV['StorageAccountKey']
    @table = ENV['ConfigSettingsTable']

    # table service
    @svc = Azure::TableService.new

    # get all settings for environment
    @settings = get_all

    # find all App.config and web.config files
    @config_files = Dir.glob("**/app.config")
    @config_files.concat(Dir.glob("**/web.config"))

    if is_service

        puts "Obtaining cloud configuration templates..."
        csdefTemplate = get_value('ServiceDefinitionTemplate')
        File.write('ServiceDefinition.csdef', csdefTemplate)
        cscfgTemplate = get_value('ServiceConfigurationTemplate')
        File.write('ServiceConfiguration.cscfg', cscfgTemplate)

        @config_files.concat(Dir.glob("**/RuntimeWeb/*Web.dll.config"))
        @config_files.concat(Dir.glob("**/RuntimeService/*.exe.config"))

        puts "Transforming csdef..."
        transform_csdef

        puts "Transforming cscfg..."
        transform_cscfg

        puts "Transforming diagnostics cfg..."
        transform_diagnosticscfg

        puts "Replacing service model settings..."
        transform_servicemodelconfig
        
    end

    puts "Replacing app settings..."
    transform_appsettings

    puts "Removing debug compilation attributes..."
    transform_systemwebcompilationattribs

    return true
end

#transform_appsettings ⇒ Object 



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# File 'lib/transform.rb', line 46

def transform_appsettings
    # go to each file and replace value of matching appSettings key
    @config_files.each{|file|
        doc = Nokogiri::XML(File.read(file))
        puts "Processing file: #{file}"
        @settings.each { |i|
            key = i.properties['RowKey']
            node = doc.at_css "appSettings/add[@key='#{key}']"
            if !node.nil?
                oldVal = node['value']
                #puts "Old value: #{oldVal}"
                node['value'] = i.properties['setting']
                newVal = node['value']
                #puts "New value: #{newVal}"
            end
        }
        File.write(file, doc.to_xml)
    }
end

#transform_cscfg ⇒ Object 



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# File 'lib/transform.rb', line 131

def transform_cscfg
    csdef = Dir.glob("**/*.cscfg")
    csdef.each{ |file|
        doc = Nokogiri::XML(File.read(file))

        node = doc.at_css "ServiceConfiguration"
        node['serviceName'] = ENV['ServiceName'] if !node.nil?

        node = doc.at_css "Role"
        node['name'] = ENV['ServiceName'] if !node.nil?

        node = doc.at_css "Certificates"
        node.replace(get_value('Certificates_cscfg')) if !node.nil?

        node = doc.at_css "ConfigurationSettings"
        node.replace(get_value('ConfigurationSettings_cscfg')) if !node.nil?
        
        File.write(file, doc.to_xml)
    }
end

#transform_csdef ⇒ Object 



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# File 'lib/transform.rb', line 95

def transform_csdef
    csdef = Dir.glob("**/*.csdef")
    csdef.each{ |file|
        doc = Nokogiri::XML(File.read(file))

        node = doc.at_css "ServiceDefinition"
        node['name'] = ENV['ServiceName'] if !node.nil?

        node = doc.at_css "WebRole"
        node['name'] = ENV['ServiceName'] if !node.nil?

        node = doc.at_css "WorkerRole"
        node['name'] = ENV['ServiceName'] if !node.nil?

        node = doc.at_css "Certificates"
        node.replace(get_value('Certificates_csdef')) if !node.nil?
        
        node = doc.at_css "Endpoints"
        node.replace(get_value('Endpoints')) if !node.nil?
        
        node = doc.at_css "Bindings"
        node.replace(get_value('Bindings')) if !node.nil?
        
        node = doc.at_css "Sites"
        node.replace(get_value('Sites')) if !node.nil?
                  
        node = doc.at_css "Imports"
        node.replace(get_value('Imports')) if !node.nil?
        
        node = doc.at_css "LocalResources"
        node.replace(get_value('LocalResources')) if !node.nil?

        File.write(file, doc.to_xml)
    }
end

#transform_diagnosticscfg ⇒ Object 



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# File 'lib/transform.rb', line 152

def transform_diagnosticscfg
    csdef = Dir.glob("**/*.wadcfgx")
    csdef.each{ |file|
        doc = Nokogiri::XML(File.read(file))

        node = doc.at_css "PrivateConfig/StorageAccount"
        node['name'] = get_value('StorageAccount')
        node['key'] = get_value('StorageAccountKey')
        node = doc.at_css "StorageAccount"
        node.content = get_value('StorageAccount')
        
        File.write(file, doc.to_xml)
    }
end

#transform_servicemodelconfig ⇒ Object 



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# File 'lib/transform.rb', line 66

def transform_servicemodelconfig
    @config_files.each{|file|
        doc = Nokogiri::XML(File.read(file))
        doc.xpath('//system.serviceModel').each do |node|
            #puts node
            if file.end_with?('app.config') || file.end_with?('App.config')
                node.replace(get_value('system.ServiceModel.Client')) if !node.nil?
            elsif file.end_with?('Web.config')
                node.replace(get_value('system.ServiceModel.Service')) if !node.nil?
            end
        end
        File.write(file, doc.to_xml)
    } 
end

#transform_systemwebcompilationattribs ⇒ Object 



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# File 'lib/transform.rb', line 81

def transform_systemwebcompilationattribs
    @config_files.each{|file|
        doc = Nokogiri::XML(File.read(file))
        node = doc.at_css "compilation"
        if !node.nil?
            #puts node
            node.xpath('//@debug').remove
            node.xpath('//@tempDirectory').remove
            #puts node
            File.write(file, doc.to_xml)
        end
    }
end