Class: RailsCdnOptimizer::Analyzer

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(asset_path: "app/assets", cdn_host: nil, max_asset_size_kb: 500) ⇒ Analyzer

Returns a new instance of Analyzer.



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# File 'lib/rails_cdn_optimizer/analyzer.rb', line 9

def initialize(asset_path: "app/assets", cdn_host: nil, max_asset_size_kb: 500)
  @asset_path = Pathname.new(asset_path)
  @cdn_host = cdn_host
  @max_asset_size_kb = max_asset_size_kb
end

Instance Attribute Details

#asset_path ⇒ Object (readonly)

Returns the value of attribute asset_path.



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# File 'lib/rails_cdn_optimizer/analyzer.rb', line 7

def asset_path
  @asset_path
end

#cdn_host ⇒ Object (readonly)

Returns the value of attribute cdn_host.



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# File 'lib/rails_cdn_optimizer/analyzer.rb', line 7

def cdn_host
  @cdn_host
end

#max_asset_size_kb ⇒ Object (readonly)

Returns the value of attribute max_asset_size_kb.



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# File 'lib/rails_cdn_optimizer/analyzer.rb', line 7

def max_asset_size_kb
  @max_asset_size_kb
end

Instance Method Details

#analyze ⇒ Object

Analyze all files in asset_path



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# File 'lib/rails_cdn_optimizer/analyzer.rb', line 16

def analyze
  report = []

  return report unless asset_path.exist?

  Find.find(asset_path.to_s) do |file|
    next unless File.file?(file)

    size_kb = (File.size(file).to_f / 1024).round(2)
    suggestion = size_kb > max_asset_size_kb ? "Consider optimizing" : "OK"
    cdn_header = cdn_host ? "Cache-Control: max-age=31536000, immutable" : "Not configured"

    report << {
      path: Pathname.new(file).relative_path_from(asset_path).to_s,
      size_kb: size_kb,
      suggestion: suggestion,
      cdn_header: cdn_header
    }
  end

  report
end

#generate_json_report(file = "cdn_report.json") ⇒ Object

Generate JSON report



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# File 'lib/rails_cdn_optimizer/analyzer.rb', line 40

def generate_json_report(file = "cdn_report.json")
  report = analyze
  File.write(file, JSON.pretty_generate(report))
  file
end