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3. Refactor js file includes #3

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3. Refactor js file includes #3

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51 changes: 34 additions & 17 deletions lib/flamegraph/renderer.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -9,16 +9,8 @@ def initialize(stacks)

def graph_html(embed_resources)
body = ERB.new(read('flamegraph.html.erb')).result
body.sub! "/**INCLUDES**/",
if embed_resources
embed("jquery.min.js","d3.min.js","lodash.min.js")
else
'<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.17/d3.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/1.3.1/lodash.min.js"></script>'
end

body.sub!("/**DATA**/", ::JSON.generate(graph_data));
body.sub!('/**INCLUDES**/', includes(embed_resources))
body.sub!('/**DATA**/', ::JSON.generate(graph_data))
body
end

Expand Down Expand Up @@ -81,13 +73,38 @@ def graph_data

private

def embed(*files)
out = ""
files.each do |file|
body = read(file)
out << "<script src='data:text/javascript;base64," << Base64.encode64(body) << "'></script>"
end
out
def include_files
[
'https://cdnjs.cloudflare.com/ajax/libs/jquery/1.9.1/jquery.min.js',
'https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.17/d3.min.js',
'https://cdnjs.cloudflare.com/ajax/libs/lodash.js/1.3.1/lodash.min.js'
]
end

def includes(embed_resources)
include_files.map do |file|
if embed_resources
embed(file)
else
link(file)
end
end.join("\n")
end

def embed(file)
file = file.split('/').last
body = read(file)
return "<script src='data:text/javascript;base64,#{Base64.encode64(body)}'></script>" if file =~ /\.js$/
return "<link rel='stylesheet' href='data:text/css;base64,#{Base64.encode64(body)}' />" if file =~ /\.css$/

''
end

def link(file)
return "<script src='#{file}'></script>" if file =~ /\.js$/
return "<link rel='stylesheet' href='#{file}' />" if file =~ /\.css$/

''
end

def read(file)
Expand Down