Class: HtmlDiff

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(argv = []) ⇒ HtmlDiff

Returns a new instance of HtmlDiff.



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

def initialize(argv=[])
  @wd = `pwd`.gsub("\n", "")
  @argv = argv
end

Instance Attribute Details

#argv ⇒ Object

Returns the value of attribute argv.



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# File 'lib/html_diff.rb', line 2

def argv
  @argv
end

#wd ⇒ Object

Returns the value of attribute wd.



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# File 'lib/html_diff.rb', line 2

def wd
  @wd
end

Instance Method Details

#branch ⇒ Object 



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# File 'lib/html_diff.rb', line 23

def branch
  status=`git status`
  status.scan(/On branch (.*)\n/).last.last
end

#content ⇒ Object 



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# File 'lib/html_diff.rb', line 121

def content
  content = initial_content
  content += "<h2>" + branch + "<br>" + stats_line + "</h2>"
  content += html_diff+"</body></html>"
end

#html_diff ⇒ Object 



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# File 'lib/html_diff.rb', line 28

def html_diff
  diff=`git diff #{@argv.join(" ")}`
  diff.gsub!("<", "&lt;")
  diff.gsub!(">", "&gt;")
  diff.gsub!(/^index [a-z0-9]{7}\.\.[a-z0-9]{7}$/, "")
  diff.gsub!(/^diff \-\-git a\/([^\s]*).*\n.*$/) { "<div class='diff-file'>"+$1+"</div>" }
  diff.gsub!(/^(\-\-\-\s)((?:a.*)|(?:\/dev\/null.*))$/) { "<pre class='code'><span class='delete'>"+$1+"&nbsp;"+$2+"</span>" }
  diff.gsub!(/(\n\<div class\=\'diff-file\'\>)/) { "</pre>"+$1}
  diff.gsub!(/^(\@\@.*)$/) { "<br><span class='at-linenums'>"+$1+"</span>"}

  diff.gsub!(/^(\++)(.*)$/) { "<span class='add'>"+$1+"&nbsp;"+$2+"</span>" }
  diff.gsub!(/^(\-+)(.*)$/) { "<span class='delete'>"+$1+"&nbsp;"+$2+"</span>" }
  diff
end

#initial_content ⇒ Object 



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# File 'lib/html_diff.rb', line 43

def initial_content
  '''
  <!DOCTYPE html>

  <html>
  <head>
  <title></title>
  <meta http-equiv="Content-Type" content="text/html;charset=utf-8" >
  <style>
  body {
    font-family: "Lucida Console", Monaco, monospace;
    font-size: 13px;
    padding-bottom: 50px;
  }
  h2 {
    text-align: center;
    font-size: 1.4em;
  }
  .diff-file {
    background: -webkit-linear-gradient(#fafafa, #eaeaea);
    -ms-filter: "progid:DXImageTransform.Microsoft.gradient(startColorstr=\'#fafafa\',endColorstr=\'#eaeaea\')";
    border: 1px solid #d8d8d8;
    border-bottom: 0;
    color: #555;
    font: 14px sans-serif;
    overflow: hidden;
    padding: 12px 0px 12px 25px;
    text-shadow: 0 1px 0 white;
    width: 80%;
    margin: 50px auto 17px;
    float: none;
  }
  .code .add {
    background-color: #DDFFDD;
    padding: 2px 2% 2px 10px;
    margin-left: -25px;
    display:inline-block;
    width: 105%;
  }
  .code .delete {
    background-color: #FFDDDD;
    padding: 2px 2% 2px 10px;
    margin-left: -25px;
    display:inline-block;
    width: 105%;
  }
  .code .at-linenums {
    color: #9B9B99;
  }
  .tab {
    width: 50px;
    height: 13px;
    display: inline-block;
  }
  .code {
    border: 1px solid #cacaca;
    line-height: 1.7em;
    overflow: hidden;
    -webkit-border-radius: 0 0 3px 3px;
    -moz-border-radius: 0 0 3px 3px;
    border-radius: 0 0 3px 3px;
    -moz-background-clip: padding;
    -webkit-background-clip: padding-box;
    background-clip: padding-box;
    background-color: #FAFAFB;
    color: #393939;
    padding: 5px 0px 5px 25px;
    width: 80%;
    margin: -18px auto;
    overflow: scroll;
    float: none;
  }
  </style>
  </head>
  <body>
  '''
end

#make_diff ⇒ Object 



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# File 'lib/html_diff.rb', line 127

def make_diff
  File.open(@wd+"/mydiff.html", "wb+") do |f|
    f.write(content)
  end

  `open #{@wd}/mydiff.html`
  `sleep 5 && rm #{@wd}/mydiff.html`
end

#stats_line ⇒ Object 



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

def stats_line
  stats=`git diff --stat #{@argv.join(" ")}`
  if stats == ""
    return "no changes"
  end
  out_stats=[]
  out_stats << stats.scan(/\d+ files? changed/).last
  out_stats << stats.scan(/\d+ insertions?\(\+\)/).last
  out_stats << stats.scan(/\d+ deletions?\(\-\)/).last
  out_stats.reject!(&:nil?)
  
  out_stats.join(", ")
end