Syntax highlighting your code outputted from the git pager.

by abargnesi 8 years ago

GNU/Linux ◆ rxvt-unicode-256color ◆ bash 1826 views

If you use git on the command line then you’ll see code at some point dumped to the pager. By default the output is not colorized as it’s just text to git.

We can change that by setting the GIT_PAGER environment variable to a pager command and combining a syntax highlighting with less.

Example using python’s pygments library:

GIT_PAGER=”pygmentize -l ruby | less -FRX” git show HEAD~2:lib/bel/parsers/ast/node.rb

Enjoy!

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You can download this recording in asciicast v1 format, as a .json file.

Download

Replay in terminal

You can replay the downloaded recording in your terminal using the asciinema play command:

asciinema play 40786.json

If you don't have asciinema CLI installed then see installation instructions.

Use with stand-alone player on your website

Download asciinema player from the releases page (you only need .js and .css file), then use it like this:

<!DOCTYPE html>
<html>
<head>
  <link rel="stylesheet" type="text/css" href="asciinema-player.css" />
</head>
<body>
  <div id="player"></div>
  <script src="asciinema-player.min.js"></script>
  <script>
    AsciinemaPlayer.create(
      '/assets/40786.json',
      document.getElementById('player'),
      { cols: 88, rows: 27 }
    );
  </script>
</body>
</html>

See asciinema player quick-start guide for full usage instructions.

While this site doesn't provide GIF conversion at the moment, you can still do it yourself with the help of asciinema GIF generator utility - agg.

Once you have it installed, generate a GIF with the following command:

agg https://asciinema.org/a/40786 demo.gif

Or, if you already downloaded the recording file:

agg demo.cast demo.gif

Check agg --help for all available options. You can change font family and size, select color theme, adjust speed and more.

See agg manual for full usage instructions.