Build and Compress Application in Go

by dikhimartin 3 months ago

GNU/Linux ◆ xterm-256color ◆ bash 95 views

Follow these instructions to build and compress your application:

Verify UPX Installation:
```
   which upx
```
- Check if UPX is installed and available in your PATH.
Download Go Dependencies:
```
   go get -d -v
```
- Fetch the necessary Go modules and dependencies.

Build the Application:

   go build -a -tags "netgo production" -p 1 -ldflags '-s -w -extldflags "-static"' -o app.run .

Compile the application with the specified flags and output it as app.run.

Compress the Executable:
```
   upx app.run
```
- Use UPX to compress the app.run executable.

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You can download this recording in asciicast v2 format, as a .cast file.

Download

Replay in terminal

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

asciinema play 674611.cast

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/674611.cast',
      document.getElementById('player'),
      { cols: 211, rows: 57 }
    );
  </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/674611 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.