Shorten tty output when terminal is too small

[laurazard]

Signed-off-by: Laura Brehm laurabrehm@hey.com

We've had lots of complaints about the new TUI breaking when output exceeds terminal height. Related discussion can be found in these issues:

• Ugly CLI output when it exceeds terminal's height #9377
• New TUI spams lines when pulling multiple images causing you to lose your terminal history #8800
• Disable the new fancy TUI in favor of old simple build/run output #8753
• Docker Compose pull don't clean terminal #9500
• [BUG] Output of "docker-compose pull" is unusable #9962

The issue was partly addressed by the changes to detect when multiple services use the same images in #9173, but the root issue persists. Whenever have more lines to write than the terminal height, we're unable to scroll back far enough to rewrite the buffer, and leave dangling lines behind, filling up the terminal scrollback and resulting in bad UX.

What I did

Detect when the number of events we have to display is > than terminal height, and adjust the output to omit child events when that's the case. This isn't a perfect solution (if the number of services > terminal height we will still run into issues, and the shortened output isn't very explicit), but it only kicks in in cases where the output would otherwise be worse, so it's an improvement over the current situation.

Before:

Screen.Recording.2023-01-12.at.01.20.16.mov

After:

Screen.Recording.2023-01-12.at.01.22.00.mov

(not mandatory) A picture of a cute animal, if possible in relation to what you did

[codecov]

Codecov Report

Base: 73.89% // Head: 73.89% // No change to project coverage 👍

Coverage data is based on head (3a1910e) compared to base (3e12a7c).
Patch has no changes to coverable lines.

Additional details and impacted files

@@           Coverage Diff           @@
##               v2   #10168   +/-   ##
=======================================
  Coverage   73.89%   73.89%           
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  Files           2        2           
  Lines         272      272           
=======================================
  Hits          201      201           
  Misses         60       60           
  Partials       11       11           

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[ndeloof]

Nice !! 🥳