xbar shows no icons at all if any plugin can't be executed

[sebwills]

Repro

• install a plugin and verify it shows correctly in xbar
• install a second plugin that cannot be executed. For example, clipboard_bar doesn't work on my Sonoma system as it requires PHP.

Actual behaviour

xbar then shows no icons at all (not even for the first plugin which previously worked), but the process remains running.

To recover, I had to fix (or remove) the offending plugin and kill and restart xbar.

Expected

If one plugin cannot be executed, other plugins should still work. I would suggest that for the best UX, the erroring plugin should also show up as an error icon with the error available in the menu.

Details

When running xbar from the terminal in the broken state, the log includes:

2024/01/05 11:01:31 clipboard_bar.1d.php: ERR: exit status 127: env: php: No such file or directory
clipboard_bar.1d.php: 
2024/01/05 11:01:34 internet-status.2s.sh: refreshing: internet-status.2s.sh
2024/01/05 11:01:36 internet-status.2s.sh: refreshing: internet-status.2s.sh
2024/01/05 11:01:36 clipboard_bar.1d.php: cycling: 001-clipboard_bar.1d.php
2024/01/05 11:01:38 internet-status.2s.sh: refreshing: internet-status.2s.sh

System: macOS Sonoma
Version: 2.1.7-beta

[sprak3000]

@sebwills

This would be better served as an issue in the main xbar repo.