To protect your system and ghostty from misbehaving programs that launch
too many processes for the system to handle (e.g. like a fork bomb),
this implements an option to limit the number of processes that can be
started in a surface.
A fork bomb for example or other misbehaving program would then only
take down one surface and not the entire system.
Side node:
If I am right in issue #2084, this feature does not actually work on a
per surface basis but on all surfaces. If this is the case, it could
probably be fixed together. Chances are, that I am wrong though 😉
Further improvements that could be done:
- unify way to set cgroup attributes
- set sane default: 10% of system max?
There are scenarios where this configuration looks bad. This commit
introduces some heuristics to prevent it. Here are the heuristics:
* Extension is always enabled on alt screen.
* Extension is disabled if a row contains any default bg color. The
thinking is that in this scenario, using the default bg color looks
just fine.
* Extension is disabled if a row is marked as a prompt (using semantic
prompt sequences). The thinking here is that prompts often contain
perfect fit glyphs such as Powerline glyphs and those look bad when
extended.
This introduces some CPU cost to the extension feature but it should be
minimal and respects dirty tracking. This is unfortunate but the feature
makes many terminal scenarios look much better and the performance cost
is minimal so I believe it is worth it.
Further heuristics are likely warranted but this should be a good
starting set.
Add `window-padding-top`, `window-padding-bottom`,
`window-padding-left`, and `window-padding-right` options. The
`window-padding-x` and `window-padding-y` options will override the
individual options.
This patch fixes#2010 by implementing `quit-after-last-window-closed`
for the GTK apprt. It also adds the ability for the GTK apprt to exit
after a delay once all surfaces have been closed and adds the ability to
start Ghostty without opening an initial window.
This is a CLI-only config. This is the first such config. I am only
pointing this out since it is a new pattern for Ghostty.
By specifying `--config-default-files=false`, Ghostty will discard any
configuration set in the default files it loads. This makes running
Ghostty from the CLI easier if you want to "reset" the configuration to
the "factory defaults."
When set, the cursor-invert-fg-bg option uses the inverted foreground
and background colors of the cursor's current cell to color the cursor,
rather than using a fixed color. This option has higher precedence than
the cursor-color and cursor-text options, but has lower precedence than
an OSC 12 command to change the cursor color.
