This commit is very large, representing about a month of work with many
interdependent changes that don't separate cleanly in to atomic commits.
The main change here is unifying the renderer logic to a single generic
renderer, implemented on top of an abstraction layer over OpenGL/Metal.
I'll write a more complete summary of the changes in the description of
the PR.
This wasn't working before but it just requires a restart of the machine
for the changes to take effect. The namespace runners have this prebuilt
so this should work now.
The other workaround was flaky for unknown reasons so I'd prefer to go
back to this.
We were depending on $GHOSTTY_RESOURCES_DIR for two reasons:
1. To locate our script-adjacent bash-preexec.sh script
2. To restrict our script's execution to environments in which
$GHOSTTY_RESOURCES_DIR is available (i.e. Ghostty-only shells)
For (1), we can instead determine our directory using $BASH_SOURCE[0].
This is slightly differently than our previous behavior, where we'd
always load bash-preexec.sh from the $GHOSTTY_RESOURCES_DIR hierarchy,
even if ghostty.bash from source from somewhere else on the file system
... but we never relied on that behavior, even in development.
For (2), there's no harm in source'ing this script outside of Ghostty,
and if that does become a concern, we can restore this condition or use
something more targeted based on those specific cases.
Historically, I believe (2) was in place to enable (1), so addressing
(1) removes the need for (2).
And lastly, none of the other shell integration scripts depend on
$GHOSTTY_RESOURCES_DIR.
Updates all copyright notices to include "Ghostty contributors" to
reflect the fact that Mitchell is not the sole copyright owner.
Also adds "Ghostty contributors" to the author section in the manpages,
linking https://github.com/ghostty-org/ghostty/graphs/contributors for
proper credit.
This updates our build script and CI to support Xcode 26 and macOS
Tahoe. **This doesn't update the Ghostty app to resolve any Tahoe
issues.**
For CI, we've added a new build job that runs on macOS Tahoe with Xcode
26. I've stopped short of updating our tip release job, since I think I
want to wait until I verify a bit more about Tahoe before we flip that
bit. Also, ideally, we'd run Xcode 26 on Sequoia (macOS 15) for
stability reasons and Namespace doesn't have Xcode 26 on 15 yet.
For builds, this updates our build script to find Metal binaries using
`xcodebuild -find-executable` instead of `xcrun`. The latter doesn't
work with Xcode 26, but the former does and also still works with older
Xcodes. I'm not sure if this is a bug but I did report it: FB17874042.
Implements mode 1048 for saving/restoring cursor position.
This is the same as mode 1049 but only saves cursor position without
touching the alternate screen.
**save/restore cursor position:**
- `ESC[?1048h` - save cursor position
- `ESC[?1048l` - restore cursor position
**Quick test:**
```bash
printf '\e[5;10H[SAVED HERE]'
printf '\e[?1048h' # save position
printf '\e[15;1HMoved somewhere else...'
printf '\e[?1048l' # restore
printf ' RESTORED!' # should appear next to [SAVED HERE]
```
Fixes#7473
We previously only showed this message if the user had
`wait-after-command` set to true, since if its false the surface would
close anyways.
With the latest undo feature on macOS, this is no longer the case; a
exited process can be undone and reopened. I considered disallowing
undoing an exited surface, but I think there is value in being able to
go back and recapture output in scrollback if you wanted to.
This PR implements the ability to undo/redo new and closed windows,
tabs, and splits.
## Demo
https://github.com/user-attachments/assets/98601810-71b8-4adb-bfa4-bdfaa2526dc6
## Details
### Undo Timeout
Running terminal sessions _remain running_ for a configurable period of
time after close, during which time they're undoable. This is similar to
"email unsend" (since email in the traditional sense can't be unsent,
clients simply hold onto it for a period of time before sending).
This behavior is not unique to Ghostty. The first and only place I've
seen it is in iTerm2. And iTerm2 behaves similarly, although details of
our behavior and our implementation vary greatly.
The configurable period of time is done via the `undo-timeout`
configuration. The default value is 5 seconds. This feels reasonable to
be and is grounded in being the default for iTerm2 as well, so it's
probably a safe choice.
Undo can be disabled by setting `undo-timeout = 0`.
### Future
The actions that can be potentially undone/redone can be easily expanded
in the future. Some thoughts on things that make sense to me:
- Any sort of split resizing, including equalization
- Moving tabs or splits
#### What about Linux?
I'd love to support this on Linux. I don't think any other terminal on
Linux has this kind of feature (definitely might be wrong, but I've
never seen it and I've looked at a lot of terminal emulators 😄 ). But
there's some work to be done to get there.
## TODO for the Draft PR
This is still a draft. There are some items remaining (list will update
as I go):
- [x] Undoing a closed window is sometimes buggy still and I'm not sure
why, I have to dig into this.
- [x] New window should be undoable
- [x] New tab should be undoable
- [x] Close All Windows should be undoable
- [x] I think I have to get rid of TerminalManager. Undone windows won't
be in TerminalManager's list of controllers and I think that's going to
break a lot of things.
- [x] I haven't tested this with QuickTerminal at all. I expect bugs
there but I want undo to work with splits there.
- [x] Close window with the red traffic light button doesn't trigger
undo
- [x] Closing window with multiple tabs undoes them as separate windows
When macOS's "Private WiFi address" feature is enabled it'll change the
hostname to a mac address. Mac addresses look like URIs with a hostname
and port component, e.g. 12:34:56:78:90:12 where `:12` looks like port
12. However, mac addresses can also contain letters a through f, so a
valid mac address like ab💿ef🆎cd:ef is valid, but will not be parsed
as a URI, because `:ef` is not a valid port.
This commit attempts to fix that by checking if the hostname is a valid
mac address when `std.Uri.parse()` fails and constructing a new std.Uri
struct using that information.
It's not perfect, but is equally compliant with the URI spec as std.Uri
currently is.
Since the W3C rewrite we're able to specify codepoints like `+` directly
in the config format who otherwise have special meanings. Turns out we
forgot to do the same for `=`.
Since the W3C rewrite we're able to specify codepoints like `+` directly
in the config format who otherwise have special meanings. Turns out we
forgot to do the same for `=`.
This makes sure the underlying thread implementation know to free
resources the moment the thread is no longer necessary, preventing leaks
from not manually collecting the thread.
