I noticed that in debug builds, `wezterm set-working-directory` had
high/variable latency, and I traced part of it to the ssh config parsing
logic.
Make that lazily evaluate the ssh config.
refs: #3402
Finally getting around to wrapping this up; previously you had
to define your own format-tab-title event handler if you wanted
to show the title that you had set via `tab:set_title`.
Now, if that string is not empty, it will be used instead of
the title string from the active pane.
refs: #1598
The pixel sizes are too tiny on my retina mac display, so I wanted
to make them larger. I noticed that the background color was transparent
which resulted in the appearance of a cross behind the button; that's
due to the way that the rounded corners are applied, so we need to
explicitly fill the background with the same color.
Refactor to make changing the size in the future a DRY operation,
but I left the size as-is because it needs more finesse and
I want to come back to that tomorrow.
Remove an unsafe global variable and replace with a member variable
that works similarly to the drag tracking.
Doing this from a mac... may not compile on a windows box!
Broken config could cause the gui to exit before it would normally
print the config warnings and errors, making it harder to understand
what is going on.
This commit bundles the config error text together with whatever
caused it to error out in the fatal error case.
Now that we have a more regular domain-shaped serial thingy,
refactor the `wezterm serial` command to re-use the common
gui setup and running logic. This removes some FIXMEs from
around the wonky setup of the domain, which is nice.
This commit teaches the config about SerialDomains, and the mux
layer about constructing a SerialDomain, then changes the GUI
layer to use those pieces to set up `wezterm serial`.
A new `serial_ports` config is added, and the GUI layer knows how
to apply it to the set of domains in the mux.
The result of this is that you can now define a domain for each
serial port and spawn a serial connection into a new tab or window
in your running wezterm gui instance.
It's a tremendous PITA for the user to do this at the system level on a
mac, where it is sorely needed. This commit allows raising to a desired
minimum level, but won't decrease from an already larger soft limit.
refs: https://github.com/wez/wezterm/discussions/3353
Three issues:
* The initial connect would leave the dpi assigned to 0, resulting
in incorrect scaling when using imgcat until the window was resized
and the correct dpi was passed up.
* On resize, we'd only compare the row/col count and not notice changes
in pixel dimensions/dpi
* On the server side, when processing a resize and recomputing
the tab size, we would omit the pixel dimensions and leave
the resulting tabs and panes with 0 dimensions, breaking imgcat
because it thought the window was 0x0.
refs: https://github.com/wez/wezterm/issues/3366
This fixes a surprising interaction between copy mode and the
command palette, but is also the root cause of another issue
with CharSelect mode.
refs: https://github.com/wez/wezterm/issues/2947
On macOS prefer CMD, but on other platform prioritize shortcuts
that don't use CMD, as those tend to reserve the CMD based shortcuts
for the system.
Allow specifying how many shortcuts to show if an action has
multiple assignments. The default is 1.
refs: https://github.com/wez/wezterm/issues/3335
added a new `ui_key_cap_rendering` option that accepts the following
values:
```lua
-- Super, Meta, Ctrl, Shift
config.ui_key_cap_rendering = 'UnixLong'
-- Super, M, C, S
config.ui_key_cap_rendering = 'Emacs'
-- Apple macOS style symbols
config.ui_key_cap_rendering = 'AppleSymbols'
-- Win, Alt, Ctrl, Shift
config.ui_key_cap_rendering = 'WindowsLong'
-- Like WindowsLong, but using a logo for the Win key
config.ui_key_cap_rendering = 'WindowsSymbols'
```
refs: https://github.com/wez/wezterm/issues/3335
For items in the main set of key assignments, show the keyboard
shortcut to the right.
Some items have multiple key assignments; we show only the first
one. We'll probably want to be a bit smarter. For instance,
both linux and windows tend to occupy the Windows/Super key
assignments, so we should probably prioritize showing the Ctrl+Shift
variants on those platforms.
refs: https://github.com/wez/wezterm/issues/3335
Given an assignment like this:
```
{
key = "b",
mods = "ALT",
action = wezterm.action.SplitPane {
direction = 'Right',
command = {
label = 'Bash Right',
args = {'/usr/bin/bash' }
}
}
}
```
we should show the label from the command in the palette.
That's what this commit enables.
If there is no label, but the arguments are set, then the
arguments will be shown instead.
refs: #3252
This commit causes the mux to generate a PaneFocused notification
when the active pane is changed.
The mux server will forward that as a unilateral PDU to connected
clients.
The clientpane implementation will handle that by applying the
same state to the local mux.
refs: #2863
* Translate from File to EncodedFile as needed
* Adopt blob leases in the mux server
* Fix an issue where the first image sent by the mux server would
be replaced on the client by its background image, if configured.
Removed the ImageData::id field to resolve this: you should use
the hash field instead to identify and disambiguate images.
Bumped the termwiz API version because this is conceptually
a breaking change to the API
refs: https://github.com/wez/wezterm/issues/3343
This one was a bit weird because something appeared to be a bit
non-deterministic. With this config:
```lua
local wezterm = require 'wezterm'
return {
window_frame = {
border_left_width = '1cell',
border_right_width = '1cell',
border_bottom_height = '0.5cell',
border_top_height = '0.5cell',
border_left_color = '#444',
border_right_color = '#444',
border_bottom_color = '#444',
border_top_color = '#444',
},
window_padding = {
left = '1.5cell',
right = '1.5cell',
top = '0.5cell',
bottom = '0.5cell',
},
}
```
starting wezterm could result in a terminal that reported either 23 or
24 lines. I got 24 when running the build from da7e29df but usually
23 when running a build out of my repo.
Looking closely, the issue is that the initial window size didn't
account for the configured border size, and that we'd subsequently
fix that up when we later do a resize fixup after creating the window.
This commit refactors the window border logic so that it can be
used prior to having fully constructed the terminal window and then
uses that to fixup the initial computed dimensions.
I also noticed with this config that increasing the font size
with CTRL-+ could also result in an inconsistency between the displayed
terminal size and the pty size we set in the kernel: it was missing
the border adjustment as well, so I added it in there.
refs: #3333
The upstream open crate keeps making stuff async/blocking/not-working on
windows, so this is a step towards removing this dependency.
refs: https://github.com/wez/wezterm/issues/3288
The static OnceCell didn't run destructors, so shift to something
where we can explicitly trigger them to run and clean up the
temporary directory area.
This allows the decoder thread to live only long enough
to decode the full set of frames; we can then store the
leases in memory and pull them in only when there is
a cache miss.
refs: https://github.com/wez/wezterm/issues/3263
Adopt the new blob lease layer to storing and referencing
image files.
This reduces the number of open files needed when
images are being displayed in the terminal.
refs: https://github.com/wez/wezterm/issues/3263
Continuing from the previous commit, this shifts:
* In-memory data -> temporary file
* Image decoding -> background thread
The background thread asynchronously decodes frames and
sends them to the render thread via a bounded channel.
While decoding frames, it writes them, uncompressed, to
a scratch file so that when the animation loops, it is
a very cheap operation to rewind and pull that data
from the file, without having to burn CPU to re-decode
the data from the start.
Memory usage is bounded to 4 uncompressed frames while
decoding, then 3 uncompressed frames (triple buffered)
while looping over the rest.
However, disk usage is N uncompressed frames.
refs: https://github.com/wez/wezterm/issues/3263
This makes decoding animation frames a lazy operation, but it
comes at the cost of needing to re-decode the image from scratch
when it loops, because the image crate doesn't provide a way
to rewind its frame iterator.
That initial decode can have a significant time cost; a small
webp file consistently takes 150ms to decode, which is too
much to do inline in the render thread.
Next steps will be to move that cost off the render thread.
In #3260, the candidate animation had a frame delay of 1ms. That is
problematic because there is no hope for wezterm running at 60fps (a
frame delay of ~16ms) to render that without dropping frames.
A consequence of such a short frame delay, coupled with the way that
images are carved up into cells, is that individual cells can easily
become visibled de-synchronized from their neighbors and results in what
looks like mpeg artifacts but are really regions where the cells are a
few frames ahead/behind their neighbors.
The solution is to clamp the frame duration up to match the minimum
displayable frame duration as governed by max_fps.
refs: https://github.com/wez/wezterm/issues/3260
I don't recall changing it to copy to the primary selection only, and
it doesn't feel like it is something I would want anyway, and I think
it generally makes things annoying for all but power users
https://fosstodon.org/@trentskunk@mstdn.social/109808345817367266
Threads through a GuiPosition from mux window creation to allow it to be
used when the corresponding gui window is created.
SpawnCommand now has an optional position field to use for that purpose.
```lua
wezterm.mux.spawn_window {
position = {
x = 10,
y = 300,
-- Optional origin to use for x and y.
-- Possible values:
-- * "ScreenCoordinateSystem" (this is the default)
-- * "MainScreen" (the primary or main screen)
-- * "ActiveScreen" (whichever screen hosts the active/focused window)
-- * {Named="HDMI-1"} - uses a screen by name. See wezterm.gui.screens()
-- origin = "ScreenCoordinateSystem"
},
}
```
refs: https://github.com/wez/wezterm/issues/2976
The motivation here was to remove some similar but not quite the same
logic that existed for starting up when using `wezterm connect`.
Now `wezterm connect DOMAIN` is implemented as `wezterm start --domain
DOMAIN --attach --always-new-process` and a little extra hand-wave to
ensure that the default domain is set correctly.
The startup events have been refactored a bit; a new gui-attached
event is emitted after attaching and starting any default programs
in the selected domain at startup.
That event can be used to maximize windows and so on, if desired.
The gui-attached event is independent of the startup command and fires
for `wezterm connect`, which `gui-startup` did not (and could not) do.
The tcgetpgrp call appears to have high variance in latency, ranging
from 200-700us on my system.
If you have 10 tabs and mouse over the tab bar, that's around 7ms
spent per frame just figuring out the foreground process; that doesn't
include actually extracting the process executable or current working
directory paths.
This was exacerbated by the mouse move events triggering a tab bar
recompute on every pixel of mouse movement.
This commit takes the following steps to resolve this:
* We now only re-compute the tab bar when the UI item is changed by
a mouse movement
* A simple single-item cache is now used on unix that allows the caller
to proceed quickly with stale-but-probably-still-mostly-accurate data
while queuing up an update to a background thread which can absorb
the latency.
The result of this is that hovering over several tabs in quick
succession no longer takes a noticeable length of time to render the
hover, but the consequence is that the contents of a given tab may be
stale by 300-400ms.
I think that trade-off is worth while.
We already have a similar trade-off on Windows, although we don't
yet do the updates in a different thread on Windows. Perhaps in
a follow up commit?
refs: https://github.com/wez/wezterm/issues/2991
On my mac, depending the config, I noticed that modals didn't always
render immediately; force a window invalidation after assigning to
encourage them to do so.
The recently added app delegate was telling cocoa that we'd decide
to quit later in response to termination requests, blocking
shutdown/logout/restart.
This commit introduces a macos native modal alert to let the user
decide whether to quit or not.
While testing this, I noticed that in some cases, our internal choice
to quit had no effect. Reading the fine print of NSApp::stop, it sounds
like calling it from a modal context will only stop a modal rather then
exit out of NSApp::run, so we explicitly bounce through an event
callback to try to make it exit from the right place.
I'm not 100% convinced by this. I've left some debug prints in for
now to see if those give some insight in the future.
refs: https://github.com/wez/wezterm/issues/2944
In https://github.com/wez/wezterm/issues/2932 the user desired to have
brightened text without the boldness, as they were accustomed to that
behavior in a couple of other terminal emulators.
This commit changes the `bold_brightens_ansi_colors` from a simple
boolean to a tristate that allows for not changing the brightness,
changing the brightness, and changing the brightness while adjusting
the boldness down to normal levels.
boolean values are accepted for backwards compatibility.
This avoids a jarring situation where the width rubber-bands to fit
a run of narrower text when scrolling down through the list of options.
refs: https://github.com/wez/wezterm/issues/1485
```
thread 'main' panicked at 'Error in Surface::configure: Both `Surface` width and height must be non-zero. Wait to recreate the `Surface` until the window has non-zero area.', C:\Users\runneradmin\.cargo\registry\src\github.com-1ecc6299db9ec823\wgpu-0.14.0\src\backend\direct.rs:274:9
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
```
refs: https://github.com/wez/wezterm/issues/2881
This is moderately painful to do, because of some objc/cocoa lifetime
concern that causes a crash when attempting to simply replace the
entire menubar, so we try to find/update items instead.
refs: https://github.com/wez/wezterm/issues/1485
Fixup CopyMode key assignments; they were all incorrectly
labelled as activating copy mode, which isn't correct.
We're just using Debug labelling for them at the moment,
need to get that fixed properly.
refs: https://github.com/wez/wezterm/issues/1485
This commit safely registers key equivalents with the menubar. Safe in
this context means "doesn't override a key assignment from a key table".
For example, it would suck to define an application-wide key assignment
for a key combination that has a different assignment in a key table
that may be activated conditionally by some user-defined state/mode.
refs: https://github.com/wez/wezterm/issues/1485
Similar to the equivalent functionality in the launcher menu,
syntheisze some default commands based on the current state
of the launcher menu (config) and mux (domains, workspaces).
This does mean that the launcher menu may show duplicates for these
if it has COMMANDS enabled.
refs: https://github.com/wez/wezterm/issues/1485
This commit introduces a rough first pass at a command palette modal.
It is an adaptation of the emoji character selector and needs
refinement.
Importantly, the default pane selector key assignment now calls
into this new command palette instead.
refs: https://github.com/wez/wezterm/issues/1485
re-structure it so that we have a list of default action values,
and a function that can compute the command description from them.
This allows describing user-specified actions in the future,
as well as reducing some boilerplate: we can now generate eg:
ActivateTab(n) description text without hardcoding similar
alternatives.
refs: https://github.com/wez/wezterm/issues/1485
This allows defining those help actions that open URLs in the main
commands list, and not just for the macOS Help menu.
refs: https://github.com/wez/wezterm/issues/1485
This took a decent amount of effort to thread through with context;
wrappers around NSMenu and NSMenuItem are added to reduce some of
the objc usability warts, and an additional NSObject wrapper is
added to help copy the KeyAssignment from the existing list
of command palette commands and associate it with the menu item.
When a menu item is selected, macOS will walk through the responder
chain and look for a responder that responds to the selector associated
with the menu item. In practice that means that our window/view class
will be tried first, and then later, our app delegate will be tried.
This commit implements routing from both of these: the window case
routes to the associated TermWindow and drops into the existing
perform_key_assignment method.
In case there is no window (not currently possible, but will be
in the future), the app delegate also has a placeholder for dispatching
key assignments, although it will only be able to perform a subset
of the possible actions.
A couple of things to note:
* Items aren't smart enough to disable themselves or adjust their
caption based on the context. To make that work, we either need
to recreate the entire menubar when any possible context changes
(doable, but feels heavy), or we need to assign a target to each
menu item and implement a validation handler on that target.
That seemed to mess with the responder chain when I briefly
experimented with it.
* There's some disabled code to add a Services menu. It is disabled
because when it is enabled, accessing either Services or Help
from the menu bar sends the process into a busy loop somewhere
in macOS's internals. It's unclear what it is unhappy with.
* No keyboard accelerators are associated with the menubar yet.
That needs some thought, as they would essentially become global
keyboard shortcuts and take precedence over the shortcuts defined
for other keys in the config. This feels like it should be something
that the user has control over, so there needs to be something to
allow that before we go ahead and wire those up.
refs: https://github.com/wez/wezterm/issues/162
refs: https://github.com/wez/wezterm/issues/1485
This allows removing a bunch of unwrap/expect calls.
However, my primary motive was to replace the cases where we used
Mux::get() == None to indicate that we were not on the main thread.
A separate API has been added to test for that explicitly rather than
implicitly.
Implement an app delegate to receive a callback when the system
requests that we open `.command` files, and then ask the mux
layer to spawn a window for it and execute it via the shell.
Also allow handling `.sh`, `.zsh`, `.bash`, `.fish` and `.tool`,
per kitty.
refs: https://github.com/wez/wezterm/issues/2741
refs: https://github.com/wez/wezterm/issues/2871
Using the new abstractions, we can call into webgpu code now.
It doesn't do anything useful, and in fact crashes because
the mapping of the quads is doing the wrong thing.
Will fix in the next commit.
The recent changes to clustering make this more likely to happen.
This doesn't handle overflow resulting from changing styles in the tab
title, but those are less common.
refs: https://github.com/wez/wezterm/issues/2560
Since we're no longer tied to contiguous Vertex slices, we can
record the Quad data used for HeapQuadAllocator in a smaller structure,
so that's what this does.
It reduces the per-Quad storage from 272 bytes down to 84 bytes,
which helps with overall memory usage: the default cache size is 1024
lines worth of quads, so this can add up to multiple MB of RAM.
refs: https://github.com/wez/wezterm/issues/2626
This reduces peak heap usage by several MB by making better use
of allocated memory--no wasted overhead in the Vec capacity.
refs: https://github.com/wez/wezterm/issues/2626
When a line is rapidly updated with only some of the cells being
actually changed (eg: progress counter or other status being frequently
updated), it is desirable to avoid paying the cost of shaping the entire
line.
When bidi is not enabled we can assume that it is safe to break clusters
on whitespace boundaries. Doing so allows each of those whitespace
separated words to be shaped and potentially cached independently,
which reduces the amount of CPU time spent for the whole line.
This commit just adjusts the clustering, which reduces the CPU
utilization a bit.
refs: https://github.com/wez/wezterm/issues/2701
Do it "more properly": use intrusive list linkage to manage three
indices:
* hash lookup
* recency
* frequency
eviction is frequency based, but in order to avoid things that were
super hot in the past and that are no longer hot clogging up the cache,
eviction will incrementally age out least recently used entries that
haven't been active in the span of some number of get/put operations.
Aging scales down the frequency value to reduce its strength, so an aged
item isn't necessarily immediately a candidate for removal, it just
makes it more likely to be picked up by the frequency based removal as
it goes unused for an extended period.
Right now wezterm already allows to pass a cmdline to execute (instead
of the shell) by calling "wezterm start" with trailing arguments, e.g.
wezterm start -- bash
However, most other terminals implement this via a "-e" option. This
seems to be adopted widely in the wild, such that some third-party
frameworks just blindly expect the user's terminal to use the "-e"
option for this.
One such notable framework is kio from KDE Plasma, that calls the user's
terminal in that way when launching a desktop file that uses
Terminal=true. [1]
To solve this problem, we add a compatibility layer by adding a dummy
"-e" option. This will then consume the "-e" leaving the remaining
arguments as trailing arguments, which will later be consumed by our
existing implementation in the "prog" option.
Given that clap does not really support multiple arguments writing to
the same destination [2], this seems like the most sane implementation,
even if it is a hack.
It seems to work reliable, even for edge cases where we pass wezterm
options as trailing arguments, e.g. the following will just work and do
the expected outcome (and will **not** parse "--position" as a wezterm
argument):
wezterm start -e echo --position 10,10
Fixes#2622
[1] https://bugs.kde.org/show_bug.cgi?id=459616
[2] https://github.com/clap-rs/clap/issues/3146
I can't think of a good reason for this being here. I think I
may have been lazy about resolving the lifetime annotations
and just stuck in an extra buffer while building the original
version of this logic, and then forgot about it.
This commit resolves the lifetime annotations and directly
references the passed in buffer.
refs: https://github.com/wez/wezterm/issues/2626
I spent a few hours in heap profilers. What I found was:
* Inefficient use of heap when building up runs of
`Action::Print(char)`.
-> Solve by adding `Action::PrintString(String)`
and accumulating utf8 bytes rather than u32 codepoints.
* Inefficient use of heap when building Quad buffers: the default
exponential growth of `Vec` tended to waste 40%-75% of the allocated
capacity, and since we could keep ~1024 of these in cache, there's
a lot of potential for waste.
-> Solve by bounding the growth to 64 at a time. This has similar
characteristics to exponential growth at the default 80x24 terminal
size. May need to add a config option for this step size for users
with very large terminals.
* Lazy eviction from the LFU caches. The underlying cache advisor is
somewhat probabilistic and has a minimum cache size of 256, making
it difficult to maintain low heap utilization.
-> Solve by replacing it with a very simple LFU algorithm. It doesn't
seem to hurt much at the default terminal size with the default
cache sizes. If we make the cache sizes smaller, its overhead is
reduced.
Some further experimentation is needed to adjust defaults, but this
should help reduce heap usage.
refs: https://github.com/wez/wezterm/issues/2626
It can be helpful for debugging purposes.
The socket can be discovered by setting:
WEZTERM_LOG=wezterm_mux_server_impl::local=trace,info
to get it to log a line like:
```
setting up /Users/wez/.local/share/wezterm/gui-sock-38183
```
Then it can be helpful to do:
```
WEZTERM_UNIX_SOCKET=/Users/wez/.local/share/wezterm/gui-sock-38183 wezterm cli list
```
to see what is in the gui's mux model.
refs: https://github.com/wez/wezterm/issues/2616
