Define a way to compute a client ID and pass that through to the
mux server when verifying version compatibility.
Once associated, the session handler will keep some metadata
updated in the mux.
A new cli subcommand exposes the info:
```
; ./target/debug/wezterm cli list-clients
USER HOST PID CONNECTED IDLE WORKSPACE
wez mba.localdomain 52979 30.009225s 1.009225s
```
refs: #1531
This is a similar race condition to one we had before with the
multiplexer, where the connection UI made us think that we didn't
need to start a new process.
Additionally, the attach method would unconditionally create a
new client without checking whether we already had one.
In the case that the published symlink is stale, our default
client connection logic was to retry connecting with backoff
to give a newly spawned server a chance to startup.
In the context of a newly launched gui process checking to see
if an existing gui process can serve the same request, we don't
need to give it any grace: it will either answer immediately
or be deemed not useful.
This commit limits us to a single connection attempt in the case
where we're not automatically starting the server, which in turn
constrains the overhead to something in the order of microseconds
rather than nearly 0.5 seconds.
While we're in here, I noticed that if we thought we had a socket
to try and that failed, we'd always try to publish a new symlink.
However, if we failed due to mismatched version info, we shouldn't
publish over the top of the already running instance.
refs: #1529
user vars were stubbed out. This commit adds storage for them
in the mux client and adds a new notification that publishes each
var as it is changed. That differential stream is applied to the
storage in the mux client when it is received.
```lua
local wezterm = require 'wezterm'
wezterm.on("update-right-status", function(window, pane)
local woot = pane:get_user_vars().woot
window:set_right_status(tostring(woot))
end);
return {
unix_domains = {
{name="unix"},
},
}
```
then running:
* `wezterm connect unix`
* in that session: `printf "\033]1337;SetUserVar=%s=%s\007" woot `echo -n nice | base64``
causes `nice` to show in the status area.
refs: #1528
This is slightly misusing or misattributing things, but in
the context of the problem at hand, it is OK.
The issue is that palette changes are normally signalled by
the terminal instance in response to escape sequences. Those
changes are propagated to the mux client through the existing
alerting channel.
If the palette is changed implicitly via a config change, then
the terminal doesn't trigger that alert and the mux client(s)
don't know that they need to refresh the palette.
This commit tracks the last config generation per pane and
synthesizes a palette alert when it changes.
It might be better to have another variant of alert to indicate
config changes.
refs: #1526
This doesn't make a huge difference; I think we already addressed
the worst of the overhead with a combination of
eae327efcc
and the more recent commits to avoid over invalidation around
cursor movement and screen scrolling.
The numbers I see are a very small number of bytes per second when
scrolling through eg: vim and aren't crazy or alarming.
So I'm going to consider the related issue resolved!
closes: https://github.com/wez/wezterm/issues/867
If we know that the remote host is a unix system, and that it uses some
version of the posix shell, then we can adjust our command line to cd to
the requested directory (as set by OSC 7) and then exec the requested
command.
That's what SshDomain::assume_unix indicates and what this commit does.
This puts us in a better position for the future to be able
to configure whether we use wezterm, tmux or no multiplexing.
Today we allow wezterm or no multiplexing.
Add docs on this new setting.
refs: https://github.com/wez/wezterm/issues/1456
If an ssh domain is set to use_multiplexer=false, it is now
possible to `wezterm connect` to it.
Previously, it was only possible to connect to domains that
used the mux client.
refs: https://github.com/wez/wezterm/issues/1456
If we decide we want re-use and existing gui due to config differences
we shouldn't then publish the new, differently configured, gui as
the canonical path for that display/class.
Clarify the message that we print when re-using an existing gui
in case someone doesn't want that behavior.
That top level config/src/lib.rs has been too big for too long.
Break it up a little.
(I recommend running `cargo clean` if you're updating across
this change to avoid a rust ICE with it cached on-disk state)
Previously, it would skip loading the initial config and allow
loading it later by using the reload hotkey. That reload behavior
was an accident!
Another problem with the old approach is that everything else was
set up as if the config had been loaded, which is now causing
confusion for code that wants to decide whether we are using
that configuration or not.
This commit formalizes the skip by remembering that state globally.
This change helps to simplify some special cases around command
line overrides as well, as well as allows cli overrides to take
effect when the user doesn't have a config file.
When a dead key is composing, we gave no information about what was
composing. Contrast with Windows and macOS where we show the first
key in the composition as part of that state.
This commit makes an attempt to populate equivalent information.
It's a bit more complex with the xkeyboard stuff as there can be
multiple combining sequences and there's no guarantee that we can
show a meaningful label.
We try our best for the common case of a single dead key, and have
a probably reasonable fall back for other cases where we don't
other get that information.
This allows removing DeadKeyStatus::Holding.
They have their own versions of these options, and logically it doesn't
make sense to use the default_prog from the `local` domain with a wsl
domain.
refs: #1242
This returns the default set of domains that would be populated
in the wsl_domains config. This is useful if you want to override
eg: the default_prog for specific domain(s), or want to otherwise
add additional variations on the default list.
When set, changes the default domain to the domain with the specified
name, which potentially affects the default program.
eg: default_domain = "WSL:Ubuntu-18.04" will cause the initial tab
to be spawned via WSL.
