checkout seems to be failing for ubuntu 20 recently:
```
Deleting the contents of '/__w/wezterm/wezterm'
Initializing the repository
/usr/bin/git init /__w/wezterm/wezterm
Initialized empty Git repository in /__w/wezterm/wezterm/.git/
/usr/bin/git remote add origin https://github.com/wez/wezterm
Error: fatal: unsafe repository ('/__w/wezterm/wezterm' is owned by someone else)
To add an exception for this directory, call:
git config --global --add safe.directory /__w/wezterm/wezterm
Error: The process '/usr/bin/git' failed with exit code 128
```
Try reverting this as a workaround.
I wanted to use the Target::Pipe feature of env_logger so that we could
log to a log file as well as stderr, but it just doesn't work
(https://github.com/env-logger-rs/env_logger/issues/208).
Since we were already composing over the top of the logger in order
to capture data for our ringlog, this commit embraces that and makes
our logger responsible for both stderr and log file printing.
Thankfully, we can use the filter parsing code from env_logger to
avoid having to get too crazy with this.
Logs are stored in the runtime directory and look something like:
/run/user/1000/wezterm/wezterm-gui-log-596324.txt
Logs are collected on all platforms.
There isn't currently a thing to clean up logs.
The keys section was way too big; this splits it up into more
manageable pieces, adds a nice flow chart to show how key events
are processed and adds an example of using the new key tables feature.
This is a bit more compact and easier to edit.
A downside is that the search engine highlight can break the diagram and
cause it to emit a syntax error.
The centos8 builds have been failing today, and it appears to
be because https://www.centos.org/centos-linux-eol/ happened
about 3 years early and the URLs in the image are hard-broken.
https://forums.centos.org/viewtopic.php?f=54&t=78708 has some
info on re-pointing them to a vault subdomain.
The "right" thing to do is to migrate to centos 8 stream, but
I don't see a centos stream docker image from centos.
This commit attempts the manual migration steps to stream.
Let's see how this goes.
This commit switches back to wezterm-icon.svg as the source of
the icon, but modifies it:
* Removed mac style title bar + window manipulation icons
* Increases the corner radius
* Adjusts the text position and size
This makes it somewhere between the original and one of the alternate
icons in 98b71cbfb6
I chose to modify the original source as it didn't have padding
baked into the svg file, and I didn't feel like wrestling with
the contributed svg in inkscape to remove it.
This commit adds plumbing to support mapping the process tree to
lua objects which in turn allows a new `mux-is-process-stateful`
event to be defined by the user for finer control over closing
prompt behavior.
refs: #1412
