Add IPC config subcommand

This patch adds a new mechanism for changing configuration options
without editing the configuration file, by sending options to running
instances through `alacritty msg`.

Each window will load Alacritty's configuration file by default and then
accept IPC messages for config updates using the `alacritty msg config`
subcommand. By default all windows will be updated, individual windows
can be addressed using `alacritty msg config --window-id
"$ALACRITTY_WINDOW_ID"`.

Each option will replace the config's current value and cannot be reset
until Alacritty is restarted or the option is overwritten with a new
value.

Configuration options are passed in the format `field.subfield=value`,
where `value` is interpreted as yaml.

Closes #472.

1 files changed, 1 insertions, 1 deletions

diff --git a/alacritty_terminal/src/tty/windows/mod.rs b/alacritty_terminal/src/tty/windows/mod.rs
index aa21ce14..57925f4c 100644
--- a/alacritty_terminal/src/tty/windows/mod.rs
+++ b/alacritty_terminal/src/tty/windows/mod.rs
@@ -27,7 +27,7 @@ pub struct Pty {
     child_watcher: ChildExitWatcher,
 }
 
-pub fn new(config: &PtyConfig, window_size: WindowSize, _window_id: Option<usize>) -> Result<Pty> {
+pub fn new(config: &PtyConfig, window_size: WindowSize, _window_id: u64) -> Result<Pty> {
     conpty::new(config, window_size)
         .ok_or_else(|| Error::new(ErrorKind::Other, "failed to spawn conpty"))
 }