ensure that all pending writes are flushed on :write and :write-all

[lpoirothattermann]

Fix for #10765

First issue, first time with Rust.

[pascalkuthe]

This is not the right way to fix this issue. This flushes all writes when :wa is used. Writes should not be flushed unless we are exiting helix (this potentially freezes the editor).

It also doesnt solve th problem for :w

As described jn that issue writes should be flush in the suspend command bound to c-z

[kirawi]

Since the non-typable commands don't use the compositor::Context, you'll need to create a compositor::Context out of the fields in commands::Context to get access to the flush method without needing to reimplement the method on the commands::context. Like so:

let mut cx = compositor::Context {
    editor: cx.editor,
    jobs: cx.jobs,
    scroll: None,
};

You need to modify

helix/helix-term/src/commands.rs

Lines 5829 to 5832 in 2301430

	fn suspend(_cx: &mut Context) {
	#[cfg(not(windows))]
	signal_hook::low_level::raise(signal_hook::consts::signal::SIGTSTP).unwrap();
	}

[PotatoesFall]

@kirawi I took your feedback here and made an MR of my own: #10797