Gracefully exit when ghci exits

[9999years]

Note that this won't gracefully exit until a reload is triggered, though.

[linear]

DUX-1385 Error when underlying process was killed

I got this output:

[6641 of 6641] Compiling TestMain         ( test/TestMain.hs, interpreted ) [EnumsSpecTest changed]
Ok, 6641 modules loaded.

Error: cabal: repl failed for lib:test-dev from mwb-0. The build process was
killed (i.e. SIGKILL). The typical reason for this is that there is not enough
memory available (e.g. the OS killed a process using lots of memory).

• Adding new modules to ghci:
  • /home/matt/Projects/.../Handler.hs

ErrorHook { error: Handler { ctx: "action worker", err: "  \u{1b}[31m×\u{1b}[0m Broken pipe (os error 32)\n" }, critical: OnceCell(Uninit) }

It's unclear that we should just boot-loop here.

[9999years]

Current dependencies on/for this PR:

• main
  • PR Gracefully exit when ghci exits #95 👈
    • PR Graceful shutdown #97

This comment was auto-generated by Graphite.

[Gabriella439]

What sort of thing tends to cause ghci to fail and hit this code path? The reason I'm asking is to see if it's worth restarting ghci instead of gracefully exiting, but what you have already looks good to me.

[9999years]

@Gabriella439 It's in the Linear ticket. Matt hit an OOM or something:

[6641 of 6641] Compiling TestMain         ( test/TestMain.hs, interpreted ) [EnumsSpecTest changed]
Ok, 6641 modules loaded.

Error: cabal: repl failed for lib:test-dev from mwb-0. The build process was
killed (i.e. SIGKILL). The typical reason for this is that there is not enough
memory available (e.g. the OS killed a process using lots of memory).

• Adding new modules to ghci:
  • /home/matt/Projects/.../Handler.hs

ErrorHook { error: Handler { ctx: "action worker", err: "  \u{1b}[31m×\u{1b}[0m Broken pipe (os error 32)\n" }, critical: OnceCell(Uninit) }

[Gabriella439]

ah yeah in that case you probably wouldnt be able to recover by restarting

The base branch was changed.

[github-actions]

A PR to release these changes has been created, bumping the version from 0.3.4 to 0.3.5.