History is not updated when running multiple commands in the same line

[liuml07]

Environment

$ fish --version
fish, version 3.4.1
$ echo $version
3.4.1
$ uname -a
Darwin Mingliangs-MacBook-Pro-M1-Max.local 21.4.0 Darwin Kernel Version 21.4.0: Fri Mar 18 00:46:32 PDT 2022; root:xnu-8020.101.4~15/RELEASE_ARM64_T6000 arm64
$ echo $TERM
xterm-256color

Problem

Running following commands, I got "true". I expect "false".

$ sh -c 'env HOME=$(mktemp -d) fish'
$ true
$ false; echo $history[1]
true

[faho]

false; echo $history[1] is one entry in the history.

The history is updated per-commandline.

[krobelus]

yeah I think this is the least surprising behavior.

If there is a concrete use case, we have a mechanism for tracing every individual process (set fish_trace 1) that we could perhaps repurpose but it's probably not worth it.

[liuml07]

Thanks for the context.

Is there a way I can get the last command (false) in the same command line?

[faho]

There is no way to change this behavior so that foo; bar counts as two different history elements, or that true and then false count as one history element.

You haven't really explained what you want to do here, so we can't say any more.

[liuml07]

Probably I'm asking a XY question. This probably should be a user question instead of an issue.

I will get email after foo completes using command foo; notify. I now want to know the last command foo from "notify" fish function so the notification is for foo. Running bar; notify will be sending notification including bar.

"notify" includes $status which is for command "foo" but $history[1] is not foo.

I now learnt history is for per-commandline and it makes sense to me. Thanks

[krobelus]

I just type foo Enter notify Enter.
A wrapper script (like notify foo) would be a cross-shell solution.
Another potential solution is a post-exec hook (function --on-event fish_postexec)

Though I think it's weird that there is no way to access the commandline while the command is running.

$ sleep 3 && echo done, command: (status current-command) commandline: (commandline)
done, command: sleep commandline:

so status current-command works but neither commandline nor history do.

Probably this is best exposed as status current-commandline.

[liuml07]

Thanks for providing solutions. They work for me!

I now start using the two solutions both: 1) I added a post-exec hook for command long commands like mvn package and newt ci tail etc, and 2) I will type foo Enter notify Enter for ad hoc commands.