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fff8e8163b
Commit 5f849d0 changed control-C to print an inverted ^C and then a newline.
The original motivation was
> In bash if you type something and press ctrl-c then the content of the line
> is preserved and the cursor is moved to a new line. In fish the ctrl-c just
> clears the line. For me the behaviour of bash is a bit better, because it
> allows me to type something then press ctrl-c and I have the typed string
> in the log for further reference.
This sounds like a valid use case in some scenarios but I think that most
abandoned commands are noise. After all, the user erased them. Also, now that
we have undo that can be used to get back a limited set of canceled commands.
I believe the original motivation for existing behavior (in other shells) was
that TERM=dumb does not support erasing characters. Similarly, other shells
like to leave behind other artifacts, for example when using tab-completion
or in their interactive menus but we generally don't.
Control-C is the obvious way to quickly clear a multi-line commandline.
IPython does the same. For the other behavior we have Alt-# although that's
probably not very well-known.
Restore the old Control-C behavior of simply clearing the command line.
Our unused __fish_cancel_commandline still prints the ^C. For folks who
have explicitly bound ^C to that, it's probably better to keep the existing
behavior, so let's leave this one.
Previous attempt at #4713 fizzled.
Closes #10213
43 lines
953 B
Python
43 lines
953 B
Python
#!/usr/bin/env python3
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import os
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from pexpect_helper import SpawnedProc
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import signal
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sp = SpawnedProc()
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send, sendline, sleep, expect_str, expect_prompt = (
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sp.send,
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sp.sendline,
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sp.sleep,
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sp.expect_str,
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sp.expect_prompt,
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)
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expect_prompt()
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timeout = 0.15
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if "CI" in os.environ:
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# This doesn't work under TSan, because TSan prevents select() being
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# interrupted by a signal.
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import sys
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print("SKIPPING cancel_event.py")
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sys.exit(0)
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# Verify that cancel-commandline does what we expect - see #7384.
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send("not executed")
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sleep(timeout)
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os.kill(sp.spawn.pid, signal.SIGINT)
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sendline("echo marker")
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sp.expect_str("marker")
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expect_prompt()
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sendline("function cancelhandler --on-event fish_cancel ; echo yay cancelled ; end")
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expect_prompt()
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send("still not executed")
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sleep(timeout)
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os.kill(sp.spawn.pid, signal.SIGINT)
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expect_str("yay cancelled")
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sendline("echo marker")
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sp.expect_str("marker")
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expect_prompt()
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