Overloading cd with function that outputs text breaks default YASH_PS1R prompt

• Reporter: kusalananda
• 소유자: magicant
• Type: Bugs
• Status: Closed
• Component: shell-main
• MileStone: (None)
• Priority: 5 - Medium
• Severity: 5 - Medium
• Resolution: Fixed
• File: None

Details Reply

If one creates a cd function like so:

cd () { command cd "$@"; echo "$PWD"; }

while running yash with no .yashrc or .yash_profile file, then the call to cd -P .. in the _update_vcs_info function will cause YASH_PS1R to be set to data outputted by the custom cd function.

To fix this, do command cd -P .. or command -b cd -P .. in the _update_vcs_info function in share/initialization/common to avoid calling a user-supplied function.

This have been observed in yash 2.49 (default on OpenBSD), 2.50, and 2.51, but may have been present before 2.49 too.

Ticket History (3/3 Histories)

2020-12-20 03:29 Updated by: kusalananda

• New Ticket "Overloading cd with function that outputs text breaks default YASH_PS1R prompt" created

2020-12-20 03:33 Updated by: kusalananda

댓글 올리기 Reply

Found while answering a Unix&Linux question: https://unix.stackexchange.com/a/625232/116858

2020-12-21 22:56 Updated by: magicant

• Resolution Update from None to Fixed
• Status Update from Open to Closed

댓글 올리기 Reply

Fixed in r4159

Some completion scripts will still break with a user-defined cd function. I don't think such a function is very useful in yash.

Thanks