[OpenWrt-Devel] Hang on setting $PROMPT in master

[Koen Vandeputte]

On 21.10.19 17:04, Martin Tippmann wrote:
> We are using a shell-function to set the prompt based on return code -
> it works fine in 17.01 / 18.06 / 19.07, however in current master when
> the function is run the terminal/ssh session hangs.
>
> how to reproduce:
>
>
>
> <--- hang.sh:
> #!/bin/sh

You could add following line here to check where it hangs:

set -x

> prompt_set() {
>     face() {
>      local rc=$?
>      case "$rc" in
>         0) printf '%s' "$1" ;;
>         *) printf '%s' "$2" ; return $rc ;;
>        esac
>     }
>
>     local e='\[\e' # start escape-sequence
>     local c='\]' # close escape-sequence
>
>     local user='\u'
>     local wdir='\w' # workdir
>     local host='\h' # short form
>
>      local reset="${e}[0m${c}" # all attributes
>      local white="${e}[37m${c}"
>      local cyan="${e}[36m${c}"
>      local yellow="${e}[33;1m${c}" # bold
>      local green="${e}[32m${c}"
>      local red="${e}[31m${c}"
>
>      local ok="${green}:)"
>      local bad="${red}8("
>
>     # e.g. user at hostname:~ :)
>     export PS1="${cyan}${user}$white@${green}$host:${yellow}$wdir \$(
> face '$ok' '$bad' ) $reset"
> }
>
> prompt_set
> -->
>
> now source the file:
>
> . ./hang.sh
>
> shellcheck does not complain - I'm writing because I'm not sure wether
> this invalid sh that happened to work anyway or is this a
> bug/regression in ash?
>
> regards
> Martin
>
> _______________________________________________
> openwrt-devel mailing list
> openwrt-devel at lists.openwrt.org
> https://lists.openwrt.org/mailman/listinfo/openwrt-devel

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