Re: Bug: Subshell won't continue after .-sourcing a file

[Chet Ramey]

On 12/21/22 11:44 PM, Oğuz wrote:

22 Aralık 2022 Perşembe tarihinde Dan Church <h...@gmx.com> yazdı:

Repro:

    sub1=$(mktemp)
    sub2=$(mktemp)
    sub3=$(mktemp)

    echo '( echo "1st script executing" ; . '"$sub2"' ; echo "1st script
still executing" )' >"$sub1"
    echo 'echo "2nd script starting" && ${THIS_SH} '"$sub3" >"$sub2"
    echo 'echo "3rd script starting"' >"$sub3"

    . "$sub1"

"1st script still executing" will never be printed.

Or

     $ bash -c '(. <(echo ": && uname"); echo x)'
     Linux
     $

x is never printed. Looks like another bug caused by aggressive subshell
optimizations

Thanks for the reports, both of you. I've attached a patch.

Chet

--
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU    c...@case.edu    http://tiswww.cwru.edu/~chet/

*** ../bash-5.2-patched/builtins/evalfile.c     2019-07-20 16:16:08.000000000 
-0400
--- builtins/evalfile.c 2022-12-22 12:13:08.000000000 -0500
***************
*** 267,271 ****
  
    /* set the flags to be passed to parse_and_execute */
!   pflags = SEVAL_RESETLINE;
    pflags |= (flags & FEVAL_HISTORY) ? 0 : SEVAL_NOHIST;
  
--- 267,271 ----
  
    /* set the flags to be passed to parse_and_execute */
!   pflags = SEVAL_RESETLINE|SEVAL_NOOPTIMIZE;
    pflags |= (flags & FEVAL_HISTORY) ? 0 : SEVAL_NOHIST;