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lib/preexec: clarify subshell guard and comment

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Rewrite comment on disabling the `DEBUG` trap in subshells, which is now handled upstream as of rcaloras/bash-preexec#26.

Alsö, fix the guard variable assignment to allow it to be overridden elsewhere (e.g., for testing).
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John D Pell
2022-01-30 11:37:18 -08:00
parent a93919625d
commit c1943192ce
1 changed files with 3 additions and 2 deletions
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lib/preexec.bash
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@@ -17,8 +17,9 @@ function __bp_adjust_histcontrol() { :; }
# Don't fail on readonly variables
function __bp_require_not_readonly() { :; }
# Disable trap DEBUG on subshells - https://github.com/Bash-it/bash-it/pull/1040
__bp_enable_subshells= # blank
# For performance, testing, and to avoid unexpected behavior: disable DEBUG traps in subshells.
# See bash-it/bash-it#1040 and rcaloras/bash-preexec#26
: "${__bp_enable_subshells:=}" # blank
# Modify `$PROMPT_COMMAND` in finalize hook
_bash_it_library_finalize_hook+=('__bp_install_after_session_init')