Andrew Gregory da68447ec6 set bash env variables before running scripts ... Bash sources user configuration files under a number of conditions that can cause issues with scripts when bash is used as the scriptlet shell. Bash assumes it's being run under rsh/ssh if stdin is connected to a socket and sources the user bashrc unless the environment variable $SHLVL is >= 2. Commit 6a4c6a02de switched from pipes to sockets when communicating with child processes to work around SIGPIPE issues. Normally $SHLVL would be inherited from the shell running pacman, but operations involving scriptlets are generally run with sudo which does not let the $SHLVL variable through unless specifically configured to. Similarly $BASH_ENV can cause bash to source user-specified configuration files if set. https://lists.gnu.org/archive/html/help-bash/2022-02/msg00082.html Note: the list discussion and bash source all reference SHLVL >= 2, this is the SHLVL value *after* bash has incremented it on startup. Setting it to 1 in pacman is sufficient to disable the unwanted behavior. Signed-off-by: Andrew Gregory <andrew.gregory.8@gmail.com>		2022-10-15 10:40:59 -07:00
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libalpm	set bash env variables before running scripts	2022-10-15 10:40:59 -07:00