Mini Shell

#!/usr/bin/bash

# RPM preun script
# Note: Also called from Debian alt-python27-cllib.prerm scriptlet
# Arguments:
# RPM
# "$1" == 0 -- RPM will uninstall package
# "$1" == 1 -- RPM upgrade/downgrade package
# DEB
# "$1" == "remove" - DEB will uninstall package
# "$1" == "upgrade" -- DEB
# Common
# $2 - python python_sitelib path - /opt/cloudlinux/venv/lib/python3.11/site-packages
# $3 - hook marker file - /usr/share/cloudlinux/hooks/.inuse.tmp

# "python-cllib PRE UNINSTALL STARTED"

# RPM/DEB argument unified interpreter
argument=''
if [[ "$1" == 0 || "$1" == "remove" ]]; then
	# "$1" == 0 -- RPM will uninstall package
	# "$1" == "remove" - DEB will uninstall package
	argument='uninstall'
elif [[ "$1" == 1 || "$1" == "upgrade" ]]; then
	# "$1" == 1 -- RPM upgrade/downgrade package
	# "$1" == "upgrade" -- DEB
	argument='upgrade'
else
	# Unknown argument (some special cases only for DEB. See alt-python27-cllib.prerm scriptlet for details),
	# skip all actions
	exit 0
fi;


# remove hooks in two cases:
# - when we uninstall package
# - when new package does not set marker
#   of universal hooks usage (may be too old)
# $1 == 0 means uninstall
if [[ "$argument" == 'uninstall' || ! -f "$3" ]]; then
    # during uninstall of package on this step system
    # contains uninstalling package files
    # during downgrade to old package which does not contain
    # hooks this code is running on system with both packages code
    # $1 == 1 means downgrade/upgrade
    if [[ "$argument" == 'upgrade' ]]; then
        # the root reason why we disable sentry here is yum,
        # which does not provide ability to call some code
        # from spec file of already installed package
        # before downgrade and we actually run 'hooks remove'
        # on 'dirty' system in the middle of package install transaction
        # and we got import errors when downgrading package
        # (see PTCLLIB-154 comments for some details)
        # as a complete solution we may move hooks to different package
        # but it seems that this case is very rare
        # and we can ignore possible problems
        # (who will downgrage cllib in the future?)
        export DISABLE_SENTRY=1
    fi;

    # /opt/cloudlinux/venv/lib/python3.11/site-packages/clcommon/public_hooks/bundle/hooks.py remove
    # remove hooks for supported control panels
    "$2"/clcommon/public_hooks/bundle/hooks.py remove

    rm -f "$3"
fi;

# "python-cllib PRE UNINSTALL FINISHED"
exit 0