macportsmissing

#!/usr/bin/env bash
#######################################################################
# Made by    : Ewoud Dronkert
# Licence    : GNU GPL v3
# Platform   : macOS
# Requires   : bash, MacPorts, grep, awk, sed
# Location   : ~/bin/, /usr/local/bin
# Name       : macportsmissing
# Version    : 1.0.2
# Date       : 2020-10-30
# Purpose    : Check if all py38 packages also exist as py39
#######################################################################

SEARCH='py38'
REPLACE='py39'
PRESENT=0
MISSING=0

echo "MacPorts packages installed for ${SEARCH}, missing for ${REPLACE}:"
for NAME in $(port installed | grep -F "${SEARCH}" | awk '{print $1}' | sed "s/${SEARCH}/${REPLACE}/")
do

	# Search result will show package name at the start if found
	if port search "${NAME}" | grep -q "^${NAME}"; then
		(( PRESENT++ ))
	else
		(( MISSING++ ))
		echo "${NAME}"  # show missing package
	fi

done
echo

if (( MISSING > 0 )); then
	echo "Present: ${PRESENT}"
	echo "Missing: ${MISSING}"
	echo "To test which installed ports recursively depend on '${SEARCH}-example', use:"
	echo "    port rdependents ${SEARCH}-example"
elif (( PRESENT > 0 )); then
	echo "All ${PRESENT} installed ${SEARCH} ports are available for ${REPLACE}."
else
	echo "No ports are installed for ${SEARCH}."
fi