ci: add bash/zsh script to automate requirements*.txt files

scripts/create_requirements.sh

@@ -0,0 +1,40 @@
+#!/usr/bin/env bash
+
+SCRIPT=$(realpath "$0")
+REQUIREMENTS_NO_VERSION=$(realpath "$1") | $(realpath "./requirements_no_versions.txt")
+SCRIPT_FOLDER=$(dirname "$SCRIPT")
+ROOT_FOLDER=${SCRIPT_FOLDER}/../
+echo "# REQUIREMENTS_NO_VERSION: ${REQUIREMENTS_NO_VERSION} #"
+
+mkdir -p tmp
+rm ./tmp/requirements_tmp.txt || echo "./tmp/requirements_tmp.txt not found!"
+
+echo "start requirements.txt preparation: pip freeze..."
+pip freeze > ./tmp/freeze.txt
+echo "grep python dependencies into freeze.txt..."
+for f in $(ls requirements_no_versions*.txt); do
+  for x in $(cat ./$f); do
+    echo "# $x #"
+    grep $x ./tmp/freeze.txt >> ./tmp/${f}_tmp.txt
+    echo "# done line '$x' #"
+  done
+  echo "# file '$f' ##" >> ./tmp/requirements_tmp.txt
+  sort -u ./tmp/${f}_tmp.txt >> ./tmp/requirements_tmp.txt
+  echo "# processed file '$f' ##" >> ./tmp/requirements_tmp.txt
+  echo "# ==================== #" >> ./tmp/requirements_tmp.txt
+done
+
+
+echo "cat ${ROOT_FOLDER}/tmp/requirements_tmp.txt"
+cat ${ROOT_FOLDER}/tmp/requirements_tmp.txt
+echo -e "\n"
+
+[[ "$(echo -n 'Promote && sort "${ROOT_FOLDER}/tmp/requirements_tmp.txt" as new requirements.txt? [y/N]> ' >&2; read; echo $REPLY)" == [Yy]* ]] \
+  && echo "copy requirements_tmp.txt to root project..." \
+  || exit 0
+
+cp ${ROOT_FOLDER}/tmp/requirements_tmp.txt ${ROOT_FOLDER}/requirements.txt
+
+echo "Fix any discrepancy within the new requirements.txt, bye!"
+
+exit 0