(#9) Modified workflows and scripts for version checking:

* There will be only one success mark at commits now for version checking (I hope).

.github/scripts/VersionCheck_feature.sh

@@ -0,0 +1,133 @@
+#!/bin/bash
+
+# Printing the script header
+printf "\nRunning a script which is checking whether the current version of\n"
+printf "the release is different from the previous version of the release.\n\n"
+
+# Specifying a name of a feature branch
+FEATURE_BRANCH_NAME="feature"
+
+# Specifying a name of a temporary folder
+TMP_FOLDER_NAME="tmp"
+
+# Specifying the inital number of errors
+ERROR_COUNT=0
+
+# Specifying version checking functions
+
+function version_check_ipynb {
+
+     printf "\nRunning a version checking function for the following file:\n"
+     echo "$1"
+
+     if grep -q "Release version: \[$CURRENT_TAG]" $1 && grep -q "releases/tag/v$CURRENT_TAG" $1; then
+
+          printf "\nThe version in this file is matching to the current one.\n"
+
+     else
+
+          printf "\nThe version in this file is NOT matching to the current one.\n"
+          ERROR_COUNT=$((ERROR_COUNT+1))
+
+     fi
+
+}
+
+function version_check_zip_ipynb {
+
+     printf "\nRunning a version checking function for the following file:\n"
+     echo "$2,"
+     printf "which is located in the following .zip archive:\n"
+     echo "$1"
+
+     # Creating a tmp directory if not created
+     if [ ! -d $TMP_FOLDER_NAME ]; then
+          mkdir $TMP_FOLDER_NAME
+
+     # Deleting all files from the temporary directory
+     else
+          rm -rf tmp/*
+     fi
+
+     printf "\nUnpacking the file to the temporary directory...\n"
+
+     # Unpacking the zip file
+     unzip -q "$1" -d $TMP_FOLDER_NAME
+
+     if grep -q "Release version: \[$CURRENT_TAG]" tmp/$2 && grep -q "releases/tag/v$CURRENT_TAG" tmp/$2; then
+
+          printf "\nThe version in this file is matching to the current one.\n"
+
+     else
+
+          printf "\nThe version in this file is NOT matching to the current one.\n"
+          ERROR_COUNT=$((ERROR_COUNT+1))
+
+     fi
+
+}
+
+function run_version_checks {
+
+     version_check_ipynb "Notebooks/Base/celerite/Revised/celerite.ipynb"
+     version_check_ipynb "Notebooks/Base/george/george.ipynb"
+
+     version_check_zip_ipynb "Archives/Notebooks.zip" "Notebooks/Base/celerite/Revised/celerite.ipynb"
+     version_check_zip_ipynb "Archives/Notebooks/Base.zip" "Base/celerite/Revised/celerite.ipynb"
+     version_check_zip_ipynb "Archives/Notebooks/Base.zip" "Base/george/george.ipynb"
+
+}
+
+# Checking out to master
+git checkout -q master
+
+# Saving an output of the next command in a variable
+MASTER_TAG="$(git describe --tags master)"
+
+printf "Master tag:\n"
+echo $MASTER_TAG
+
+# Checking out to the feature branch
+git checkout -q $FEATURE_BRANCH_NAME
+
+# Getting the current release tag
+CURRENT_TAG="$(grep -o "\-.*\-" README.md | sed 's/-//g')"
+
+printf "\nCurrent tag from README.md:\n"
+echo $CURRENT_TAG
+
+# Checking if the current tag is changed
+if [ $CURRENT_TAG == $MASTER_TAG ]; then
+
+     printf "\nThe current tag and the master tag are equal."
+     printf "\nAdjust the current tag according to Semantic Versioning.\n\n"
+
+     exit 1
+
+fi
+
+# Escaping dots in CURRENT_TAG variable
+CURRENT_TAG="$(echo $CURRENT_TAG | sed 's/v//' | sed 's/\./\\./g')"
+
+# Checking if another tag in README.md is the same
+if ! grep -q "releases/tag/v$CURRENT_TAG" README.md; then
+
+     printf "\nThe specified tags are different in README.md.\n\n"
+
+     exit 1
+
+fi
+
+# Running version checks for files and archives
+run_version_checks
+
+if [ "$ERROR_COUNT" -gt 0 ]; then
+
+     printf "\nNumber of errors: $ERROR_COUNT\n\n"
+     exit 1
+
+else
+
+     printf "\nEverything is okay.\n"
+
+fi