Finished templating. Now it's only a matter of adding more themes!

source/templates/use_scheme.sh

@@ -0,0 +1,56 @@
+#! /bin/bash
+
+# exit when any command fails
+set -e
+
+usage () {
+    echo -e "\nUsage:"
+    echo -e $(basename "$0") "name_of_color_scheme_file.sh\n"
+    echo -e "Changes current color scheme for Skewaita, using the specified color scheme bash file."
+    echo -e "After this step, you need to rebuild the theme:"
+    echo -e 'go up one directory, to "source", and execute "./compile.sh light" or "./compile.sh dark" depending on whether the theme is light or dark\n'
+}
+
+
+# Check for correct parameters and the existence of color scheme file
+
+if [[ $# -ne 1 ]]
+then
+	usage
+	exit 1
+fi
+
+filename=$1
+
+# if color scheme filename provided does not include .sh extension, add it
+[[ "$filename" == *.sh ]] || filename="$filename.sh"
+
+echo -e "\nReading color scheme from file '$filename'\n"
+
+
+source $filename
+
+# envsubst <_theme_colors.scss >theme_colors_.scss.processed # not working!
+
+echo "New color scheme read; processing template files..."
+
+for FILE in "_theme_colors.scss" "gtkrc" ; do
+	echo "   processing $FILE..."
+	while read -r line ; do
+    	while [[ "$line" =~ (\$\{[a-zA-Z_][a-zA-Z_0-9]*\}) ]] ; do
+        	LHS=${BASH_REMATCH[1]}
+        	RHS="$(eval echo "\"$LHS\"")"
+        	line=${line//$LHS/$RHS}
+    	done
+    	echo "$line" 
+	done < "$FILE" > "$FILE.processed"
+done
+
+echo "Done; copying processed files"
+
+cp _theme_colors.scss.processed ../common/_theme_colors.scss
+cp gtkrc.processed ../../gtk-2.0/gtkrc
+echo -e "\nSUCCESS\n"
+echo "Now you need to rebuild the theme:"
+echo -e 'go up one directory, to "source", and execute "./compile.sh light" or "./compile.sh dark" depending on whether the theme is light or dark\n'
+