Added a Bash script to increment or decrement build numbers.

inc_or_dec_build_numbers.sh

@@ -0,0 +1,84 @@
+#!/bin/bash
+#Following the the spec set here https://semver.org/ (2.0.0)
+#we have three parts to a version number:
+major=0
+minor=0
+patch_level=0
+#And there is a fourth additional label for the build metadata.
+#These labels are for pre-release and build metadata.
+meta=0
+		
+folder=$(dirname "$1")
+parent_folder=$(basename "$folder")
+#Capitalize the folder name so it matches the format in the C #define files.
+parent_folder=${parent_folder^^}
+
+define_count=0
+file_contents=""
+#Looping code from
+#https://stackoverflow.com/questions/10929453/read-a-file-line-by-line-assigning-the-value-to-a-variable
+#Adding numbers in bash:
+#https://stackoverflow.com/questions/6348902/how-can-i-add-numbers-in-a-bash-script
+while IFS=' ' read -ra line; do
+	if [[ $line != \#define* ]] 
+	then
+		continue
+	fi
+	#Lob off the quotes surrounding the version number.
+	#version_number="${line[2]:1:-1}"
+	version_number=($(echo ${line[2]:1:-1} | tr "-" "."))
+	#The symbol name that #define was setting (i.e. KERNEL_VERSION_NUMBER).
+	symbol=${line[1]}
+	
+	for i in "${my_array[@]}"
+	do
+		echo $i
+	done
+	
+	IFS='.' read -a chunks <<<$version_number
+	
+	version_part_counter=0
+	
+	for i in "${chunks[@]}"; do
+		
+		case "$version_part_counter" in
+		"0")
+			major=$i
+			;;
+		"1")
+			minor=$i
+			;;
+		"2")
+			patch_level=$i
+			;;
+		"3")
+			#Check to see if a second parameter has been passed.
+			#It doesn't matter what its value is only that one is present.
+			#If there isn't a second parameter set, then we increment the meta build
+			#number, otherwise we decrement.
+			if [ "$2" == "" ]
+			then
+				meta=$(($i + 1))
+			else
+				if [ $meta > 0 ]
+				then
+					meta=$(($i - 1))
+				fi
+			fi
+			;;
+		esac
+		
+		version_part_counter=$(($version_part_counter + 1))
+	done
+	
+	ver="$major.$minor.$patch_level-$meta"
+	tmp="#ifndef ${symbol}\n#define ${symbol} \"$ver\"\n#endif\n"
+
+	file_contents="$file_contents$tmp"
+	
+	define_count=$(($define_count + 1))
+done < "$1"
+
+printf "$file_contents"
+echo "$1"
+printf "$file_contents" > "$1"