Add tool to find the version listed in a pom file

tools/find-pom-version.py

@@ -0,0 +1,57 @@
+import sys
+
+def print_usage():
+    print("Usage:")
+    print("This script looks for the version of a project within a POM file")
+    print("\n  find-pom-version.py <POM file path>")
+
+def find_version(line):
+    versionIndex = line.find("<version>")
+    if versionIndex >= 0:
+        endIndex = line.find("</version>")
+        return line[versionIndex+9:endIndex] if endIndex else line[versionIndex+9:]
+    return None
+
+if len(sys.argv) != 2:
+    print("\nERROR! Incorrect number of arguments provided (" + str(len(sys.argv)) + "), expected 1\n")
+    print_usage()
+    exit(1)
+
+lines = []
+
+with open(sys.argv[1], 'r') as pomFile:
+    lines = pomFile.readlines()
+
+parentVersion = None
+inProject = False
+inParent = False
+topLevelElement = None
+for line in lines:
+    if inProject:
+        if topLevelElement != None:
+            if inParent and parentVersion == None:
+                parentVersion = find_version(line)
+            if line.find("</" + topLevelElement + ">") >= 0:
+                topLevelElement = None
+                if inParent:
+                    inParent = False
+        else:
+            version = find_version(line)
+            if version != None:
+                print(version)
+                exit()
+
+            tagIndex = line.find("<")
+            if tagIndex >= 0:
+                endTagIndex = line.find(">")
+                topLevelElement = line[tagIndex+1:endTagIndex]
+                if line.find("</" + topLevelElement + ">") >= 0:
+                    topLevelElement = None
+                elif topLevelElement == "parent":
+                    inParent = True
+    else:
+        projectIndex = line.find("<project")
+        if projectIndex >= 0:
+            inProject = True
+
+print(parentVersion)