Automate the Export of Primavera P6 Projects using Python

#written by David Young on 2019/12/6
import cx_Oracle
import datetime
import fileinput
import os
import subprocess
import sys
from codecs import open

arguments = len(sys.argv)-1
if arguments < 6:
	print ("The script is called with %i arguments - 6 arguments are required. (DBUsername, DBpassword, DBalias, APPusername, APPpassword, OneXer)" % (arguments))
	sys.exit()
	
DBusername= sys.argv[1] 
DBpassword=sys.argv[2] 
DBalias=sys.argv[3] 
APPusername=sys.argv[4] 
APPpassword=sys.argv[5]
OneXer=sys.argv[6]

if OneXer != "0":
	OneXer = True
else:
	OneXer = False

"""
Url: https://gist.github.com/wassname/1393c4a57cfcbf03641dbc31886123b8
"""
import unicodedata
import string

valid_filename_chars = "-_.() %s%s" % (string.ascii_letters, string.digits)
char_limit = 255

def clean_filename(filename, whitelist=valid_filename_chars, replace=' '):
    # replace spaces
    for r in replace:
        filename = filename.replace(r,'_')
    
    # keep only valid ascii chars
    cleaned_filename = unicodedata.normalize('NFKD', filename).encode('ASCII', 'ignore').decode()
    
    # keep only whitelisted chars
    cleaned_filename = ''.join(c for c in cleaned_filename if c in whitelist)
    if len(cleaned_filename)>char_limit:
        print("Warning, filename truncated because it was over {}. Filenames may no longer be unique".format(char_limit))
    return cleaned_filename[:char_limit]  
"""
End of function
"""

def secure_log():
	if os.path.exists('myLog.txt'):
		with fileinput.FileInput('myLog.txt', inplace=True) as file:
			for line in file:			
				print(line.replace(APPpassword, len(APPpassword)*'X'), end='')

ospath = os.path.dirname(os.path.abspath(__file__))
pmpath = subprocess.check_output("WHERE PM.EXE", shell=True) 


def begin_process():
	secure_log()
	numtodo = 0
	proj_name_str_first = ''
	if os.path.exists("actions.xml"):
		os.rename("actions.xml", "actions" + datetime.datetime.now().strftime("%Y%m%d%H%M%S") + ".xml")	

	con = cx_Oracle.connect("{}/{}@{}".format(DBusername, DBpassword, DBalias))
	print (con.version)

	cursor = con.cursor()
	if OneXer:
		cursor.execute("""
			SELECT DISTINCT PROJ_SHORT_NAME FROM PROJECT 
			WHERE ORIG_PROJ_ID IS NULL			
			AND PROJ_SHORT_NAME NOT LIKE '%^%'
			AND PROJ_SHORT_NAME NOT LIKE '%&%'
			ORDER BY PROJ_SHORT_NAME
			""")
	else:
		cursor.execute("""
			SELECT DISTINCT PROJ_SHORT_NAME FROM PROJECT 
			WHERE ORIG_PROJ_ID IS NULL
			AND RISK_LEVEL IS NULL
			AND PROJ_SHORT_NAME NOT LIKE '%^%'
			AND PROJ_SHORT_NAME NOT LIKE '%&%'
			ORDER BY PROJ_SHORT_NAME
			""")
			
	f = open(ospath + '\\actions.xml','a')
	xml_file_begin = '<actions>\n'
	f.write(xml_file_begin)
	
	if OneXer:
		xml_file = '\t<action>\n\t\t<type>export</type>\n\t\t<Projects>'
		f.write(xml_file)
			
	for proj_name in cursor:	
		proj_name_actual = ''.join(proj_name)
		proj_name_str = clean_filename(proj_name_actual)
		print("Project:", proj_name_actual)
		if OneXer:
			xml_file = '\n\t\t\t<ProjectID>' + proj_name_actual + '</ProjectID>'
			f.write(xml_file)
		else:
			if not os.path.exists(ospath + '\\' + proj_name_str + '.xer'):
				if proj_name_str_first == '':
					proj_name_str_first = proj_name_str
				numtodo += 1
				xml_file = '\t<action>\n\t\t<type>export</type>\n\t\t<Projects>\n\t\t\t<ProjectID>' + proj_name_actual + '</ProjectID>\n\t\t</Projects>\n\t\t<outputFile>' + ospath + '\\'+ proj_name_str +'.xer</outputFile>\n\t</action>\n'	
				f.write(xml_file)	
			else:
				print("Skipped: Project "+ proj_name_actual + " already exported or errored.")
			
	if OneXer:
		xml_file = '\n\t\t</Projects>\n\t\t<outputFile>' + ospath + '\\OneFile.xer</outputFile>\n\t</action>\n'
		f.write(xml_file)	
	
	xml_file_end = '</actions>\n'
	f.write(xml_file_end)
	f.close()
	if not OneXer:
		print("Number of projects left to process:", numtodo)		
	os.system('PM.EXE /username=' + APPusername + ' /password=' + APPpassword + ' /actionScript=\"' + ospath + '\\actions.xml\" /logfile="' + ospath + '\\myLog.txt\"')
	con.close()
	secure_log()
	
	if numtodo > 0:
		if not os.path.exists(ospath + '\\' + proj_name_str_first + '.xer'):
			print("Errored on: ", proj_name_str_first)
			g = open(ospath + '\\' + proj_name_str_first + '.xer','w')
			g.write('Error!!')
			g.close()
			h = open(ospath + '\\ERROR - ' + proj_name_str_first + '.txt','w')
			h.write('Error!!')
			h.close()
		begin_process()		
		
begin_process()