prebuild.py

#!/usr/bin/env python

"""
Write version and date information to a .c file, so compiles can be updated

authors: ronf, fgb, apullin
"""

import time, os, sys, re

VER_STR_LENGTH_MAX = 80

if len(sys.argv) < 2:
    print("Not enough arguments given. Need path to settings.h file.")
    sys.exit()

settingsFile    = sys.argv[1] # path to settings.h

infile = open(settingsFile, 'r') #read only
#infile = open('settings.h')

for line in infile:
    if '#define IDENT_STR' in line:
        identStrLine = line
        infile.close()
        break

identStr = re.findall(r'"(.*?)"', line)[0]
timestamp = time.strftime("%a %b %d %H:%M:%S %Y")
verStr    = identStr + " " + timestamp
verStrClip = verStr[0:VER_STR_LENGTH_MAX]

# Write string to header file
filename   = 'source/version-string.h'
fileout = open(filename,'w')
fileout.write(
'/* automatically generated by version.py - do not edit! Do not enter into SCM! */\n\n'      + \
'#define VERSION_STRING "'+ verStrClip + '"\n\n'      )
fileout.close()

print('updated ' + os.getcwd() + os.sep + filename)