#! python
###
#  A convenience script to generate a deployment archive name of the form
#  FreeCAD_{Major Version Number}.{Minor Version Number}-{Git Revision Count}.{Git Short SHA}-{OS}-{Arch}
#
import sys,string,getopt,platform

def deserializeVersionHeader(path):
    version = {}
    try:
        dat = open(path, 'r').readlines()
    except IOError:
        print('Unable to open ', path)
        raise

    for l in dat:
        tokens = l.split()
        if len(tokens) > 1 and tokens[0].lower() == '#define':
            version[tokens[1]] = tokens[2].replace('"',"")

    return version

def main():
    OSAbbrev = {'Windows' : 'WIN', 'Darwin' : 'OSX'}
    SHA = None

    if(len(sys.argv) < 2):
        sys.stderr.write("Usage:  archiveNameFromVersion <path to Version.h> [--git-SHA=]\n")

    try:
        opts, args = getopt.getopt(sys.argv[2:], "g:", ["git-SHA="])
    except getopt.GetoptError:
        pass

    for o, a in opts:
        if o in ("-g", "--git-SHA"):
            SHA = a

    version = deserializeVersionHeader(sys.argv[1])
    if SHA:
        version['FCRepositoryHash'] = SHA

    print('FreeCAD_{Major}.{Minor}-{RevCount}.{GitShortSHA}-{OS}-{Arch}'.format(
          Major=version['FCVersionMajor'],
          Minor=version['FCVersionMinor'],
          RevCount=version['FCRevision'],
          GitShortSHA=version['FCRepositoryHash'][0:7],
          OS=OSAbbrev.get(platform.system(), 'LIN'),
          Arch=platform.machine()))

if __name__ == "__main__":
    main()

