Several flavors for an Android application (Eclipse ADT) -

there android application developed under , built eclipse/adt. have make exist in 2 flavours: market version (with google libraries purchase support) , version customer n (without google play stuff custom features).

i cannot refactor library because break version control history. important not break version control , make sure bugs fixed in common part fixed in both flavors. important keep directory structure (src/ res/ libs/). cannot introduce flag because requirement leave no trace of custom features in market binary.

if wanted remove custom features manually, (1) remove source files (both java , resources) and (2) comment out lines in other source files (again, both java , xml resources).

how make application exist in 2 versions (flavours) different feature sets?

another version of same script. better suited large number of configurations. supports ancestor configurations. cannot set configurations linux , master separately: must define linux-master. happens because disables or enables each configuration knows, no configuration left untouched. otoh, can have 2 copies of script, e.g. 1 selecting os , selecting user access level.

setconfig.1.py:

#!/usr/bin/python # coding: utf-8  # configuration list format is: 1 configuration on each line, first configuration name names of parent configurations, e.g.: # guest # basic # advanced basic # superuser advanced # linux # windows # customer1 superuser linux # customer2 basic windows # customer3 guest windows  configurations = """  guest  basic  advanced basic  superuser advanced  linux  windows  customer1 superuser linux  customer2 basic windows  customer3 guest windows """  import argparse import os import re  #set false debugging = true verbose = true  configlist = filter(none,map(lambda l:l.split(), configurations.split('\n'))) configparents = { l[0] : l l in configlist } ancestorsets = {} def findancestors(name,visited,tovisit):     visited.add(name)     in tovisit:         if not in visited:             visited.update(findancestors(a,visited,configparents[a]))     return visited c,p in configparents.iteritems():     ancestorsets[c] = findancestors(c,set(),p)  # in file 'fname', # find text matching "before oldtext after" (all occurrences) , # replace 'oldtext' 'newtext' (all occurrences). # if 'mandatory' true, raise exception if no replacements made. def filereplace(fname,before,newtext,after,oldtextpattern=r"[\w.]+",mandatory=true):     open(fname, 'r+') f:         read_data = f.read()         pattern = r"("+re.escape(before)+r")"+oldtextpattern+"("+re.escape(after)+r")"         replacement = r"\g<1>"+newtext+r"\g<2>"         new_data,replacements_made = re.subn(pattern,replacement,read_data,flags=re.multiline)         if replacements_made , really:             if new_data!=read_data:                 f.seek(0)                 f.truncate()                 f.write(new_data)             if verbose:                 print "patching ",fname," (",replacements_made," occurrence" + ("s" if 1!=replacements_made else ""),")",newtext,("-- no changes" if new_data==read_data else "-- ***changed***")         elif replacements_made:             print "\n\n\n\n"             print fname,":"             print new_data         elif mandatory:             raise exception("cannot patch file: "+fname+" ["+newtext+"] instead of '"+before+"{"+oldtextpattern+"}"+after+"'")  def enableconfiginfile(flavour,fname, enable=true):     if enable:         symbol=r"*"         oldsymbol=re.escape("/")     else:         symbol=r"/"         oldsymbol=re.escape("*")     filereplace(fname, "/*"+flavour+"{",symbol,"/",oldtextpattern=oldsymbol, mandatory=false)  def enableconfiginxmlfile(flavour,fname, enable=true):     if enable:         startsymbol=r"<!--"         endsymbol=r"-->"         oldstartsymbol=re.escape("x!==")         oldendsymbol=re.escape("==x")     else:         startsymbol=r"x!=="         endsymbol=r"==x"         oldstartsymbol=re.escape("<!--")         oldendsymbol=re.escape("-->")     filereplace(fname, "<!--"+flavour+"{", endsymbol, "", oldtextpattern=oldendsymbol, mandatory=false)     filereplace(fname, "", startsymbol, "}"+flavour+"-->", oldtextpattern=oldstartsymbol, mandatory=false)  def enableconfig(flavour, enable=true):     root, dirs, files in os.walk(".", topdown=true):         # ignore version control directories         # why .hg- , .git- ? need hide .hg or .git programs `meld`.         # (`meld` ignores .hg if finds .git)         if '.svn' in dirs:             dirs.remove('.svn')         if '.svn-' in dirs:             dirs.remove('.svn-')         if '.hg' in dirs:             dirs.remove('.hg')         if '.hg-' in dirs:             dirs.remove('.hg-')         if '.git' in dirs:             dirs.remove('.git')         if '.git-' in dirs:             dirs.remove('.git-')          name in files:             if name.endswith('.java'):                 enableconfiginfile(flavour, os.path.join(root, name), enable)             elif name.endswith('.xml'):                 enableconfiginxmlfile(flavour, os.path.join(root, name), enable)  if __name__ == "__main__":     parser = argparse.argumentparser()     c in configlist:         thisconf = c[0]         parser.add_argument('--'+thisconf, dest='conf', action='store_const', const=thisconf, help='configure as: '+thisconf)      args = parser.parse_args()     if args.conf none:         parser.print_help()     else:         print "setting configuration: "+args.conf      toenable = ancestorsets[args.conf]     c in ancestorsets:         print ("enabling " if c in toenable else "disabling ")+c         enableconfig(c, enable=c in toenable)