#! /usr/bin/env python
"""
Syntax:  svn-share.py  working-copy-1  ...  working-copy-n

Also removes .pyc files, just because it can be nicely done
at the same time.
"""
import os, sys, sha, stat

seen = {}

def parse(path):
    textpath = path + '/.svn/text-base'
    if os.path.isdir(textpath):
        for name in os.listdir(textpath):
            fullname = os.path.join(textpath, name)
            f = open(fullname, 'rb')
            data = f.read()
            f.close()
            if data:
                digest = sha.sha(data).digest()
                del data
                if digest not in seen:
                    seen[digest] = fullname
                elif not os.path.samefile(seen[digest], fullname):
                    print 'E', seen[digest]
                    print 'W', fullname
                    try:
                        os.link(seen[digest], fullname + '~')
                    except OSError, e:
                        print e
                    else:
                        os.rename(fullname + '~', fullname)
    for name in os.listdir(path):
        if name != '.svn':
            fullname = os.path.join(path, name)
            st = os.lstat(fullname)
            if stat.S_ISDIR(st.st_mode):
                parse(fullname)
            elif name.endswith('.pyc') and stat.S_ISREG(st.st_mode):
                try:
                    os.unlink(fullname)
                except OSError:
                    pass

if len(sys.argv) <= 1:
    print >> sys.stderr, __doc__
    sys.exit(2)

for rootpath in sys.argv[1:]:
    parse(rootpath)