import os, stat, time
import re

AGE_MAX = 8 * 7 * 86400.0      # 8 weeks

RSYNC_COMMAND = ("rsync --bwlimit=450 --perms --chmod=Da+rx,Fa+r"
                 " --relative --files-from=old-builds ."
                 " buildslave@tannit.openend.se:public_html/nightly/")


r = re.compile(r"pypy-c-.+\d\d\d\d.+[.]tar[.]bz2$")
now = os.lstat('.').st_mtime


def walk(f, dir):
    for p1 in os.listdir(dir):
        if dir == '.':
            path = p1
        else:
            path = os.path.join(dir, p1)
        try:
            st = os.lstat(path)
        except OSError:
            continue
        if stat.S_ISDIR(st.st_mode):
            walk(f, path)
        elif stat.S_ISREG(st.st_mode):
            if r.match(p1):
                age = now - st.st_mtime
                if age > AGE_MAX:
                    print >> f, path


if __name__ == '__main__':
    f = open('old-builds', 'w')
    walk(f, '.')
    empty = f.tell() == 0
    f.close()
    if not empty:
        err = os.system(RSYNC_COMMAND)
        if err:
            raise OSError("Error: %s" % (err,))
        for filename in open('old-builds'):
            os.unlink(filename)
    os.unlink('old-builds')