How to use recvFile method in fMBT

Best Python code snippet using fMBT_python

cmptree.py

Source:cmptree.py

1"""Compare local and remote dictionaries and transfer differing files -- like rdist."""23import sys4from repr import repr5import FSProxy6import time7import os89def main():10    pwd = os.getcwd()11    s = raw_input("chdir [%s] " % pwd)12    if s:13        os.chdir(s)14        pwd = os.getcwd()15    host = ask("host", 'voorn.cwi.nl')16    port = 412717    verbose = 118    mode = ''19    print """\20Mode should be a string of characters, indicating what to do with differences.21r - read different files to local file system22w - write different files to remote file system23c - create new files, either remote or local24d - delete disappearing files, either remote or local25"""26    s = raw_input("mode [%s] " % mode)27    if s: mode = s28    address = (host, port)29    t1 = time.time()30    local = FSProxy.FSProxyLocal()31    remote = FSProxy.FSProxyClient(address, verbose)32    compare(local, remote, mode)33    remote._close()34    local._close()35    t2 = time.time()36    dt = t2-t137    mins, secs = divmod(dt, 60)38    print mins, "minutes and", round(secs), "seconds"39    raw_input("[Return to exit] ")4041def ask(prompt, default):42    s = raw_input("%s [%s] " % (prompt, default))43    return s or default4445def askint(prompt, default):46    s = raw_input("%s [%s] " % (prompt, str(default)))47    if s: return string.atoi(s)48    return default4950def compare(local, remote, mode):51    print52    print "PWD =", repr(os.getcwd())53    sums_id = remote._send('sumlist')54    subdirs_id = remote._send('listsubdirs')55    remote._flush()56    print "calculating local sums ..."57    lsumdict = {}58    for name, info in local.sumlist():59        lsumdict[name] = info60    print "getting remote sums ..."61    sums = remote._recv(sums_id)62    print "got", len(sums)63    rsumdict = {}64    for name, rsum in sums:65        rsumdict[name] = rsum66        if not lsumdict.has_key(name):67            print repr(name), "only remote"68            if 'r' in mode and 'c' in mode:69                recvfile(local, remote, name)70        else:71            lsum = lsumdict[name]72            if lsum != rsum:73                print repr(name),74                rmtime = remote.mtime(name)75                lmtime = local.mtime(name)76                if rmtime > lmtime:77                    print "remote newer",78                    if 'r' in mode:79                        recvfile(local, remote, name)80                elif lmtime > rmtime:81                    print "local newer",82                    if 'w' in mode:83                        sendfile(local, remote, name)84                else:85                    print "same mtime but different sum?!?!",86                print87    for name in lsumdict.keys():88        if not rsumdict.keys():89            print repr(name), "only locally",90            fl()91            if 'w' in mode and 'c' in mode:92                sendfile(local, remote, name)93            elif 'r' in mode and 'd' in mode:94                os.unlink(name)95                print "removed."96            print97    print "gettin subdirs ..."98    subdirs = remote._recv(subdirs_id)99    common = []100    for name in subdirs:101        if local.isdir(name):102            print "Common subdirectory", repr(name)103            common.append(name)104        else:105            print "Remote subdirectory", repr(name), "not found locally"106            if 'r' in mode and 'c' in mode:107                pr = "Create local subdirectory %s? [y] " % \108                     repr(name)109                if 'y' in mode:110                    ok = 'y'111                else:112                    ok = ask(pr, "y")113                if ok[:1] in ('y', 'Y'):114                    local.mkdir(name)115                    print "Subdirectory %s made" % \116                            repr(name)117                    common.append(name)118    lsubdirs = local.listsubdirs()119    for name in lsubdirs:120        if name not in subdirs:121            print "Local subdirectory", repr(name), "not found remotely"122    for name in common:123        print "Entering subdirectory", repr(name)124        local.cd(name)125        remote.cd(name)126        compare(local, remote, mode)127        remote.back()128        local.back()129130def sendfile(local, remote, name):131    try:132        remote.create(name)133    except (IOError, os.error), msg:134        print "cannot create:", msg135        return136137    print "sending ...",138    fl()139140    data = open(name).read()141142    t1 = time.time()143144    remote._send_noreply('write', name, data)145    remote._flush()146147    t2 = time.time()148149    dt = t2-t1150    print len(data), "bytes in", round(dt), "seconds",151    if dt:152        print "i.e.", round(len(data)/dt), "bytes/sec",153    print154155def recvfile(local, remote, name):156    ok = 0157    try:158        rv = recvfile_real(local, remote, name)159        ok = 1160        return rv161    finally:162        if not ok:163            print "*** recvfile of %r failed, deleting" % (name,)164            local.delete(name)165166def recvfile_real(local, remote, name):167    try:168        local.create(name)169    except (IOError, os.error), msg:170        print "cannot create:", msg171        return172173    print "receiving ...",174    fl()175176    f = open(name, 'w')177    t1 = time.time()178179    length = 4*1024180    offset = 0181    id = remote._send('read', name, offset, length)182    remote._flush()183    while 1:184        newoffset = offset + length185        newid = remote._send('read', name, newoffset, length)186        data = remote._recv(id)187        id = newid188        if not data: break189        f.seek(offset)190        f.write(data)191        offset = newoffset192    size = f.tell()193194    t2 = time.time()195    f.close()196197    dt = t2-t1198    print size, "bytes in", round(dt), "seconds",199    if dt:200        print "i.e.", size//dt, "bytes/sec",201    print202    remote._recv(id) # ignored203204def fl():205    sys.stdout.flush()206207if __name__ == '__main__':
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