[svn r37278] move files from branch to trunk (and thus complete

the merge of the config branch into the trunk)

--HG--
branch : trunk

py/execnet/rsync_remote.py

@@ -0,0 +1,86 @@
+
+def f():
+    import os, stat, shutil, md5
+    destdir, options = channel.receive() 
+    modifiedfiles = []
+
+    def remove(path):
+        assert path.startswith(destdir)
+        try:
+            os.unlink(path)
+        except OSError:
+            # assume it's a dir
+            shutil.rmtree(path)
+
+    def receive_directory_structure(path, relcomponents):
+        try:
+            st = os.lstat(path)
+        except OSError:
+            st = None
+        msg = channel.receive()
+        if isinstance(msg, list):
+            if st and not stat.S_ISDIR(st.st_mode):
+                os.unlink(path)
+                st = None
+            if not st:
+                os.makedirs(path)
+            entrynames = {}
+            for entryname in msg:
+                receive_directory_structure(os.path.join(path, entryname),
+                    relcomponents + [entryname])
+                entrynames[entryname] = True
+            if options.get('delete'): 
+                for othername in os.listdir(path):
+                    if othername not in entrynames:
+                        otherpath = os.path.join(path, othername)
+                        remove(otherpath)
+        elif msg is not None:
+            checksum = None
+            if st:
+                if stat.S_ISREG(st.st_mode):
+                    msg_mtime, msg_size = msg
+                    if msg_size != st.st_size:
+                        pass
+                    elif msg_mtime != st.st_mtime:
+                        f = open(path, 'rb')
+                        checksum = md5.md5(f.read()).digest()
+                        f.close()
+                    else:
+                        return    # already fine
+                else:
+                    remove(path)
+            channel.send(("send", (relcomponents, checksum)))
+            modifiedfiles.append((path, msg))
+    receive_directory_structure(destdir, [])
+
+    STRICT_CHECK = False    # seems most useful this way for py.test
+    channel.send(("list_done", None))
+
+    for path, (time, size) in modifiedfiles:
+        data = channel.receive()
+        channel.send(("ack", path[len(destdir) + 1:]))
+        if data is not None:
+            if STRICT_CHECK and len(data) != size:
+                raise IOError('file modified during rsync: %r' % (path,))
+            f = open(path, 'wb')
+            f.write(data)
+            f.close()
+        os.utime(path, (time, time))
+        del data
+    channel.send(("links", None))
+
+    msg = channel.receive()
+    while msg is not 42:
+        # we get symlink
+        _type, relpath, linkpoint = msg
+        assert _type == "link"
+        path = os.path.join(destdir, relpath)
+        try:
+            remove(path)
+        except OSError:
+            pass
+
+        os.symlink(os.path.join(destdir, linkpoint), path)
+        msg = channel.receive()
+    channel.send(("done", None))
+