1 files changed, 85 insertions, 0 deletions
diff --git a/upload/osm2change.py b/upload/osm2change.py
new file mode 100755
index 0000000..8a836d2
--- /dev/null
+++ b/upload/osm2change.py
@@ -0,0 +1,85 @@
+#! /usr/bin/env python3
+
+# Copyright (C) 2009 Jacek Konieczny <jajcus@jajcus.net>
+# Copyright (C) 2009 Andrzej Zaborowski <balrogg@gmail.com>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+
+"""
+Convert .osm files to osmChange 0.6
+"""
+
+import os
+import sys
+import traceback
+
+import http
+
+import xml.etree.cElementTree as ElementTree
+
+def osmsort(tree, order):
+    list = tree[0:len(tree)]
+    list.sort(lambda x, y: order.index(x.tag) - order.index(y.tag))
+    tree[0:len(tree)] = list
+
+try:
+    if len(sys.argv) != 2:
+        sys.stderr.write("Synopsis:\n")
+        sys.stderr.write("    %s <file-name.osm>\n" % (sys.argv[0],))
+        sys.exit(1)
+
+    filename = sys.argv[1]
+    if not os.path.exists(filename):
+        sys.stderr.write("File %r doesn't exist!\n" % (filename,))
+        sys.exit(1)
+    if filename.endswith(".osm"):
+        filename_base = filename[:-4]
+    else:
+        filename_base = filename
+
+    tree = ElementTree.parse(filename)
+    root = tree.getroot()
+    if root.tag != "osm" or root.attrib.get("version") != "0.6":
+        sys.stderr.write("File %s is not a v0.6 osm file!\n" % (filename,))
+        sys.exit(1)
+
+    output_attr = {"version": "0.6", "generator": root.attrib.get("generator")}
+    output_root = ElementTree.Element("osmChange", output_attr)
+    output_tree = ElementTree.ElementTree(output_root)
+
+    operation = {}
+    for opname in [ "create", "modify", "delete" ]:
+        operation[opname] = ElementTree.SubElement(output_root,
+                opname, output_attr)
+
+    for element in root:
+        if "id" in element.attrib and int(element.attrib["id"]) < 0:
+            opname = "create"
+        elif "action" in element.attrib:
+            opname = element.attrib.pop("action")
+        else:
+            continue
+        operation[opname].append(element)
+
+    # Does this account for all cases?  Also, is it needed?
+    # (cases like relations containing relations... is that allowed?)
+    #osmsort(operation["create"], [ "node", "way", "relation" ])
+    #osmsort(operation["delete"], [ "relation", "way", "node" ])
+
+    output_tree.write(filename_base + ".osc", "utf-8")
+except Exception as err:
+    sys.stderr.write(repr(err) + "\n")
+    traceback.print_exc(file = sys.stderr)
+    sys.exit(1)