/usr/share/tools/reduce-xml is in discover-data 2.2013.01.11.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 | #!/usr/bin/python
#
# Cuts out all the cruft for the udeb packages.
import sys
import os
import string
import re
import traceback
import getopt
import xml.dom
import xml.dom.minidom
try:
True
except:
True = 1
False = 0
config = { "filelist": [],
"outfile": "-",
"outtype": "device",
"includebus": [],
"excludebus": [],
"classspec": [],
"classversion": "",
"modlistfile": "",
"debug": False
}
toplevel_nodes = { "device": "device_list",
"vendor": "vendor_list"
}
class UsageError(RuntimeError):
pass
def compare_versions(x, y):
x_pieces = string.split(x, ".")
y_pieces = string.split(y, ".")
index = 0
while index < len(x_pieces) and index < len(y_pieces):
if int(x_pieces[index]) != int(y_pieces[index]):
return cmp(int(x_pieces[index]), int(y_pieces[index]))
index = index + 1
return cmp(len(x_pieces), len(y_pieces))
def check_version(set_spec, version):
if string.find(set_spec, "inf") != -1:
pass
include_left = (set_spec[0] == "[")
include_right = (set_spec[-1] == "]")
(left_version, right_version) = re.split(r',\s*', set_spec[1:-1])
if left_version == "inf":
left_compare = -1
else:
left_compare = compare_versions(left_version, version)
if right_version == "inf":
right_compare = 1
else:
right_compare = compare_versions(version, right_version)
if left_compare < 0 and right_compare < 0:
return True
if left_compare == 0 and include_left:
return True
if right_compare == 0 and include_right:
return True
return False
def get_busclass(device_node, busclass_docs):
if not device_node.attributes.has_key("busclass"):
return None
device_id = device_node.attributes["busclass"].value
for doc in busclass_docs:
for node in doc.documentElement.childNodes:
if node.nodeType != xml.dom.Node.ELEMENT_NODE:
continue
id = node.attributes["id"].value
if id == device_id:
return node.attributes["name"].value
return None
def find_spec(spec, node):
try:
(spec_name, spec_rest) = string.split(spec, ":", 1)
except:
spec_name = spec
spec_rest = None
node_name = node.attributes["class"]
if node_name is None:
return False
node_name = node_name.value
if node_name == spec_name:
if spec_rest is None:
return True
elif spec_rest[0] in string.digits:
spec_version = spec_rest
try:
node_version_spec = node.attributes["version"]
except KeyError:
return True
return check_version(node_version_spec.value, spec_version)
else:
for child_node in node.childNodes:
if child_node.nodeType != xml.dom.Node.ELEMENT_NODE:
continue
if find_spec(spec_rest, child_node):
return True
return False
else:
return False
def usage(f):
f.write("need usage statement\n")
def main():
global config
global toplevel_nodes
try:
# Parse options
(options, args) = getopt.getopt(sys.argv[1:], "di:o:",
["input-file=", "output-file=",
"output-type=",
"include-bus=",
"exclude-bus=", "class-spec=",
"module-list=",
"debug"])
for option in options:
if option[0] in ("-i", "--input-file"):
config["filelist"].append(option[1])
elif option[0] in ("-o", "--output-file"):
config["outfile"] = option[1]
elif option[0] == "--output-type":
config["outtype"] = option[1]
elif option[0] == "--include-bus":
config["includebus"].extend(string.split(option[1], ","))
elif option[0] == "--exclude-bus":
config["excludebus"].extend(string.split(option[1], ","))
elif option[0] == "--class-spec":
config["classspec"].append(option[1])
elif option[0] == "--module-list":
config["modlistfile"] = option[1]
elif option[0] in ("-d", "--debug"):
config["debug"] = True
else:
raise UsageError, "invalid option: %s" % (option[0],)
# Sanity-check options
if len(config["filelist"]) == 0:
raise UsageError, "need input busclass, vendor, and device files"
if len(config["classspec"]) == 0:
raise UsageError, "need at least one class specification"
# Load module list information if present
modlist = []
if config["modlistfile"] and os.path.exists(config["modlistfile"]):
modlistfile = open(config["modlistfile"])
for line in modlistfile:
modlist.append(string.strip(line))
modlistfile.close()
# Load files
bus_info = {}
for fn in config["filelist"]:
try:
document = xml.dom.minidom.parse(fn)
bus_id = document.documentElement.attributes["bus"].value
except:
sys.stderr.write("warning: couldn't parse %s, skipping.\n"
% (fn,))
continue
if not bus_info.has_key(bus_id):
bus_info[bus_id] = { "busclass": [],
"vendor": [],
"device": [] }
data_type = document.documentElement.tagName[:-5]
try:
bus_info[bus_id][data_type].append(document)
except:
sys.stderr.write("warning: invalid file %s, continuing.\n"
% (fn,))
# Sanity-check file information
if len(bus_info.keys()) != 1:
raise RuntimeError, \
"one and only one bus type can be used at a time"
bus_data = bus_info[bus_info.keys()[0]]
for bus_type in ("busclass", "device"):
if len(bus_data[bus_type]) == 0:
raise RuntimeError, \
"required data for bus %s missing, aborting" \
% (bus_type,)
# Create output device document
outtype = config["outtype"]
out = bus_data[outtype][0].implementation.createDocument(None, toplevel_nodes[outtype], None)
out.documentElement.setAttribute("bus", bus_info.keys()[0])
# Iterate over the input device document, copying nodes we
# don't want to strip to the output document.
attr_list = []
for device_doc in bus_data["device"]:
for device_node in device_doc.documentElement.childNodes:
if device_node.nodeType != xml.dom.Node.ELEMENT_NODE:
continue
is_approved_busclass = True
do_device_node = False
module_in_list = False
new_device_node = None
busclass = get_busclass(device_node, bus_data["busclass"])
if busclass is None or \
busclass in config["excludebus"]:
is_approved_busclass = False
if len(config["includebus"]) > 0 and \
busclass not in config["includebus"]:
is_approved_busclass = False
for data_node in device_node.childNodes:
if data_node.nodeType != xml.dom.Node.ELEMENT_NODE:
continue
do_data_node = False
for spec in config["classspec"]:
if find_spec(spec, data_node):
npath = ["module", "name"]
nnode = data_node.childNodes[0]
while len(npath) > 0 and nnode is not None:
while nnode is not None and \
nnode.nodeType != \
xml.dom.Node.ELEMENT_NODE:
nnode = nnode.nextSibling
if nnode is None:
continue
if nnode.getAttribute("class") == npath[0]:
nnode = nnode.childNodes[0]
npath.pop(0)
else:
nnode = nnode.nextSibling
if nnode is not None:
module_name = string.strip(nnode.nodeValue)
if module_name in modlist:
module_in_list = True
break
elif module_name not in ("ignore", "unknown"):
do_data_node = True
break
if module_in_list or \
(do_data_node and is_approved_busclass):
do_device_node = True
if outtype == "device":
if new_device_node is None:
new_device_node = device_node.cloneNode(False)
new_data_node = data_node.cloneNode(False)
for mod_node in data_node.childNodes:
if mod_node.nodeType != xml.dom.Node.ELEMENT_NODE:
continue
if mod_node.getAttribute("class") != "module":
continue
new_mod_node = mod_node.cloneNode(True)
new_data_node.appendChild(new_mod_node)
break
new_device_node.appendChild(new_data_node)
if do_device_node:
if outtype == "device":
out.documentElement.appendChild(new_device_node)
else:
attr_list.append(device_node.getAttribute(outtype))
# If we're reducing something besides the device list, create
# that reduced document here.
if outtype != "device":
for doc in bus_data[outtype]:
for node in doc.documentElement.childNodes:
if node.nodeType != xml.dom.Node.ELEMENT_NODE:
continue
if node.getAttribute("id") in attr_list:
new_node = node.cloneNode(True)
out.documentElement.appendChild(new_node)
# Write the output document
if config["outfile"] == "-":
out_file = sys.stdout
else:
out_file = open(config["outfile"], "w")
out.writexml(out_file, encoding="UTF-8")
except UsageError, e:
sys.stderr.write(sys.argv[0] + ": " + str(e) + "\n")
if config["debug"]:
traceback.print_exc(None, sys.stderr)
usage(sys.stderr)
sys.exit(1)
except Exception, e:
sys.stderr.write(sys.argv[0] + ": " + str(e) + "\n")
if config["debug"]:
traceback.print_exc(None, sys.stderr)
sys.exit(1)
if __name__ == "__main__":
main()
|