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import sys
import getopt
import textwrap
from lxml.etree import Element, SubElement, ElementTree
space2 = " " * 2
space4 = " " * 4
space6 = " " * 6
space8 = " " * 8
text_wrapper = textwrap.TextWrapper()
conf_wrapper = textwrap.TextWrapper(initial_indent = "# ", subsequent_indent = "# ")
item_wrapper = textwrap.TextWrapper(initial_indent = space2, subsequent_indent = space2)
xml6_wrapper = textwrap.TextWrapper(initial_indent = space6, subsequent_indent = space6)
xml8_wrapper = textwrap.TextWrapper(initial_indent = space8, subsequent_indent = space8)
class Option(object):
def __init__(self, name, value, doc):
self.name = name
self.value = value
self.doc = doc
@property
def width(self):
return len(self.name)
def to_xml(self):
x = Element("option", name = self.name, value = self.value)
for d in self.doc:
SubElement(x, "doc").text = "\n" + xml8_wrapper.fill(d) + "\n" + space6
return x
def to_wiki(self, f):
f.write("\n%s::" % self.name)
for d in self.doc:
f.write("\n%s\n" % item_wrapper.fill(d))
def to_conf(self, f, width):
for d in self.doc:
f.write("\n%s\n" % conf_wrapper.fill(d))
f.write("\n%-*s = %s\n" % (width, self.name, self.value))
class Section(object):
def __init__(self, name):
self.name = name
self.doc = []
self.options = []
@property
def width(self):
return max(o.width for o in self.options)
@classmethod
def from_xml(cls, elt):
self = cls(name = elt.get("name"))
for x in elt.iterchildren("doc"):
self.doc.append(" ".join(x.text.split()))
for x in elt.iterchildren("option"):
self.options.append(Option(name = x.get("name"), value = x.get("value"),
doc = [" ".join(d.text.split())
for d in x.iterchildren("doc")]))
return self
def to_xml(self):
x = Element("section", name = self.name)
for d in self.doc:
SubElement(x, "doc").text = "\n" + xml6_wrapper.fill(d) + "\n" + space4
x.extend(o.to_xml() for o in self.options)
return x
def to_wiki(self, f):
f.write('''\
{{{
#!comment
THIS PAGE WAS GENERATED AUTOMATICALLY, DO NOT EDIT.
Generated from ''' + ident + '''
by $Id$
}}}
= ![''' + self.name + '''] section =
''')
for d in self.doc:
f.write("\n%s\n" % text_wrapper.fill(d))
for o in self.options:
o.to_wiki(f)
def to_conf(self, f, width):
f.write('''
################################################################################
[''' + self.name + ''']
''')
for d in self.doc:
f.write("\n%s\n" % conf_wrapper.fill(d))
for o in self.options:
o.to_conf(f, width)
sections = []
section_map = None
option_map = None
ident = None
opts, argv = getopt.getopt(sys.argv[1:], "",
["read-xml=", "write-xml=",
"write-wiki=", "write-conf=",
"set=", "autoconf"])
for o, a in opts:
if o == "--read-xml":
option_map = None
root = ElementTree(file = a).getroot()
ident = root.get("ident")
sections.extend(Section.from_xml(x) for x in root)
option_map = {}
section_map = {}
for section in sections:
if section.name in section_map:
sys.exit("Duplicate section %s" % section.name)
section_map[section.name] = section
for option in section.options:
name = (section.name, option.name)
if name in option_map:
sys.exit("Duplicate option %s::%s" % name)
option_map[name] = option
elif o == "--set":
try:
name, value = a.split("=", 1)
section, option = name.split("::")
except ValueError:
sys.exit("Couldn't parse --set specification \"%s\"" % a)
name = (section, option)
if name not in option_map:
sys.exit("Couldn't find option %s::%s" % name)
option_map[name].value = value
elif o == "--autoconf":
try:
import rpki.autoconf
for option in section_map["autoconf"].options:
try:
option.value = getattr(rpki.autoconf, option.name)
except AttributeError:
pass
except ImportError:
sys.exit("rpki.autoconf module is not available")
except KeyError:
sys.exit("Couldn't find autoconf section")
elif o == "--write-xml":
x = Element("configuration", ident = ident)
x.extend(s.to_xml() for s in sections)
ElementTree(x).write(a, pretty_print = True, encoding = "us-ascii")
elif o == "--write-wiki":
with open(a, "w") as f:
for i, section in enumerate(sections):
if i:
f.write("\f\n")
section.to_wiki(f)
elif o == "--write-conf":
with open(a, "w") as f:
f.write('''\
# Automatically generated. Edit as needed, but be careful of overwriting.
#
# Generated from ''' + ident + '''
# by $Id$
''')
width = max(s.width for s in sections)
for section in sections:
section.to_conf(f, width)
if argv:
sys.exit("Unexpected arguments %s" % argv)
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