2010-04-19 14:04:57 +02:00
#!/usr/bin/env python
# vim: set ts=4 sw=4 et: coding=UTF-8
#
# Copyright (c) 2010, Novell, Inc.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# 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 Lesser 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.
#
# Authors: Vincent Untz <vuntz@gnome.org>
# TODO: add alias support for choices
# choices: 'this-is-an-alias' = 'real', 'other', 'real'
# TODO: we don't support migrating a pair from a gconf schema. It has yet to be
# seen in real-world usage, though.
import os
import sys
import optparse
try:
from lxml import etree as ET
except ImportError:
try:
from xml.etree import cElementTree as ET
except ImportError:
import cElementTree as ET
GSETTINGS_SIMPLE_SCHEMA_INDENT = ' '
TYPES_FOR_CHOICES = [ 's' ]
TYPES_FOR_RANGE = [ 'y', 'n', 'q', 'i', 'u', 'x', 't', 'h', 'd' ]
######################################
def is_schema_id_valid(id):
# FIXME: there's currently no restriction on what an id should contain,
# but there might be some later on
return True
def is_key_name_valid(name):
# FIXME: we could check that name is valid ([-a-z0-9], no leading/trailing
# -, no leading digit, 32 char max). Note that we don't want to validate
# the key when converting from gconf, though, since gconf keys use
# underscores.
return True
def are_choices_valid(choices):
# FIXME: we could check that all values have the same type with GVariant
return True
def is_range_valid(minmax):
# FIXME: we'll be able to easily check min < max once we can convert the
# values with GVariant
return True
######################################
class GSettingsSchemaConvertException(Exception):
pass
######################################
class GSettingsSchemaRoot:
def __init__(self):
self.gettext_domain = None
self.schemas = []
def get_simple_string(self):
need_empty_line = False
result = ''
for schema in self.schemas:
if need_empty_line:
result += '\n'
result += schema.get_simple_string()
if result:
need_empty_line = True
# Only put the gettext domain if we have some content
if result and self.gettext_domain:
result = 'gettext-domain: %s\n\n%s' % (self.gettext_domain, result)
return result
def get_xml_node(self):
schemalist_node = ET.Element('schemalist')
if self.gettext_domain:
schemalist_node.set('gettext-domain', self.gettext_domain)
for schema in self.schemas:
for schema_node in schema.get_xml_nodes():
schemalist_node.append(schema_node)
return schemalist_node
######################################
class GSettingsSchema:
def __init__(self):
self.id = None
self.path = None
# only set when this schema is a child
self.name = None
self.gettext_domain = None
self.children = []
self.keys = []
def get_simple_string(self, current_indent = '', parent_path = ''):
if not self.children and not self.keys:
return ''
content = self._get_simple_string_for_content(current_indent)
if not content:
return ''
if self.name:
id = 'child %s' % self.name
force_empty_line = False
else:
id = 'schema %s' % self.id
force_empty_line = True
result = ''
result += '%s%s:\n' % (current_indent, id)
result += self._get_simple_string_for_attributes(current_indent, parent_path, force_empty_line)
result += content
return result
def _get_simple_string_for_attributes(self, current_indent, parent_path, force_empty_line):
need_empty_line = force_empty_line
result = ''
if self.gettext_domain:
result += '%sgettext-domain: %s\n' % (current_indent + GSETTINGS_SIMPLE_SCHEMA_INDENT, self.gettext_domain)
need_empty_line = True
if self.path and (not parent_path or (self.path != '%s%s/' % (parent_path, self.name))):
result += '%spath: %s\n' % (current_indent + GSETTINGS_SIMPLE_SCHEMA_INDENT, self.path)
need_empty_line = True
if need_empty_line:
result += '\n'
return result
def _get_simple_string_for_content(self, current_indent):
need_empty_line = False
result = ''
for key in self.keys:
result += key.get_simple_string(current_indent + GSETTINGS_SIMPLE_SCHEMA_INDENT)
need_empty_line = True
for child in self.children:
if need_empty_line:
result += '\n'
result += child.get_simple_string(current_indent + GSETTINGS_SIMPLE_SCHEMA_INDENT, self.path)
if result:
need_empty_line = True
return result
def get_xml_nodes(self):
if not self.children and not self.keys:
return []
(node, children_nodes) = self._get_xml_nodes_for_content()
if node is None:
return []
node.set('id', self.id)
if self.path:
node.set('path', self.path)
nodes = [ node ]
nodes.extend(children_nodes)
return nodes
def _get_xml_nodes_for_content(self):
if not self.keys and not self.children:
return (None, None)
children_nodes = []
schema_node = ET.Element('schema')
if self.gettext_domain:
schema_node.set('gettext-domain', self.gettext_domain)
for key in self.keys:
key_node = key.get_xml_node()
schema_node.append(key_node)
for child in self.children:
child_nodes = child.get_xml_nodes()
children_nodes.extend(child_nodes)
child_node = ET.SubElement(schema_node, 'child')
if not child.name:
raise GSettingsSchemaConvertException('Internal error: child being processed with no schema id.')
child_node.set('name', child.name)
child_node.set('schema', '%s' % child.id)
return (schema_node, children_nodes)
######################################
class GSettingsSchemaKey:
def __init__(self):
self.name = None
self.type = None
self.default = None
self.typed_default = None
self.l10n = None
self.l10n_context = None
self.summary = None
self.description = None
self.choices = None
self.range = None
def fill(self, name, type, default, typed_default, l10n, l10n_context, summary, description, choices, range):
self.name = name
self.type = type
self.default = default
self.typed_default = typed_default
self.l10n = l10n
self.l10n_context = l10n_context
self.summary = summary
self.description = description
self.choices = choices
self.range = range
def _has_range_choices(self):
return self.choices is not None and self.type in TYPES_FOR_CHOICES
def _has_range_minmax(self):
return self.range is not None and len(self.range) == 2 and self.type in TYPES_FOR_RANGE
def get_simple_string(self, current_indent):
# FIXME: kill this when we'll have python bindings for GVariant. Right
# now, every simple format schema we'll generate has to have an
# explicit type since we can't guess the type later on when converting
# to XML.
self.typed_default = '@%s %s' % (self.type, self.default)
result = ''
result += '%skey %s = %s\n' % (current_indent, self.name, self.typed_default or self.default)
current_indent += GSETTINGS_SIMPLE_SCHEMA_INDENT
if self.l10n:
l10n = self.l10n
if self.l10n_context:
l10n += ' %s' % self.l10n_context
result += '%sl10n: %s\n' % (current_indent, l10n)
if self.summary:
result += '%ssummary: %s\n' % (current_indent, self.summary)
if self.description:
result += '%sdescription: %s\n' % (current_indent, self.description)
if self._has_range_choices():
result += '%schoices: %s\n' % (current_indent, ', '.join(self.choices))
elif self._has_range_minmax():
result += '%srange: %s\n' % (current_indent, '%s..%s' % (self.range[0] or '', self.range[1] or ''))
return result
def get_xml_node(self):
key_node = ET.Element('key')
key_node.set('name', self.name)
key_node.set('type', self.type)
default_node = ET.SubElement(key_node, 'default')
default_node.text = self.default
if self.l10n:
default_node.set('l10n', self.l10n)
if self.l10n_context:
default_node.set('context', self.l10n_context)
if self.summary:
summary_node = ET.SubElement(key_node, 'summary')
summary_node.text = self.summary
if self.description:
description_node = ET.SubElement(key_node, 'description')
description_node.text = self.description
if self._has_range_choices():
choices_node = ET.SubElement(key_node, 'choices')
for choice in self.choices:
choice_node = ET.SubElement(choices_node, 'choice')
choice_node.set('value', choice)
elif self._has_range_minmax():
(min, max) = self.range
range_node = ET.SubElement(key_node, 'range')
min_node = ET.SubElement(range_node, 'min')
if min:
min_node.text = min
max_node = ET.SubElement(range_node, 'max')
if max:
max_node.text = max
return key_node
######################################
class SimpleSchemaParser:
allowed_tokens = {
'' : [ 'gettext-domain', 'schema' ],
'gettext-domain' : [ ],
'schema' : [ 'gettext-domain', 'path', 'child', 'key' ],
'path' : [ ],
'child' : [ 'gettext-domain', 'child', 'key' ],
'key' : [ 'l10n', 'summary', 'description', 'choices', 'range' ],
'l10n' : [ ],
'summary' : [ ],
'description' : [ ],
'choices' : [ ],
'range' : [ ]
}
allowed_separators = [ ':', '=' ]
def __init__(self, file):
self.file = file
self.root = GSettingsSchemaRoot()
# this is just a convenient helper to remove the leading indentation
# that should be common to all lines
self.leading_indent = None
self.indent_stack = []
self.token_stack = []
self.object_stack = [ self.root ]
self.previous_token = None
self.current_token = None
self.unparsed_line = ''
def _eat_indent(self):
line = self.unparsed_line
i = 0
buf = ''
previous_max_index = len(self.indent_stack) - 1
index = -1
while i < len(line) - 1 and line[i].isspace():
buf += line[i]
i += 1
if previous_max_index > index:
if buf == self.indent_stack[index + 1]:
buf = ''
index += 1
continue
elif self.indent_stack[index + 1].startswith(buf):
continue
else:
raise GSettingsSchemaConvertException('Inconsistent indentation.')
else:
continue
if buf and previous_max_index > index:
raise GSettingsSchemaConvertException('Inconsistent indentation.')
elif buf and previous_max_index <= index:
self.indent_stack.append(buf)
elif previous_max_index > index:
self.indent_stack = self.indent_stack[:index + 1]
self.unparsed_line = line[i:]
def _parse_word(self):
line = self.unparsed_line
i = 0
while i < len(line) and not line[i].isspace() and not line[i] in self.allowed_separators:
i += 1
self.unparsed_line = line[i:]
return line[:i]
def _word_to_token(self, word):
lower = word.lower()
if lower and lower in self.allowed_tokens.keys():
return lower
raise GSettingsSchemaConvertException('\'%s\' is not a valid token.' % lower)
def _token_allow_separator(self):
return self.current_token in [ 'gettext-domain', 'path', 'l10n', 'summary', 'description', 'choices', 'range' ]
def _parse_id_without_separator(self):
line = self.unparsed_line
if line[-1] in self.allowed_separators:
line = line[:-1].strip()
if not is_schema_id_valid(line):
raise GSettingsSchemaConvertException('\'%s\' is not a valid schema id.' % line)
self.unparsed_line = ''
return line
def _parse_key(self):
line = self.unparsed_line
split = False
for separator in self.allowed_separators:
items = line.split(separator)
if len(items) == 2:
split = True
break
if not split:
raise GSettingsSchemaConvertException('Key \'%s\' cannot be parsed.' % line)
name = items[0].strip()
if not is_key_name_valid(name):
raise GSettingsSchemaConvertException('\'%s\' is not a valid key name.' % name)
type = ''
value = items[1].strip()
if value[0] == '@':
i = 1
while not value[i].isspace():
i += 1
type = value[1:i]
value = value[i:].strip()
if not value:
raise GSettingsSchemaConvertException('No value specified for key \'%s\' (\'%s\').' % (name, line))
self.unparsed_line = ''
object = GSettingsSchemaKey()
object.name = name
object.type = type
object.default = value
return object
def _parse_l10n(self):
line = self.unparsed_line
items = [ item.strip() for item in line.split(' ', 1) if item.strip() ]
if not items:
self.unparsed_line = ''
return (None, None)
if len(items) == 1:
self.unparsed_line = ''
return (items[0], None)
if len(items) == 2:
self.unparsed_line = ''
return (items[0], items[1])
raise GSettingsSchemaConvertException('Internal error: more items than expected for localization \'%s\'.' % line)
def _parse_choices(self, object):
if object.type not in TYPES_FOR_CHOICES:
raise GSettingsSchemaConvertException('Key \'%s\' of type \'%s\' cannot have choices.' % (object.name, object.type))
line = self.unparsed_line
choices = [ item.strip() for item in line.split(',') ]
if not are_choices_valid(choices):
raise GSettingsSchemaConvertException('\'%s\' is not a valid choice.' % line)
self.unparsed_line = ''
return choices
def _parse_range(self, object):
if object.type not in TYPES_FOR_RANGE:
raise GSettingsSchemaConvertException('Key \'%s\' of type \'%s\' cannot have a range.' % (object.name, object.type))
line = self.unparsed_line
minmax = [ item.strip() for item in line.split('..') ]
if len(minmax) != 2:
raise GSettingsSchemaConvertException('Range \'%s\' cannot be parsed.' % line)
if not is_range_valid(minmax):
raise GSettingsSchemaConvertException('\'%s\' is not a valid range.' % line)
self.unparsed_line = ''
return tuple(minmax)
def parse_line(self, line):
# make sure that lines with only spaces are ignored and considered as
# empty lines
self.unparsed_line = line.rstrip()
# ignore empty line
if not self.unparsed_line:
return
# look at the indentation to know where we should be
self._eat_indent()
if self.leading_indent is None:
self.leading_indent = len(self.indent_stack)
# ignore comments
if self.unparsed_line[0] == '#':
return
word = self._parse_word()
if self.current_token:
self.previous_token = self.current_token
self.current_token = self._word_to_token(word)
self.unparsed_line = self.unparsed_line.lstrip()
allow_separator = self._token_allow_separator()
if len(self.unparsed_line) > 0 and self.unparsed_line[0] in self.allowed_separators:
if allow_separator:
self.unparsed_line = self.unparsed_line[1:].lstrip()
else:
raise GSettingsSchemaConvertException('Separator \'%s\' is not allowed after \'%s\'.' % (self.unparsed_line[0], self.current_token))
new_level = len(self.indent_stack) - self.leading_indent
old_level = len(self.token_stack)
if new_level > old_level + 1:
raise GSettingsSchemaConvertException('Internal error: stacks not in sync.')
elif new_level <= old_level:
self.token_stack = self.token_stack[:new_level]
# we always have the root
self.object_stack = self.object_stack[:new_level + 1]
if new_level == 0:
parent_token = ''
else:
parent_token = self.token_stack[-1]
# there's new indentation, but no token is allowed under the previous
# one
if new_level == old_level + 1 and self.previous_token != parent_token:
raise GSettingsSchemaConvertException('\'%s\' is not allowed under \'%s\'.' % (self.current_token, self.previous_token))
if not self.current_token in self.allowed_tokens[parent_token]:
if parent_token:
error = '\'%s\' is not allowed under \'%s\'.' % (self.current_token, parent_token)
else:
error = '\'%s\' is not allowed at the root level.' % self.current_token
raise GSettingsSchemaConvertException(error)
current_object = self.object_stack[-1]
new_object = None
if self.current_token == 'gettext-domain':
current_object.gettext_domain = self.unparsed_line
elif self.current_token == 'schema':
name = self._parse_id_without_separator()
new_object = GSettingsSchema()
new_object.id = name
current_object.schemas.append(new_object)
elif self.current_token == 'path':
current_object.path = self.unparsed_line
elif self.current_token == 'child':
if not isinstance(current_object, GSettingsSchema):
raise GSettingsSchemaConvertException('Internal error: child being processed with no parent schema.')
name = self._parse_id_without_separator()
new_object = GSettingsSchema()
new_object.id = '%s.%s' % (current_object.id, name)
if current_object.path:
new_object.path = '%s%s/' % (current_object.path, name)
new_object.name = name
current_object.children.append(new_object)
elif self.current_token == 'key':
new_object = self._parse_key()
current_object.keys.append(new_object)
elif self.current_token == 'l10n':
(current_object.l10n, current_object.l10n_context) = self._parse_l10n()
elif self.current_token == 'summary':
current_object.summary = self.unparsed_line
elif self.current_token == 'description':
current_object.description = self.unparsed_line
elif self.current_token == 'choices':
current_object.choices = self._parse_choices(current_object)
elif self.current_token == 'range':
current_object.range = self._parse_range(current_object)
if new_object:
self.token_stack.append(self.current_token)
self.object_stack.append(new_object)
def parse(self):
f = open(self.file, 'r')
lines = [ line[:-1] for line in f.readlines() ]
f.close()
try:
current_line_nb = 0
for line in lines:
current_line_nb += 1
self.parse_line(line)
except GSettingsSchemaConvertException, e:
raise GSettingsSchemaConvertException('%s:%s: %s' % (os.path.basename(self.file), current_line_nb, e))
return self.root
######################################
class XMLSchemaParser:
def __init__(self, file):
self.file = file
self.root = None
def _parse_key(self, key_node, schema):
key = GSettingsSchemaKey()
key.name = key_node.get('name')
if not key.name:
raise GSettingsSchemaConvertException('A key in schema \'%s\' has no name.' % schema.id)
key.type = key_node.get('type')
if not key.type:
raise GSettingsSchemaConvertException('Key \'%s\' in schema \'%s\' has no type.' % (key.name, schema.id))
default_node = key_node.find('default')
if default_node is None or not default_node.text.strip():
raise GSettingsSchemaConvertException('Key \'%s\' in schema \'%s\' has no default value.' % (key.name, schema.id))
key.l10n = default_node.get('l10n')
key.l10n_context = default_node.get('context')
key.default = default_node.text.strip()
summary_node = key_node.find('summary')
if summary_node is not None:
key.summary = summary_node.text.strip()
description_node = key_node.find('description')
if description_node is not None:
key.description = description_node.text.strip()
range_node = key_node.find('range')
if range_node is not None:
min = None
max = None
min_node = range_node.find('min')
if min_node is not None:
min = min_node.text.strip()
max_node = range_node.find('max')
if max_node is not None:
max = max_node.text.strip()
if min or max:
self.range = (min, max)
choices_node = key_node.find('choices')
if choices_node is not None:
self.choices = []
for choice_node in choices_node.findall('choice'):
value = choice_node.get('value')
if value:
self.choices.append(value)
else:
raise GSettingsSchemaConvertException('A choice for key \'%s\' in schema \'%s\' has no value.' % (key.name, schema.id))
return key
def _parse_schema(self, schema_node):
schema = GSettingsSchema()
schema._children = []
schema.id = schema_node.get('id')
if not schema.id:
raise GSettingsSchemaConvertException('A schema has no id.')
schema.path = schema_node.get('path')
schema.gettext_domain = schema_node.get('gettext-domain')
for key_node in schema_node.findall('key'):
key = self._parse_key(key_node, schema)
schema.keys.append(key)
for child_node in schema_node.findall('child'):
child_name = child_node.get('name')
if not child_name:
raise GSettingsSchemaConvertException('A child of schema \'%s\' has no name.' % schema.id)
child_schema = child_node.get('schema')
if not child_schema:
raise GSettingsSchemaConvertException('Child \'%s\' of schema \'%s\' has no schema.' % (child_name, schema.id))
expected_id = schema.id + '.' + child_name
if child_schema != expected_id:
raise GSettingsSchemaConvertException('\'%s\' is too complex for this tool: child \'%s\' of schema \'%s\' has a schema that is not the expected one (\'%s\' vs \'%s\').' % (os.path.basename(self.file), child_name, schema.id, child_schema, expected_id))
schema._children.append((child_schema, child_name))
return schema
def parse(self):
self.root = GSettingsSchemaRoot()
schemas = []
parent = {}
schemalist_node = ET.parse(self.file).getroot()
self.root.gettext_domain = schemalist_node.get('gettext-domain')
for schema_node in schemalist_node.findall('schema'):
schema = self._parse_schema(schema_node)
for (child_schema, child_name) in schema._children:
if parent.has_key(child_schema):
raise GSettingsSchemaConvertException('Child \'%s\' is declared by two different schemas: \'%s\' and \'%s\'.' % (child_schema, parent[child_schema], schema.id))
parent[child_schema] = schema
schemas.append(schema)
# now let's move all schemas where they should leave
for schema in schemas:
if parent.has_key(schema.id):
parent_schema = parent[schema.id]
# check that the paths of parent and child are supported by
# this tool
found = False
for (child_schema, child_name) in parent_schema._children:
if child_schema == schema.id:
found = True
break
if not found:
raise GSettingsSchemaConvertException('Internal error: child not found in parent\'s children.')
schema.name = child_name
parent_schema.children.append(schema)
else:
self.root.schemas.append(schema)
return self.root
######################################
def map_gconf_type_to_variant_type(gconftype, gconfsubtype):
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typemap = { 'string': 's', 'int': 'i', 'float': 'd', 'bool': 'b', 'list': 'a' }
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result = typemap[gconftype]
if gconftype == 'list':
result = result + typemap[gconfsubtype]
return result
class GConfSchema:
def __init__(self, node):
locale_node = node.find('locale')
self.key = node.find('key').text
self.type = node.find('type').text
if self.type == 'list':
self.list_type = node.find('list_type').text
else:
self.list_type = None
self.varianttype = map_gconf_type_to_variant_type(self.type, self.list_type)
applyto_node = node.find('applyto')
if applyto_node is not None:
self.applyto = node.find('applyto').text
self.applyto.strip()
self.keyname = self.applyto[self.applyto.rfind('/')+1:]
self.prefix = self.applyto[:self.applyto.rfind('/')+1]
else:
self.applyto = None
self.key.strip()
self.keyname = self.key[self.key.rfind('/')+1:]
self.prefix = self.key[:self.key.rfind('/')+1]
self.prefix = os.path.normpath(self.prefix)
try:
self.default = locale_node.find('default').text
self.localized = 'messages'
except:
try:
self.default = node.find('default').text
self.localized = None
except:
raise GSettingsSchemaConvertException('No default value for key \'%s\'. A default value is always required in GSettings schemas.' % self.applyto or self.key)
self.typed_default = None
self.short = self._get_value_with_locale(node, locale_node, 'short')
self.long = self._get_value_with_locale(node, locale_node, 'long')
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if self.short:
self.short = self._oneline(self.short)
if self.long:
self.long = self._oneline(self.long)
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# Fix the default to be parsable by GVariant
if self.type == 'string':
if not self.default:
self.default = '\'\''
else:
self.default.replace('\'', '\\\'')
self.default = '\'%s\'' % self.default
elif self.type == 'bool':
self.default = self.default.lower()
elif self.type == 'list':
l = self.default.strip()
if not (l[0] == '[' and l[-1] == ']'):
raise GSettingsSchemaConvertException('Cannot parse default list value \'%s\' for key \'%s\'.' % (self.default, self.applyto or self.key))
values = l[1:-1].strip()
if not values:
self.typed_default = '@%s []' % self.varianttype
elif self.list_type == 'string':
items = [ item.strip() for item in values.split(',') ]
items = [ item.replace('\'', '\\\'') for item in items ]
values = ', '.join([ '\'%s\'' % item for item in items ])
self.default = '[ %s ]' % values
def _get_value_with_locale(self, node, locale_node, element):
element_node = None
if locale_node is not None:
element_node = locale_node.find(element)
if element_node is None:
element_node = node.find(element)
if element_node is not None:
return element_node.text
else:
return None
def _oneline(self, s):
lines = s.splitlines()
result = ''
for line in lines:
result += ' ' + line.lstrip()
return result.strip()
def get_gsettings_schema_key(self):
key = GSettingsSchemaKey()
key.fill(self.keyname, self.varianttype, self.default, self.typed_default, self.localized, self.keyname, self.short, self.long, None, None)
return key
######################################
class GConfSchemaParser:
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def __init__(self, file, default_gettext_domain, default_schema_id):
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self.file = file
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self.default_gettext_domain = default_gettext_domain
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self.default_schema_id = default_schema_id
self.root = None
self.default_schema_id_count = 0
def _insert_schema(self, gconf_schema):
schemas_only = (gconf_schema.applyto is None)
dirpath = gconf_schema.prefix
if dirpath[0] != '/':
raise GSettingsSchemaConvertException('Key \'%s\' has a relative path. There is no relative path in GSettings schemas.' % gconf_schema.applyto or gconf_schema.key)
# remove leading 'schemas/' for schemas-only keys
if schemas_only and dirpath.startswith('/schemas/'):
dirpath = dirpath[len('/schemas'):]
if len(dirpath) == 1:
raise GSettingsSchemaConvertException('Key \'%s\' is a toplevel key. Toplevel keys are not accepted in GSettings schemas.' % gconf_schema.applyto or gconf_schema.key)
# remove trailing slash because we'll split the string
if dirpath[-1] == '/':
dirpath = dirpath[:-1]
# and also remove leading slash when splitting
hierarchy = dirpath[1:].split('/')
# we don't want to put apps/ and desktop/ keys in the same schema,
# so we have a first step where we make sure to create a new schema
# to avoid this case if necessary
gsettings_schema = None
for schema in self.root.schemas:
if schemas_only:
schema_path = schema._hacky_path
else:
schema_path = schema.path
if dirpath.startswith(schema_path):
gsettings_schema = schema
break
if not gsettings_schema:
gsettings_schema = GSettingsSchema()
if schemas_only:
gsettings_schema._hacky_path = '/' + hierarchy[0] + '/'
else:
gsettings_schema.path = '/' + hierarchy[0] + '/'
self.root.schemas.append(gsettings_schema)
# we create the schema hierarchy that leads to this key
gsettings_dir = gsettings_schema
for item in hierarchy[1:]:
subdir = None
for child in gsettings_dir.children:
if child.name == item:
subdir = child
break
if not subdir:
subdir = GSettingsSchema()
# note: the id will be set later on
if gsettings_dir.path:
subdir.path = '%s%s/' % (gsettings_dir.path, item)
subdir.name = item
gsettings_dir.children.append(subdir)
gsettings_dir = subdir
# we have the final directory, so we can put the key there
gsettings_dir.keys.append(gconf_schema.get_gsettings_schema_key())
def _set_children_id(self, schema):
for child in schema.children:
child.id = '%s.%s' % (schema.id, child.name)
self._set_children_id(child)
def _fix_hierarchy(self):
for schema in self.root.schemas:
# we created one schema per level, starting at the root level;
# however, we don't need to go that far and we can simplify the
# hierarchy
while len(schema.children) == 1 and not schema.keys:
child = schema.children[0]
schema.children = child.children
schema.keys = child.keys
if schema.path:
schema.path += child.name + '/'
# now that we have a toplevel schema, set the id
if self.default_schema_id:
schema.id = self.default_schema_id
if self.default_schema_id_count > 0:
schema.id += '.FIXME-%s' % self.default_schema_id_count
self.default_schema_id_count += 1
else:
schema.id = 'FIXME'
self._set_children_id(schema)
def parse(self):
# reset the state of the parser
self.root = GSettingsSchemaRoot()
self.default_schema_id_count = 0
gconfschemafile_node = ET.parse(self.file).getroot()
for schemalist_node in gconfschemafile_node.findall('schemalist'):
for schema_node in schemalist_node.findall('schema'):
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gconf_schema = GConfSchema(schema_node)
if gconf_schema.localized:
self.root.gettext_domain = self.default_gettext_domain or 'FIXME'
self._insert_schema(gconf_schema)
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self._fix_hierarchy()
return self.root
######################################
def main(args):
parser = optparse.OptionParser()
parser.add_option("-o", "--output", dest="output",
help="output file")
parser.add_option("-g", "--gconf", action="store_true", dest="gconf",
default=False, help="convert a gconf schema file")
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parser.add_option("-d", "--gettext-domain", dest="gettext_domain",
help="default gettext domain to use when converting gconf schema file")
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parser.add_option("-i", "--schema-id", dest="schema_id",
help="default schema ID to use when converting gconf schema file")
parser.add_option("-s", "--simple", action="store_true", dest="simple",
default=False, help="use the simple schema format as output (only for gconf schema conversion)")
parser.add_option("-x", "--xml", action="store_true", dest="xml",
default=False, help="use the xml schema format as output")
parser.add_option("-f", "--force", action="store_true", dest="force",
default=False, help="overwrite output file if already existing")
(options, args) = parser.parse_args()
if len(args) < 1:
print >> sys.stderr, 'Need a filename to work on.'
return 1
elif len(args) > 1:
print >> sys.stderr, 'Too many arguments.'
return 1
if options.simple and options.xml:
print >> sys.stderr, 'Too many output formats requested.'
return 1
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if not options.gconf and options.gettext_domain:
print >> sys.stderr, 'Default gettext domain can only be specified when converting a gconf schema.'
return 1
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if not options.gconf and options.schema_id:
print >> sys.stderr, 'Default schema ID can only be specified when converting a gconf schema.'
return 1
argfile = os.path.expanduser(args[0])
if not os.path.exists(argfile):
print >> sys.stderr, '\'%s\' does not exist.' % argfile
return 1
if options.output:
options.output = os.path.expanduser(options.output)
try:
if options.output and not options.force and os.path.exists(options.output):
raise GSettingsSchemaConvertException('\'%s\' already exists. Use --force to overwrite it.' % options.output)
if options.gconf:
if not options.simple and not options.xml:
options.simple = True
try:
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parser = GConfSchemaParser(argfile, options.gettext_domain, options.schema_id)
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schema_root = parser.parse()
except SyntaxError, e:
raise GSettingsSchemaConvertException('\'%s\' does not look like a valid gconf schema file: %s' % (argfile, e))
else:
# autodetect if file is XML or not
try:
parser = XMLSchemaParser(argfile)
schema_root = parser.parse()
if not options.simple and not options.xml:
options.simple = True
except SyntaxError, e:
parser = SimpleSchemaParser(argfile)
schema_root = parser.parse()
if not options.simple and not options.xml:
options.xml = True
if options.xml:
node = schema_root.get_xml_node()
tree = ET.ElementTree(node)
try:
output = ET.tostring(tree, pretty_print = True)
except TypeError:
# pretty_print only works with lxml
output = ET.tostring(tree)
else:
output = schema_root.get_simple_string()
if not options.output:
sys.stdout.write(output)
else:
try:
fout = open(options.output, 'w')
fout.write(output)
fout.close()
except GSettingsSchemaConvertException, e:
fout.close()
if os.path.exists(options.output):
os.unlink(options.output)
raise e
except GSettingsSchemaConvertException, e:
print >> sys.stderr, '%s' % e
return 1
return 0
if __name__ == '__main__':
try:
res = main(sys.argv)
sys.exit(res)
except KeyboardInterrupt:
pass
