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9bd29bbaa6
Add a read and write map pointer. This means you can read from a user defined map through to the global map while pointing all write to only the global map therefore supporting overrides cleanly. Print the list of loaded files when printing. Provide helper calls for type and attributes.
380 lines
13 KiB
Python
380 lines
13 KiB
Python
#
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# RTEMS Tools Project (http://www.rtems.org/)
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# Copyright 2010-2013 Chris Johns (chrisj@rtems.org)
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# All rights reserved.
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#
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# This file is part of the RTEMS Tools package in 'rtems-tools'.
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#
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# Permission to use, copy, modify, and/or distribute this software for any
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# purpose with or without fee is hereby granted, provided that the above
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# copyright notice and this permission notice appear in all copies.
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#
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# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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#
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# Macro tables.
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#
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import re
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import os
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import string
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import error
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import path
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#
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# Macro tables
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#
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class macros:
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class macro_iterator:
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def __init__(self, keys):
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self.keys = keys
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self.index = 0
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def __iter__(self):
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return self
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def next(self):
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if self.index < len(self.keys):
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key = self.keys[self.index]
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self.index += 1
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return key
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raise StopIteration
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def iterkeys(self):
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return self.keys
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def __init__(self, name = None, original = None, sbdir = '.'):
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self.files = []
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self.macro_filter = re.compile(r'%{[^}]+}')
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if original is None:
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self.macros = {}
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self.read_map = 'global'
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self.write_map = 'global'
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self.macros[self.read_map] = {}
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self.macros[self.read_map]['_cwd'] = ('dir', 'required', path.shell(os.getcwd()))
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self.macros[self.read_map]['_sbdir'] = ('dir', 'required', path.shell(sbdir))
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else:
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self.macros = {}
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for m in original.macros:
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if m not in self.macros:
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self.macros[m] = {}
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for k in original.macros[m]:
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self.macros[m][k] = original.macros[m][k]
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self.read_map = original.read_map
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self.write_map = original.write_map
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if name is not None:
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self.load(name)
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def __copy__(self):
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return macros(original = self)
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def __str__(self):
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text_len = 80
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text = ''
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for f in self.files:
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text += '> %s%s' % (f, os.linesep)
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for map in self.macros:
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text += '[%s]%s' % (map, os.linesep)
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for k in sorted(self.macros[map].keys()):
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d = self.macros[map][k]
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text += " %s:%s '%s'%s '%s'%s" % \
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(k, ' ' * (20 - len(k)),
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d[0], ' ' * (8 - len(d[0])),
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d[1], ' ' * (10 - len(d[1])))
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if len(d[2]) == 0:
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text += "''%s" % (os.linesep)
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else:
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if '\n' in d[2]:
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text += "'''"
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else:
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text += "'"
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indent = False
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ds = d[2].split('\n')
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lc = 0
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for l in ds:
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lc += 1
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while len(l):
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if indent:
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text += ' %21s %10s %12s' % (' ', ' ', ' ')
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text += l[0:text_len]
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l = l[text_len:]
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if len(l):
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text += ' \\'
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elif lc == len(ds):
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if len(ds) > 1:
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text += "'''"
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else:
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text += "'"
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text += '%s' % (os.linesep)
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indent = True
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return text
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def __iter__(self):
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return macros.macro_iterator(self.macros[self.read_map].keys())
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def __getitem__(self, key):
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macro = self.get(key)
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if macro is None:
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raise IndexError('key: %s' % (key))
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return macro[2]
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def __setitem__(self, key, value):
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if type(key) is not str:
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raise TypeError('bad key type (want str): %s' % (type(key)))
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if type(value) is str:
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value = ('none', 'none', value)
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if type(value) is not tuple:
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raise TypeError('bad value type (want tuple): %s' % (type(value)))
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if len(value) != 3:
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raise TypeError('bad value tuple (len not 3): %d' % (len(value)))
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if type(value[0]) is not str:
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raise TypeError('bad value tuple type field: %s' % (type(value[0])))
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if type(value[1]) is not str:
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raise TypeError('bad value tuple attrib field: %s' % (type(value[1])))
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if type(value[2]) is not str:
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raise TypeError('bad value tuple value field: %s' % (type(value[2])))
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if value[0] not in ['none', 'triplet', 'dir', 'file', 'exe']:
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raise TypeError('bad value tuple (type field): %s' % (value[0]))
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if value[1] not in ['none', 'optional', 'required', 'override']:
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raise TypeError('bad value tuple (attrib field): %s' % (value[1]))
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self.macros[self.write_map][self.key_filter(key)] = value
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def __delitem__(self, key):
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self.undefine(key)
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def __contains__(self, key):
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return self.has_key(key)
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def __len__(self):
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return len(self.keys())
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def keys(self):
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k = self.macros[self.read_map].keys()
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if map is not 'global':
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k += self.macros['global'].keys()
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return sorted(set(k))
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def has_key(self, key):
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if type(key) is not str:
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raise TypeError('bad key type (want str): %s' % (type(key)))
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key = self.key_filter(key)
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if key not in self.macros[self.read_map].keys():
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if key not in self.macros['global'].keys():
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return False
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return True
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def maps(self):
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return self.macros.keys()
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def key_filter(self, key):
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if key.startswith('%{') and key[-1] is '}':
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key = key[2:-1]
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return key.lower()
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def parse(self, lines):
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macros = { 'global': {} }
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map = 'global'
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lc = 0
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state = 'key'
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token = ''
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macro = []
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for l in lines:
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lc += 1
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#print 'l:%s' % (l[:-1])
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if len(l) == 0:
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continue
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for c in l:
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#print ']]]]]]]] c:%s(%d) s:%s t:"%s" m:%r M:%s' % (c, ord(c), state, token, macro, map)
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if c is '#' and not state.startswith('value'):
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break
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if c == '\n' or c == '\r':
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if not (state is 'key' and len(token) == 0) and \
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not state.startswith('value-multiline'):
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raise error.general('malformed macro line:%d: %s' % (lc, l))
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if state is 'key':
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if c not in string.whitespace:
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if c is '[':
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state = 'map'
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elif c is ':':
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macro += [token]
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token = ''
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state = 'attribs'
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elif c is '#':
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break
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else:
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token += c
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elif state is 'map':
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if c is ']':
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if token not in macros:
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macros[token] = {}
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map = token
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token = ''
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state = 'key'
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elif c in string.printable and c not in string.whitespace:
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token += c
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else:
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raise error.general('invalid macro map:%d: %s' % (lc, l))
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elif state is 'attribs':
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if c not in string.whitespace:
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if c is ',':
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macro += [token]
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token = ''
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if len(macro) == 3:
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state = 'value-start'
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else:
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token += c
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elif state is 'value-start':
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if c is "'":
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state = 'value-line-start'
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elif state is 'value-line-start':
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if c is "'":
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state = 'value-multiline-start'
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else:
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state = 'value-line'
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token += c
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elif state is 'value-multiline-start':
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if c is "'":
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state = 'value-multiline'
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else:
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macro += [token]
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state = 'macro'
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elif state is 'value-line':
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if c is "'":
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macro += [token]
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state = 'macro'
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else:
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token += c
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elif state is 'value-multiline':
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if c is "'":
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state = 'value-multiline-end'
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else:
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token += c
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elif state is 'value-multiline-end':
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if c is "'":
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state = 'value-multiline-end-end'
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else:
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state = 'value-multiline'
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token += "'" + c
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elif state is 'value-multiline-end-end':
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if c is "'":
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macro += [token]
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state = 'macro'
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else:
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state = 'value-multiline'
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token += "''" + c
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else:
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raise error.internal('bad state: %s' % (state))
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if state is 'macro':
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macros[map][macro[0].lower()] = (macro[1], macro[2], macro[3])
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macro = []
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token = ''
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state = 'key'
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return macros
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def load(self, name):
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try:
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name = self.expand(name)
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mc = open(name, 'r')
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except IOError, err:
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raise error.general('opening macro file: %s' % (path.host(name)))
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macros = self.parse(mc)
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mc.close()
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for m in macros:
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if m not in self.macros:
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self.macros[m] = {}
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for mm in macros[m]:
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self.macros[m][mm] = macros[m][mm]
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self.files += [name]
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def get(self, key):
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if type(key) is not str:
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raise TypeError('bad key type: %s' % (type(key)))
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key = self.key_filter(key)
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if self.read_map is not 'global'and key in self.macros[self.read_map]:
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return self.macros[self.read_map][key]
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if key in self.macros['global']:
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return self.macros['global'][key]
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return None
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def get_type(self, key):
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m = self.get(key)
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if m is None:
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return None
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return m[0]
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def get_attribute(self, key):
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m = self.get(key)
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if m is None:
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return None
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return m[1]
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def overridden(self, key):
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return self.get_attribute(key) == 'override'
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def define(self, key, value = '1'):
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if type(key) is not str:
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raise TypeError('bad key type: %s' % (type(key)))
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self.__setitem__(key, ('none', 'none', value))
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def undefine(self, key):
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if type(key) is not str:
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raise TypeError('bad key type: %s' % (type(key)))
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key = self.key_filter(key)
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for map in self.macros:
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if key in self.macros[map]:
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del self.macros[map][key]
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def expand(self, _str):
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"""Simple basic expander of config file macros."""
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expanded = True
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while expanded:
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expanded = False
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for m in self.macro_filter.findall(_str):
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name = m[2:-1]
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macro = self.get(name)
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if macro is None:
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raise error.general('cannot expand default macro: %s in "%s"' %
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(m, _str))
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_str = _str.replace(m, macro[2])
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expanded = True
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return _str
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def find(self, regex):
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what = re.compile(regex)
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keys = []
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for key in self.keys():
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if what.match(key):
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keys += [key]
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return keys
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def set_read_map(self, map):
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if map in self.macros:
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self.read_map = map
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return True
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return False
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def set_write_map(self, map):
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if map in self.macros:
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self.write_map = map
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return True
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return False
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if __name__ == "__main__":
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import copy
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import sys
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m = macros(name = 'defaults.mc')
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d = copy.copy(m)
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m['test1'] = 'something'
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if d.has_key('test1'):
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print 'error: copy failed.'
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sys.exit(1)
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print m
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