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m---------waflib0
-rw-r--r--waflib/ConfigSet.py361
2 files changed, 0 insertions, 361 deletions
diff --git a/waflib b/waflib
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+Subproject 2314e236ca6e7d94a26c3c17091da0f25f5867f
diff --git a/waflib/ConfigSet.py b/waflib/ConfigSet.py
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index 901fba6..0000000
--- a/waflib/ConfigSet.py
+++ /dev/null
@@ -1,361 +0,0 @@
-#!/usr/bin/env python
-# encoding: utf-8
-# Thomas Nagy, 2005-2018 (ita)
-
-"""
-
-ConfigSet: a special dict
-
-The values put in :py:class:`ConfigSet` must be serializable (dicts, lists, strings)
-"""
-
-import copy, re, os
-from waflib import Logs, Utils
-re_imp = re.compile(r'^(#)*?([^#=]*?)\ =\ (.*?)$', re.M)
-
-class ConfigSet(object):
- """
- A copy-on-write dict with human-readable serialized format. The serialization format
- is human-readable (python-like) and performed by using eval() and repr().
- For high performance prefer pickle. Do not store functions as they are not serializable.
-
- The values can be accessed by attributes or by keys::
-
- from waflib.ConfigSet import ConfigSet
- env = ConfigSet()
- env.FOO = 'test'
- env['FOO'] = 'test'
- """
- __slots__ = ('table', 'parent')
- def __init__(self, filename=None):
- self.table = {}
- """
- Internal dict holding the object values
- """
- #self.parent = None
-
- if filename:
- self.load(filename)
-
- def __contains__(self, key):
- """
- Enables the *in* syntax::
-
- if 'foo' in env:
- print(env['foo'])
- """
- if key in self.table:
- return True
- try:
- return self.parent.__contains__(key)
- except AttributeError:
- return False # parent may not exist
-
- def keys(self):
- """Dict interface"""
- keys = set()
- cur = self
- while cur:
- keys.update(cur.table.keys())
- cur = getattr(cur, 'parent', None)
- keys = list(keys)
- keys.sort()
- return keys
-
- def __iter__(self):
- return iter(self.keys())
-
- def __str__(self):
- """Text representation of the ConfigSet (for debugging purposes)"""
- return "\n".join(["%r %r" % (x, self.__getitem__(x)) for x in self.keys()])
-
- def __getitem__(self, key):
- """
- Dictionary interface: get value from key::
-
- def configure(conf):
- conf.env['foo'] = {}
- print(env['foo'])
- """
- try:
- while 1:
- x = self.table.get(key)
- if not x is None:
- return x
- self = self.parent
- except AttributeError:
- return []
-
- def __setitem__(self, key, value):
- """
- Dictionary interface: set value from key
- """
- self.table[key] = value
-
- def __delitem__(self, key):
- """
- Dictionary interface: mark the value as missing
- """
- self[key] = []
-
- def __getattr__(self, name):
- """
- Attribute access provided for convenience. The following forms are equivalent::
-
- def configure(conf):
- conf.env.value
- conf.env['value']
- """
- if name in self.__slots__:
- return object.__getattribute__(self, name)
- else:
- return self[name]
-
- def __setattr__(self, name, value):
- """
- Attribute access provided for convenience. The following forms are equivalent::
-
- def configure(conf):
- conf.env.value = x
- env['value'] = x
- """
- if name in self.__slots__:
- object.__setattr__(self, name, value)
- else:
- self[name] = value
-
- def __delattr__(self, name):
- """
- Attribute access provided for convenience. The following forms are equivalent::
-
- def configure(conf):
- del env.value
- del env['value']
- """
- if name in self.__slots__:
- object.__delattr__(self, name)
- else:
- del self[name]
-
- def derive(self):
- """
- Returns a new ConfigSet deriving from self. The copy returned
- will be a shallow copy::
-
- from waflib.ConfigSet import ConfigSet
- env = ConfigSet()
- env.append_value('CFLAGS', ['-O2'])
- child = env.derive()
- child.CFLAGS.append('test') # warning! this will modify 'env'
- child.CFLAGS = ['-O3'] # new list, ok
- child.append_value('CFLAGS', ['-O3']) # ok
-
- Use :py:func:`ConfigSet.detach` to detach the child from the parent.
- """
- newenv = ConfigSet()
- newenv.parent = self
- return newenv
-
- def detach(self):
- """
- Detaches this instance from its parent (if present)
-
- Modifying the parent :py:class:`ConfigSet` will not change the current object
- Modifying this :py:class:`ConfigSet` will not modify the parent one.
- """
- tbl = self.get_merged_dict()
- try:
- delattr(self, 'parent')
- except AttributeError:
- pass
- else:
- keys = tbl.keys()
- for x in keys:
- tbl[x] = copy.deepcopy(tbl[x])
- self.table = tbl
- return self
-
- def get_flat(self, key):
- """
- Returns a value as a string. If the input is a list, the value returned is space-separated.
-
- :param key: key to use
- :type key: string
- """
- s = self[key]
- if isinstance(s, str):
- return s
- return ' '.join(s)
-
- def _get_list_value_for_modification(self, key):
- """
- Returns a list value for further modification.
-
- The list may be modified inplace and there is no need to do this afterwards::
-
- self.table[var] = value
- """
- try:
- value = self.table[key]
- except KeyError:
- try:
- value = self.parent[key]
- except AttributeError:
- value = []
- else:
- if isinstance(value, list):
- # force a copy
- value = value[:]
- else:
- value = [value]
- self.table[key] = value
- else:
- if not isinstance(value, list):
- self.table[key] = value = [value]
- return value
-
- def append_value(self, var, val):
- """
- Appends a value to the specified config key::
-
- def build(bld):
- bld.env.append_value('CFLAGS', ['-O2'])
-
- The value must be a list or a tuple
- """
- if isinstance(val, str): # if there were string everywhere we could optimize this
- val = [val]
- current_value = self._get_list_value_for_modification(var)
- current_value.extend(val)
-
- def prepend_value(self, var, val):
- """
- Prepends a value to the specified item::
-
- def configure(conf):
- conf.env.prepend_value('CFLAGS', ['-O2'])
-
- The value must be a list or a tuple
- """
- if isinstance(val, str):
- val = [val]
- self.table[var] = val + self._get_list_value_for_modification(var)
-
- def append_unique(self, var, val):
- """
- Appends a value to the specified item only if it's not already present::
-
- def build(bld):
- bld.env.append_unique('CFLAGS', ['-O2', '-g'])
-
- The value must be a list or a tuple
- """
- if isinstance(val, str):
- val = [val]
- current_value = self._get_list_value_for_modification(var)
-
- for x in val:
- if x not in current_value:
- current_value.append(x)
-
- def get_merged_dict(self):
- """
- Computes the merged dictionary from the fusion of self and all its parent
-
- :rtype: a ConfigSet object
- """
- table_list = []
- env = self
- while 1:
- table_list.insert(0, env.table)
- try:
- env = env.parent
- except AttributeError:
- break
- merged_table = {}
- for table in table_list:
- merged_table.update(table)
- return merged_table
-
- def store(self, filename):
- """
- Serializes the :py:class:`ConfigSet` data to a file. See :py:meth:`ConfigSet.load` for reading such files.
-
- :param filename: file to use
- :type filename: string
- """
- try:
- os.makedirs(os.path.split(filename)[0])
- except OSError:
- pass
-
- buf = []
- merged_table = self.get_merged_dict()
- keys = list(merged_table.keys())
- keys.sort()
-
- try:
- fun = ascii
- except NameError:
- fun = repr
-
- for k in keys:
- if k != 'undo_stack':
- buf.append('%s = %s\n' % (k, fun(merged_table[k])))
- Utils.writef(filename, ''.join(buf))
-
- def load(self, filename):
- """
- Restores contents from a file (current values are not cleared). Files are written using :py:meth:`ConfigSet.store`.
-
- :param filename: file to use
- :type filename: string
- """
- tbl = self.table
- code = Utils.readf(filename, m='r')
- for m in re_imp.finditer(code):
- g = m.group
- tbl[g(2)] = eval(g(3))
- Logs.debug('env: %s', self.table)
-
- def update(self, d):
- """
- Dictionary interface: replace values with the ones from another dict
-
- :param d: object to use the value from
- :type d: dict-like object
- """
- self.table.update(d)
-
- def stash(self):
- """
- Stores the object state to provide transactionality semantics::
-
- env = ConfigSet()
- env.stash()
- try:
- env.append_value('CFLAGS', '-O3')
- call_some_method(env)
- finally:
- env.revert()
-
- The history is kept in a stack, and is lost during the serialization by :py:meth:`ConfigSet.store`
- """
- orig = self.table
- tbl = self.table = self.table.copy()
- for x in tbl.keys():
- tbl[x] = copy.deepcopy(tbl[x])
- self.undo_stack = self.undo_stack + [orig]
-
- def commit(self):
- """
- Commits transactional changes. See :py:meth:`ConfigSet.stash`
- """
- self.undo_stack.pop(-1)
-
- def revert(self):
- """
- Reverts the object to a previous state. See :py:meth:`ConfigSet.stash`
- """
- self.table = self.undo_stack.pop(-1)
-
generated by cgit v1.2.1 (git 2.18.0) at 2024-11-22 19:31:29 +0000