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-rw-r--r--portato/dependency.py260
1 files changed, 130 insertions, 130 deletions
diff --git a/portato/dependency.py b/portato/dependency.py
index cce7360..ef06e41 100644
--- a/portato/dependency.py
+++ b/portato/dependency.py
@@ -23,176 +23,176 @@ from .backend import system
class Dependency (object):
- """
- A simple dependency as it also is noted inside ebuilds.
+ """
+ A simple dependency as it also is noted inside ebuilds.
- :IVariables:
+ :IVariables:
- dep : string
- The dependency string. It is immutable.
+ dep : string
+ The dependency string. It is immutable.
- satisfied : boolean
- Is this dependency satisfied?
- """
+ satisfied : boolean
+ Is this dependency satisfied?
+ """
- def __init__ (self, dep):
- """
- Creates a dependency out of a dep string.
+ def __init__ (self, dep):
+ """
+ Creates a dependency out of a dep string.
- :param dep: dependency string
- :type dep: string
- """
- self._dep = dep
+ :param dep: dependency string
+ :type dep: string
+ """
+ self._dep = dep
- def is_satisfied (self):
- """
- Checks if this dependency is satisfied.
+ def is_satisfied (self):
+ """
+ Checks if this dependency is satisfied.
- :rtype: boolean
- """
- return system.find_best_match(self.dep, only_cpv = True, only_installed = True) is not None
+ :rtype: boolean
+ """
+ return system.find_best_match(self.dep, only_cpv = True, only_installed = True) is not None
- def __cmp__ (self, b):
- return cmp(self.dep, b.dep)
+ def __cmp__ (self, b):
+ return cmp(self.dep, b.dep)
- def __hash__ (self):
- return hash(self.dep)
+ def __hash__ (self):
+ return hash(self.dep)
- def __str__ (self):
- return "<Dependency '%s'>" % self.dep
+ def __str__ (self):
+ return "<Dependency '%s'>" % self.dep
- __repr__ = __str__
+ __repr__ = __str__
- @property
- def dep (self):
- return self._dep
+ @property
+ def dep (self):
+ return self._dep
- satisfied = property(is_satisfied)
+ satisfied = property(is_satisfied)
class OrDependency (Dependency):
- """
- Dependency representing an "or".
-
- :note: Order is important. ``|| ( a b )`` != ``|| ( b a )``
-
- :IVariables:
-
- dep : tuple(`Dependency`,...)
- The dependencies. The tuple and the dependencies are immutable.
- """
-
- def __init__ (self, deps):
- """
- Creates an or-dependency out of a list (or tuple) of deps.
-
- :param deps: The or'ed dependencies.
- :type deps: iter<string>
- """
-
- _dep = []
- for dep in deps:
- if not hasattr(dep, "__iter__"):
- assert not dep.endswith("?")
- _dep.append(Dependency(dep))
- else:
- _dep.append(AllOfDependency(dep))
-
- self._dep = tuple(_dep)
-
- def __str__ (self):
- return "<|| %s>" % str(self.dep)
-
- __repr__ = __str__
+ """
+ Dependency representing an "or".
+
+ :note: Order is important. ``|| ( a b )`` != ``|| ( b a )``
+
+ :IVariables:
+
+ dep : tuple(`Dependency`,...)
+ The dependencies. The tuple and the dependencies are immutable.
+ """
+
+ def __init__ (self, deps):
+ """
+ Creates an or-dependency out of a list (or tuple) of deps.
+
+ :param deps: The or'ed dependencies.
+ :type deps: iter<string>
+ """
+
+ _dep = []
+ for dep in deps:
+ if not hasattr(dep, "__iter__"):
+ assert not dep.endswith("?")
+ _dep.append(Dependency(dep))
+ else:
+ _dep.append(AllOfDependency(dep))
+
+ self._dep = tuple(_dep)
+
+ def __str__ (self):
+ return "<|| %s>" % str(self.dep)
+
+ __repr__ = __str__
class AllOfDependency (Dependency):
- """
- Dependency representing a set of packages inside "or".
- If the or is: ``|| (a ( b c ) )`` the `AllOfDependency` would be the ``( b c )``.
+ """
+ Dependency representing a set of packages inside "or".
+ If the or is: ``|| (a ( b c ) )`` the `AllOfDependency` would be the ``( b c )``.
- :IVariables:
+ :IVariables:
- dep : tuple(`Dependency`,...)
- The dependencies . The tuple and the deps are immutable.
- """
+ dep : tuple(`Dependency`,...)
+ The dependencies . The tuple and the deps are immutable.
+ """
- def __init__ (self, deps):
- """
- Creates an or-dependency out of a list (or tuple) of deps.
+ def __init__ (self, deps):
+ """
+ Creates an or-dependency out of a list (or tuple) of deps.
- :param deps: The dependencies.
- :type deps: iter<string>
- """
+ :param deps: The dependencies.
+ :type deps: iter<string>
+ """
- self._dep = tuple(Dependency(dep) for dep in deps)
+ self._dep = tuple(Dependency(dep) for dep in deps)
- def __str__ (self):
- return "<ALL %s>" % str(self.dep)
-
- __repr__ = __str__
+ def __str__ (self):
+ return "<ALL %s>" % str(self.dep)
+
+ __repr__ = __str__
class DependencyTree (object):
- """
- The DependencyTree shows all dependencies for a package and shows which useflags want which dependencies.
+ """
+ The DependencyTree shows all dependencies for a package and shows which useflags want which dependencies.
- :IVariables:
+ :IVariables:
- deps : set(`Dependency`)
- The list of dependencies which are not dependent on a useflag.
+ deps : set(`Dependency`)
+ The list of dependencies which are not dependent on a useflag.
- flags : string -> `DependencyTree`
- Holds the additional dependency trees per useflag.
- """
+ flags : string -> `DependencyTree`
+ Holds the additional dependency trees per useflag.
+ """
- def __init__ (self):
+ def __init__ (self):
- self.deps = set()
- self.flags = {}
+ self.deps = set()
+ self.flags = {}
- def add (self, dep, *moredeps):
- """
- Adds one or more normal dependencies to the tree.
+ def add (self, dep, *moredeps):
+ """
+ Adds one or more normal dependencies to the tree.
- :Parameters:
+ :Parameters:
- dep : string
- A dependency string.
+ dep : string
+ A dependency string.
- moredeps
- More parameters are allowed :)
- """
- self.deps.add(Dependency(dep))
+ moredeps
+ More parameters are allowed :)
+ """
+ self.deps.add(Dependency(dep))
- for dep in moredeps:
- self.deps.add(Dependency(dep))
+ for dep in moredeps:
+ self.deps.add(Dependency(dep))
- def add_or (self, orlist):
- """
- Adds a list of dependencies, which are or'ed.
+ def add_or (self, orlist):
+ """
+ Adds a list of dependencies, which are or'ed.
- :param orlist: the dependency list
- :type orlist: iter<string>
- """
- self.deps.add(OrDependency(orlist))
+ :param orlist: the dependency list
+ :type orlist: iter<string>
+ """
+ self.deps.add(OrDependency(orlist))
- def add_flag (self, flag):
- """
- Adds a new useflag to this tree.
- For convenience the newly created sub-tree is returned.
+ def add_flag (self, flag):
+ """
+ Adds a new useflag to this tree.
+ For convenience the newly created sub-tree is returned.
- :param flag: the new flag
- :rtype: `DependencyTree`
- """
- if not flag in self.flags:
- self.flags[flag] = DependencyTree()
+ :param flag: the new flag
+ :rtype: `DependencyTree`
+ """
+ if not flag in self.flags:
+ self.flags[flag] = DependencyTree()
- return self.get_flag_tree(flag)
+ return self.get_flag_tree(flag)
- def get_flag_tree (self, flag):
- """
- Returns the sub-tree of a specific tree.
+ def get_flag_tree (self, flag):
+ """
+ Returns the sub-tree of a specific tree.
- :raises KeyError: if the flag is not (yet) in this tree
- :rtype: `DependencyTree`
- """
- return self.flags[flag]
+ :raises KeyError: if the flag is not (yet) in this tree
+ :rtype: `DependencyTree`
+ """
+ return self.flags[flag]