434 lines
15 KiB
Python
434 lines
15 KiB
Python
# ex:ts=4:sw=4:sts=4:et
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# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
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"""
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AbstractSyntaxTree classes for the Bitbake language
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"""
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# Copyright (C) 2003, 2004 Chris Larson
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# Copyright (C) 2003, 2004 Phil Blundell
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# Copyright (C) 2009 Holger Hans Peter Freyther
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License version 2 as
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# published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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import bb, re, string
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from bb import methodpool
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from itertools import chain
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__word__ = re.compile(r"\S+")
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__parsed_methods__ = bb.methodpool.get_parsed_dict()
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_bbversions_re = re.compile(r"\[(?P<from>[0-9]+)-(?P<to>[0-9]+)\]")
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class StatementGroup(list):
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def eval(self, data):
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map(lambda x: x.eval(data), self)
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class AstNode(object):
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pass
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class IncludeNode(AstNode):
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def __init__(self, what_file, fn, lineno, force):
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self.what_file = what_file
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self.from_fn = fn
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self.from_lineno = lineno
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self.force = force
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def eval(self, data):
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"""
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Include the file and evaluate the statements
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"""
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s = bb.data.expand(self.what_file, data)
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bb.msg.debug(3, bb.msg.domain.Parsing, "CONF %s:%d: including %s" % (self.from_fn, self.from_lineno, s))
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# TODO: Cache those includes... maybe not here though
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if self.force:
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bb.parse.ConfHandler.include(self.from_fn, s, data, "include required")
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else:
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bb.parse.ConfHandler.include(self.from_fn, s, data, False)
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class ExportNode(AstNode):
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def __init__(self, var):
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self.var = var
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def eval(self, data):
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bb.data.setVarFlag(self.var, "export", 1, data)
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class DataNode(AstNode):
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"""
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Various data related updates. For the sake of sanity
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we have one class doing all this. This means that all
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this need to be re-evaluated... we might be able to do
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that faster with multiple classes.
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"""
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def __init__(self, groupd):
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self.groupd = groupd
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def getFunc(self, key, data):
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if 'flag' in self.groupd and self.groupd['flag'] != None:
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return bb.data.getVarFlag(key, self.groupd['flag'], data)
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else:
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return bb.data.getVar(key, data)
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def eval(self, data):
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groupd = self.groupd
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key = groupd["var"]
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if "exp" in groupd and groupd["exp"] != None:
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bb.data.setVarFlag(key, "export", 1, data)
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if "ques" in groupd and groupd["ques"] != None:
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val = self.getFunc(key, data)
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if val == None:
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val = groupd["value"]
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elif "colon" in groupd and groupd["colon"] != None:
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e = data.createCopy()
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bb.data.update_data(e)
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val = bb.data.expand(groupd["value"], e)
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elif "append" in groupd and groupd["append"] != None:
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val = "%s %s" % ((self.getFunc(key, data) or ""), groupd["value"])
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elif "prepend" in groupd and groupd["prepend"] != None:
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val = "%s %s" % (groupd["value"], (self.getFunc(key, data) or ""))
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elif "postdot" in groupd and groupd["postdot"] != None:
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val = "%s%s" % ((self.getFunc(key, data) or ""), groupd["value"])
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elif "predot" in groupd and groupd["predot"] != None:
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val = "%s%s" % (groupd["value"], (self.getFunc(key, data) or ""))
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else:
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val = groupd["value"]
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if 'flag' in groupd and groupd['flag'] != None:
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bb.msg.debug(3, bb.msg.domain.Parsing, "setVarFlag(%s, %s, %s, data)" % (key, groupd['flag'], val))
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bb.data.setVarFlag(key, groupd['flag'], val, data)
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elif groupd["lazyques"]:
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assigned = bb.data.getVar("__lazy_assigned", data) or []
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assigned.append(key)
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bb.data.setVar("__lazy_assigned", assigned, data)
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bb.data.setVarFlag(key, "defaultval", val, data)
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else:
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bb.data.setVar(key, val, data)
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class MethodNode:
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def __init__(self, func_name, body, lineno, fn):
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self.func_name = func_name
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self.body = body
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self.fn = fn
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self.lineno = lineno
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def eval(self, data):
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if self.func_name == "__anonymous":
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funcname = ("__anon_%s_%s" % (self.lineno, self.fn.translate(string.maketrans('/.+-', '____'))))
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if not funcname in bb.methodpool._parsed_fns:
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text = "def %s(d):\n" % (funcname) + '\n'.join(self.body)
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bb.methodpool.insert_method(funcname, text, self.fn)
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anonfuncs = bb.data.getVar('__BBANONFUNCS', data) or []
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anonfuncs.append(funcname)
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bb.data.setVar('__BBANONFUNCS', anonfuncs, data)
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else:
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bb.data.setVarFlag(self.func_name, "func", 1, data)
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bb.data.setVar(self.func_name, '\n'.join(self.body), data)
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class PythonMethodNode(AstNode):
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def __init__(self, root, body, fn):
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self.root = root
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self.body = body
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self.fn = fn
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def eval(self, data):
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# Note we will add root to parsedmethods after having parse
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# 'this' file. This means we will not parse methods from
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# bb classes twice
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if not bb.methodpool.parsed_module(self.root):
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text = '\n'.join(self.body)
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bb.methodpool.insert_method(self.root, text, self.fn)
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class MethodFlagsNode(AstNode):
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def __init__(self, key, m):
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self.key = key
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self.m = m
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def eval(self, data):
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if bb.data.getVar(self.key, data):
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# clean up old version of this piece of metadata, as its
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# flags could cause problems
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bb.data.setVarFlag(self.key, 'python', None, data)
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bb.data.setVarFlag(self.key, 'fakeroot', None, data)
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if self.m.group("py") is not None:
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bb.data.setVarFlag(self.key, "python", "1", data)
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else:
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bb.data.delVarFlag(self.key, "python", data)
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if self.m.group("fr") is not None:
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bb.data.setVarFlag(self.key, "fakeroot", "1", data)
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else:
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bb.data.delVarFlag(self.key, "fakeroot", data)
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class ExportFuncsNode(AstNode):
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def __init__(self, fns, classes):
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self.n = __word__.findall(fns)
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self.classes = classes
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def eval(self, data):
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for f in self.n:
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allvars = []
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allvars.append(f)
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allvars.append(self.classes[-1] + "_" + f)
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vars = [[ allvars[0], allvars[1] ]]
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if len(self.classes) > 1 and self.classes[-2] is not None:
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allvars.append(self.classes[-2] + "_" + f)
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vars = []
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vars.append([allvars[2], allvars[1]])
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vars.append([allvars[0], allvars[2]])
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for (var, calledvar) in vars:
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if bb.data.getVar(var, data) and not bb.data.getVarFlag(var, 'export_func', data):
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continue
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if bb.data.getVar(var, data):
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bb.data.setVarFlag(var, 'python', None, data)
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bb.data.setVarFlag(var, 'func', None, data)
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for flag in [ "func", "python" ]:
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if bb.data.getVarFlag(calledvar, flag, data):
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bb.data.setVarFlag(var, flag, bb.data.getVarFlag(calledvar, flag, data), data)
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for flag in [ "dirs" ]:
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if bb.data.getVarFlag(var, flag, data):
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bb.data.setVarFlag(calledvar, flag, bb.data.getVarFlag(var, flag, data), data)
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if bb.data.getVarFlag(calledvar, "python", data):
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bb.data.setVar(var, "\tbb.build.exec_func('" + calledvar + "', d)\n", data)
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else:
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bb.data.setVar(var, "\t" + calledvar + "\n", data)
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bb.data.setVarFlag(var, 'export_func', '1', data)
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class AddTaskNode(AstNode):
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def __init__(self, func, before, after):
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self.func = func
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self.before = before
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self.after = after
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def eval(self, data):
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var = self.func
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if self.func[:3] != "do_":
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var = "do_" + self.func
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bb.data.setVarFlag(var, "task", 1, data)
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bbtasks = bb.data.getVar('__BBTASKS', data) or []
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if not var in bbtasks:
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bbtasks.append(var)
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bb.data.setVar('__BBTASKS', bbtasks, data)
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existing = bb.data.getVarFlag(var, "deps", data) or []
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if self.after is not None:
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# set up deps for function
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for entry in self.after.split():
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if entry not in existing:
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existing.append(entry)
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bb.data.setVarFlag(var, "deps", existing, data)
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if self.before is not None:
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# set up things that depend on this func
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for entry in self.before.split():
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existing = bb.data.getVarFlag(entry, "deps", data) or []
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if var not in existing:
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bb.data.setVarFlag(entry, "deps", [var] + existing, data)
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class BBHandlerNode(AstNode):
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def __init__(self, fns):
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self.hs = __word__.findall(fns)
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def eval(self, data):
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bbhands = bb.data.getVar('__BBHANDLERS', data) or []
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for h in self.hs:
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bbhands.append(h)
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bb.data.setVarFlag(h, "handler", 1, data)
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bb.data.setVar('__BBHANDLERS', bbhands, data)
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class InheritNode(AstNode):
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def __init__(self, files):
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self.n = __word__.findall(files)
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def eval(self, data):
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bb.parse.BBHandler.inherit(self.n, data)
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def handleInclude(statements, m, fn, lineno, force):
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statements.append(IncludeNode(m.group(1), fn, lineno, force))
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def handleExport(statements, m):
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statements.append(ExportNode(m.group(1)))
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def handleData(statements, groupd):
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statements.append(DataNode(groupd))
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def handleMethod(statements, func_name, lineno, fn, body):
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statements.append(MethodNode(func_name, body, lineno, fn))
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def handlePythonMethod(statements, root, body, fn):
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statements.append(PythonMethodNode(root, body, fn))
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def handleMethodFlags(statements, key, m):
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statements.append(MethodFlagsNode(key, m))
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def handleExportFuncs(statements, m, classes):
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statements.append(ExportFuncsNode(m.group(1), classes))
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def handleAddTask(statements, m):
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func = m.group("func")
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before = m.group("before")
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after = m.group("after")
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if func is None:
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return
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statements.append(AddTaskNode(func, before, after))
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def handleBBHandlers(statements, m):
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statements.append(BBHandlerNode(m.group(1)))
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def handleInherit(statements, m):
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files = m.group(1)
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n = __word__.findall(files)
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statements.append(InheritNode(m.group(1)))
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def finalize(fn, d):
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for lazykey in bb.data.getVar("__lazy_assigned", d) or ():
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if bb.data.getVar(lazykey, d) is None:
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val = bb.data.getVarFlag(lazykey, "defaultval", d)
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bb.data.setVar(lazykey, val, d)
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bb.data.expandKeys(d)
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bb.data.update_data(d)
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code = []
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for funcname in bb.data.getVar("__BBANONFUNCS", d) or []:
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code.append("%s(d)" % funcname)
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bb.utils.simple_exec("\n".join(code), {"d": d})
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bb.data.update_data(d)
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all_handlers = {}
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for var in bb.data.getVar('__BBHANDLERS', d) or []:
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# try to add the handler
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handler = bb.data.getVar(var, d)
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bb.event.register(var, handler)
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tasklist = bb.data.getVar('__BBTASKS', d) or []
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bb.build.add_tasks(tasklist, d)
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bb.event.fire(bb.event.RecipeParsed(fn), d)
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def _create_variants(datastores, names, function):
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def create_variant(name, orig_d, arg = None):
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new_d = bb.data.createCopy(orig_d)
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function(arg or name, new_d)
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datastores[name] = new_d
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for variant, variant_d in datastores.items():
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for name in names:
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if not variant:
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# Based on main recipe
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create_variant(name, variant_d)
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else:
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create_variant("%s-%s" % (variant, name), variant_d, name)
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def _expand_versions(versions):
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def expand_one(version, start, end):
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for i in xrange(start, end + 1):
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ver = _bbversions_re.sub(str(i), version, 1)
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yield ver
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versions = iter(versions)
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while True:
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try:
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version = versions.next()
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except StopIteration:
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break
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range_ver = _bbversions_re.search(version)
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if not range_ver:
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yield version
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else:
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newversions = expand_one(version, int(range_ver.group("from")),
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int(range_ver.group("to")))
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versions = chain(newversions, versions)
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def multi_finalize(fn, d):
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safe_d = d
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d = bb.data.createCopy(safe_d)
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try:
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finalize(fn, d)
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except bb.parse.SkipPackage:
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bb.data.setVar("__SKIPPED", True, d)
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datastores = {"": safe_d}
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versions = (d.getVar("BBVERSIONS", True) or "").split()
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if versions:
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pv = orig_pv = d.getVar("PV", True)
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baseversions = {}
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def verfunc(ver, d, pv_d = None):
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if pv_d is None:
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pv_d = d
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overrides = d.getVar("OVERRIDES", True).split(":")
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pv_d.setVar("PV", ver)
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overrides.append(ver)
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bpv = baseversions.get(ver) or orig_pv
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pv_d.setVar("BPV", bpv)
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overrides.append(bpv)
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d.setVar("OVERRIDES", ":".join(overrides))
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versions = list(_expand_versions(versions))
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for pos, version in enumerate(list(versions)):
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try:
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pv, bpv = version.split(":", 2)
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except ValueError:
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pass
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else:
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versions[pos] = pv
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baseversions[pv] = bpv
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if pv in versions and not baseversions.get(pv):
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versions.remove(pv)
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else:
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pv = versions.pop()
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# This is necessary because our existing main datastore
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# has already been finalized with the old PV, we need one
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# that's been finalized with the new PV.
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d = bb.data.createCopy(safe_d)
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verfunc(pv, d, safe_d)
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try:
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finalize(fn, d)
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except bb.parse.SkipPackage:
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bb.data.setVar("__SKIPPED", True, d)
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_create_variants(datastores, versions, verfunc)
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extended = d.getVar("BBCLASSEXTEND", True) or ""
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if extended:
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pn = d.getVar("PN", True)
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def extendfunc(name, d):
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d.setVar("PN", "%s-%s" % (pn, name))
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bb.parse.BBHandler.inherit([name], d)
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safe_d.setVar("BBCLASSEXTEND", extended)
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_create_variants(datastores, extended.split(), extendfunc)
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for variant, variant_d in datastores.items():
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if variant:
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try:
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finalize(fn, variant_d)
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except bb.parse.SkipPackage:
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bb.data.setVar("__SKIPPED", True, variant_d)
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if len(datastores) > 1:
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variants = filter(None, datastores.keys())
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safe_d.setVar("__VARIANTS", " ".join(variants))
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datastores[""] = d
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return datastores
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