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#!/usr/bin/env python
# ex:ts=4:sw=4:sts=4:et
# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
"""class for handling .bb files
Reads a .bb file and obtains its metadata
Copyright (C) 2003, 2004 Chris Larson
Copyright (C) 2003, 2004 Phil Blundell
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU 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 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."""
import re, bb, os, sys, time
import bb.fetch, bb.build, bb.utils
from bb import data, fetch, methodpool
from ConfHandler import include, localpath, obtain, init
from bb.parse import ParseError
__func_start_regexp__ = re.compile( r"(((?P<py>python)|(?P<fr>fakeroot))\s*)*(?P<func>[\w\.\-\+\{\}\$]+)?\s*\(\s*\)\s*{$" )
__inherit_regexp__ = re.compile( r"inherit\s+(.+)" )
__export_func_regexp__ = re.compile( r"EXPORT_FUNCTIONS\s+(.+)" )
__addtask_regexp__ = re.compile("addtask\s+(?P<func>\w+)\s*((before\s*(?P<before>((.*(?=after))|(.*))))|(after\s*(?P<after>((.*(?=before))|(.*)))))*")
__addhandler_regexp__ = re.compile( r"addhandler\s+(.+)" )
__def_regexp__ = re.compile( r"def\s+(\w+).*:" )
__python_func_regexp__ = re.compile( r"(\s+.*)|(^$)" )
__word__ = re.compile(r"\S+")
__infunc__ = ""
__inpython__ = False
__body__ = []
__bbpath_found__ = 0
__classname__ = ""
classes = [ None, ]
# We need to indicate EOF to the feeder. This code is so messy that
# factoring it out to a close_parse_file method is out of question.
# We will use the IN_PYTHON_EOF as an indicator to just close the method
#
# The two parts using it are tightly integrated anyway
IN_PYTHON_EOF = -9999999999999
__parsed_methods__ = methodpool.get_parsed_dict()
def supports(fn, d):
localfn = localpath(fn, d)
return localfn[-3:] == ".bb" or localfn[-8:] == ".bbclass" or localfn[-4:] == ".inc"
def inherit(files, d):
__inherit_cache = data.getVar('__inherit_cache', d) or ""
fn = ""
lineno = 0
for f in files:
file = data.expand(f, d)
if file[0] != "/" and file[-8:] != ".bbclass":
file = os.path.join('classes', '%s.bbclass' % file)
if not file in __inherit_cache.split():
bb.msg.debug(2, bb.msg.domain.Parsing, "BB %s:%d: inheriting %s" % (fn, lineno, file))
__inherit_cache += " %s" % file
include(fn, file, d, "inherit")
data.setVar('__inherit_cache', __inherit_cache, d)
def handle(fn, d, include = 0):
global __func_start_regexp__, __inherit_regexp__, __export_func_regexp__, __addtask_regexp__, __addhandler_regexp__, __infunc__, __body__, __bbpath_found__, __residue__
__body__ = []
__bbpath_found__ = 0
__infunc__ = ""
__classname__ = ""
__residue__ = []
if include == 0:
bb.msg.debug(2, bb.msg.domain.Parsing, "BB " + fn + ": handle(data)")
else:
bb.msg.debug(2, bb.msg.domain.Parsing, "BB " + fn + ": handle(data, include)")
(root, ext) = os.path.splitext(os.path.basename(fn))
base_name = "%s%s" % (root,ext)
init(d)
if ext == ".bbclass":
__classname__ = root
classes.append(__classname__)
if include != 0:
oldfile = data.getVar('FILE', d)
else:
oldfile = None
fn = obtain(fn, d)
bbpath = (data.getVar('BBPATH', d, 1) or '').split(':')
if not os.path.isabs(fn):
f = None
for p in bbpath:
p = data.expand(p, d)
j = os.path.join(p, fn)
if os.access(j, os.R_OK):
abs_fn = j
f = open(j, 'r')
break
if f is None:
raise IOError("file not found")
else:
f = open(fn,'r')
abs_fn = fn
if ext != ".bbclass":
bbpath.insert(0, os.path.dirname(abs_fn))
data.setVar('BBPATH', ":".join(bbpath), d)
if include:
bb.parse.mark_dependency(d, abs_fn)
if ext != ".bbclass":
data.setVar('FILE', fn, d)
i = (data.getVar("INHERIT", d, 1) or "").split()
if not "base" in i and __classname__ != "base":
i[0:0] = ["base"]
inherit(i, d)
lineno = 0
while 1:
lineno = lineno + 1
s = f.readline()
if not s: break
s = s.rstrip()
feeder(lineno, s, fn, base_name, d)
if __inpython__:
# add a blank line to close out any python definition
feeder(IN_PYTHON_EOF, "", fn, base_name, d)
if ext == ".bbclass":
classes.remove(__classname__)
else:
if include == 0:
data.expandKeys(d)
data.update_data(d)
anonqueue = data.getVar("__anonqueue", d, 1) or []
for anon in anonqueue:
data.setVar("__anonfunc", anon["content"], d)
data.setVarFlags("__anonfunc", anon["flags"], d)
from bb import build
try:
t = data.getVar('T', d)
data.setVar('T', '${TMPDIR}/', d)
build.exec_func("__anonfunc", d)
data.delVar('T', d)
if t:
data.setVar('T', t, d)
except Exception, e:
bb.msg.debug(1, bb.msg.domain.Parsing, "executing anonymous function: %s" % e)
raise
data.delVar("__anonqueue", d)
data.delVar("__anonfunc", d)
set_additional_vars(fn, d, include)
data.update_data(d)
all_handlers = {}
for var in data.keys(d):
# try to add the handler
# if we added it remember the choiche
if data.getVarFlag(var, 'handler', d):
handler = data.getVar(var,d)
if bb.event.register(var,handler) == bb.event.Registered:
all_handlers[var] = handler
continue
if not data.getVarFlag(var, 'task', d):
continue
deps = data.getVarFlag(var, 'deps', d) or []
postdeps = data.getVarFlag(var, 'postdeps', d) or []
bb.build.add_task(var, deps, d)
for p in postdeps:
pdeps = data.getVarFlag(p, 'deps', d) or []
pdeps.append(var)
data.setVarFlag(p, 'deps', pdeps, d)
bb.build.add_task(p, pdeps, d)
# now add the handlers
if not len(all_handlers) == 0:
data.setVar('__all_handlers__', all_handlers, d)
bbpath.pop(0)
if oldfile:
bb.data.setVar("FILE", oldfile, d)
# we have parsed the bb class now
if ext == ".bbclass" or ext == ".inc":
__parsed_methods__[base_name] = 1
return d
def feeder(lineno, s, fn, root, d):
global __func_start_regexp__, __inherit_regexp__, __export_func_regexp__, __addtask_regexp__, __addhandler_regexp__, __def_regexp__, __python_func_regexp__, __inpython__,__infunc__, __body__, __bbpath_found__, classes, bb, __residue__
if __infunc__:
if s == '}':
__body__.append('')
data.setVar(__infunc__, '\n'.join(__body__), d)
data.setVarFlag(__infunc__, "func", 1, d)
if __infunc__ == "__anonymous":
anonqueue = bb.data.getVar("__anonqueue", d) or []
anonitem = {}
anonitem["content"] = bb.data.getVar("__anonymous", d)
anonitem["flags"] = bb.data.getVarFlags("__anonymous", d)
anonqueue.append(anonitem)
bb.data.setVar("__anonqueue", anonqueue, d)
bb.data.delVarFlags("__anonymous", d)
bb.data.delVar("__anonymous", d)
__infunc__ = ""
__body__ = []
else:
__body__.append(s)
return
if __inpython__:
m = __python_func_regexp__.match(s)
if m and lineno != IN_PYTHON_EOF:
__body__.append(s)
return
else:
# Note we will add root to parsedmethods after having parse
# 'this' file. This means we will not parse methods from
# bb classes twice
if not root in __parsed_methods__:
text = '\n'.join(__body__)
methodpool.insert_method( root, text, fn )
funcs = data.getVar('__functions__', d) or {}
if not funcs.has_key( root ):
funcs[root] = text
else:
funcs[root] = "%s\n%s" % (funcs[root], text)
data.setVar('__functions__', funcs, d)
__body__ = []
__inpython__ = False
if lineno == IN_PYTHON_EOF:
return
# fall through
if s == '' or s[0] == '#': return # skip comments and empty lines
if s[-1] == '\\':
__residue__.append(s[:-1])
return
s = "".join(__residue__) + s
__residue__ = []
m = __func_start_regexp__.match(s)
if m:
__infunc__ = m.group("func") or "__anonymous"
key = __infunc__
if data.getVar(key, d):
# clean up old version of this piece of metadata, as its
# flags could cause problems
data.setVarFlag(key, 'python', None, d)
data.setVarFlag(key, 'fakeroot', None, d)
if m.group("py") is not None:
data.setVarFlag(key, "python", "1", d)
else:
data.delVarFlag(key, "python", d)
if m.group("fr") is not None:
data.setVarFlag(key, "fakeroot", "1", d)
else:
data.delVarFlag(key, "fakeroot", d)
return
m = __def_regexp__.match(s)
if m:
__body__.append(s)
__inpython__ = True
return
m = __export_func_regexp__.match(s)
if m:
fns = m.group(1)
n = __word__.findall(fns)
for f in n:
allvars = []
allvars.append(f)
allvars.append(classes[-1] + "_" + f)
vars = [[ allvars[0], allvars[1] ]]
if len(classes) > 1 and classes[-2] is not None:
allvars.append(classes[-2] + "_" + f)
vars = []
vars.append([allvars[2], allvars[1]])
vars.append([allvars[0], allvars[2]])
for (var, calledvar) in vars:
if data.getVar(var, d) and not data.getVarFlag(var, 'export_func', d):
continue
if data.getVar(var, d):
data.setVarFlag(var, 'python', None, d)
data.setVarFlag(var, 'func', None, d)
for flag in [ "func", "python" ]:
if data.getVarFlag(calledvar, flag, d):
data.setVarFlag(var, flag, data.getVarFlag(calledvar, flag, d), d)
for flag in [ "dirs" ]:
if data.getVarFlag(var, flag, d):
data.setVarFlag(calledvar, flag, data.getVarFlag(var, flag, d), d)
if data.getVarFlag(calledvar, "python", d):
data.setVar(var, "\tbb.build.exec_func('" + calledvar + "', d)\n", d)
else:
data.setVar(var, "\t" + calledvar + "\n", d)
data.setVarFlag(var, 'export_func', '1', d)
return
m = __addtask_regexp__.match(s)
if m:
func = m.group("func")
before = m.group("before")
after = m.group("after")
if func is None:
return
var = "do_" + func
data.setVarFlag(var, "task", 1, d)
if after is not None:
# set up deps for function
data.setVarFlag(var, "deps", after.split(), d)
if before is not None:
# set up things that depend on this func
data.setVarFlag(var, "postdeps", before.split(), d)
return
m = __addhandler_regexp__.match(s)
if m:
fns = m.group(1)
hs = __word__.findall(fns)
for h in hs:
data.setVarFlag(h, "handler", 1, d)
return
m = __inherit_regexp__.match(s)
if m:
files = m.group(1)
n = __word__.findall(files)
inherit(n, d)
return
from bb.parse import ConfHandler
return ConfHandler.feeder(lineno, s, fn, d)
__pkgsplit_cache__={}
def vars_from_file(mypkg, d):
if not mypkg:
return (None, None, None)
if mypkg in __pkgsplit_cache__:
return __pkgsplit_cache__[mypkg]
myfile = os.path.splitext(os.path.basename(mypkg))
parts = myfile[0].split('_')
__pkgsplit_cache__[mypkg] = parts
exp = 3 - len(parts)
tmplist = []
while exp != 0:
exp -= 1
tmplist.append(None)
parts.extend(tmplist)
return parts
def set_additional_vars(file, d, include):
"""Deduce rest of variables, e.g. ${A} out of ${SRC_URI}"""
bb.msg.debug(2, bb.msg.domain.Parsing, "BB %s: set_additional_vars" % file)
src_uri = data.getVar('SRC_URI', d)
if not src_uri:
return
src_uri = data.expand(src_uri, d)
a = data.getVar('A', d)
if a:
a = data.expand(a, d).split()
else:
a = []
from bb import fetch
try:
fetch.init(src_uri.split(), d)
except fetch.NoMethodError:
pass
except bb.MalformedUrl,e:
raise ParseError("Unable to generate local paths for SRC_URI due to malformed uri: %s" % e)
a += fetch.localpaths(d)
del fetch
data.setVar('A', " ".join(a), d)
# Add us to the handlers list
from bb.parse import handlers
handlers.append({'supports': supports, 'handle': handle, 'init': init})
del handlers
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