379 lines
12 KiB
Python
379 lines
12 KiB
Python
#!/usr/bin/env python
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# 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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"""class for handling .bb files
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Reads a .bb file and obtains its metadata
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Copyright (C) 2003, 2004 Chris Larson
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Copyright (C) 2003, 2004 Phil Blundell
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This program is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free Software
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Foundation; either version 2 of the License, or (at your option) any later
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version.
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This program is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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Place, Suite 330, Boston, MA 02111-1307 USA."""
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import re, bb, os, sys
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import bb.fetch, bb.build
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from bb import debug, data, fetch, fatal
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from ConfHandler import include, localpath, obtain, init
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from bb.parse import ParseError
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__func_start_regexp__ = re.compile( r"(((?P<py>python)|(?P<fr>fakeroot))\s*)*(?P<func>[\w\.\-\+\{\}\$]+)?\s*\(\s*\)\s*{$" )
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__inherit_regexp__ = re.compile( r"inherit\s+(.+)" )
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__export_func_regexp__ = re.compile( r"EXPORT_FUNCTIONS\s+(.+)" )
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__addtask_regexp__ = re.compile("addtask\s+(?P<func>\w+)\s*((before\s*(?P<before>((.*(?=after))|(.*))))|(after\s*(?P<after>((.*(?=before))|(.*)))))*")
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__addhandler_regexp__ = re.compile( r"addhandler\s+(.+)" )
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__def_regexp__ = re.compile( r"def\s+(\w+).*:" )
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__python_func_regexp__ = re.compile( r"(\s+.*)|(^$)" )
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__word__ = re.compile(r"\S+")
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__infunc__ = ""
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__inpython__ = False
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__body__ = []
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__bbpath_found__ = 0
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__classname__ = ""
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classes = [ None, ]
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def supports(fn, d):
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localfn = localpath(fn, d)
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return localfn[-3:] == ".bb" or localfn[-8:] == ".bbclass" or localfn[-4:] == ".inc"
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def inherit(files, d):
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__inherit_cache = data.getVar('__inherit_cache', d) or ""
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fn = ""
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lineno = 0
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for f in files:
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file = data.expand(f, d)
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if file[0] != "/" and file[-8:] != ".bbclass":
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file = os.path.join('classes', '%s.bbclass' % file)
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if not file in __inherit_cache.split():
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debug(2, "BB %s:%d: inheriting %s" % (fn, lineno, file))
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__inherit_cache += " %s" % file
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include(fn, file, d)
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data.setVar('__inherit_cache', __inherit_cache, d)
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def handle(fn, d, include = 0):
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global __func_start_regexp__, __inherit_regexp__, __export_func_regexp__, __addtask_regexp__, __addhandler_regexp__, __infunc__, __body__, __bbpath_found__, __residue__
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__body__ = []
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__bbpath_found__ = 0
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__infunc__ = ""
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__classname__ = ""
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__residue__ = []
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if include == 0:
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debug(2, "BB " + fn + ": handle(data)")
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else:
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debug(2, "BB " + fn + ": handle(data, include)")
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(root, ext) = os.path.splitext(os.path.basename(fn))
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init(d)
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if ext == ".bbclass":
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__classname__ = root
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classes.append(__classname__)
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if include != 0:
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oldfile = data.getVar('FILE', d)
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else:
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oldfile = None
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fn = obtain(fn, d)
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bbpath = (data.getVar('BBPATH', d, 1) or '').split(':')
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if not os.path.isabs(fn):
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f = None
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for p in bbpath:
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p = data.expand(p, d)
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j = os.path.join(p, fn)
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if os.access(j, os.R_OK):
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abs_fn = j
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f = open(j, 'r')
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break
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if f is None:
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raise IOError("file not found")
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else:
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f = open(fn,'r')
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abs_fn = fn
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if ext != ".bbclass":
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bbpath.insert(0, os.path.dirname(abs_fn))
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data.setVar('BBPATH', ":".join(bbpath), d)
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if include:
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bb.parse.mark_dependency(d, abs_fn)
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if ext != ".bbclass":
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data.setVar('FILE', fn, d)
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i = (data.getVar("INHERIT", d, 1) or "").split()
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if not "base" in i and __classname__ != "base":
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i[0:0] = ["base"]
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inherit(i, d)
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lineno = 0
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while 1:
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lineno = lineno + 1
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s = f.readline()
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if not s: break
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s = s.rstrip()
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feeder(lineno, s, fn, d)
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if __inpython__:
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# add a blank line to close out any python definition
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feeder(lineno + 1, "", fn, d)
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if ext == ".bbclass":
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classes.remove(__classname__)
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else:
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if include == 0:
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data.expandKeys(d)
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data.update_data(d)
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anonqueue = data.getVar("__anonqueue", d, 1) or []
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for anon in anonqueue:
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data.setVar("__anonfunc", anon["content"], d)
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data.setVarFlags("__anonfunc", anon["flags"], d)
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from bb import build
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try:
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t = data.getVar('T', d)
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data.setVar('T', '${TMPDIR}/', d)
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build.exec_func("__anonfunc", d)
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data.delVar('T', d)
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if t:
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data.setVar('T', t, d)
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except Exception, e:
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bb.debug(1, "executing anonymous function: %s" % e)
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raise
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data.delVar("__anonqueue", d)
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data.delVar("__anonfunc", d)
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set_additional_vars(fn, d, include)
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data.update_data(d)
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for var in data.keys(d):
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if data.getVarFlag(var, 'handler', d):
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bb.event.register(data.getVar(var, d))
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continue
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if not data.getVarFlag(var, 'task', d):
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continue
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deps = data.getVarFlag(var, 'deps', d) or []
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postdeps = data.getVarFlag(var, 'postdeps', d) or []
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bb.build.add_task(var, deps, d)
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for p in postdeps:
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pdeps = data.getVarFlag(p, 'deps', d) or []
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pdeps.append(var)
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data.setVarFlag(p, 'deps', pdeps, d)
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bb.build.add_task(p, pdeps, d)
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bbpath.pop(0)
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if oldfile:
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bb.data.setVar("FILE", oldfile, d)
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return d
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def feeder(lineno, s, fn, d):
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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__
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if __infunc__:
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if s == '}':
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__body__.append('')
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data.setVar(__infunc__, '\n'.join(__body__), d)
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data.setVarFlag(__infunc__, "func", 1, d)
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if __infunc__ == "__anonymous":
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anonqueue = bb.data.getVar("__anonqueue", d) or []
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anonitem = {}
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anonitem["content"] = bb.data.getVar("__anonymous", d)
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anonitem["flags"] = bb.data.getVarFlags("__anonymous", d)
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anonqueue.append(anonitem)
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bb.data.setVar("__anonqueue", anonqueue, d)
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bb.data.delVarFlags("__anonymous", d)
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bb.data.delVar("__anonymous", d)
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__infunc__ = ""
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__body__ = []
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else:
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__body__.append(s)
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return
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if __inpython__:
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m = __python_func_regexp__.match(s)
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if m:
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__body__.append(s)
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return
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else:
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text = '\n'.join(__body__)
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comp = compile(text, "<bb>", "exec")
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exec comp in __builtins__
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__body__ = []
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__inpython__ = False
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funcs = data.getVar('__functions__', d) or ""
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data.setVar('__functions__', "%s\n%s" % (funcs, text), d)
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# fall through
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if s == '' or s[0] == '#': return # skip comments and empty lines
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if s[-1] == '\\':
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__residue__.append(s[:-1])
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return
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s = "".join(__residue__) + s
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__residue__ = []
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m = __func_start_regexp__.match(s)
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if m:
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__infunc__ = m.group("func") or "__anonymous"
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key = __infunc__
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if data.getVar(key, d):
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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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data.setVarFlag(key, 'python', None, d)
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data.setVarFlag(key, 'fakeroot', None, d)
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if m.group("py") is not None:
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data.setVarFlag(key, "python", "1", d)
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else:
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data.delVarFlag(key, "python", d)
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if m.group("fr") is not None:
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data.setVarFlag(key, "fakeroot", "1", d)
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else:
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data.delVarFlag(key, "fakeroot", d)
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return
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m = __def_regexp__.match(s)
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if m:
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__body__.append(s)
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__inpython__ = True
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return
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m = __export_func_regexp__.match(s)
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if m:
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fns = m.group(1)
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n = __word__.findall(fns)
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for f in n:
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allvars = []
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allvars.append(f)
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allvars.append(classes[-1] + "_" + f)
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vars = [[ allvars[0], allvars[1] ]]
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if len(classes) > 1 and classes[-2] is not None:
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allvars.append(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 data.getVar(var, d) and not data.getVarFlag(var, 'export_func', d):
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continue
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if data.getVar(var, d):
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data.setVarFlag(var, 'python', None, d)
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data.setVarFlag(var, 'func', None, d)
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for flag in [ "func", "python" ]:
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if data.getVarFlag(calledvar, flag, d):
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data.setVarFlag(var, flag, data.getVarFlag(calledvar, flag, d), d)
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for flag in [ "dirs" ]:
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if data.getVarFlag(var, flag, d):
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data.setVarFlag(calledvar, flag, data.getVarFlag(var, flag, d), d)
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if data.getVarFlag(calledvar, "python", d):
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data.setVar(var, "\tbb.build.exec_func('" + calledvar + "', d)\n", d)
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else:
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data.setVar(var, "\t" + calledvar + "\n", d)
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data.setVarFlag(var, 'export_func', '1', d)
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return
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m = __addtask_regexp__.match(s)
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if 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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var = "do_" + func
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data.setVarFlag(var, "task", 1, d)
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if after is not None:
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# set up deps for function
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data.setVarFlag(var, "deps", after.split(), d)
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if before is not None:
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# set up things that depend on this func
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data.setVarFlag(var, "postdeps", before.split(), d)
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return
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m = __addhandler_regexp__.match(s)
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if m:
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fns = m.group(1)
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hs = __word__.findall(fns)
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for h in hs:
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data.setVarFlag(h, "handler", 1, d)
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return
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m = __inherit_regexp__.match(s)
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if m:
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files = m.group(1)
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n = __word__.findall(files)
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inherit(n, d)
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return
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from bb.parse import ConfHandler
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return ConfHandler.feeder(lineno, s, fn, d)
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__pkgsplit_cache__={}
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def vars_from_file(mypkg, d):
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if not mypkg:
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return (None, None, None)
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if mypkg in __pkgsplit_cache__:
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return __pkgsplit_cache__[mypkg]
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myfile = os.path.splitext(os.path.basename(mypkg))
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parts = myfile[0].split('_')
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__pkgsplit_cache__[mypkg] = parts
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exp = 3 - len(parts)
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tmplist = []
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while exp != 0:
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exp -= 1
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tmplist.append(None)
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parts.extend(tmplist)
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return parts
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def set_additional_vars(file, d, include):
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"""Deduce rest of variables, e.g. ${A} out of ${SRC_URI}"""
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debug(2,"BB %s: set_additional_vars" % file)
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src_uri = data.getVar('SRC_URI', d)
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if not src_uri:
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return
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src_uri = data.expand(src_uri, d)
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a = data.getVar('A', d)
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if a:
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a = data.expand(a, d).split()
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else:
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a = []
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from bb import fetch
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try:
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fetch.init(src_uri.split(), d)
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except fetch.NoMethodError:
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pass
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except bb.MalformedUrl,e:
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raise ParseError("Unable to generate local paths for SRC_URI due to malformed uri: %s" % e)
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a += fetch.localpaths(d)
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del fetch
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data.setVar('A', " ".join(a), d)
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# Add us to the handlers list
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from bb.parse import handlers
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handlers.append({'supports': supports, 'handle': handle, 'init': init})
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del handlers
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