diff options
Diffstat (limited to 'build/lib/bb/parse/BBHandler.py')
-rw-r--r-- | build/lib/bb/parse/BBHandler.py | 376 |
1 files changed, 376 insertions, 0 deletions
diff --git a/build/lib/bb/parse/BBHandler.py b/build/lib/bb/parse/BBHandler.py new file mode 100644 index 000000000..32f4ce873 --- /dev/null +++ b/build/lib/bb/parse/BBHandler.py @@ -0,0 +1,376 @@ +#!/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 +import bb.fetch, bb.build +from bb import debug, data, fetch, fatal + +from bb.parse.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, ] + +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(): + debug(2, "BB %s:%d: inheriting %s" % (fn, lineno, file)) + __inherit_cache += " %s" % file + include(fn, file, d) + 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: + debug(2, "BB " + fn + ": handle(data)") + else: + debug(2, "BB " + fn + ": handle(data, include)") + + (root, ext) = os.path.splitext(os.path.basename(fn)) + 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 = [] + if not os.path.isabs(fn): + f = None + vbbpath = data.getVar("BBPATH", d) + if vbbpath: + bbpath += vbbpath.split(":") + 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 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, d) + if __inpython__: + # add a blank line to close out any python definition + feeder(lineno + 1, "", fn, 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.debug(1, "executing anonymous function: %s" % e) + raise + data.delVar("__anonqueue", d) + data.delVar("__anonfunc", d) + set_additional_vars(fn, d, include) + data.update_data(d) + + for var in d.keys(): + if data.getVarFlag(var, 'handler', d): + bb.event.register(data.getVar(var, d)) + 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) + if oldfile: + bb.data.setVar("FILE", oldfile, d) + return d + +def feeder(lineno, s, fn, 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: + __body__.append(s) + return + else: + text = '\n'.join(__body__) + comp = compile(text, "<bb>", "exec") + exec comp in __builtins__ + __body__ = [] + __inpython__ = False + funcs = data.getVar('__functions__', d) or "" + data.setVar('__functions__', "%s\n%s" % (funcs, text), d) +# 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}""" + + debug(2,"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()) + 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 |