Squashed 'yocto-poky/' content from commit ea562de
git-subtree-dir: yocto-poky
git-subtree-split: ea562de57590c966cd5a75fda8defecd397e6436
diff --git a/bitbake/lib/bb/parse/parse_py/BBHandler.py b/bitbake/lib/bb/parse/parse_py/BBHandler.py
new file mode 100644
index 0000000..ec097ba
--- /dev/null
+++ b/bitbake/lib/bb/parse/parse_py/BBHandler.py
@@ -0,0 +1,265 @@
+#!/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 version 2 as
+# published by the Free Software Foundation.
+#
+# 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.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+from __future__ import absolute_import
+import re, bb, os
+import logging
+import bb.build, bb.utils
+from bb import data
+
+from . import ConfHandler
+from .. import resolve_file, ast, logger, ParseError
+from .ConfHandler import include, init
+
+# For compatibility
+bb.deprecate_import(__name__, "bb.parse", ["vars_from_file"])
+
+__func_start_regexp__ = re.compile( r"(((?P<py>python)|(?P<fr>fakeroot))\s*)*(?P<func>[\w\.\-\+\{\}\$]+)?\s*\(\s*\)\s*{$" )
+__inherit_regexp__ = re.compile( r"inherit\s+(.+)" )
+__export_func_regexp__ = re.compile( r"EXPORT_FUNCTIONS\s+(.+)" )
+__addtask_regexp__ = re.compile("addtask\s+(?P<func>\w+)\s*((before\s*(?P<before>((.*(?=after))|(.*))))|(after\s*(?P<after>((.*(?=before))|(.*)))))*")
+__deltask_regexp__ = re.compile("deltask\s+(?P<func>\w+)")
+__addhandler_regexp__ = re.compile( r"addhandler\s+(.+)" )
+__def_regexp__ = re.compile( r"def\s+(\w+).*:" )
+__python_func_regexp__ = re.compile( r"(\s+.*)|(^$)" )
+
+
+__infunc__ = []
+__inpython__ = False
+__body__ = []
+__classname__ = ""
+
+cached_statements = {}
+
+# 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
+
+
+
+def supports(fn, d):
+ """Return True if fn has a supported extension"""
+ return os.path.splitext(fn)[-1] in [".bb", ".bbclass", ".inc"]
+
+def inherit(files, fn, lineno, d):
+ __inherit_cache = d.getVar('__inherit_cache', False) or []
+ files = d.expand(files).split()
+ for file in files:
+ if not os.path.isabs(file) and not file.endswith(".bbclass"):
+ file = os.path.join('classes', '%s.bbclass' % file)
+
+ if not os.path.isabs(file):
+ bbpath = d.getVar("BBPATH", True)
+ abs_fn, attempts = bb.utils.which(bbpath, file, history=True)
+ for af in attempts:
+ if af != abs_fn:
+ bb.parse.mark_dependency(d, af)
+ if abs_fn:
+ file = abs_fn
+
+ if not file in __inherit_cache:
+ logger.debug(1, "Inheriting %s (from %s:%d)" % (file, fn, lineno))
+ __inherit_cache.append( file )
+ d.setVar('__inherit_cache', __inherit_cache)
+ include(fn, file, lineno, d, "inherit")
+ __inherit_cache = d.getVar('__inherit_cache', False) or []
+
+def get_statements(filename, absolute_filename, base_name):
+ global cached_statements
+
+ try:
+ return cached_statements[absolute_filename]
+ except KeyError:
+ file = open(absolute_filename, 'r')
+ statements = ast.StatementGroup()
+
+ lineno = 0
+ while True:
+ lineno = lineno + 1
+ s = file.readline()
+ if not s: break
+ s = s.rstrip()
+ feeder(lineno, s, filename, base_name, statements)
+ file.close()
+ if __inpython__:
+ # add a blank line to close out any python definition
+ feeder(IN_PYTHON_EOF, "", filename, base_name, statements)
+
+ if filename.endswith(".bbclass") or filename.endswith(".inc"):
+ cached_statements[absolute_filename] = statements
+ return statements
+
+def handle(fn, d, include):
+ global __func_start_regexp__, __inherit_regexp__, __export_func_regexp__, __addtask_regexp__, __addhandler_regexp__, __infunc__, __body__, __residue__, __classname__
+ __body__ = []
+ __infunc__ = []
+ __classname__ = ""
+ __residue__ = []
+
+ base_name = os.path.basename(fn)
+ (root, ext) = os.path.splitext(base_name)
+ init(d)
+
+ if ext == ".bbclass":
+ __classname__ = root
+ __inherit_cache = d.getVar('__inherit_cache', False) or []
+ if not fn in __inherit_cache:
+ __inherit_cache.append(fn)
+ d.setVar('__inherit_cache', __inherit_cache)
+
+ if include != 0:
+ oldfile = d.getVar('FILE', False)
+ else:
+ oldfile = None
+
+ abs_fn = resolve_file(fn, d)
+
+ if include:
+ bb.parse.mark_dependency(d, abs_fn)
+
+ # actual loading
+ statements = get_statements(fn, abs_fn, base_name)
+
+ # DONE WITH PARSING... time to evaluate
+ if ext != ".bbclass" and abs_fn != oldfile:
+ d.setVar('FILE', abs_fn)
+
+ try:
+ statements.eval(d)
+ except bb.parse.SkipRecipe:
+ bb.data.setVar("__SKIPPED", True, d)
+ if include == 0:
+ return { "" : d }
+
+ if __infunc__:
+ raise ParseError("Shell function %s is never closed" % __infunc__[0], __infunc__[1], __infunc__[2])
+ if __residue__:
+ raise ParseError("Leftover unparsed (incomplete?) data %s from %s" % __residue__, fn)
+
+ if ext != ".bbclass" and include == 0:
+ return ast.multi_finalize(fn, d)
+
+ if ext != ".bbclass" and oldfile and abs_fn != oldfile:
+ d.setVar("FILE", oldfile)
+
+ return d
+
+def feeder(lineno, s, fn, root, statements):
+ global __func_start_regexp__, __inherit_regexp__, __export_func_regexp__, __addtask_regexp__, __addhandler_regexp__, __def_regexp__, __python_func_regexp__, __inpython__, __infunc__, __body__, bb, __residue__, __classname__
+ if __infunc__:
+ if s == '}':
+ __body__.append('')
+ ast.handleMethod(statements, fn, lineno, __infunc__[0], __body__)
+ __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:
+ ast.handlePythonMethod(statements, fn, lineno, __inpython__,
+ root, __body__)
+ __body__ = []
+ __inpython__ = False
+
+ if lineno == IN_PYTHON_EOF:
+ return
+
+ if s and s[0] == '#':
+ if len(__residue__) != 0 and __residue__[0][0] != "#":
+ bb.fatal("There is a comment on line %s of file %s (%s) which is in the middle of a multiline expression.\nBitbake used to ignore these but no longer does so, please fix your metadata as errors are likely as a result of this change." % (lineno, fn, s))
+
+ if len(__residue__) != 0 and __residue__[0][0] == "#" and (not s or s[0] != "#"):
+ bb.fatal("There is a confusing multiline, partially commented expression on line %s of file %s (%s).\nPlease clarify whether this is all a comment or should be parsed." % (lineno, fn, s))
+
+ if s and s[-1] == '\\':
+ __residue__.append(s[:-1])
+ return
+
+ s = "".join(__residue__) + s
+ __residue__ = []
+
+ # Skip empty lines
+ if s == '':
+ return
+
+ # Skip comments
+ if s[0] == '#':
+ return
+
+ m = __func_start_regexp__.match(s)
+ if m:
+ __infunc__ = [m.group("func") or "__anonymous", fn, lineno]
+ ast.handleMethodFlags(statements, fn, lineno, __infunc__[0], m)
+ return
+
+ m = __def_regexp__.match(s)
+ if m:
+ __body__.append(s)
+ __inpython__ = m.group(1)
+
+ return
+
+ m = __export_func_regexp__.match(s)
+ if m:
+ ast.handleExportFuncs(statements, fn, lineno, m, __classname__)
+ return
+
+ m = __addtask_regexp__.match(s)
+ if m:
+ ast.handleAddTask(statements, fn, lineno, m)
+ return
+
+ m = __deltask_regexp__.match(s)
+ if m:
+ ast.handleDelTask(statements, fn, lineno, m)
+ return
+
+ m = __addhandler_regexp__.match(s)
+ if m:
+ ast.handleBBHandlers(statements, fn, lineno, m)
+ return
+
+ m = __inherit_regexp__.match(s)
+ if m:
+ ast.handleInherit(statements, fn, lineno, m)
+ return
+
+ return ConfHandler.feeder(lineno, s, fn, statements)
+
+# Add us to the handlers list
+from .. import handlers
+handlers.append({'supports': supports, 'handle': handle, 'init': init})
+del handlers