255 lines
8.3 KiB
Python
255 lines
8.3 KiB
Python
#!/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.
|
|
|
|
|
|
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 = {}
|
|
|
|
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")
|
|
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:
|
|
with open(absolute_filename, 'r') as f:
|
|
statements = ast.StatementGroup()
|
|
|
|
lineno = 0
|
|
while True:
|
|
lineno = lineno + 1
|
|
s = f.readline()
|
|
if not s: break
|
|
s = s.rstrip()
|
|
feeder(lineno, s, filename, base_name, statements)
|
|
|
|
if __inpython__:
|
|
# add a blank line to close out any python definition
|
|
feeder(lineno, "", filename, base_name, statements, eof=True)
|
|
|
|
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:
|
|
d.setVar("__SKIPPED", True)
|
|
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, eof=False):
|
|
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__[3], __infunc__[4])
|
|
__infunc__ = []
|
|
__body__ = []
|
|
else:
|
|
__body__.append(s)
|
|
return
|
|
|
|
if __inpython__:
|
|
m = __python_func_regexp__.match(s)
|
|
if m and not eof:
|
|
__body__.append(s)
|
|
return
|
|
else:
|
|
ast.handlePythonMethod(statements, fn, lineno, __inpython__,
|
|
root, __body__)
|
|
__body__ = []
|
|
__inpython__ = False
|
|
|
|
if 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, m.group("py") is not None, m.group("fr") is not None]
|
|
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
|