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"""
BitBake Parsers
File parsers for the BitBake build tools.
"""
# 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.
#
# Based on functions from the base bb module, Copyright 2003 Holger Schurig
handlers = []
import os
import stat
import logging
import bb
import bb.utils
import bb.siggen
logger = logging.getLogger("BitBake.Parsing")
class ParseError(Exception):
"""Exception raised when parsing fails"""
def __init__(self, msg, filename, lineno=0):
self.msg = msg
self.filename = filename
self.lineno = lineno
Exception.__init__(self, msg, filename, lineno)
def __str__(self):
if self.lineno:
return "ParseError at %s:%d: %s" % (self.filename, self.lineno, self.msg)
else:
return "ParseError in %s: %s" % (self.filename, self.msg)
class SkipPackage(Exception):
"""Exception raised to skip this package"""
__mtime_cache = {}
def cached_mtime(f):
if f not in __mtime_cache:
__mtime_cache[f] = os.stat(f)[stat.ST_MTIME]
return __mtime_cache[f]
def cached_mtime_noerror(f):
if f not in __mtime_cache:
try:
__mtime_cache[f] = os.stat(f)[stat.ST_MTIME]
except OSError:
return 0
return __mtime_cache[f]
def update_mtime(f):
__mtime_cache[f] = os.stat(f)[stat.ST_MTIME]
return __mtime_cache[f]
def mark_dependency(d, f):
if f.startswith('./'):
f = "%s/%s" % (os.getcwd(), f[2:])
deps = (d.getVar('__depends') or []) + [(f, cached_mtime(f))]
d.setVar('__depends', deps)
def supports(fn, data):
"""Returns true if we have a handler for this file, false otherwise"""
for h in handlers:
if h['supports'](fn, data):
return 1
return 0
def handle(fn, data, include = 0):
"""Call the handler that is appropriate for this file"""
for h in handlers:
if h['supports'](fn, data):
with data.inchistory.include(fn):
return h['handle'](fn, data, include)
raise ParseError("not a BitBake file", fn)
def init(fn, data):
for h in handlers:
if h['supports'](fn):
return h['init'](data)
def init_parser(d):
bb.parse.siggen = bb.siggen.init(d)
def resolve_file(fn, d):
if not os.path.isabs(fn):
bbpath = d.getVar("BBPATH", True)
newfn = bb.utils.which(bbpath, fn)
if not newfn:
raise IOError("file %s not found in %s" % (fn, bbpath))
fn = newfn
logger.debug(2, "LOAD %s", fn)
return fn
# Used by OpenEmbedded metadata
__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
if len(parts) > 3:
raise ParseError("Unable to generate default variables from filename (too many underscores)", mypkg)
exp = 3 - len(parts)
tmplist = []
while exp != 0:
exp -= 1
tmplist.append(None)
parts.extend(tmplist)
return parts
def get_file_depends(d):
'''Return the dependent files'''
dep_files = []
depends = d.getVar('__base_depends', True) or []
depends = depends + (d.getVar('__depends', True) or [])
for (fn, _) in depends:
dep_files.append(os.path.abspath(fn))
return " ".join(dep_files)
from bb.parse.parse_py import __version__, ConfHandler, BBHandler
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