4 File parsers for the BitBake build tools.
9 # Copyright (C) 2003, 2004 Chris Larson
10 # Copyright (C) 2003, 2004 Phil Blundell
12 # This program is free software; you can redistribute it and/or modify
13 # it under the terms of the GNU General Public License version 2 as
14 # published by the Free Software Foundation.
16 # This program is distributed in the hope that it will be useful,
17 # but WITHOUT ANY WARRANTY; without even the implied warranty of
18 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 # GNU General Public License for more details.
21 # You should have received a copy of the GNU General Public License along
22 # with this program; if not, write to the Free Software Foundation, Inc.,
23 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
25 # Based on functions from the base bb module, Copyright 2003 Holger Schurig
36 logger = logging.getLogger("BitBake.Parsing")
38 class ParseError(Exception):
39 """Exception raised when parsing fails"""
40 def __init__(self, msg, filename, lineno=0):
42 self.filename = filename
44 Exception.__init__(self, msg, filename, lineno)
48 return "ParseError at %s:%d: %s" % (self.filename, self.lineno, self.msg)
50 return "ParseError in %s: %s" % (self.filename, self.msg)
52 class SkipPackage(Exception):
53 """Exception raised to skip this package"""
57 if f not in __mtime_cache:
58 __mtime_cache[f] = os.stat(f)[stat.ST_MTIME]
59 return __mtime_cache[f]
61 def cached_mtime_noerror(f):
62 if f not in __mtime_cache:
64 __mtime_cache[f] = os.stat(f)[stat.ST_MTIME]
67 return __mtime_cache[f]
70 __mtime_cache[f] = os.stat(f)[stat.ST_MTIME]
71 return __mtime_cache[f]
73 def mark_dependency(d, f):
74 if f.startswith('./'):
75 f = "%s/%s" % (os.getcwd(), f[2:])
76 deps = (d.getVar('__depends') or [])
77 s = (f, cached_mtime_noerror(f))
80 d.setVar('__depends', deps)
82 def check_dependency(d, f):
83 s = (f, cached_mtime_noerror(f))
84 deps = (d.getVar('__depends') or [])
87 def supports(fn, data):
88 """Returns true if we have a handler for this file, false otherwise"""
90 if h['supports'](fn, data):
94 def handle(fn, data, include = 0):
95 """Call the handler that is appropriate for this file"""
97 if h['supports'](fn, data):
98 with data.inchistory.include(fn):
99 return h['handle'](fn, data, include)
100 raise ParseError("not a BitBake file", fn)
104 if h['supports'](fn):
105 return h['init'](data)
108 bb.parse.siggen = bb.siggen.init(d)
110 def resolve_file(fn, d):
111 if not os.path.isabs(fn):
112 bbpath = d.getVar("BBPATH", True)
113 newfn, attempts = bb.utils.which(bbpath, fn, history=True)
115 mark_dependency(d, af)
117 raise IOError("file %s not found in %s" % (fn, bbpath))
120 mark_dependency(d, fn)
121 if not os.path.isfile(fn):
122 raise IOError("file %s not found" % fn)
124 logger.debug(2, "LOAD %s", fn)
127 # Used by OpenEmbedded metadata
128 __pkgsplit_cache__={}
129 def vars_from_file(mypkg, d):
131 return (None, None, None)
132 if mypkg in __pkgsplit_cache__:
133 return __pkgsplit_cache__[mypkg]
135 myfile = os.path.splitext(os.path.basename(mypkg))
136 parts = myfile[0].split('_')
137 __pkgsplit_cache__[mypkg] = parts
139 raise ParseError("Unable to generate default variables from filename (too many underscores)", mypkg)
145 parts.extend(tmplist)
148 def get_file_depends(d):
149 '''Return the dependent files'''
151 depends = d.getVar('__base_depends', True) or []
152 depends = depends + (d.getVar('__depends', True) or [])
153 for (fn, _) in depends:
154 dep_files.append(os.path.abspath(fn))
155 return " ".join(dep_files)
157 from bb.parse.parse_py import __version__, ConfHandler, BBHandler