Squashed 'yocto-poky/' content from commit ea562de
git-subtree-dir: yocto-poky
git-subtree-split: ea562de57590c966cd5a75fda8defecd397e6436
diff --git a/bitbake/lib/bb/parse/__init__.py b/bitbake/lib/bb/parse/__init__.py
new file mode 100644
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--- /dev/null
+++ b/bitbake/lib/bb/parse/__init__.py
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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 errno
+import logging
+import os
+import stat
+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 SkipRecipe(Exception):
+ """Exception raised to skip this recipe"""
+
+class SkipPackage(SkipRecipe):
+ """Exception raised to skip this recipe (use SkipRecipe in new code)"""
+
+__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):
+ try:
+ __mtime_cache[f] = os.stat(f)[stat.ST_MTIME]
+ except OSError:
+ if f in __mtime_cache:
+ del __mtime_cache[f]
+ return 0
+ return __mtime_cache[f]
+
+def update_cache(f):
+ if f in __mtime_cache:
+ logger.debug(1, "Updating mtime cache for %s" % f)
+ update_mtime(f)
+
+def mark_dependency(d, f):
+ if f.startswith('./'):
+ f = "%s/%s" % (os.getcwd(), f[2:])
+ deps = (d.getVar('__depends', False) or [])
+ s = (f, cached_mtime_noerror(f))
+ if s not in deps:
+ deps.append(s)
+ d.setVar('__depends', deps)
+
+def check_dependency(d, f):
+ s = (f, cached_mtime_noerror(f))
+ deps = (d.getVar('__depends', False) or [])
+ return s in 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, attempts = bb.utils.which(bbpath, fn, history=True)
+ for af in attempts:
+ mark_dependency(d, af)
+ if not newfn:
+ raise IOError(errno.ENOENT, "file %s not found in %s" % (fn, bbpath))
+ fn = newfn
+
+ mark_dependency(d, fn)
+ if not os.path.isfile(fn):
+ raise IOError(errno.ENOENT, "file %s not found" % fn)
+
+ return fn
+
+# Used by OpenEmbedded metadata
+__pkgsplit_cache__={}
+def vars_from_file(mypkg, d):
+ if not mypkg or not mypkg.endswith((".bb", ".bbappend")):
+ 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