Initial commit
This commit is contained in:
Your Name
@@ -0,0 +1,273 @@
|
||||
"""
|
||||
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
|
||||
#
|
||||
# SPDX-License-Identifier: GPL-2.0-only
|
||||
#
|
||||
|
||||
import re, bb, os
|
||||
import bb.build, bb.utils, bb.data_smart
|
||||
|
||||
from . import ConfHandler
|
||||
from .. import resolve_file, ast, logger, ParseError
|
||||
from .ConfHandler import include, init
|
||||
|
||||
__func_start_regexp__ = re.compile(r"(((?P<py>python(?=(\s|\()))|(?P<fr>fakeroot(?=\s)))\s*)*(?P<func>[\w\.\-\+\{\}\$:]+)?\s*\(\s*\)\s*{$" )
|
||||
__inherit_regexp__ = re.compile(r"inherit\s+(.+)" )
|
||||
__export_func_regexp__ = re.compile(r"EXPORT_FUNCTIONS\s+(.+)" )
|
||||
__addtask_regexp__ = re.compile(r"addtask\s+(?P<func>\w+)\s*((before\s*(?P<before>((.*(?=after))|(.*))))|(after\s*(?P<after>((.*(?=before))|(.*)))))*")
|
||||
__deltask_regexp__ = re.compile(r"deltask\s+(.+)")
|
||||
__addhandler_regexp__ = re.compile(r"addhandler\s+(.+)" )
|
||||
__def_regexp__ = re.compile(r"def\s+(\w+).*:" )
|
||||
__python_func_regexp__ = re.compile(r"(\s+.*)|(^$)|(^#)" )
|
||||
__python_tab_regexp__ = re.compile(r" *\t")
|
||||
|
||||
__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:
|
||||
classtype = d.getVar("__bbclasstype", False)
|
||||
origfile = file
|
||||
for t in ["classes-" + classtype, "classes"]:
|
||||
file = origfile
|
||||
if not os.path.isabs(file) and not file.endswith(".bbclass"):
|
||||
file = os.path.join(t, '%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 os.path.exists(file):
|
||||
break
|
||||
|
||||
if not os.path.exists(file):
|
||||
raise ParseError("Could not inherit file %s" % (file), fn, lineno)
|
||||
|
||||
if not file in __inherit_cache:
|
||||
logger.debug("Inheriting %s (from %s:%d)" % (file, fn, lineno))
|
||||
__inherit_cache.append( file )
|
||||
d.setVar('__inherit_cache', __inherit_cache)
|
||||
try:
|
||||
bb.parse.handle(file, d, True)
|
||||
except (IOError, OSError) as exc:
|
||||
raise ParseError("Could not inherit file %s: %s" % (fn, exc.strerror), fn, lineno)
|
||||
__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, baseconfig=False):
|
||||
global __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)
|
||||
|
||||
# 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 __inpython__, __infunc__, __body__, __residue__, __classname__
|
||||
|
||||
# Check tabs in python functions:
|
||||
# - def py_funcname(): covered by __inpython__
|
||||
# - python(): covered by '__anonymous' == __infunc__[0]
|
||||
# - python funcname(): covered by __infunc__[3]
|
||||
if __inpython__ or (__infunc__ and ('__anonymous' == __infunc__[0] or __infunc__[3])):
|
||||
tab = __python_tab_regexp__.match(s)
|
||||
if tab:
|
||||
bb.warn('python should use 4 spaces indentation, but found tabs in %s, line %s' % (root, lineno))
|
||||
|
||||
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:\n'''\n%s\n'''\nwhich is in the middle of a multiline expression. This syntax is invalid, please correct it." % (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:\n%s\nPlease clarify whether this is all a comment or should be parsed." % (lineno - len(__residue__), fn, "\n".join(__residue__)))
|
||||
|
||||
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:
|
||||
if len(m.group().split()) == 2:
|
||||
# Check and warn for "addtask task1 task2"
|
||||
m2 = re.match(r"addtask\s+(?P<func>\w+)(?P<ignores>.*)", s)
|
||||
if m2 and m2.group('ignores'):
|
||||
logger.warning('addtask ignored: "%s"' % m2.group('ignores'))
|
||||
|
||||
# Check and warn for "addtask task1 before task2 before task3", the
|
||||
# similar to "after"
|
||||
taskexpression = s.split()
|
||||
for word in ('before', 'after'):
|
||||
if taskexpression.count(word) > 1:
|
||||
logger.warning("addtask contained multiple '%s' keywords, only one is supported" % word)
|
||||
|
||||
# Check and warn for having task with exprssion as part of task name
|
||||
for te in taskexpression:
|
||||
if any( ( "%s_" % keyword ) in te for keyword in bb.data_smart.__setvar_keyword__ ):
|
||||
raise ParseError("Task name '%s' contains a keyword which is not recommended/supported.\nPlease rename the task not to include the keyword.\n%s" % (te, ("\n".join(map(str, bb.data_smart.__setvar_keyword__)))), fn)
|
||||
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, conffile=False)
|
||||
|
||||
# Add us to the handlers list
|
||||
from .. import handlers
|
||||
handlers.append({'supports': supports, 'handle': handle, 'init': init})
|
||||
del handlers
|
||||
Reference in New Issue
Block a user