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bitbake: ast/ConfHandler: Add a syntax to clear variable

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unset VAR
will clear variable VAR
unset VAR[flag]
will clear flag "flag" from var VAR

(Bitbake rev: bedbd46ece8d1285b5cd2ea07dc64b4875b479aa)

Signed-off-by: Jérémy Rosen <jeremy.rosen@openwide.fr>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Jérémy Rosen
2016-08-16 14:04:47 +02:00
committed by Richard Purdie
parent b50b14e372
commit 0eb6d709b6
4 changed files with 79 additions and 0 deletions
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12
bitbake/lib/bb/parse/parse_py/ConfHandler.py
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@@ -57,6 +57,8 @@ __config_regexp__ = re.compile( r"""
__include_regexp__ = re.compile( r"include\s+(.+)" )
__require_regexp__ = re.compile( r"require\s+(.+)" )
__export_regexp__ = re.compile( r"export\s+([a-zA-Z0-9\-_+.${}/]+)$" )
__unset_regexp__ = re.compile( r"unset\s+([a-zA-Z0-9\-_+.${}/]+)$" )
__unset_flag_regexp__ = re.compile( r"unset\s+([a-zA-Z0-9\-_+.${}/]+)\[([a-zA-Z0-9\-_+.${}/]+)\]$" )
def init(data):
topdir = data.getVar('TOPDIR', False)
@@ -185,6 +187,16 @@ def feeder(lineno, s, fn, statements):
ast.handleExport(statements, fn, lineno, m)
return
m = __unset_regexp__.match(s)
if m:
ast.handleUnset(statements, fn, lineno, m)
return
m = __unset_flag_regexp__.match(s)
if m:
ast.handleUnsetFlag(statements, fn, lineno, m)
return
raise ParseError("unparsed line: '%s'" % s, fn, lineno);
# Add us to the handlers list