From 8f65434827840a71966798a35b090ce5e31ae3c0 Mon Sep 17 00:00:00 2001
From: Tomasz Dziendzielski <tomasz.dziendzielski@gmail.com>
Date: Sat, 6 Feb 2021 21:42:38 +0100
Subject: [PATCH] bitbake: BBHandler: Don't classify shell functions that names
 start with "python*" as python function

If shell function name starts with 'python' or 'fakeroot' parser wrongly
assumes it's python/fakeroot function.

[YOCTO #14204]

Use regex lookahead assertions to check if 'python' expression is
followed by whitespace or '(' and if 'fakeroot' is followed by
whitespace.

(Bitbake rev: 9df61675f0e9bb67a78bfa1a16b1cf9fa4c333f1)

Signed-off-by: Tomasz Dziendzielski <tomasz.dziendzielski@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
---
 bitbake/lib/bb/parse/parse_py/BBHandler.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/bitbake/lib/bb/parse/parse_py/BBHandler.py b/bitbake/lib/bb/parse/parse_py/BBHandler.py
index 6e216effb8..20252c519e 100644
--- a/bitbake/lib/bb/parse/parse_py/BBHandler.py
+++ b/bitbake/lib/bb/parse/parse_py/BBHandler.py
@@ -22,7 +22,7 @@ from .ConfHandler import include, init
 # For compatibility
 bb.deprecate_import(__name__, "bb.parse", ["vars_from_file"])
 
-__func_start_regexp__    = re.compile(r"(((?P<py>python)|(?P<fr>fakeroot))\s*)*(?P<func>[\w\.\-\+\{\}\$]+)?\s*\(\s*\)\s*{$" )
+__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))|(.*)))))*")