If we talk to terminals that like colors, we need to ignore the vt100 escape sequences when matching strings.
An unprocessed barebox console prompt would e.g. look like: ESC[1;32mbarebox@ESC[1;36mARM QEMU virt64:/ESC[0m where we cannot match for something like "barebox@ARM QEMU virt64:/". The same applies to colored Linux terminal output of course. The "\x1b\[" from the regex catches the standard start of ansii escape sequence while the rest catches the actual command code executed. Signed-off-by: Enrico Jorns <e...@pengutronix.de> --- meta/lib/oeqa/utils/qemurunner.py | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/meta/lib/oeqa/utils/qemurunner.py b/meta/lib/oeqa/utils/qemurunner.py index 6734cee48d..c3d8e9e815 100644 --- a/meta/lib/oeqa/utils/qemurunner.py +++ b/meta/lib/oeqa/utils/qemurunner.py @@ -30,6 +30,8 @@ control_range = list(range(0,32))+list(range(127,160)) control_chars = [chr(x) for x in control_range if chr(x) not in string.printable] re_control_char = re.compile('[%s]' % re.escape("".join(control_chars))) +# Regex to remove the ansii (color) control codes from console strings in order to match the text only +re_vt100 = re.compile(r'(\x1b\[|\x9b)[^@-_a-z]*[@-_a-z]|\x1b[@-_a-z]') class QemuRunner: @@ -662,7 +664,7 @@ class QemuRunner: time.sleep(0.1) answer = self.server_socket.recv(1024) if answer: - data += answer.decode('utf-8') + data += re_vt100.sub("", answer.decode('utf-8')) # Search the prompt to stop if re.search(self.boot_patterns['search_cmd_finished'], data): break -- 2.39.2
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