From 6b90b53c7a103b0658702c06169f64f09b43bde7 Mon Sep 17 00:00:00 2001 From: Enrico Jorns Date: Fri, 11 Oct 2024 14:01:14 +0200 Subject: [PATCH] oeqa/utils/qemurunner: support ignoring vt100 escape sequences 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 ANSI escape sequence while the rest catches the actual command code executed. (From OE-Core rev: 33bbe4cb040f890121681865fbcf28bc8213a170) Signed-off-by: Enrico Jorns Signed-off-by: Richard Purdie --- 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 cda43aad8c..63fc6f6b53 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 ANSI (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]') def getOutput(o): import fcntl @@ -681,7 +683,7 @@ 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