From 5069b561894206b65a16c3b8cfebd6b3e76c61d6 Mon Sep 17 00:00:00 2001 From: Stefan Hajnoczi Date: Wed, 10 Jan 2018 20:25:51 +0000 Subject: tracetool: prefix parse errors with line numbers Include the file line number in the message that is printed when trace-events parse errors are raised. [Use enumerate(fobj, 1) to avoid having to increment a 0-based index later, as suggested by Eric Blake. --Stefan] Suggested-by: Dr. David Alan Gilbert Signed-off-by: Stefan Hajnoczi Reviewed-by: Eric Blake Message-id: 20180110202553.31889-2-stefanha@redhat.com Signed-off-by: Stefan Hajnoczi --- scripts/tracetool/__init__.py | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/scripts/tracetool/__init__.py b/scripts/tracetool/__init__.py index 0670ec17d5..a744e26f91 100644 --- a/scripts/tracetool/__init__.py +++ b/scripts/tracetool/__init__.py @@ -300,13 +300,18 @@ def read_events(fobj): """ events = [] - for line in fobj: + for lineno, line in enumerate(fobj, 1): if not line.strip(): continue if line.lstrip().startswith('#'): continue - event = Event.build(line) + try: + event = Event.build(line) + except ValueError as e: + arg0 = 'Error on line %d: %s' % (lineno, e.args[0]) + e.args = (arg0,) + e.args[1:] + raise # transform TCG-enabled events if "tcg" not in event.properties: -- cgit v1.2.1