tools, scripts: refactor error-out statements of Python scripts
In Python, sys.exit() function can also take an object other
than an integer.
If an integer is given to the argument, Python exits with the return
code of it. If a non-integer argument is given, Python outputs it
to stderr and exits with the return code of 1.
That means,
print >> sys.stderr, "Blah Blah"
sys.exit(1)
is equivalent to
sys.exit("Blah Blah")
The latter is a useful shorthand.
Note:
Some error messages in Buildman and Patman were output to stdout.
But they should go to stderr. They are also fixed by this commit.
This is a nice side effect.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Simon Glass <sjg@chromium.org>
diff --git a/tools/patman/checkpatch.py b/tools/patman/checkpatch.py
index 0d4e935..34a3bd2 100644
--- a/tools/patman/checkpatch.py
+++ b/tools/patman/checkpatch.py
@@ -34,9 +34,8 @@
return fname
path = os.path.dirname(path)
- print >> sys.stderr, ('Cannot find checkpatch.pl - please put it in your ' +
- '~/bin directory or use --no-check')
- sys.exit(1)
+ sys.exit('Cannot find checkpatch.pl - please put it in your ' +
+ '~/bin directory or use --no-check')
def CheckPatch(fname, verbose=False):
"""Run checkpatch.pl on a file.