Imagelibrary/littlefs
1
0
Fork 1
mirror of https://github.com/littlefs-project/littlefs.git synced 2025-12-09 09:02:53 +00:00
Code Issues Packages Projects Releases Wiki Activity

scripts: Fixed failed subprocess stderr, unconditionally forward

Browse Source 
It looks like the failure case in our scripts' subprocess stderr
handling was not tested well during a fix to stderr blocking (a735bcd).

This code was attempting to print stderr only if an error occured, but
with stderr=None this just results in a NoneType TypeError.

In retrospect, completely hiding stderr is kind of shitty if a
subprocess fails, but it doesn't seem possible to read from both stdin
and stderr with Python's APIs without getting stuck when the stderr's
buffer is full.

It might be possible to work around this with either multithreading,
select calls, or a temp file, but I'm not sure slightly less verbose
scripts are worth the added complexity in every single subprocess call.

For now just reverting to unconditionally forwarding stderr from the
child process. This is the simplest/most robust option.
This commit is contained in:
Christopher Haster
2024-11-29 01:41:53 -06:00
parent b58266c3b0
commit 25814ed5cb
8 changed files with 0 additions and 88 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
scripts/code.py
View File

@@ -176,7 +176,6 @@ def collect_dwarf_files(obj_path, *,
print(' '.join(shlex.quote(c) for c in cmd))
proc = sp.Popen(cmd,
stdout=sp.PIPE,
stderr=None if args.get('verbose') else sp.DEVNULL,
universal_newlines=True,
errors='replace',
close_fds=False)
@@ -200,9 +199,6 @@ def collect_dwarf_files(obj_path, *,
files[int(m.group('no'))] = m.group('path')
proc.wait()
if proc.returncode != 0:
if not args.get('verbose'):
for line in proc.stderr:
sys.stderr.write(line)
raise sp.CalledProcessError(proc.returncode, proc.args)
# simplify paths
@@ -264,7 +260,6 @@ def collect_dwarf_info(obj_path, filter=None, *,
print(' '.join(shlex.quote(c) for c in cmd))
proc = sp.Popen(cmd,
stdout=sp.PIPE,
stderr=None if args.get('verbose') else sp.DEVNULL,
universal_newlines=True,
errors='replace',
close_fds=False)
@@ -293,9 +288,6 @@ def collect_dwarf_info(obj_path, filter=None, *,
m.group('v').strip())
proc.wait()
if proc.returncode != 0:
if not args.get('verbose'):
for line in proc.stderr:
sys.stderr.write(line)
raise sp.CalledProcessError(proc.returncode, proc.args)
return entries
@@ -318,7 +310,6 @@ def collect_sizes(obj_path, *,
print(' '.join(shlex.quote(c) for c in cmd))
proc = sp.Popen(cmd,
stdout=sp.PIPE,
stderr=None if args.get('verbose') else sp.DEVNULL,
universal_newlines=True,
errors='replace',
close_fds=False)
@@ -330,9 +321,6 @@ def collect_sizes(obj_path, *,
sizes[func] = size
proc.wait()
if proc.returncode != 0:
if not args.get('verbose'):
for line in proc.stderr:
sys.stderr.write(line)
raise sp.CalledProcessError(proc.returncode, proc.args)
return sizes