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https://github.com/littlefs-project/littlefs.git
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55ea13b994
I don't know how I completely missed that this doesn't actually work! Using del _does_ work in Python's repl, but it makes sense the repl may differ from actual function execution in this case. The problem is Python still thinks the relevant builtin is a local variables after deletion, raising an UnboundLocalError instead of performing a global lookup. In theory this would work if the variable could be made global, but since global/nonlocal statements are lifted, Python complains with "SyntaxError: name 'list' is parameter and global". And that's A-Ok! Intentionally shadowing language builtins already puts this code deep into ugly hacks territory.
111 lines
3.6 KiB
Python
Executable File
111 lines
3.6 KiB
Python
Executable File
#!/usr/bin/env python3
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# prevent local imports
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if __name__ == "__main__":
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__import__('sys').path.pop(0)
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ERRS = [
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('OK', 0, "No error" ),
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('UNKNOWN', -1, "Unknown error" ),
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('INVAL', -22, "Invalid parameter" ),
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('NOTSUP', -95, "Operation not supported" ),
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('IO', -5, "Error during device operation" ),
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('CORRUPT', -84, "Corrupted" ),
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('NOENT', -2, "No directory entry" ),
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('EXIST', -17, "Entry already exists" ),
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('NOTDIR', -20, "Entry is not a dir" ),
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('ISDIR', -21, "Entry is a dir" ),
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('NOTEMPTY', -39, "Dir is not empty" ),
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('FBIG', -27, "File too large" ),
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('NOSPC', -28, "No space left on device" ),
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('NOMEM', -12, "No more memory available" ),
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('NOATTR', -61, "No data/attr available" ),
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('NAMETOOLONG', -36, "File name too long" ),
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('RANGE', -34, "Result out of range" ),
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]
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def main(errs, *,
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list=False):
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import builtins
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list_, list = list, builtins.list
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lines = []
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# list all known error codes
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if list_:
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for n, e, h in ERRS:
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lines.append(('LFS_ERR_'+n, str(e), h))
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# find these errors
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else:
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def find_err(err):
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# find by LFS_ERR_+name
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for n, e, h in ERRS:
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if 'LFS_ERR_'+n == err.upper():
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return n, e, h
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# find by ERR_+name
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for n, e, h in ERRS:
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if 'ERR_'+n == err.upper():
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return n, e, h
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# find by name
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for n, e, h in ERRS:
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if n == err.upper():
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return n, e, h
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# find by E+name
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for n, e, h in ERRS:
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if 'E'+n == err.upper():
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return n, e, h
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try:
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# find by err code
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for n, e, h in ERRS:
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if e == int(err, 0):
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return n, e, h
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# find by negated err code
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for n, e, h in ERRS:
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if e == -int(err, 0):
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return n, e, h
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except ValueError:
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pass
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# not found
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raise KeyError(err)
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for err in errs:
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try:
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n, e, h = find_err(err)
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lines.append(('LFS_ERR_'+n, str(e), h))
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except KeyError:
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lines.append(('?', err, 'Unknown err code'))
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# first find widths
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w = [0, 0]
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for l in lines:
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w[0] = max(w[0], len(l[0]))
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w[1] = max(w[1], len(l[1]))
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# then print results
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for l in lines:
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print('%-*s %-*s %s' % (
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w[0], l[0],
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w[1], l[1],
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l[2]))
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if __name__ == "__main__":
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import argparse
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import sys
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parser = argparse.ArgumentParser(
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description="Decode littlefs error codes.",
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allow_abbrev=False)
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parser.add_argument(
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'errs',
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nargs='*',
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help="Error codes or error names to decode.")
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parser.add_argument(
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'-l', '--list',
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action='store_true',
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help="List all known error codes.")
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sys.exit(main(**{k: v
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for k, v in vars(parser.parse_intermixed_args()).items()
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if v is not None}))
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