Re: [PATCH] smb2quota.py: Userspace helper to display quota information for the Linux SMB client file system (CIFS)

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Can you try the new updated patch?
Some of the suggested changes have been incorporated.
Pavel picked up the new changes from my github repo.
https://github.com/piastry/cifs-utils/commits/next

I will send a follow-on patch to work on the remaining changes.

On Wed, Oct 9, 2019 at 6:43 PM Aurélien Aptel <aaptel@xxxxxxxx> wrote:
>
>
> We now have 2 user scripts in the repo but the configure script doesn't
> know about them: they are not installed. If they are considered dev
> tools or experimental that's fine otherwise we should consider
> installing them on make install. I just wanted to point this out.
>
> A bit late but some comments on the script.
>
> Kenneth D'souza <kdsouza@xxxxxxxxxx> writes:
> > +#!/usr/bin/env python
>
> We should script for python3 at this point I think. Python2 is on the
> way out.
>
> > +def usage():
> > +    print("Usage: %s [-h] <options>  <filename>" % sys.argv[0])
> > +    print("Try 'smb2quota -h' for more information")
> > +    sys.exit()
>
> argparse already generates usage message from its conf.
>
> > +
> > +def parser_check(path, flag):
> > +    titleused = "Amount Used"
> > +    titlelim = "Quota Limit"
> > +    titlethr = "Warning Level"
> > +    titlesid = "SID"
> > +    buf = array.array('B', [0] * 16384)
> > +    struct.pack_into('<I', buf, 0, 4)  # InfoType: Quota
> > +    struct.pack_into('<I', buf, 16, 16384)  # InputBufferLength
> > +    struct.pack_into('<I', buf, 20, 16)  # OutputBufferLength
> > +    struct.pack_into('b', buf, 24, 0)  # return single
> > +    struct.pack_into('b', buf, 25, 1)  # return single
> > +    try:
> > +        f = os.open(path, os.O_RDONLY)
> > +        fcntl.ioctl(f, CIFS_QUERY_INFO, buf, 1)
> > +        os.close(f)
> > +        if flag == 0:
> > +            print(BBOLD + " %-7s | %-7s | %-7s | %s " + ENDC) % (titleused, titlelim, titlethr, titlesid)
> > +        q = Quota(buf[24:24 + struct.unpack_from('<I', buf, 16)[0]], flag)
> > +        print(q)
> > +    except IOError as reason:
> > +        print("ioctl failed: %s" % reason)
> > +    except OSError as reason:
> > +        print("ioctl failed: %s" % reason)
> > +
> > +
> > +def main():
> > +    if len(sys.argv) < 2:
> > +        usage()
> > +
> > +    parser = argparse.ArgumentParser(description="Please specify an action to perform.", prog="smb2quota")
>
> description is used to generate a useful help/usage message. Maybe use
> "tool to display quota information for the Linux SMB client file system (CIFS)"
>
> > +    parser.add_argument("-tabular", "-t", metavar="", help="Print quota information in tabular format")
> > +    parser.add_argument("-csv", "-c", metavar="", help="Print quota information in csv format")
> > +    parser.add_argument("-list", "-l", metavar="", help="Print quota information in list format")
>
> * I think we should use 2 dashes (i.e. "--tabular") for long options.
> * For boolean flags, action="store_true" is what you want
> * You can put let argparse know about the path arg, and then use args.path
>
>     parser.add_argument("--tabular", "-t", action="store_true", help="Print quota information in tabular format")
>     parser.add_argument("--csv", "-c", action="store_true", help="Print quota information in csv format")
>     parser.add_argument("--list", "-l", action="store_true", help="Print quota information in list format")
>     parser.add_argument("path", help="Path to query")
>
> Cheers,
> --
> Aurélien Aptel / SUSE Labs Samba Team
> GPG: 1839 CB5F 9F5B FB9B AA97  8C99 03C8 A49B 521B D5D3
> SUSE Software Solutions Germany GmbH, Maxfeldstr. 5, 90409 Nürnberg, DE
> GF: Felix Imendörffer, Mary Higgins, Sri Rasiah HRB 247165 (AG München)



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