Re: [PATCH 5/6] stg mail: add basic support for git send-email

[Alex Chiang <achiang@hp.com>]

* Karl Wiberg <kha@treskal.com>:
> On Sat, Nov 28, 2009 at 8:50 PM, Alex Chiang <achiang@hp.com> wrote:
> 
> > +    # XXX: yuck, there's gotta be a more pythonic way. Ideally we'd like
> > +    # to use the git_opts dictionary as our mapping between stg mail and
> > +    # git send-email; extract k, v pairs from git_opts, and use those
> > +    # to iterate across options somehow.
> > +    git_opts = { 'to': '--to=', 'cc': '--cc=', 'bcc': '--bcc=' }
> > +    if options.to:
> > +        for a in options.to:
> > +            cmd.append("--to=%s" % a)
> > +    if options.cc:
> > +        for a in options.cc:
> > +            cmd.append("--cc=%s" % a)
> > +    if options.bcc:
> > +        for a in options.bcc:
> > +            cmd.append("--bcc=%s" % a)
> > +    if not options.auto:
> > +        cmd.append("--suppress-cc=body")
> 
> Like this?
> 
> for x in ['to', 'cc', 'bcc']:
>     if getattr(options, x):
>         cmd.extend('--%s=%s' % (x, a) for a in getattr(options, x))

Yeah, that looks nice. Re-implemented with your suggestion.

> > +    (fd, path) = mkstemp()
> > +    os.write(fd, msg.as_string(options.mbox))
> > +    os.close(fd)
> > +
> > +    try:
> > +        cmd.append(path)
> > +        call(cmd)
> > +    except Exception, err:
> > +        os.unlink(path)
> > +        raise CmdException, str(err)
> > +
> > +    os.unlink(path)
> 
> To avoid having to remember to call unlink in all paths, you can write
> 
> try:
>     try:
>         cmd.append(path)
>         call(cmd)
>     except Exception, e:
>         raise CmdException(str(e))
> finally:
>     os.unlink(path)
> 
> (The combined try...except...finally statement didn't appear until
> python 2.5, but we'd like to stay compatible with 2.4.)

This statement confuses me a bit. The way I read it, I shouldn't
use your suggestion due to compat reasons?

Thanks,
/ac