Re: posix ps (was Re: Adding `pgrep' and `pkill' to /usr/bin)

From: Cyrille Lefevre (cyrille.lefevre_at_laposte.net)
Date: 03/27/04

  • Next message: Alexey Dokuchaev: "Re: posix ps (was Re: Adding `pgrep' and `pkill' to /usr/bin)" 
    To: "Garance A Drosihn" <drosih@rpi.edu>
Date: Sat, 27 Mar 2004 11:41:09 +0100

    "Garance A Drosihn" <drosih@rpi.edu> wrote:
    > At 6:40 PM +0100 3/26/04, Cyrille Lefevre wrote:
    > >
    > >two years ago, I've added posix syntax and so to my locally
    > >ps(1). For instance, I'm currently adding the notion of
    > >dynamic personalities (the term comes from linux) instead
    > >of static #define such as... say :
    > >
    > >$ ps -X help
    > > any bsd bsd43reno bsd44 default extended freebsd hpux
    > > irix netbsd none openbsd pedantic posix relaxed solaris
    > > sunos susv3 tru64
    > ...etc...
    >
    > >When finished, I'll probably submit these changes as a port,
    > >... since I suppose -arch will reject these important changes
    > >to a native command.
    >
    > I (personally) think that is overkill for a base-system command.
    > I do think that it is important for us to improve on what we
    > have for `ps, but that does not mean we immediately have to
    > rush out and re-implement every version of `ps' on the planet.

    not every version, but at least, the one w/ interesting options.
    my patch will follow w/o the enhanced personality part.
    could you take an eye on it before to commit your changes ?
    as I read your proposed changes, we could merge them w/o
    any problem. well, in fact, I already merge some of them
    (the or part instead of and).

    original ps : 26668 (no posix compliant)
    yours : 31072 (partly posix compliant)
    mine : 35684 (fully posix compliant)

    > You are suggesting that we go from being the least feature-full
    > and most-oddball `ps', to trying to match every `ps' along with
    > every subtle formatting-nuance of every system. With the changes

    at the beginning, it was not, but ...

    > that I just did, I went through a fair amount of trouble to make
    > sure that I was not increasing the size of `ps'. There are some
    > FreeBSD users who need to squeeze the OS onto very small file
    > systems, and I think that is a reasonable thing for our users
    > to want. I (personally) think that the size and complexity of
    > some all-encompassing `ps' is not worth the effort, and not worth
    > the PR's we will get over every feature does not *EXACTLY* match
    > how it behaves on the "original OS".
    >
    > I can see your `ps' being a very good option to have as a port,
    > and I might even install it in some situations, but I do not
    > think we want something that elaborate for a base-system command.
    >
    > >here are some sample outputs :
    > >
    > >$ PERSONALITY=freebsd ps -?
    >
    > Secondly, I personally am not fond of commands which COMPLETELY
    > change their behavior based on environment variables. Different
    > options, different formats, different rules.

    that's what other system does to avoid conflicts and for clarity.

    > If nothing else, writing the man page for that would be a real
    > nightmare, and I am no good at writing man pages... :-)

    not necesseraly, take a look on the tru64 manual pages.

    [snip]
    > I was going to write those up in reply to this message, but I
    > have a steady-stream of "emergency interruptions" (here at work)
    > today, and I'm supposed to be somewhere else right now, so I
    > guess my thoughts will wait until a later date.

    see you

    Cyrille Lefevre. 

    -- 
home: mailto:cyrille.lefevre@laposte.net
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