November 2013 - Pharo-dev - lists.pharo.org

Re: [Pharo-dev] How I can add my projects to configuration browser ?

by Damien Cassou

On Sun, Nov 3, 2013 at 8:39 PM, kilon alios <kilon.alios(a)gmail.com> wrote: > thanks so only thing it takes is to be a contributor , or ask to be added as > contributor to that project ? done -- Damien Cassou http://damiencassou.seasidehosting.st "Success is the ability to go from one failure to another without losing enthusiasm." Winston Churchill

Nov. 4, 2013

Re: [Pharo-dev] WhatsUp from: 2013-11-04 until: 2013-11-17

by Damien Cassou

### Here's what I've been up to since the last WhatsUp: - find funding for a new intern working on Pharo - extract Pharo launcher into its own source package for Ubuntu (I will now be able to release new Pharo Launcher packages without releasing the VM) - closely collaborate with Ben Coman on the PharoLauncher (new release with announcement soon) - simplify Pier so it does not contain Pillar anymore ### What's next, until 2013-11-17 (*): - Create an installer for the Pharo Launcher on both MacOSX and Windows -- Damien Cassou http://damiencassou.seasidehosting.st "Success is the ability to go from one failure to another without losing enthusiasm." Winston Churchill

Nov. 4, 2013

Re: [Pharo-dev] Spaceship?

by kilon alios

It looks to me that this would be the source of less readable code, I prefer the choosing message approach by Kent Beck (Smalltalk Best Practice Patterns) where intent is clearly stated. Unless there is an advantage I am missing here. This is an example that less verbose code does not mean simpler code. Of course this will largely depend on the specifics of the case used. On Mon, Nov 4, 2013 at 3:37 PM, Yuriy Tymchuk <yuriy.tymchuk(a)me.com> wrote: > Now she someone wantâs to have a comparable object he has to use > TComparable and define < and =. > With spaceship he has to define only <=>. Iâm not sure whatâs better. Just > wanted to hear other peoples opinion > > On 04 Nov 2013, at 13:35, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> > wrote: > > > do you have a real use case? > > > > Stef > > > > On Nov 4, 2013, at 1:32 PM, Yuriy Tymchuk <yuriy.tymchuk(a)me.com> wrote: > > > >> Hi everyone. > >> > >> Iâm wandering if there was any sort of a discussion about a spaceship > method used in Ruby. > >> > >> The concept is that you should implement a method <=> > >> that returns something negative if the receiver is smaller then a > parameter, > >> positive when the receiver is greater then a parameter, > >> and 0 if they are equal. > >> > >> This way if you are implementing comparable objectâs the only method > you have to redefine is spaceship (<=>). > >> > >> Yes, I know that i Pharo you have to only redefine < and =. But maybe > it would be interesting to use spaceship :) > >> > >> What do you think? > >> Cheers! > >> Uko > > > > > > >

Nov. 4, 2013

Re: [Pharo-dev] Github and Pharo

by kilon alios

I used "CommandShell open" it has the same problem. I took a look at Window pipes looks like from what I gather that they work quite differently (surprise surprise) to Unix pipes. Its certainly an interesting subject that I will continue to investigate and maybe contribute back if I find a solution. At this point all I need is the ability to issue simple commands to the command line like "cd" , "dir" , "git push" , "git pull", etc. So nothing major. Maybe I will be able to solve this, maybe I wont. Time will tell. On Mon, Nov 4, 2013 at 3:09 PM, David T. Lewis <lewis(a)mail.msen.com> wrote: > On Mon, Nov 04, 2013 at 01:58:29PM +0100, Goubier Thierry wrote: > > > > > > Le 04/11/2013 12:11, kilon alios a ?crit : > > >yeap filetree did the trick here. However it does not allow to browse > > >through the git commits as gitfiletree does, the only commit available > > >is the last commit. > > > > > >I took a look at CommandShell and friends and they all look pretty much > > >very broken. For example in workspace I executed > > >[ CommandShellTranscript open.] and trying "ls" or "dir" it creates an > > >error because it add C path inside pharo subdirectories. Dont know if > > >this is normal behavior. > > Use "CommandShell open" rather than "CommandShellTranscript open". > > > > > > I hope someone with more knowledge than me of OSProcess under windows > > will have a look :) > > > > OSProcess support for Windows is incomplete, so this will probably not > do what you need. If the OSProcess is included in the Windows VM, it will > let you run a Windows program, but it will not do most of the other things > that you expect from OSProcess. > > Check http://www.squeaksource.com/ProcessWrapper.html for a possible > alternative. > > Dave > > >

Nov. 4, 2013

Re: [Pharo-dev] Spaceship?

by Yuriy Tymchuk

Now she someone wantâs to have a comparable object he has to use TComparable and define < and =. With spaceship he has to define only <=>. Iâm not sure whatâs better. Just wanted to hear other peoples opinion On 04 Nov 2013, at 13:35, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> wrote: > do you have a real use case? > > Stef > > On Nov 4, 2013, at 1:32 PM, Yuriy Tymchuk <yuriy.tymchuk(a)me.com> wrote: > >> Hi everyone. >> >> Iâm wandering if there was any sort of a discussion about a spaceship method used in Ruby. >> >> The concept is that you should implement a method <=> >> that returns something negative if the receiver is smaller then a parameter, >> positive when the receiver is greater then a parameter, >> and 0 if they are equal. >> >> This way if you are implementing comparable objectâs the only method you have to redefine is spaceship (<=>). >> >> Yes, I know that i Pharo you have to only redefine < and =. But maybe it would be interesting to use spaceship :) >> >> What do you think? >> Cheers! >> Uko > >

Nov. 4, 2013

Re: [Pharo-dev] Github and Pharo

by Goubier Thierry

Le 04/11/2013 14:09, David T. Lewis a Ã©crit : > On Mon, Nov 04, 2013 at 01:58:29PM +0100, Goubier Thierry wrote: >> >> >> Le 04/11/2013 12:11, kilon alios a ?crit : >>> yeap filetree did the trick here. However it does not allow to browse >>> through the git commits as gitfiletree does, the only commit available >>> is the last commit. >>> >>> I took a look at CommandShell and friends and they all look pretty much >>> very broken. For example in workspace I executed >>> [ CommandShellTranscript open.] and trying "ls" or "dir" it creates an >>> error because it add C path inside pharo subdirectories. Dont know if >>> this is normal behavior. > > Use "CommandShell open" rather than "CommandShellTranscript open". > > >> >> I hope someone with more knowledge than me of OSProcess under windows >> will have a look :) >> > OSProcess support for Windows is incomplete, so this will probably not > do what you need. If the OSProcess is included in the Windows VM, it will > let you run a Windows program, but it will not do most of the other things > that you expect from OSProcess. > > Check http://www.squeaksource.com/ProcessWrapper.html for a possible > alternative. Thanks Dave; no easy solution on that, it seems. I'll have a look then with FileSystem-Git, this one may be a more portable solution. Windows is still a world apart from the rest :( Thierry -- Thierry Goubier CEA list Laboratoire des Fondations des SystÃ¨mes Temps RÃ©el EmbarquÃ©s 91191 Gif sur Yvette Cedex France Phone/Fax: +33 (0) 1 69 08 32 92 / 83 95

Nov. 4, 2013

Re: [Pharo-dev] Duplicate IVs | Bug or feature?

by Marcus Denker

On 04 Nov 2013, at 11:29, Noury Bouraqadi <bouraqadi(a)gmail.com> wrote: > Hi, > > In Pharo2.0 #20625 it's possible to create two classes, one inheriting from the other, and declaring the exact same IV (attached code). > It turns out that instances of the subclass hold two IVs with the exact name. > When accessing the IV in the superclass, the first IV is used, while in the subclass the second IV is accessed. > > Bug or feature? Bug. It used to raise a hard error when you tried to add the same ivar. Now I was cleaning up the SourceFileArray, which is used while accessing source: so removing an ivar *needs* duplication for a short overlap. So I removed the hard error, which was wrong (it should have been a warning). In Pharo3 with the new class builder this is fixed. Marcus

Nov. 4, 2013

Re: [Pharo-dev] Spaceship?

by phil＠highoctane.be

Type and double dispatch + nil considÃ©rations come to mind. nil <=> 7 gives? 7.0 <=> 3 gives ? Object <=>: anObject (self = anObject) ifTrue: [ ^0]. (self < anObject) ifTrue: [ ^ -1] ifFalse: [ ^ 1]. "otherwise let's raise an error" What can now go wrong from here ? Phil On Monday, November 4, 2013, StÃ©phane Ducasse wrote: > do you have a real use case? > > Stef > > On Nov 4, 2013, at 1:32 PM, Yuriy Tymchuk <yuriy.tymchuk(a)me.com<javascript:;>> > wrote: > > > Hi everyone. > > > > Iâm wandering if there was any sort of a discussion about a spaceship > method used in Ruby. > > > > The concept is that you should implement a method <=> > > that returns something negative if the receiver is smaller then a > parameter, > > positive when the receiver is greater then a parameter, > > and 0 if they are equal. > > > > This way if you are implementing comparable objectâs the only method you > have to redefine is spaceship (<=>). > > > > Yes, I know that i Pharo you have to only redefine < and =. But maybe it > would be interesting to use spaceship :) > > > > What do you think? > > Cheers! > > Uko > > > -- --- Philippe Back Dramatic Performance Improvements Mob: +32(0) 478 650 140 | Fax: +32 (0) 70 408 027 Mail:phil@highoctane.be | Web: http://philippeback.eu Blog: http://philippeback.be | Twitter: @philippeback Youtube: http://www.youtube.com/user/philippeback/videos High Octane SPRL rue cour Boisacq 101 | 1301 Bierges | Belgium Pharo Consortium Member - http://consortium.pharo.org/ Featured on the Software Process and Measurement Cast - http://spamcast.libsyn.com Sparx Systems Enterprise Architect and Ability Engineering EADocX Value Added Reseller

Nov. 4, 2013

Re: [Pharo-dev] Github and Pharo

by David T. Lewis

On Mon, Nov 04, 2013 at 01:58:29PM +0100, Goubier Thierry wrote: > > > Le 04/11/2013 12:11, kilon alios a ?crit : > >yeap filetree did the trick here. However it does not allow to browse > >through the git commits as gitfiletree does, the only commit available > >is the last commit. > > > >I took a look at CommandShell and friends and they all look pretty much > >very broken. For example in workspace I executed > >[ CommandShellTranscript open.] and trying "ls" or "dir" it creates an > >error because it add C path inside pharo subdirectories. Dont know if > >this is normal behavior. Use "CommandShell open" rather than "CommandShellTranscript open". > > I hope someone with more knowledge than me of OSProcess under windows > will have a look :) > OSProcess support for Windows is incomplete, so this will probably not do what you need. If the OSProcess is included in the Windows VM, it will let you run a Windows program, but it will not do most of the other things that you expect from OSProcess. Check http://www.squeaksource.com/ProcessWrapper.html for a possible alternative. Dave

Nov. 4, 2013

Re: [Pharo-dev] Github and Pharo

by Goubier Thierry

Le 04/11/2013 12:11, kilon alios a Ã©crit : > yeap filetree did the trick here. However it does not allow to browse > through the git commits as gitfiletree does, the only commit available > is the last commit. > > I took a look at CommandShell and friends and they all look pretty much > very broken. For example in workspace I executed > [ CommandShellTranscript open.] and trying "ls" or "dir" it creates an > error because it add C path inside pharo subdirectories. Dont know if > this is normal behavior. I hope someone with more knowledge than me of OSProcess under windows will have a look :) Thierry > I am coding in macos and ubuntu , but mostly on macos so for me this is > not a big deal. I am using Git Bash and SmartGit and I am very happy > with both so its no big loss for me. > > http://www.syntevo.com/smartgithg/ > > SmartGit works great on windows, macos and linux. A very elegant > application. > > > On Mon, Nov 4, 2013 at 12:34 PM, phil(a)highoctane.be > <mailto:phil@highoctane.be> <phil(a)highoctane.be > <mailto:phil@highoctane.be>> wrote: > > I guess that's why I used filetree:// and not gitfiletree:// along > with the git client to do the CLI commits and pushes on Windows (one > can use GitBash for example, or MobaXterm Git plugin > http://mobaxterm.mobatek.net/ > > http://mobaxterm.mobatek.net/plugins.html > Git + Curl +Emacs [for > you Gutenberg people, but Pdflatex is missing]). > Additional benefit of MobaXterm on Windows: it has curl, wget etc, > so Zeroconf scripts work easily. > <rant> > Now, I am more and more leaning towards having a debian VM into > which I can do all the development. That's the kind of system > production ends up on anyway. Debian 6 for me, as 7 requires to go > into Multiarch + 32 bits libs which is not on by default and is a > headache to get right. I had a hard time getting Pharo to run on > Debian 7. And when faced with a given default server box, it was > worse as there was no way to add the packages. This excluded Pharo > while Rails/PHP people ran happily. :-( > </rant> > Phil > > -- Thierry Goubier CEA list Laboratoire des Fondations des SystÃ¨mes Temps RÃ©el EmbarquÃ©s 91191 Gif sur Yvette Cedex France Phone/Fax: +33 (0) 1 69 08 32 92 / 83 95

Nov. 4, 2013