December 2017 - Pharo-users

Breakpoints in Pharo

by Andrei Stebakov

Can I expect that break points in Pharo work in the same way as in Visual Works? When I set a break point in Pharo (6.1 on Windows), it displays a red dot with an exclamation mark and when I send this message to an object, the debugger doesn't get invoked.

Dec. 26, 2017

Re: [Pharo-users] Strange 'Connection closed while waiting for data.' Zinc error

by Sven Van Caekenberghe

> On 25 Dec 2017, at 18:03, Yuriy Tymchuk <yuriy.tymchuk(a)me.com> wrote: > > Hi, > > setting the reuse timeout to 0 or making a one shot client does not help. But while googling I found the exact issue described on the Pharo issue tracker: https://pharo.fogbugz.com/f/cases/18588/ > > The proposed workaround also worked for me: > ZnNetworkingUtils default socketStreamClass: SocketStream. You are on Windows I guess ? > Cheers, > Uko > >> On 25 Dec 2017, at 05:42, Andrew Glynn <aglynn42(a)gmail.com> wrote: >> >> The only time I've seen that behaviour is with the combination of a slow server and a proxy such as CloudFlare where the sysadmin has set tcp_wait to some ridiculously small number. Have you tried setting the connection reuse timeout to 0, or setting 'beOneShot'? >> >> Zinc doesn't support the additions in HTTP/2, but I can't offhand think of any reason that should cause that specific behaviour. I've had sufficient problems with HTTP/2 over slow connections (I live where there are no land lines of any kind) that I replaced the HTTP/2 code in Nginx with code from pureftpd in order to access my server at home when I'm out. >> >> Andrew >> >> ï»¿On 2017-12-24, 3:30 PM, "Pharo-users on behalf of Yuriy Tymchuk" <pharo-users-bounces(a)lists.pharo.org on behalf of yuriy.tymchuk(a)me.com> wrote: >> >> Hi, >> >> Iâm trying to hack something with Pharo 6.1 and Phillips Hue[1] (they have a simple REST API). When I try to do a GET request with Zinc like this: >> >> ZnClient new >> url: 'http://192.168.0.115:80/api/1028d66426293e821ecfd9ef1a0731df/lights/'; >> get >> >> I get a âConnectionClosed: Connection closed while waiting for dataâ exception. The service provides a JSON response that I can get without a problem by using a web browser or curl. Also if I try to access fewer data (e.g. adding /1 to the url, so it gets only one resource) I donât get the exception. >> >> What is even more strange, when I resume the exception I get the desired response i.e. this works: >> >> [ ZnClient new >> url: 'http://192.168.0.115:80/api/1028d66426293e821ecfd9ef1a0731df/lights/'; >> get ] >> >> on: ConnectionClosed >> do: [ :ex | >> ex resumeUnchecked: ex defaultResumeValue ] >> >> Of course I cannot share the server that is on my local network for resting, but maybe anyone knows it there are any known issues with Zinc, or if there are ways for me to debug the issue further. >> >> Cheers. >> Uko >> >> [1]: https://www.developers.meethue.com >> >> >> >> > >

Dec. 25, 2017

Re: [Pharo-users] Iceberg URL regex not matching how I would expect it to?

by JuliÃ¡n Maestri

user@server.com:/proj/proj.git Isn't it: git@server.com:user/project.git ? On Dec 24, 2017 15:36, "Ian Ian" <icjohnsoia(a)gmail.com> wrote: > Hi All, > > I am having trouble setting up iceberg to access my repository via ssh. > > On the command line I assess it via: git clone user@server.com:/proj/proj.git > and all works as expected. > > When adding trying to add the same repository to iceberg I get a parseUrl > error thrown from class IceScpRemote. While debugging I see the following > regex: > > matcher := '(ssh\://)?([\w\-]+@)?([\w\-.]+)(\:[\d]+)?(\:|/)/?([\w\-]+)/([\w\-]+)(\.git)?' > asRegex. > > which parses username@server.com:/directory/proj.git. > > However fails to parse: username@server.com:/dir1/dir2/proj.git > > The corrected version is as follows: > > matcher := '(ssh\://)?([\w\-]+@)?([\w\-.]+)(\:[\d]+)?(\:|/)/?(([\w\-]+)/)+([\w\-]+)(\.git)?' > asRegex. > > Questions: > > Is this by design? > of the top of your head: If I use the corrected version am I going to run > into other issues? > > > NB: I am using 64 bit Pharo 6.0 Update: #60520 > > Thanks in advance, > > >

Dec. 25, 2017

Re: [Pharo-users] Strange 'Connection closed while waiting for data.' Zinc error

by Yuriy Tymchuk

Hi, setting the reuse timeout to 0 or making a one shot client does not help. But while googling I found the exact issue described on the Pharo issue tracker: https://pharo.fogbugz.com/f/cases/18588/ The proposed workaround also worked for me: ZnNetworkingUtils default socketStreamClass: SocketStream. Cheers, Uko > On 25 Dec 2017, at 05:42, Andrew Glynn <aglynn42(a)gmail.com> wrote: > > The only time I've seen that behaviour is with the combination of a slow server and a proxy such as CloudFlare where the sysadmin has set tcp_wait to some ridiculously small number. Have you tried setting the connection reuse timeout to 0, or setting 'beOneShot'? > > Zinc doesn't support the additions in HTTP/2, but I can't offhand think of any reason that should cause that specific behaviour. I've had sufficient problems with HTTP/2 over slow connections (I live where there are no land lines of any kind) that I replaced the HTTP/2 code in Nginx with code from pureftpd in order to access my server at home when I'm out. > > Andrew > > ï»¿On 2017-12-24, 3:30 PM, "Pharo-users on behalf of Yuriy Tymchuk" <pharo-users-bounces(a)lists.pharo.org on behalf of yuriy.tymchuk(a)me.com> wrote: > > Hi, > > Iâm trying to hack something with Pharo 6.1 and Phillips Hue[1] (they have a simple REST API). When I try to do a GET request with Zinc like this: > > ZnClient new > url: 'http://192.168.0.115:80/api/1028d66426293e821ecfd9ef1a0731df/lights/'; > get > > I get a âConnectionClosed: Connection closed while waiting for dataâ exception. The service provides a JSON response that I can get without a problem by using a web browser or curl. Also if I try to access fewer data (e.g. adding /1 to the url, so it gets only one resource) I donât get the exception. > > What is even more strange, when I resume the exception I get the desired response i.e. this works: > > [ ZnClient new > url: 'http://192.168.0.115:80/api/1028d66426293e821ecfd9ef1a0731df/lights/'; > get ] > > on: ConnectionClosed > do: [ :ex | > ex resumeUnchecked: ex defaultResumeValue ] > > Of course I cannot share the server that is on my local network for resting, but maybe anyone knows it there are any known issues with Zinc, or if there are ways for me to debug the issue further. > > Cheers. > Uko > > [1]: https://www.developers.meethue.com > > > >

Dec. 25, 2017

Re: [Pharo-users] Object Persistence

by Stephane Ducasse

the author of omnibase told me that he always wanted to port it to Pharo. But may be someone should do it. There is also VOSS that is open source even if GPL that could be ported to pharo but this is an effort too. Stef On Mon, Dec 25, 2017 at 10:43 AM, Ian Ian <icjohnsoia(a)gmail.com> wrote: > Hi All, > > Thoughts of a purely OO nature? > > :)

Dec. 25, 2017

Re: [Pharo-users] Object Persistence

by Torsten Bergmann

Hi, with Voyage you can already use easy persistence in an OO way - with tiny (P)UnQlite up to Mongo. Check https://github.com/pharo-nosql Or you use Gemstone. For a full Magma version on Pharo: I doubt that will happen as Chris Muller was and still is more oriented towards Squeak as development platform. He is the author of Magma and beside the port it would cost him (or anyone who would do such a port) more effort to maintain another Pharo specific version. But maybe a Pharo client for a Squeak based Magma server is possible - with a Voyage wrapper. Bye T. > Gesendet: Montag, 25. Dezember 2017 um 12:54 Uhr > Von: "Joachim Tuchel" <jtuchel(a)objektfabrik.de> > An: "Any question about pharo is welcome" <pharo-users(a)lists.pharo.org> > Betreff: Re: [Pharo-users] Object Persistence > > Wasnât there an attempt to port Magma over from Squeak? That would sound like a nice alternative. Or Gemstone, of course. > > > Am 25.12.2017 um 10:43 schrieb Ian Ian <icjohnsoia(a)gmail.com>: > > > > Hi All, > > > > Thoughts of a purely OO nature? > > > > :) > > >

Dec. 25, 2017

Re: [Pharo-users] Object Persistence

by Joachim Tuchel

Wasnât there an attempt to port Magma over from Squeak? That would sound like a nice alternative. Or Gemstone, of course. > Am 25.12.2017 um 10:43 schrieb Ian Ian <icjohnsoia(a)gmail.com>: > > Hi All, > > Thoughts of a purely OO nature? > > :)

Dec. 25, 2017

Re: [Pharo-users] Object Persistence

by Hilaire

Fuel (present in the image) is nice, but not compatible from one image version to another one. Hilaire Le 25/12/2017 Ã 10:43, Ian Ian a Ã©critÂ : > Hi All, > > Thoughts of a purely OO nature? > > :) -- Dr. Geo http://drgeo.eu

Dec. 25, 2017

Re: [Pharo-users] Athens error

by Hilaire

The source is really needed to get Athens functionning, otherwise there is an error. On top of that, the source file name is confused by Pharo (it should be mimic of the 32bits images, althought 64bits image is used, and it should not depend on the bits number I guess). Here is an archive with the image[1], go in Contents/Resources/drgeo.image and used a 64 bits VM to run the image, do not used the embedded VMs, there are for P3. [1] https://www.dropbox.com/s/wc18e21p371z28f/DrGeo.app-18.01a.zip?dl=0 Hilaire Le 20/12/2017 Ã 21:08, Stephane Ducasse a Ã©critÂ : > Normally the call does not need the sources (if I'm correct in the > past it needed to generate the correct method argument or something > like that). > Can you provide more information? or the image somewhere? > Because FFI should improve and we are looking for edge corner bugs. > > Stef -- Dr. Geo http://drgeo.eu

Dec. 25, 2017

Re: [Pharo-users] Object Persistence

by Richard Sargent

GemStone/S, of course! On Dec 25, 2017 01:44, "Ian Ian" <icjohnsoia(a)gmail.com> wrote: > Hi All, > > Thoughts of a purely OO nature? > > :) >

Dec. 25, 2017