November 2017 - Pharo-users

Re: [Pharo-users] Pharo-users Digest, Vol 55, Issue 94

by Stephane Ducasse

Hi vikenti Can you tell us what you are trying to do? So that we can help you. There is no deployement tools in Pharo. First because we can easily break the one of visualworks with reflective operations. Second because we are focusing on something else. Now you can take Pharo and remove some packages. You can write your own release builder. What is cool is that you can also automate your release process. >From Pharo 70 the process is to take a small image and build a new one. We should work on packaging an App (removing system menu and other). Stef On Sat, Nov 11, 2017 at 10:29 PM, ÐÐ¸ÐºÐµÐ½ÑÐ¸Ð¹ ÐÐ¾ÑÐ°Ð¿Ð¾Ð² <vikenti.potapov(a)gmail.com> wrote: > > I want to get these esug videos, but i've searched through the whole pharo site and i haven't found them ... :( > I appreciate if you point me where to find help on working with minimal image\deploying with Pharo. > And i also think this very important information should be available on pharo site at conspicuous place. > > What about Dr.Geo - i've downloaded this program to test from official site (http://www.drgeo.eu/download#TOC-PC-Mac-GNU-Linux) I launched DrGeo.bat, as it noted in instruction. It shown me console window and Pharo command line options. That's all. It didn't start. I think, the reason is - also cyrillic paths, but ... who knows? > > And also i mean some simple and understandable deployment tool (as in Cincom VW exists) but not manual-written bash scripts. This tool asks me what class\accessor send open message, asks what to strip and how to pack my image. Few simple steps and i have perfectly cleaned minimal image with all image started methods tuned to load necessary class. It's really cool stuff. It's a pity, my low-level SmallTalk knowledge (VW + Pharo) is not enough to port this tool or create the new one. > > Please, understand me right, i don't criticize pharo, but i'm trying to understand what to do and how to do with less efforts for me. And these are the questions every developer asks. > >> On 11-11-17 18:58, ???????? ??????? wrote: >> > Another stumbling block is application deployment. >> >> You want to start from a minimal image and load everything you need with >> a Metacello baseline/configuration. And you want to change some settings >> to run without sources. You will run into parts that are not modularized >> enough yet and need their baselines to be split up further than they are >> now. >> >> The minimal image is rather minimal. See the esug videos >> >> Stephan > >

Nov. 12, 2017

Re: [Pharo-users] RBRuleIfNotNilDo usage

by Stephane Ducasse

I wonder if we packaged somewhere the removed deprecated method. We should do that but since we do it manually I guess that this is ad-hoc. Stef On Sun, Nov 12, 2017 at 2:45 PM, Alistair Grant <akgrant0710(a)gmail.com> wrote: > Hi Stef, > > On 12 November 2017 at 14:34, Stephane Ducasse <stepharo.self(a)gmail.com> wrote: >> Hi alistair >> >> >> If you run your program the code will be automatically transformed (I >> cannot check the deprecation definitino right now) >> >> Else have a look at tests of the ParseTreeRewriter. >> >> Stef >> >> On Sun, Nov 12, 2017 at 2:12 PM, Alistair Grant <akgrant0710(a)gmail.com> wrote: >>> Hi Everyone, >>> >>> I'm loading some code in to Pharo 7 that tries to use #ifNotNilDo:. >>> >>> There's already a transformation to re-write it to the correct >>> #ifNotNil: - RBRuleIfNotNilDo. >>> >>> How can I apply the transformation to all existing methods in the >>> image that call #ifNotNilDo:? >>> >>> Thanks, >>> Alistair > > Thanks! > > #ifNotNilDo: was deprecated in Pharo 6, and the method was removed > completely in Pharo 7. > > The easiest thing to do is to port #ifNotNilDo: forward to Pharo 7 so > that the methods are automatically re-written. > > And then get the offending libraries to be updated. But that's another story. > > Thanks again, > Alistair >

Nov. 12, 2017

Re: [Pharo-users] Network data exchange - Basys and Seamless usage questioning

by Denis Kudriashov

Hi Cedrick. 2017-11-12 10:47 GMT+01:00 CÃ©drick BÃ©ler <cdrick65(a)gmail.com>: > Hi all and Denis, > > Iâve played a bit with Basys and Seamless. Basys is the low level P2P > connection framework used by Seamless. > First, thanks for such works. Heavily documented and tested. Thatâs super > cool. > Thank's. But I think doc needs more love. I did only one pass on it. > > My objective is to have several images running (one representing one app > belonging to one or more singular entity realm). > > Lets say image A1, A2, A3 belongs to Alice. And image B1, B2, â¦ to Bob. > > They exchange messages conveying information. So the aim of the network > layer is for me to keep messages synchronized betweens A(s) and B(s). I > have inbox and outbox for that. This is actually quite close to the basys > abstractions on LocalPeer and RemotePeer (active and passive). > > So I played a bit with basys and can declare a network between A1 and B1 > for instance. Can you show example how you work with your objects using this network? > I wonder if I need as much network as possible connection (A1B1 A1B2 â¦ but > also A1A2, A1A3, A2A3, â¦). Not sure how to declare network with more than 2 > nodesâ¦ > I can send string message, and eventually binary. I think I may > implemented proper message send. > Then, there is seamless that is based on basys and that is far more > complete. Several transport and message send possibilities, distributed > object with proxy remote delegation, etc. > I could use seamless but I find it goes too far for my purpose (it can > actually execute code in the remote image - I donât want that, at least by > default). > > At first I don't want to execute code on the peer, only send message to it > and received message form it (some of this message could be code invocation > but actually more in a business process manner, meaning I activate an > activity, but code run locally). > This being said, do you think > 1) itâs better to use Basys and subclass BasysNetwork (I used > BasisNetworkStub) ? I just send message serialization ? > BasisNetworkStub is only created for tests. And I think it misses one important function: how identify peers. When your image get new connection it should identify what remote peer is connected by it. So two connections from same remote image should be identified as single peer instance on your local image. I would of course use Seamless for distributed applications because it allows to implement solution with objects locally and then transparently split them over network. But Seamless not implements any kind of message queue. So I would use some proven solution for it instead of custom implementation. But it can depends on the task. > 2) or may I use Seamless straight with restrictions (I wonder if limiting > the classes that can be executed would suffice - proxies should only be on > the peer inbox and outbox I think) ? 3) or maybe I should do a lighter version of seamless ? If so where should > I look at/change ? > You can try subclass SeamlessNetwork and override request processing method with special restrictions on what requests are permitted. Maybe you can propose such kind of policy to the Seamless itself. > > TIA, > > CÃ©drick > > >

Nov. 12, 2017

Pharo-Chrome (was: Soup bug(fix))

by Alistair Grant

Hi Stef, On 12 November 2017 at 14:47, Stephane Ducasse <stepharo.self(a)gmail.com> wrote: > exampleNavigation > | chrome page logger | > logger := InMemoryLogger new. > logger start. > chrome := GoogleChrome new > debugOn; > debugSession; > open; > yourself. > page := chrome tabPages first. > page enablePage. > page enableDOM. > page navigateTo: 'http://pharo.org'. > page getDocument. > page getMissingChildren. > page updateTitle. > logger stop. > ^{ chrome. page. logger. } > > but in fact I realised that I would like to a simple doc :) > > > On Sun, Nov 12, 2017 at 2:44 PM, Stephane Ducasse > <stepharo.self(a)gmail.com> wrote: >> Hi alistair >> >> this is cool. >> Do you have one little example so that we can see how we can use it? >> >> Stef Fair enough :-) I'll try and extend the readme to include some basic documentation. Cheers, Alistair >> On Sat, Nov 11, 2017 at 4:38 PM, Alistair Grant <akgrant0710(a)gmail.com> wrote: >>> On 9 November 2017 at 00:00, Kjell Godo <squeaklist(a)gmail.com> wrote: >>>> i like to collect some newspaper comics from an online newspaper >>>> but it takes really long to do it by hand by hand >>>> i tried Soup but i didnât get anywhere >>>> the pictures were hidden behind a script or something >>>> is there anything to do about that? >>> >>> Most of the web pages I want to scrape use javascript to construct the >>> DOM, which makes Soup. XMLHTMLParser, etc. useless. >>> >>> I've extended Torsten's Pharo-Chrome library and use that to navigate >>> the DOM in a way similar to Soup: >>> >>> https://github.com/akgrant43/Pharo-Chrome >>> >>> This gets around the issue with javascript since it waits for the >>> browser to load the page, run the javascript and construct the DOM. >>> >>> HTH, >>> Alistair >>> >>> >>> >>>> i donât want to collect them all >>>> i have the XPath .pdf but i havenât read it yet >>>> >>>> these browsers seem to gobble up memory >>>> and while open they just keep getting bigger till the OS session crash >>>> might there be a browser that is more minimal? >>>> >>>> Vivaldi seems better at not bloating up RAM >>> >

Nov. 12, 2017

Re: [Pharo-users] Soup bug(fix)

by Stephane Ducasse

exampleNavigation | chrome page logger | logger := InMemoryLogger new. logger start. chrome := GoogleChrome new debugOn; debugSession; open; yourself. page := chrome tabPages first. page enablePage. page enableDOM. page navigateTo: 'http://pharo.org'. page getDocument. page getMissingChildren. page updateTitle. logger stop. ^{ chrome. page. logger. } but in fact I realised that I would like to a simple doc :) On Sun, Nov 12, 2017 at 2:44 PM, Stephane Ducasse <stepharo.self(a)gmail.com> wrote: > Hi alistair > > this is cool. > Do you have one little example so that we can see how we can use it? > > Stef > > > On Sat, Nov 11, 2017 at 4:38 PM, Alistair Grant <akgrant0710(a)gmail.com> wrote: >> On 9 November 2017 at 00:00, Kjell Godo <squeaklist(a)gmail.com> wrote: >>> i like to collect some newspaper comics from an online newspaper >>> but it takes really long to do it by hand by hand >>> i tried Soup but i didnât get anywhere >>> the pictures were hidden behind a script or something >>> is there anything to do about that? >> >> Most of the web pages I want to scrape use javascript to construct the >> DOM, which makes Soup. XMLHTMLParser, etc. useless. >> >> I've extended Torsten's Pharo-Chrome library and use that to navigate >> the DOM in a way similar to Soup: >> >> https://github.com/akgrant43/Pharo-Chrome >> >> This gets around the issue with javascript since it waits for the >> browser to load the page, run the javascript and construct the DOM. >> >> HTH, >> Alistair >> >> >> >>> i donât want to collect them all >>> i have the XPath .pdf but i havenât read it yet >>> >>> these browsers seem to gobble up memory >>> and while open they just keep getting bigger till the OS session crash >>> might there be a browser that is more minimal? >>> >>> Vivaldi seems better at not bloating up RAM >>

Nov. 12, 2017

Re: [Pharo-users] RBRuleIfNotNilDo usage

by Alistair Grant

Hi Stef, On 12 November 2017 at 14:34, Stephane Ducasse <stepharo.self(a)gmail.com> wrote: > Hi alistair > > > If you run your program the code will be automatically transformed (I > cannot check the deprecation definitino right now) > > Else have a look at tests of the ParseTreeRewriter. > > Stef > > On Sun, Nov 12, 2017 at 2:12 PM, Alistair Grant <akgrant0710(a)gmail.com> wrote: >> Hi Everyone, >> >> I'm loading some code in to Pharo 7 that tries to use #ifNotNilDo:. >> >> There's already a transformation to re-write it to the correct >> #ifNotNil: - RBRuleIfNotNilDo. >> >> How can I apply the transformation to all existing methods in the >> image that call #ifNotNilDo:? >> >> Thanks, >> Alistair Thanks! #ifNotNilDo: was deprecated in Pharo 6, and the method was removed completely in Pharo 7. The easiest thing to do is to port #ifNotNilDo: forward to Pharo 7 so that the methods are automatically re-written. And then get the offending libraries to be updated. But that's another story. Thanks again, Alistair

Nov. 12, 2017

Re: [Pharo-users] Soup bug(fix)

by Stephane Ducasse

Hi alistair this is cool. Do you have one little example so that we can see how we can use it? Stef On Sat, Nov 11, 2017 at 4:38 PM, Alistair Grant <akgrant0710(a)gmail.com> wrote: > On 9 November 2017 at 00:00, Kjell Godo <squeaklist(a)gmail.com> wrote: >> i like to collect some newspaper comics from an online newspaper >> but it takes really long to do it by hand by hand >> i tried Soup but i didnât get anywhere >> the pictures were hidden behind a script or something >> is there anything to do about that? > > Most of the web pages I want to scrape use javascript to construct the > DOM, which makes Soup. XMLHTMLParser, etc. useless. > > I've extended Torsten's Pharo-Chrome library and use that to navigate > the DOM in a way similar to Soup: > > https://github.com/akgrant43/Pharo-Chrome > > This gets around the issue with javascript since it waits for the > browser to load the page, run the javascript and construct the DOM. > > HTH, > Alistair > > > >> i donât want to collect them all >> i have the XPath .pdf but i havenât read it yet >> >> these browsers seem to gobble up memory >> and while open they just keep getting bigger till the OS session crash >> might there be a browser that is more minimal? >> >> Vivaldi seems better at not bloating up RAM >

Nov. 12, 2017

Re: [Pharo-users] Anybody in this group in Bangalore or India

by Stephane Ducasse

Thanks for the information. Let us know how to help you. Do you want me to post this on the Pharo weekly blog? Stef On Sun, Nov 12, 2017 at 1:14 PM, Sanjay Minni <sm(a)planage.com> wrote: > Hi Stef, > > This is a business application on Fixed Assets Management and I want to use > Pharo+Seaside stack to make the current desktop application in the link > below into an updated browser based application. > http://www.minisoftindia.com/assetage/index.html > > This will be multi-tenanted hosted application in an internet server and > there are features planned for users / tenants inter-connectivity so as to > increase colloboration between users. > > Its planned as a subscription based model and if possible there will also be > a desktop (local hosted) version as well. > > 2 Pharo group members took up the assignment / helped me and went along some > way to design / build the partially done application but both are currently > out of time hence I am looking at some associates. > (they can pitch in here) > > Budget is a constraint as this is self funded hence I am looking at someone > in India (preferably Bangalore) since hourly rates in the west works out to > 5X rates in India. > > I though I will also get pharo skills and join hands but I guess learning is > not that easy now > > The various applications at htto://www.minisoftindia.com/products were quite > successful sometime back with a fair user base but since then were shelved. > I plan to re-introduce them in a new Avatar > > i will be happy to answer any questions > > regards > Sanjay > > > Stephane Ducasse-3 wrote >> Hi sanjay >> >> tell us more about this interesting project. >> BTW I would love to have a success story from india and I know that >> some people developed nice frameworks there but I forgot the contact. >> >> Stef >> >> On Sun, Nov 12, 2017 at 11:12 AM, Sanjay Minni < > >> sm@ > >> > wrote: >>> Hi, >>> >>> Is there anybody in this group located in Bangalore, >>> >>> You could connect with me at sanjay.minni_at_gmail.com if you would like >>> to >>> join in an interesting project >>> >>> regards >>> Sanjay >>> >>> >>> >>> ----- >>> --- >>> Regards, Sanjay >>> -- >>> Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html >>> > > > > > > ----- > --- > Regards, Sanjay > -- > Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html >

Nov. 12, 2017

Re: [Pharo-users] I18n in pharo

by Stephane Ducasse

Indeed we should make sure that all the Inform:, Alert: can be translated. Now I'm not convinced that we should use the old SqueakTranslator. On Sun, Nov 12, 2017 at 1:17 PM, Pavel Krivanek <pavel.krivanek(a)gmail.com> wrote: > > > 2017-11-12 13:02 GMT+01:00 Stephane Ducasse <stepharo.self(a)gmail.com>: >> >> Excellent Pavel. This is great. >> So I do not get it. What is then not working? > > > The layout of the menu is wrong and everything needs to be proven with the > newer versions of the dependent packages. > > -- Pavel > >> >> >> Stef >> >> On Sun, Nov 12, 2017 at 12:13 AM, Pavel Krivanek >> <pavel.krivanek(a)gmail.com> wrote: >> > >> > >> > 2017-11-10 11:52 GMT+01:00 Hilaire <hilaire(a)drgeo.eu>: >> >> >> >> A cleaner Pharo will help there. >> >> >> >> To be frank, I found later Pharo releases not inspiring. Bigger, bigger >> >> and bigger with added code, protocol changes, and bugs at will. It is >> >> becoming too complicated for a hobby use of it. >> >> >> >> I decided I will not finish porting DrGeo to P6 or P7, and it will >> >> likely >> >> die with P3. >> > >> > >> > To run DrGeo on Pharo 7 is not hard (see the screenshot) - of course it >> > has >> > some issues but they can be definitely solved. It would be pity to throw >> > it >> > away - at least you can benefit from 64-bit and faster VM. >> > >> > -- Pavel >> > >> >> >> >> Pharo should have been clean up to the bones before adding. It was the >> >> initial moto, no? >> >> >> >> >> >> Le 10/11/2017 Ã 11:14, Marcus Denker a Ã©crit : >> >>> >> >>> It would be nice if someone who uses it would take the lead >> >>> so we can improve the default that is shipped with Pharo. >> >> >> >> >> >> -- >> >> Dr. Geo >> >> http://drgeo.eu >> >> >> >> >> >> >> > >> >

Nov. 12, 2017

Re: [Pharo-users] RBRuleIfNotNilDo usage

by Stephane Ducasse

Hi alistair If you run your program the code will be automatically transformed (I cannot check the deprecation definitino right now) Else have a look at tests of the ParseTreeRewriter. Stef On Sun, Nov 12, 2017 at 2:12 PM, Alistair Grant <akgrant0710(a)gmail.com> wrote: > Hi Everyone, > > I'm loading some code in to Pharo 7 that tries to use #ifNotNilDo:. > > There's already a transformation to re-write it to the correct > #ifNotNil: - RBRuleIfNotNilDo. > > How can I apply the transformation to all existing methods in the > image that call #ifNotNilDo:? > > Thanks, > Alistair >

Nov. 12, 2017