August 2017 - Pharo-users - lists.pharo.org

Re: [Pharo-users] Minimizing an Application

by Stephane Ducasse

Hi Richard, If you make sure that you have a seed and maps of dependencies for all the packages you use then you can build daily your project with a integration farm. I worked with Envy and I was used to load in one click a working or deployed image. And it worked. Then working on the granularity of your packages and their dependencies you can control what you deploy. We are going in that direction for Pharo because we believe it is the way for most projects. So in the future we will get PharoSeed and Pharo as two images we maintain and deploy but people will build their own based on PharoSeed. Now guillermo is his PhD developed also a shrinking system that can produce hyper specialised image (and quite small we got up to 11k image for 2 + 3). We could produce a WebCounter Seaside app in 500 k. Now such scenarios are more for advanced and specific use. Stef On Tue, Aug 22, 2017 at 12:46 PM, horrido <horrido.hobbies(a)gmail.com> wrote: > If you start with a minimal imaqe, it's not obvious to me how you'd add a > missing class and pull in all of its dependencies (which can be voluminous). > And for a large application, there could be many, many missing classes. This > sounds rather arduous. > > > Tim Mackinnon wrote >> There has been a lot of great work on this front on the Pharo side from >> the "team" and PharoLambda has made use of it (although it's a tiny >> project). >> >> My footprint is ~22mb including vm & image. And leaving out sources. >> >> The ./scripts directory has the example of how to do it, along side the >> .gitlab-ci.yml file. >> >> Unlike the commercial distributions (and this may have changed recently), >> there is a minimal image you can have download, which has enough to >> bootstrap loading your project via metacello. There are no browser tools >> or morphic things in the starting image I have chosen. >> >> You can potentially get smaller - but it's a decent result. The only bit I >> added was to remove testcases (optional), and clear down metacello. >> >> It's probably worthy of a blog post - but honestly the running example is >> pretty straight forward. >> >> The commercial tools all have a decent "strip dead code" tool, that does a >> similar thing in reverse - which is equally a decent way of approaching >> the problem and can lead to even tinier results. >> >> Tim >> >> Sent from my iPhone >> >>> On 21 Aug 2017, at 21:25, horrido < > >> horrido.hobbies@ > >> > wrote: >>> >>> I received this comment on Facebook: >>> >>> Smalltalk is a fantastic language and its development environment can't >>> be >>> beat... But the documentation for the many open source implementations is >>> contradictory or confusing or missing. I can't speak for the commercial >>> versions. Without an experienced mentor it is not possible to create a >>> complex app. And even when you have done so, *I know no way to strip out >>> the >>> unused part of the image as well as the embedded source code*. >>> ----- >>> >>> This issue of stripping out unused code seems to recur a lot. And truth >>> be >>> told, I've never seen a clear explanation of how to do this. Can someone >>> provide clear direction? Is this documented anywhere? I'd like to use the >>> information in future to assuage other people's concerns. >>> >>> Thanks. >>> >>> >>> >>> -- >>> View this message in context: >>> http://forum.world.st/Minimizing-an-Application-tp4963262.html >>> Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. >>> > > > > > > -- > View this message in context: http://forum.world.st/Minimizing-an-Application-tp4963262p4963349.html > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. >

Aug. 22, 2017

Re: [Pharo-users] Where do I find a Pillar syntax summary?

by Stephane Ducasse

Cyril I imagine that you refer to link ref with *@...* Yes we should probably produce a stylesheet. Now I'm busy finishing the new lecture. Since we could not reproduce the Pillar image for Pharo 40 (because of a bug in metacello) luc pushed the Pharo mooc to Pharo 50. Luc created a makefile producer from the pillar.conf and friday we will do a day with damien on having the new makefile on all the booklets + travis. So that I can have one way to do things for all the project. I want to deprecate all the postBuild.sh creation in all the projects. But lecture first Stef On Tue, Aug 22, 2017 at 12:56 PM, Cyril Ferlicot D. <cyril.ferlicot(a)gmail.com> wrote: > Le 22/08/2017 Ã 09:25, H. Hirzel a Ã©crit : >> Hello >> >> There is a tutorial for the Pillar document writing system [1]. The >> Pharo 6 catalog entry shows that the Pillar syntax goes back to the >> Pier CMS syntax of Lukas Renggli [2]. >> >> There is a syntax summary for the Pier CMS >> >> http://www.piercms.com/doc/syntax [3] >> >> I assume that most this still applies for Pillar? >> But I can imagine that there have here been updates / changes / extensions. >> >> I am looking for a Pillar syntax summary ("cheat sheet"). >> Is this available somewhere? >> >> Kind regards >> >> Hannes >> >> > > Hi! > > For everything before 2015 there is this one: > > https://www.cheatography.com/benjaminvanryseghem/cheat-sheets/pillar/ > > But everything added after 2015 there is none :( Also there was a change > of syntax on the links but I don't remember which one. The correct > syntax should be in the PDF you referenced in [1]. > > I'll add an issue to the Pillar repo to create such a sheet but I will > not have the time to do it. (At least not now) > >> >> >> [1] https://ci.inria.fr/pharo-contribution/job/EnterprisePharoBook/lastSuccessf… >> >> [2] Pharo 6.1 catalog entry for Pillar >> >> Pillar is a wiki-like syntax, its document model, a parser for it, and >> a set of exporters (e.g., HTML, LaTeX, Markdown...). Pillar is >> primarily used as the wiki syntax behind the *Pier >> CMS>http://piercms.com*. Pillar is also being used to write books: >> e.g., *the Enterprise Pharo book>http://books.pharo.org/*. >> >> The original creator of Pillar (formerly known as ''the syntax behind >> the Pier CMS'') is Lukas Renggli. Nevertheless, *Damien >> Cassou>damien.cassou(a)inria.fr* is now the maintainer. The website is >> at *http://www.smalltalkhub.com/#!/~Pier/Pillar*. Issues should be >> reported to *https://github.com/pillar-markup/pillar/issues* >> >> >> [3] http://wiki.squeak.org/squeak/3700 has some information about Pier. >> It refers to a Smallwiki mailing list which is active. >> >> https://www.list.inf.unibe.ch/pipermail/smallwiki/ >> >> e.g. https://www.list.inf.unibe.ch/pipermail/smallwiki/2016-November/008051.html >> with an announcment 'Pier3 with latest Pillar' >> > > > -- > Cyril Ferlicot > https://ferlicot.fr > > http://www.synectique.eu > 2 rue Jacques PrÃ©vert 01, > 59650 Villeneuve d'ascq France >

Aug. 22, 2017

Re: [Pharo-users] [Pharo-dev] TechTalk Dates for the rest of 2017

by Alexandre Bergel

>> I'm not sure Pharo tech talk is the good place but would love to see such a presentation. >> > Why not? I am sure Alex will have some code in there.. " programming, from scratch, a small artificial intelligenceâ > if done with Pharo would be a very nice thing todo for the tech talk. Yes, that is the plan. It could be a very practical lecture, with a lot of coding (but not many lines of code). Alexandre > >> Maybe you can do a Google or Twitch live video about that ? >> > Yes, that at one of the pre-defined tech talk dates. > > Marcus > >

Aug. 22, 2017

Re: [Pharo-users] Where do I find a Pillar syntax summary?

by Cyril Ferlicot D.

Le 22/08/2017 Ã 09:25, H. Hirzel a Ã©crit : > Hello > > There is a tutorial for the Pillar document writing system [1]. The > Pharo 6 catalog entry shows that the Pillar syntax goes back to the > Pier CMS syntax of Lukas Renggli [2]. > > There is a syntax summary for the Pier CMS > > http://www.piercms.com/doc/syntax [3] > > I assume that most this still applies for Pillar? > But I can imagine that there have here been updates / changes / extensions. > > I am looking for a Pillar syntax summary ("cheat sheet"). > Is this available somewhere? > > Kind regards > > Hannes > > Hi! For everything before 2015 there is this one: https://www.cheatography.com/benjaminvanryseghem/cheat-sheets/pillar/ But everything added after 2015 there is none :( Also there was a change of syntax on the links but I don't remember which one. The correct syntax should be in the PDF you referenced in [1]. I'll add an issue to the Pillar repo to create such a sheet but I will not have the time to do it. (At least not now) > > > [1] https://ci.inria.fr/pharo-contribution/job/EnterprisePharoBook/lastSuccessf… > > [2] Pharo 6.1 catalog entry for Pillar > > Pillar is a wiki-like syntax, its document model, a parser for it, and > a set of exporters (e.g., HTML, LaTeX, Markdown...). Pillar is > primarily used as the wiki syntax behind the *Pier > CMS>http://piercms.com*. Pillar is also being used to write books: > e.g., *the Enterprise Pharo book>http://books.pharo.org/*. > > The original creator of Pillar (formerly known as ''the syntax behind > the Pier CMS'') is Lukas Renggli. Nevertheless, *Damien > Cassou>damien.cassou(a)inria.fr* is now the maintainer. The website is > at *http://www.smalltalkhub.com/#!/~Pier/Pillar*. Issues should be > reported to *https://github.com/pillar-markup/pillar/issues* > > > [3] http://wiki.squeak.org/squeak/3700 has some information about Pier. > It refers to a Smallwiki mailing list which is active. > > https://www.list.inf.unibe.ch/pipermail/smallwiki/ > > e.g. https://www.list.inf.unibe.ch/pipermail/smallwiki/2016-November/008051.html > with an announcment 'Pier3 with latest Pillar' > -- Cyril Ferlicot https://ferlicot.fr http://www.synectique.eu 2 rue Jacques PrÃ©vert 01, 59650 Villeneuve d'ascq France

Aug. 22, 2017

Re: [Pharo-users] Minimizing an Application

by horrido

If you start with a minimal imaqe, it's not obvious to me how you'd add a missing class and pull in all of its dependencies (which can be voluminous). And for a large application, there could be many, many missing classes. This sounds rather arduous. Tim Mackinnon wrote > There has been a lot of great work on this front on the Pharo side from > the "team" and PharoLambda has made use of it (although it's a tiny > project). > > My footprint is ~22mb including vm & image. And leaving out sources. > > The ./scripts directory has the example of how to do it, along side the > .gitlab-ci.yml file. > > Unlike the commercial distributions (and this may have changed recently), > there is a minimal image you can have download, which has enough to > bootstrap loading your project via metacello. There are no browser tools > or morphic things in the starting image I have chosen. > > You can potentially get smaller - but it's a decent result. The only bit I > added was to remove testcases (optional), and clear down metacello. > > It's probably worthy of a blog post - but honestly the running example is > pretty straight forward. > > The commercial tools all have a decent "strip dead code" tool, that does a > similar thing in reverse - which is equally a decent way of approaching > the problem and can lead to even tinier results. > > Tim > > Sent from my iPhone > >> On 21 Aug 2017, at 21:25, horrido < > horrido.hobbies@ > > wrote: >> >> I received this comment on Facebook: >> >> Smalltalk is a fantastic language and its development environment can't >> be >> beat... But the documentation for the many open source implementations is >> contradictory or confusing or missing. I can't speak for the commercial >> versions. Without an experienced mentor it is not possible to create a >> complex app. And even when you have done so, *I know no way to strip out >> the >> unused part of the image as well as the embedded source code*. >> ----- >> >> This issue of stripping out unused code seems to recur a lot. And truth >> be >> told, I've never seen a clear explanation of how to do this. Can someone >> provide clear direction? Is this documented anywhere? I'd like to use the >> information in future to assuage other people's concerns. >> >> Thanks. >> >> >> >> -- >> View this message in context: >> http://forum.world.st/Minimizing-an-Application-tp4963262.html >> Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. >> -- View this message in context: http://forum.world.st/Minimizing-an-Application-tp4963262p4963349.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

Aug. 22, 2017

Re: [Pharo-users] How do I get a list of all packages in the catalog with a 6.0 tag?

by Stephane Ducasse

You can use the Catalog Browser? In tools. Is it not what you are looking for? Stef On Mon, Aug 21, 2017 at 3:58 PM, H. Hirzel <hannes.hirzel(a)gmail.com> wrote: > Thank you! > > > "Produce a list of Pharo 6 catalog entries (tag: 'Pharo 6.0') in > markdown format" > > | catalog | > catalog := CatalogProvider default retrieveProjects select: [ :x | > (x at: 'repositoryUrl') = > 'http://smalltalkhub.com/mc/Pharo/MetaRepoForPharo60/main' ]. > > Transcript show: '# Pharo 6 catalog list'; cr. > > (catalog asSortedCollection: [ :a :b | (a at: 'name') < (b at: 'name') > ]) do: [ :entry | Transcript show: '## ', (entry at: 'name') ; cr; > show: (entry at: 'description'); cr;cr. > Transcript show: 'keywords: '. > (entry at: 'keywords') sorted do: [ :keyword | Transcript show: > keyword; space ]. > Transcript cr; cr]. > > Transcript show: '# Pharo 6 catalog list - description is missing'; cr. > > (catalog asSortedCollection: [ :a :b | (a at: 'name') < (b at: 'name') ]) > do: [:entry | (entry at: 'description') ifNil: [ Transcript show: '- > ', (entry at: 'name'); cr ] > ]. > > > --Hannes > > On 8/21/17, Pierce Ng <pierce(a)samadhiweb.com> wrote: >> On Mon, Aug 21, 2017 at 11:06:36AM +0200, H. Hirzel wrote: >>> What is the code snippet to get a list of all packages with a '6.0' >>> tag and their description? >> >> "CatalogProject availableRepositoryURLStrings" gives: >> >> #('http://smalltalkhub.com/mc/Pharo/MetaRepoForPharo60/main' >> 'http://smalltalkhub.com/mc/Pharo/MetaRepoForPharo30/main' >> 'http://smalltalkhub.com/mc/Pharo/MetaRepoForPharo40/main' >> 'http://smalltalkhub.com/mc/Pharo/MetaRepoForPharo50/main' >> 'http://www.squeaksource.com/MetacelloRepository') >> >> "CatalogProvider default retrieveProjects" gives an array of 456 items. >> Each >> item is a dictionary with a "repositoryUrl" key which matches one of the >> above >> strings. Therefore: >> >> CatalogProvider default retrieveProjects select: [ :x | >> (x at: 'repositoryUrl') = >> 'http://smalltalkhub.com/mc/Pharo/MetaRepoForPharo60/main' ] >> >> >>> In Squeak I would just bring up the halo menu, then open an inspector >>> on the Catalog Browser window and see what model is attached. >>> >>> How do I do this in Pharo these days? >> >> On Linux, shift-ctrl click the window, then from the menu select debug... >> inspect model. >> >> Pierce >> >> >> >

Aug. 22, 2017

Re: [Pharo-users] Where is the installation log? Installing FileMan into Pharo 6.0-60510, which is 6.1.

by Stephane Ducasse

FileSystem is much better than Fileman. Fileman is a library from the past from my point of view. On Mon, Aug 21, 2017 at 3:18 PM, H. Hirzel <hannes.hirzel(a)gmail.com> wrote: > 'WordMenu -> 'Tools' -> 'Transcript' :-) > > The Transcript window needs to be open. > > Then it shows > > ...RETRY->ConfigurationOfFileMan > ...RETRY->ConfigurationOfFileMan > gofer repository error: 'GoferRepositoryError: Could not access > http://www.squeaksource.com/MetacelloRepository/FileMan: > ZnHttpUnsuccessful: 404 Not Found'...ignoring > ...FAILED->ConfigurationOfFileManCould not resolve: > ConfigurationOfFileMan [ConfigurationOfFileMan] > > > I.e. there is no http://www.squeaksource.com/MetacelloRepository/FileMan > > > http://www.squeaksource.com/MetacelloRepository > > contains several > ConfigurationOfFileMan > files. > > The latest is http://www.squeaksource.com/MetacelloRepository/ConfigurationOfFileMan-mu.9… > > A newer version is needed in the repository > http://smalltalkhub.com/mc/Pharo/MetaRepoForPharo60/main > > enriched with the three methods > > #catalogDescription > #catalogContactInfo > #catalogKeywords > > mentioned in > > http://catalog.pharo.org/catalog/note-for-developers > > In addition three tests need to be fixed. > > --Hannes > > On 8/21/17, H. Hirzel <hannes.hirzel(a)gmail.com> wrote: >> The terminal window from which I started pharo 6.0-60510/6.1 is open. >> >> No stdout, stderr messages (Ubuntu 14.04) -- Squeak has them. >> >> I was also searching for stdout in the 'Settings browser'. >> >> On 8/21/17, Herby VojÄÃk <herby(a)mailbox.sk> wrote: >>> H. Hirzel wrote: >>>> Hello >>>> >>>> I wanted to install the FileMan package through the catalog into Pharo >>>> 6.0-60510 (a.k.a 6.1). >>>> >>>> FileMan is library used by Cuis Smalltalk and also available for >>>> other Smalltalk dialects - http://wiki.squeak.org/squeak/6333. >>>> >>>> There is a FileMan entry in the catalog, but no description and 6.0 >>>> compatibility tag. So I tried that installation. >>>> >>>> For two seconds then there was a note at the lower left corner of the >>>> screen that there was an installation problem. >>>> >>>> I wonder where I do find the installation log? This is necessary in >>>> such cases in order to spot the problem. >>> >>> I would look into stdout, stderr (in Windows they are saved to file) and >>> .changes file. >>> >>>> >>>> However in this case the solution was to go for the README of >>>> >>>> https://github.com/mumez/FileMan >>>> >>>> It has >>>> >>>> >>>> Gofer it >>>> url: 'http://squeaksource.com/MetacelloRepository'; >>>> package: 'ConfigurationOfFileMan'; >>>> load. >>>> (Smalltalk at: #ConfigurationOfFileMan) perform: #load. >>>> >>>> >>>> Then 13 out of 16 tests pass. >>>> >>>> Regards >>>> >>>> Hannes >>>> >>> >>> >>> >> >

Aug. 22, 2017

Re: [Pharo-users] Teapot and Mustache in Pharo 6?

by Stephane Ducasse

You have a also mustaside a bridge between mustache and seaside. On Mon, Aug 21, 2017 at 5:52 PM, H. Hirzel <hannes.hirzel(a)gmail.com> wrote: > Hello > > The TeaPot documentation [1] references Mustache [2] in the section > > 4.1. Response Transformers [3] > > There is an example for a JSON transformation but none for Mustache. > > Where do I find some information how to use Mustache together with Teapot? > > Regards > Hannes > > > > > [1] > https://ci.inria.fr/pharo-contribution/job/EnterprisePharoBook/lastSuccessf… > > [2] https://ci.inria.fr/pharo-contribution/job/EnterprisePharoBook/lastSuccessf… > > > [3] The responsibility of a response transformer is to convert the > output of the action block to HTML and to set the content-type of the > response. Some response transformers require external packages (e.g., > NeoJSON, STON, Mustache). > > [4] Adapted example > > TLWebserver teapot GET: '/jsonlist' -> #(1 2 3 4); output: #json. >

Aug. 22, 2017

Glorp: Is there some way to do insert-or-update?

by Herby VojÄÃk

Hello! Is there some way to do insert-or-update operation (that is, roughly, to be able to register an object with possibly existing primary key(s) and let it be written regardless? Thanks, Herby P.S.: Use case - I want to have log of USER-DEVICE pairing with last timestamp and 'enabled' field that would be set to false once push notification fails - but set to true once user actually logs from the device (again). I don't want to have many historical records, so I want to have USER+DEVICE to be a composed primary key. Which means it is inserted first time, but possibly updated later.

Aug. 22, 2017

Re: [Pharo-users] Where do I find a Pillar syntax summary?

by Stephane Ducasse

I do not know about a stylesheet. Stef On Tue, Aug 22, 2017 at 9:25 AM, H. Hirzel <hannes.hirzel(a)gmail.com> wrote: > Hello > > There is a tutorial for the Pillar document writing system [1]. The > Pharo 6 catalog entry shows that the Pillar syntax goes back to the > Pier CMS syntax of Lukas Renggli [2]. > > There is a syntax summary for the Pier CMS > > http://www.piercms.com/doc/syntax [3] > > I assume that most this still applies for Pillar? > But I can imagine that there have here been updates / changes / extensions. > > I am looking for a Pillar syntax summary ("cheat sheet"). > Is this available somewhere? > > Kind regards > > Hannes > > > > > [1] https://ci.inria.fr/pharo-contribution/job/EnterprisePharoBook/lastSuccessf… > > [2] Pharo 6.1 catalog entry for Pillar > > Pillar is a wiki-like syntax, its document model, a parser for it, and > a set of exporters (e.g., HTML, LaTeX, Markdown...). Pillar is > primarily used as the wiki syntax behind the *Pier > CMS>http://piercms.com*. Pillar is also being used to write books: > e.g., *the Enterprise Pharo book>http://books.pharo.org/*. > > The original creator of Pillar (formerly known as ''the syntax behind > the Pier CMS'') is Lukas Renggli. Nevertheless, *Damien > Cassou>damien.cassou(a)inria.fr* is now the maintainer. The website is > at *http://www.smalltalkhub.com/#!/~Pier/Pillar*. Issues should be > reported to *https://github.com/pillar-markup/pillar/issues* > > > [3] http://wiki.squeak.org/squeak/3700 has some information about Pier. > It refers to a Smallwiki mailing list which is active. > > https://www.list.inf.unibe.ch/pipermail/smallwiki/ > > e.g. https://www.list.inf.unibe.ch/pipermail/smallwiki/2016-November/008051.html > with an announcment 'Pier3 with latest Pillar' >

Aug. 22, 2017