March 2014 - Pharo-dev - lists.pharo.org

TWM and 3.0: icons/themes, UpdatingMenuMorph
by phil＠highoctane.be March 10, 2014

March 10, 2014

I am trying to get TWM to work in 3.0 I use the Metacello config flag "trick" to make it load 2.x things. Now, things do load but there is the deprecation warnings about the way icons are handled. e.g. deleteSnapshotIcon ^ dock theme smallDeleteIcon. gives a warning. I looked into the code and now, we are supposed to do: Smalltalk ui smallDeleteIcon. Well, I changed the things that needed to be changed and then hit: newMenu: aSelector icon: aForm help: aString ^ MenuItemMorph new contents: ''; subMenu: (UpdatingMenuMorph new updater: self updateSelector: aSelector); icon: aForm; setBalloonText: aString. Where Updating MenuMorph appears to be gone in 3.0 What am I supposed to use as a replacement? TIA Phil

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Re: [Pharo-dev] [Pharo-business] [ANN] DBPedia: Query Wikipedia from Pharo
by Alexandre Bergel March 9, 2014

March 9, 2014

Iâve just tried and it works pretty well! Impressive! Below I describe a small example that fetches some data about the US Universities from DBPedia and visualize them using Roassal2. Pick a fresh 3.0 image. First, you need to load HernÃ¡n work, Svenâs NeoJSON, and Roassal 2 (If you are using a Moose Image, there is no need to load Roassal2 since it is already in): -=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Gofer it smalltalkhubUser: 'SvenVanCaekenberghe' project: 'Neo'; package: 'ConfigurationOfNeoJSON'; load. ((Smalltalk at: #ConfigurationOfNeoJSON) load). Gofer it smalltalkhubUser: 'hernan' project: 'DBPedia'; package: 'DBPedia'; load. Gofer it smalltalkhubUser: 'ObjectProfile' project: 'Roassal2'; package: 'ConfigurationOfRoassal2'; load. ((Smalltalk at: #ConfigurationOfRoassal2) loadBleedingEdge). -=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Using Roassal2, I was able to render some data extracted from dbpedia: -=-=-=-=-=-=-=-=-=-=-=-=-=-=-= | map locations rawData rawData2 rawData3 | map := RTMapBuilder new. map countries: #('UnitedStates' 'Canada' 'Mexico'). map color: Color veryVeryLightGray. rawData := DBPediaSearch universitiesInUS. rawData2 := ((NeoJSONReader fromString: rawData) at: #results) at: #bindings. rawData3 := rawData2 select: [ :d | d keys includesAll: #('label' 'long' 'lat') ] thenCollect: [ :d | { (Float readFrom: ((d at: 'long') at: 'value')) . (Float readFrom: ((d at: 'lat') at: 'value')) . (d at: 'label' ) at: 'value' } ]. locations := rawData3. locations do: [ :array | map cities addCityNamed: array third location: array second @ array first ]. map cities shape size: 8; color: (Color blue alpha: 0.03). map cities: (locations collect: #third). map scale: 2. map render. map view openInWindowSized: 1000 @ 500. -=-=-=-=-=-=-=-=-=-=-=-=-=-=-= This is what you get: This is a small example. Naturally, adding popup for locations is trivial to add. I have described this on our Facebook page: https://www.facebook.com/ObjectProfile/photos/a.341189379300999.82969.34054… HernÃ¡n, since SPARQL is a bit obscure, it would be great if you could add some more example, and also, how to parametrize the examples. For example, now we can get data for the US, how to modify your example to get them for France or Chile? Cheers, Alexandre On Mar 2, 2014, at 3:43 PM, HernÃ¡n Morales Durand <hernan.morales(a)gmail.com> wrote: > I have uploaded a new configuration so you can query the english Wikipedia dataset from Pharo 3 using SPARQL. Some examples follow: > > 1) Retrieve in JSON movies from the beautiful Julianne Moore: > > | jsonResults | > jsonResults := DBPediaSearch new > setJsonFormat; > timeout: 5000; > query: 'SELECT DISTINCT ?filmName WHERE { > ?film foaf:name ?filmName . > ?film dbpedia-owl:starring ?actress . > ?actress foaf:name ?name. > FILTER(contains(?name, "Julianne")) > FILTER(contains(?name, "Moore")) > }'; > execute > > To actually get only the titles using NeoJSON: > > ((((NeoJSONReader fromString: jsonResults) at: #results) at: #bindings) > collect: [ : entry | entry at: #filmName ]) collect: [ : movie | movie at: #value ] > > > 2) Retrieve in XML which genre plays those crazy Dream Theater guys : > > DBPediaSearch new > setXmlFormat; > setDebugOn; > timeout: 5000; > query: 'SELECT DISTINCT ?genreLabel > WHERE { > ?resource dbpprop:genre ?genre. > ?resource rdfs:label "Dream Theater"@en. > ?genre rdfs:label ?genreLabel > FILTER (lang(?genreLabel)="en") > } > LIMIT 100'; > execute > > More examples are available in DBPediaSearch class side. You can install it from the Configuration Browser. > If you want to contribute, just ask me and you will be added as contributor. > Best regards, > > HernÃ¡n > > _______________________________________________ > Pharo-business mailing list > Pharo-business(a)lists.pharo.org > http://lists.pharo.org/mailman/listinfo/pharo-business_lists.pharo.org -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

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Git & MS Windows path length restriction
by btc＠openinworld.com March 9, 2014

March 9, 2014

I started looking into Pharo Case 13030 "Many tests failing in MetacelloValidation Job on Jenkins" and even before getting into it, I've hit a stumbling block on Windows 7 with its pathName length restriction of 259 characters. I managed to isolate the problem as follows... MetacelloPlatform current downloadFile: 'https://github.com/dalehenrich/metacello-work/zipball/master' to: 'C:\tmp\github-dalehenrichmetacelloworkmaster.zip'. zip := ZipArchive new readFrom: 'C:\tmp\github-dalehenrichmetacelloworkmaster.zip'. zip extractAllTo: 'C:\tmp\unzippedByPharo' asFileReference. which produces the error "FileDoesNotExist: File @ C:\tmp\unzippedByPharo\dalehenrich-metacello-work-96e07b1\repository\Metacello-TestsMCB.package\MetacelloScriptingStandardTestHarness.class\instance\validateExpectedConfigurationClassName.expectedConfigurationVersion.expectedConfigurationRepository.expectedBaselineClassName.expectedBaselineVersion.expectedBaselineRepository..st" where the #size of that filename is 354 characters. Trying to drill into github-dalehenrichmetacelloworkmaster.zip from Windows Explorer produces error "The Compresses (zipped) file is invalid." However using 7Zip [1] I can extract the file so that _all_ files appear in the hierarchy, so it seems 259 is not a hard limit, and indeed that limit is imposed by the Windows Shell, since NTFS can have a path length of ~32K [2]. Operation of 7Zip was verified by: * From Pharo: zip members size --> 6007 * For cmd.exe: dir /b /s > dir.txt Open dir.txt into Notepad++ --> 6007 (after dir.txt line removed) Also Windows Explorer <Properties> reports (5277 files + 730 folders) = 6007 [1] www.7-zip.org [2] http://stackoverflow.com/questions/265769/maximum-filename-length-in-ntfs-w… Now presuming its reasonable for the working directory to have 30 characters, using... histogram := (zip members collect: [ :member | | mySize | mySize := member fileName size. (mySize >=230) ifTrue: [Transcript crShow: mySize printString , '-->' , member fileName printString ]. mySize. ]) asBag. produces... 306-->'dalehenrich-metacello-work-96e07b1/repository/Metacello-TestsMCB.package/MetacelloScriptingStandardTestHarness.class/instance/validateExpectedConfigurationClassName.expectedConfigurationVersion.expectedConfigurationRepository.expectedBaselineClassName.expectedBaselineVersion.expectedBaselineRepository..st' 252-->'dalehenrich-metacello-work-96e07b1/repository/Metacello-ToolBox.package/MetacelloToolBox.class/class/createBaseline.for.repository.requiredProjects.packages.dependencies.includes.files.repositories.preLoadDoIts.postLoadDoIts.supplyingAnswers.groups..st' 257-->'dalehenrich-metacello-work-96e07b1/repository/Metacello-ToolBox.package/MetacelloToolBox.class/class/modifyBaselineVersionIn.repository.requiredProjects.packages.dependencies.includes.files.repositories.preLoadDoIts.postLoadDoIts.supplyingAnswers.groups..st' 259-->'dalehenrich-metacello-work-96e07b1/repository/Metacello-ToolBox.package/MetacelloToolBox.class/class/modifyVersion.section.for.repository.requiredProjects.packages.dependencies.includes.files.repositories.preLoadDoIts.postLoadDoIts.supplyingAnswers.groups..st' 262-->'dalehenrich-metacello-work-96e07b1/repository/Metacello-ToolBox.package/MetacelloToolBox.class/instance/addSection.repository.requiredProjects.packages.dependencies.includes.files.repositories.preLoadDoIts.postLoadDoIts.supplyingAnswers.groups.versionSpecsDo..st' 265-->'dalehenrich-metacello-work-96e07b1/repository/Metacello-ToolBox.package/MetacelloToolBox.class/instance/modifySection.repository.requiredProjects.packages.dependencies.includes.files.repositories.preLoadDoIts.postLoadDoIts.supplyingAnswers.groups.versionSpecsDo..st' 278-->'dalehenrich-metacello-work-96e07b1/repository/Metacello-ToolBox.package/MetacelloToolBox.class/instance/modifySection.sectionIndex.repository.requiredProjects.packages.dependencies.includes.files.repositories.preLoadDoIts.postLoadDoIts.supplyingAnswers.groups.versionSpecsDo..st' So... * Are there many users of Smalltalk/git on Windows * What is the design plan for dealing with the long path name? I guess the change to using the unicode functions to get the 32K pathName length would need to happen in the VM. I wonder if instead of Smalltalk-git working with individual files in the file system, it might work directly from the a zip file. It seems git can be configured to accept zip files and unpack them before pushing into its repository [3]. Some benefits of this: * Avoid this problem on Windows * Accessing one stream when loading a from git repository might be faster than accessing many individual files * Git sees one file per method, but users see one file per package. * Git-zip-files might act more like familiar mcz files - that could be copied around the same - or even provide some convergence if an mcz held a file per method rather than a single source.st file. [3] http://tante.cc/2010/06/23/managing-zip-based-file-formats-in-git/ Interested in you thoughts. cheers -ben

2 1

Smalltalk tools: explore failing in 3.0
by phil＠highoctane.be March 9, 2014

March 9, 2014

If I do inspect Smalltalk tools it works. But explore crashes. How is that? Phil

3 4

Roassal3D not working in 3.0
by phil＠highoctane.be March 8, 2014

March 8, 2014

I loaded Roassal3D in Pharo3.0 but... no FormCanvas>>createPath? It looks like createPath moved to AthensCanvas. Are we only going to be able to use AthensCanvas and have no more pure Form bitmap work? Is there a Roassal3D version working on (latest) 3.0? Phil

2 2

Broken Form>>dominantColor in 3.0
by Hilaire Fernandes March 8, 2014

March 8, 2014

Hello, Problem described there, https://pharo.fogbugz.com/f/cases/13057/DominantColor-brokem It seems to be related to BitBlt, combinationRule #33 Any idea? Thanks Hilaire -- Dr. Geo http://drgeo.eu

1 0

Coral (again)
by phil＠highoctane.be March 8, 2014

March 8, 2014

I would like to know where to look to get a "valid"/"best" version of Coral to use/work on. I am going to need to work in an assignment where there are a number of scripting things to do and I'd like to give Pharo a shot. I'd like to be able to use Coral, as I liked the video about it and how it worked. I saw that Camillo has it on GitHub. TIA for the pointers. Phil

2 1

Re: [Pharo-dev] Coral (again)
by Stephan Eggermont March 7, 2014

March 7, 2014

I would be strongly interested in using Coral as a replacement for puppet/chef/salt Stephan

1 0

12911 Tests-failing-in-fresh-image-MetacelloRepositorySqueakCommonTestCase
by btc＠openinworld.com March 7, 2014

March 7, 2014

Can someone with a Mac review... https://pharo.fogbugz.com/f/cases/edit/12911/Tests-failing-in-fresh-image-M… Its low priority but also simple - just an update for three tests to deal with difference on Windows platform . cheers -ben

2 1

Re: [Pharo-dev] Support for git in Pharo
by Stephan Eggermont March 7, 2014

March 7, 2014

Max wrote >In my opinion there are other factors, like readability, maintenance etc, that are maybe more important than speed. Iâm not totally convinced. The readability from the outside is limited by having one file per method. Mainstream tooling assumes one file per class. The emails from github to this list are a good example of the usability problems that leads to. I donât want to suggest switching to a larger granularity, as that leads to another set of problems. My point was more if we could mostly avoid the source view, and directly work with the archive. Why is working with single files fastest? Stephan

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