- Pharo-users - lists.pharo.org

Examples of bad code
by Oleksandr Zaytsev Nov. 13, 2018

Nov. 13, 2018

Hello, Do you know of some good examples of code that is unreadable because of the bad and inconsistent naming? I want to show some motivating example in my thesis about the aspects of software naturalness through the generation of identifier names. I'm sure that Pharo has many bad code inside, but this has to be something 1. From the real project written by experienced developers or a nice community (not some toy example or a code of bad developers) 2. With identifier names so bad that 2-3 chunks of code are enough to demonstrate how incomprehensible this code is. I need it to prove the point that 1. Bad naming can really harm the readability 2. Bad naming is not just a result of carelessness and lack of experience. Bad names often appear in successful projects and are introduced by experienced developers as a result of software evolution (many people write and rewrite the same code many times introducing inconsistencies and failing to understand each other's intentions and different parts of the system). Do you know some good examples of bad code from PolyMath, Seaside, Moose etc.? Oleks

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ToManyRelationSlot variant with an ordered collection?
by Tudor Girba Nov. 13, 2018

Nov. 13, 2018

Hi, The current implementation of ToManyRelationSlot is based on a RelationSet which holds the items in a Set. Is there an implementation that holds the items in an ordered collection? Cheers, Doru -- www.feenk.com "Some battles are better lost than fought."

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Canonical download location for Pharo VMs
by Esteban Maringolo Nov. 13, 2018

Nov. 13, 2018

What is the canonical repository/ci to download the latest VM for Pharo? I'm trying to get pharo launcher to launch a 32 bit image in Windows, but it complains it can't determine the image version, so I'm trying to download the latest 32 bit VM for Windows to launch it manually, but https://files.pharo.org/vm/ doesn't have anyting updated, and links to a Jenkins that seems abandoned, same thing for https://github.com/pharo-project/pharo-vm, and https://github.com/OpenSmalltalk/opensmalltalk-vm/ doesn't link to a successful build. Any hints on how to download the proper VM for windows 32 bit or successfully configure Pharo-Launcher to determine itself how to do it? Thank you. Esteban A. Maringolo

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OpenGL minimum working example?
by HernÃ¡n Morales Durand Nov. 13, 2018

Nov. 13, 2018

Hi. I tried to get an OpenGL MWE from https://github.com/ronsaldo/uffi-opengl in both Windows 8.1 and MacOS without luck. What I tried so far is to render a simple figure in a new window, adding this method to UFFIOpenGLOffscreenSamples: >>sample2 " self new sample2 " | context gl fb | context := UFFIOpenGLContext new. gl := context gl. fb := context offscreenBufferExtent: 300@300. context asCurrentDo: [ fb activate. gl " loadIdentity;" clear: GL_COLOR_BUFFER_BIT; begin: GL_QUADS; color3f_red: 1.0 green: 0.0 blue: 0.0; vertex3f_x: 0.0 y: 0.0 z: 0.0; vertex3f_x: 0.5 y: 0.0 z: 0.0; vertex3f_x: 0.5 y: 0.5 z: 0.0; vertex3f_x: 0.0 y: 0.5 z: 0.0; end; flush ]. fb asForm asMorph openInWindow. However the result is that VM hangs in both platforms. Any advice what I'm missing? Cheers, HernÃ¡n

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Re: [Pharo-users] OpenGL minimum working example?
by Tomohiro Oda Nov. 13, 2018

Nov. 13, 2018

Hello Hernan, I have partially working code at http://smalltalkhub.com/#!/~tomooda/Jun4Pharo My code still have two problems that * depending on resolution, projection matrix can't be properly set, and * it freezes pharo when switching to fullscreen Best Regards, --- tomo

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what must be instead of the ??
by Roelof Wobben Nov. 10, 2018

Nov. 10, 2018

Hello, I try to solve a adventofcode challenge where I must find out when santa is first at the basement. the floor is there -1. So I thought I use a while loop like this : santaFloorOnBasement Â Â Â "calculates which step take Santa to the basement" Â Â Â Â | index| Â Â Â Â index := 1. Â Â Â Â ??? when: (floor >=0 ) do: Â Â Â Â Â Â Â [ floor := (input at: index = '(' ) Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â ifTrue: [ floor + 1 ] Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â ifFalse: [ floor - 1 ]. Â Â Â Â Â Â Â Â index := index + 1 ]. but I cannot find out what must be instead of the ?? index is the index of the string which has to start with a 1. floorÂ and input are both instance variables. floor contains the current floor and input the input of the challenge. Can someone help me figure this out so the next time I can do this on my own. Roelof

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using latest iceberg with Pharo 6.1 / 7.0
by Sanjay Minni Nov. 8, 2018

Nov. 8, 2018

If I want to use iceberg then should I first update pharo image as mentioned on github iceberg homepage (https://github.com/pharo-vcs/iceberg) for 6.1: should I run the script as given on the homepage or is there an easier way to upgrade (i.e. some UI - point and click) ? for 7.0: its mentioned to clone iceberg and pull changes - i run iceberg ... - dialog opens:repositories - there is a line "iceberg ... local repositories missing". how should i proceed from here ? I tried as follows (not sure if that is right - double clicked on iceberg ... dialog opened: "working copy of iceberg" ... all lines have "local repository missing" - clicked icon Repair - in the dialog - selected github.com, owner:pharo-vcs, project:iceberg as per below <http://forum.world.st/file/t368721/iceberg01.jpg> - then got status "uptodate" and did a fetch ... finally dialog as below <http://forum.world.st/file/t368721/iceberg02.jpg> ok ... then what do i do next ? regards Sanjay ----- --- Regards, Sanjay -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

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glamorous toolkit - moldable method coder
by Tudor Girba Nov. 8, 2018

Nov. 8, 2018

Hi, We design the Glamorous Toolkit to enable moldable development. This is a new take on programming that is predicated on the idea that tools must adapt to the context of the software system in order to be effective. Until now, we mainly applied moldability to how we inspect/debug/search existing code and objects. The first incarnation of GT, the tools that are present in the Pharo distribution, already showed how moldable development can provide dramatic productivity gains, especially when combined with examples. To make the experience complete, more recently we started to build moldability into Coder, the new set of tools for creating code. The first tool we created is Method Coder, an editor for a single method. This is a working editor that has multiple new features, one of which being that it can be collapsed to only see the method pattern (header), and that the body is editable without affecting the method pattern. This editor is versatile and can be used in various places, such as class coder or a search: https://twitter.com/feenkcom/status/1058003761262743552 Yesterday, we reached a new milestone. In the example below we see how adding/removing <gtExample> to a method changes the shape of the method Coder dynamically without requiring a save. In our case, the changes affect: the example status label, the in-place example expanding toggle, and the run button. https://twitter.com/feenkcom/status/1060290294749560833 This just an example that is specific to the examples engine, but it shows how typing can be linked live to all details that make the surrounding tool. Of course, the mechanism behind the scene is available for you to adapt the editor to your code. This is a whole new uncharted world, and we think there is a great deal of potential in this area. Have fun, The feenk team -- www.feenk.com âHow do you feenk today?"

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New convenience method: ZnClient>>forJsonREST
by Sven Van Caekenberghe Nov. 7, 2018

Nov. 7, 2018

Hi, I added a new convenience method to Zinc HTTP Components: ZnClient>>forJsonREST. This configures a ZnClient (HTTP client) to talk to standard JSON REST web services. Here are a couple of examples: ZnClient new forJsonREST; get: 'https://jsonplaceholder.typicode.com/users'. What #forJsonREST does is 3 things: set the 'Accept' header to 'application/json', install a #contentReader that parses incoming JSON as well as a #contentWriter that generates JSON. ZnClient new systemPolicy; forJsonREST; url: 'https://jsonplaceholder.typicode.com/posts'; contents: { #foo->1. #bar->2 } asDictionary; post. As you can see, the full ZnClient API can be combined when needed. ZnClient new forJsonREST; post: 'https://jsonplaceholder.typicode.com/posts' contents: (NeoJSONObject new foo: 1; bar: 2; yourself). #post:contents: combines separate #url: #contents: and #post message. #forJsonREST uses NeoJSON[Object|Writer] if found, else STONJSON. If both are missing, this results in an error. ZnClient new systemPolicy; forJsonREST; url: 'http://easy.t3-platform.net/rest/geo-ip'; queryAt: #address put: '81.83.7.35'; get. Finally, here is a more sophisticated example, doing a DNS request over HTTPS: ZnClient new systemPolicy; beOneShot; forJsonREST; accept: 'application/dns-json'; url: 'https://cloudflare-dns.com/dns-query'; queryAt: #name put: 'stfx.eu'; queryAt: #type put: #AAAA; get. Note that in most cases, you will configure one client to a specific endpoint and keep on reusing it. At one point in time it might be good to #close the client (although that happens on finalise as well). For single requests, you can use #beOneShot. All this can be found in #bleedingEdge (HEAD). There are unit tests as well. Sven

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[ANN] Iceberg v1.3.1
by Cyril Ferlicot Nov. 7, 2018

Nov. 7, 2018

Hello! This week we are releasing the version v1.3 of Iceberg. (https://github.com/pharo-vcs/iceberg/releases/tag/v1.3.0 +https://github.com/pharo-vcs/iceberg/releases/tag/v1.3.1) This version will be available after we merge this PR: https://github.com/pharo-project/pharo/pull/1951 This release contains some new features such as the support of self hosted gitlab, integration with github, etc. It also contains multiple bug fixes, cleanups and enhancements. On the CI part, Guille made the Appveyor build green! This will increase the stability of the windows support. Thanks to all contributors. Enjoy! Full changelog: Features #1021 Self hosted gitlab support #1027 Improved new tag dialog to generate semantic versionning tags #1044 Show a button "View on Github" when creating a PR #1008 Add "create branch from GitHub issue" option #1048 Add commands to open remotes on Github #1010 Add menu entry in extras to force calculate diff Bug corrections #975 Metacello asks too many times what to install when there are conflicting versions #980 Iceberg should Identify better the packages and the normal files #982 The Edit Project should have a Warning if it will affect the packages #986 Iceberg does not realize changes in extended classes #999 Pulling and pushing to a gitolite server asks password #984 Conversion to Tonel generates corrupted .properties #1041 Filter in repository view don't work with capital letters #1019 Metacello Integration leaves Monticello leftover repositories #859 Creating a branch and pushing does not sets the upstream #1043 Packages starting with lowercase not recognized #991 Error on right click in the project editon wizard #775 Reviewing a PR is broken #1036 Debugger if we try to merge without selecting a branch #1064 Fix failing tests regarding clean code in Pharo Enhancements #988 Iceberg should load the packages in a single MCLoader (This will make the loads of packages atomic) #1001 Use "instance creation" instead of "instance-creation" for method protocol name #1004 Use displayScaleFactor in UI #977 Add ToolTip help to the Commands #1030 Better support for binary files #1034 SSH passphrase is now hidden Cleanups #1018 Iceberg UI relies on deprecated classes from Spec and Commander #1051 Clean useless huge hierarchy in Github plugin UI Infrastructure Enhancements #1023 Fix CI for windows -- Cyril Ferlicot https://ferlicot.fr

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