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The baseline complexity of tiny big projects...
by Tim Mackinnon May 20, 2019

May 20, 2019

Iâm wondering if others might spot a better way of handling this - but with Exercism, Iâve got 100 exercises to manage. An Exercise is a TestCase and 1 or more solution classes (normally 1, but sometimes several). I had initially used Tags to manage this, there was an ExercismExercise package, and then a tag for each exercise. This was quite neat and tidy - however its flawed as it doesnât allow extension methods on the tags (they live on the parent package - which is problematic as in use, the exercises are loaded one by one from tonel files as the student progresses), it also does let you critique an individual exerciseâ¦ so essentially they arenât sub-projects and I was recommended to promote them to proper Packages. This was all quite trivial to support with tags but now I have to grapple with the BaselineOf for my project (to manage all these exercises in development mode - where you want to load them all, run all their tests, and add to them etc). As each exercise depends on an ExercismTestCase - I have a single pre-req for each one, and then, in development mode, I have to load all 100 of them. The best I came up with was the following - but its a hell of a lot more complicated than the previous tag solution where effectively the owning package let me do this once (and membership of that package automatically gave a tag this pre-req and containment behaviour). So instead I have to do the following (and Iâm left wondering if Iâm missing some easier way). The bold bits are where Iâve tried to do something to try and workaround this - its the array of packageNames that is a bit distasteful to me, and it feels a lot like I have to express the same information twice - one in the iceberg window to add all these packages, and then again in the method of names, to set the identical pre-req on each of themâ¦ I find in this respect, Iâm missing Envy developer here? Anyone have some better suggestions? Or do we need to try and make the tools better? Tim baseline: spec <baseline> spec for: #common do: [ self setUpExercisesFor: spec. spec package: 'ExercismPharo70'; "Pharo override/patch methods" package: 'ExercismTools' with: [ spec requires: #('ExercismPharo70') ]; package: 'ExercismTests' with: [ spec requires: #('ExercismTools' 'ExercismMocking'), self exerciseTestPackageNames ]; package: 'ExercismSystemTests' with: [ spec requires: #('ExercismTests') ]; package: 'ExercismDev' with: [ spec requires: #( 'OSProcess' "For shelling out to configlet" 'Ring2' "For mentoring support of shadow browsing" 'ExercismTools' ), self exercisePackageNames, #('Exercism' 'ExercismTests' 'ExercismSystemTests')]; group: 'default' with: #('ExercismTools' 'Exercise@Welcome'); group: 'dev' with: #('ExercismDevâ)]. setUpExercisesFor: spec self class exercisePackageNames, self class exerciseTestPackageNames do: [ :name | spec package: name with: [ spec requires: #('ExercismTools') ] ]. exercisePackageNames "Answer the list of exercise package names (as we don't yet have proper projects)" ^ #('Exercise@Acronym' 'Exercise@Allergies' 'Exercise@Anagram' 'Exercise@ArmstrongNumbers' 'Exercise@AtbashCipher' 'Exercise@Binary' 'Exercise@Bowling' 'Exercise@Clock' 'Exercise@CollatzConjecture' 'Exercise@Darts' 'Exercise@Diamond' 'Exercise@Die' 'Exercise@Etl' 'Exercise@Forth' 'Exercise@GradeSchool' 'Exercise@Grains' 'Exercise@Hamming' 'Exercise@HelloWorld' 'Exercise@HighScores' 'Exercise@IsbnVerifier' 'Exercise@Isogram' 'Exercise@Leap' 'Exercise@Luhn' 'Exercise@MatchingBrackets' 'Exercise@Pangram' 'Exercise@Proverb' 'Exercise@Raindrops' 'Exercise@ResistorColorDuo' 'Exercise@ReverseString' 'Exercise@RobotSimulator' 'Exercise@RomanNumerals' 'Exercise@SecretHandshake' 'Exercise@Sieve' 'Exercise@SpaceAge' 'Exercise@SumOfMultiples' 'Exercise@Tournament' 'Exercise@TwelveDays' 'Exercise@TwoFer' 'Exercise@Welcome' 'Exercise@WordCount')

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unable to parse "JOIN" clause with PetitSQLiteGrammar
by matteob8 May 18, 2019

May 18, 2019

Good evening, I'm working with "PetitSQLParser" on Pharo 7.0.3 and I've some trouble parsing a "JOIN" query using the class "PetitSQLiteGrammar". More specifically the code is: |identSQL| identSQL:=PetitSQLiteGrammar new. identSQL parse: 'SELECT Code FROM Code_year INNER JOIN Open USING(Code)' ----> "a PP2Failure: 'end of input expected'" Removing "(ECR)" the string get parsed in this way: |identSQL| identSQL:=PetitSQLiteGrammar new. identSQL parse: 'SELECT Code FROM Code_year INNER JOIN Open USING' ----> "an Array(an Array(nil nil an Array(an Array(an Array('SELECT' nil #(#('Code ' nil)) an Array('FROM' an Array(#(#(nil 'Code_year') nil nil) an OrderedCollection(#(#(nil 'INNER' 'JOIN') #(#(nil 'Open') #(nil 'USING') nil) nil)))) nil nil)) nil nil)))" Where is the problem with the first code? Why does the second code get parsed, instead of throwing an error? Is it correct to get all these "nil" objects? Have anyone some suggestion about where I could find information on this issue? Thanks, Matteo -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

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Bloc of code in tiers programming language
by Hilaire May 18, 2019

May 18, 2019

Hi, We, Smalltalkers, use bloc of code as easily as we breathe air. I am writing an article on Smalltalk programming for a French mathematics teachers magazine. To illustrate the simplicity of Smalltalk, I would like to compare how the bloc of code 'f' and 'df' below will be implemented in Javascript and Python: f := [ :x | x cos + x ]. df := [ :x | (f value: x + 1e-8) - (f value: x) * 1e8]. Here f is a way to implement a function and df its derivate. Do some of you knows how it will be written in Javascript and Python with their own ad-hoc anonymous function? Thanks Hilaire -- Dr. Geo http://drgeo.eu

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can I do this with a stream or a format
by Roelof Wobben May 17, 2019

May 17, 2019

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[ANN] Next Pharo Sprint: May 24
by Marcus Denker May 17, 2019

May 17, 2019

We will organize a Pharo sprint / Moose dojo May 24, starting at 10:00am. (Local Time Paris). Goals of this sprint: - Pharo 8: Fix issues from tracker https://github.com/pharo-project/pharo/issues Remote Sprint: Remotely, you can join us on Discord. During the sprint, we synchronize local and remote Pharo sprinters: http://pharo.org/contribute-events We have added a Board to coordinate the work: https://github.com/orgs/pharo-project/projects/9 Known Local Sprint meetings Lille/France: It will be at the Inria Lille, Building B, third floor (RMoD offices). As the building is not open to the public, please contact us before if you plan to come

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Small query about ZnClient post - with "; " form values
by Tim Mackinnon May 17, 2019

May 17, 2019

I was trying to automate posting some values to a website (I would use Stfx.eu but it doesnât do syntax highlighting and only seems to work for quite small amounts). Anyway the following code always seems to trim values that have a ; in them - and Iâm wondering if Iâm missing something - or if its the endpoint that has an issue (although curl seems to work fine). content := 'hello world; hello'. ZnClient new systemPolicy; beOneShot; url: 'http://dpaste.com/api/v2/'; formAt: 'title' put: 'my; title'; formAt: 'syntax' put: 'smalltalk'; formAt: 'expiry_days' put: '5'; formAt: 'content' put: content; post. Tim

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Zinc - multipart forms query
by Ben Coman May 17, 2019

May 17, 2019

We are trying to replicate the following in Pharo... $ echo "hello; world" | curl -s -F "syntax=smalltalk" -F "content=<-" http://dpaste.com/api/v2/ like this... url := ZnClient new logToTranscript; systemPolicy; beOneShot; url: 'http://dpaste.com/api/v2/'; formAt: 'syntax' put: 'smalltalk'; formAt: 'content' put: 'hello; world'; post. Curl produces... "hello; world" http://dpaste.com/2Y15WGY but Zinc produces only... "hello" http://dpaste.com/28E974Y The difference is apparent on the wire... With curl... [image: image.png] With Zinc... [image: image.png] The curl manpage says... -F, --form <name=content> For HTTP protocol family, this lets curl emulate a filled-in form in which a user has pressed the submit button. This causes curl to POST data using the Content-Type multipart/form-data according to RFC 2388. So we've used multipart forms elsewhere already... https://github.com/exercism/pharo-smalltalk/blob/4a88c397/dev/src/ExercismT… <https://github.com/exercism/pharo-smalltalk/blob/4a88c397e550f1319b7be4dbff…> https://github.com/exercism/pharo-smalltalk/blob/4a88c397/dev/src/ExercismT… <https://github.com/exercism/pharo-smalltalk/blob/4a88c397e550f1319b7be4dbff…> https://github.com/exercism/pharo-smalltalk/blob/9c6b91aaf/dev/src/Exercism… <https://github.com/exercism/pharo-smalltalk/blob/9c6b91aa9fd10ae1efdfa779e0…> https://github.com/exercism/pharo-smalltalk/blob/0e0bd82ed/dev/src/Exercism… <https://github.com/exercism/pharo-smalltalk/blob/0e0bd82ed74c9966d2375d9392…> so I'm sure we can achieve what we want, just curious if there might be any convenience methods that could be used similar to the examples given on the rest of curl's "-F" description. Or if there could be? Curl examples are often used for reference by APIs ( http://dpaste.com/api/v2/) and a close map between curl and Zinc would be really great. cheers -ben P.S. I even wonder if a ZnCurl would be useful that parsed curl strings. This would firstly provide ease of use for newcomers, and secondly define how to map through to native Zinc methods.

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Pharo Launcher could select newly created image (to be played) by default
by Christopher Fuhrman May 17, 2019

May 17, 2019

I posted a feature request at https://github.com/pharo-project/pharo-launcher/issues/339

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upload a stack trace with playground
by Roelof Wobben May 15, 2019

May 15, 2019

Hello, I tried to upload a stack trace with playgroundÂ with upload to cloud but I see then a 400 bad request error message. I was a file of 3Kb. Is there a alternative so I can upload a stack trace. Roelof

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Pharo download with wget
by BrunoBB May 15, 2019

May 15, 2019

Hi, Pharo image is created with: wget -O- https://get.pharo.org/64 | bash So far so good . But the following sentence display an error: ./pharo Pharo.image eval 3+4 It answer 7 but also show some errors: [user@localhost linux-server-tools]$ ./pharo Pharo.image eval 3+4 ioLoadModule(/home/gemstone/test/linux-server-tools/pharo-vm/lib/pharo/5.0-201901051900/libgit2.so): libcurl-gnutls.so.4: cannot open shared object file: No such file or directory ioLoadModule(/home/gemstone/test/linux-server-tools/pharo-vm/lib/pharo/5.0-201901051900/libgit2.so): libcurl-gnutls.so.4: cannot open shared object file: No such file or directory tryLoading(/home/gemstone/test/linux-server-tools/pharo-vm/lib/pharo/5.0-201901051900/libgit2.so/.libs/,libgit2.so): stat(/home/gemstone/test/linux-server-tools/pharo-vm/lib/pharo/5.0-201901051900/libgit2.so/.libs/) Not a directory External module not found ExternalLibraryFunction(Object)>>error: ExternalLibraryFunction(Object)>>externalCallFailed ExternalLibraryFunction(ExternalFunction)>>invokeWithArguments: LGitLibrary>>libgit2_init FFICalloutAPI>>function:module: LGitLibrary(Object)>>ffiCall: LGitLibrary>>libgit2_init [ self libgit2_init. self recordInitializationSuccess ] in LGitLibrary>>initializeLibGit2 in Block: [ self libgit2_init.... BlockClosure>>on:do: LGitLibrary>>initializeLibGit2 LGitLibrary class>>startUp: ClassSessionHandler>>startup: [ :each | each startup: isImageStarting ] in WorkingSession>>runStartup: in Block: [ :each | each startup: isImageStarting ] [ aBlock value: each ] in [ :each | [ aBlock value: each ] on: Exception do: [ :error | self errorHandler handleError: error ] ] in WorkingSession>>runList:do: in Block: [ aBlock value: each ] BlockClosure>>on:do: [ :each | [ aBlock value: each ] on: Exception do: [ :error | self errorHandler handleError: error ] ] in WorkingSession>>runList:do: in Block: [ :each | ... Array(SequenceableCollection)>>do: WorkingSession>>runList:do: WorkingSession>>runStartup: WorkingSession>>start: SessionManager>>launchSnapshot:andQuit: [ isImageStarting := self launchSnapshot: save andQuit: quit. wait signal ] in SessionManager>>snapshot:andQuit: in Block: [ isImageStarting := self launchSnapshot: save and...etc... [ self value. Processor terminateActive ] in BlockClosure>>newProcess in Block: [ self value.... 7 Any idea what is going on ? Researching on this issue... regards, bruno -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

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