- Pharo-dev - lists.pharo.org

Downloading the latest 40 Image -> Error
by HernÃ¡n Morales Durand April 6, 2015

April 6, 2015

FYI $ wget -O- get.pharo.org/40+vm | bash --2015-04-04 18:41:59-- http://get.pharo.org/40+vm Resolving get.pharo.org... 128.93.162.72 Connecting to get.pharo.org|128.93.162.72|:80... connected. HTTP request sent, awaiting response... 200 OK Length: 2885 (2.8K) [text/html] Saving to: `STDOUT' 100%[======================================>] 2,885 --.-K/s in 0.001s 2015-04-04 18:42:00 (2.54 MB/s) - written to stdout [2885/2885] Downloading the latest 40 Image: http://files.pharo.org/image/40/latest.zip [image.MJSoCf/image.zip] End-of-central-directory signature not found. Either this file is not a zipfile, or it constitutes one disk of a multi-part archive. In the latter case the central directory and zipfile comment will be found on the last disk(s) of this archive. unzip: cannot find zipfile directory in one of image.MJSoCf/image.zip or image.MJSoCf/image.zip.zip, and cannot find image.MJSoCf/image.zip.ZIP, period.

4 7

New Pull Request for UpdatedPharoByExample
by Gaurav Singh April 6, 2015

April 6, 2015

I have made a few corrections in the chapter Syntax in a Nutshell. Link to the pull request: https://github.com/SquareBracketAssociates/UpdatedPharoByExample/pull/30 Kindly review the pull request.

3 5

WhatsUp from: 2015-04-06 until: 2015-04-19
by seaside＠rmod.lille.inria.fr April 6, 2015

April 6, 2015

Hi! We're sending this automatic email twice a month, to give the community an opportunity to easily know what's happening and to coordinate efforts. Just answer informally, and feel free to spawn discussions thereafter! ### Here's what I've been up to since the last WhatsUp: - $HEROIC_ACHIEVEMENTS_OR_DISMAL_FAILURES_OR_SIMPLE_BORING_NECESSARY_TASKS ### What's next, until 2015-04-19 (*): - $NEXT_STEPS_TOWARDS_WORLD_DOMINATION (*) we'll be expecting results by then ;)

1 0

Ways to do 32-bit arithmetics?
by Stefan Marr April 6, 2015

April 6, 2015

Hi: I am porting some benchmarks to Pharo, which rely on a deterministic random number generator that uses 32 bit values. In order to have properly comparable results across platforms, it needs to generated the same sequence of numbers. So, I am looking for efficient ways to implement it, any ideas? I am a little at a loss, with SmallInts and Long Ints, how to get the proper 32-bit values, and how to apply the correct shifts, especially the right shift can be problematic. Code examples below. Thanks Stefan In Java it looks like this: private static int seed; // Robert Jenkins' 32 bit integer hash function. public static int random() { seed = ((seed + 0x7ed55d16) + (seed << 12)) & 0xffffffff; seed = ((seed ^ 0xc761c23c) ^ (seed >>> 19)) & 0xffffffff; seed = ((seed + 0x165667b1) + (seed << 5)) & 0xffffffff; seed = ((seed + 0xd3a2646c) ^ (seed << 9)) & 0xffffffff; seed = ((seed + 0xfd7046c5) + (seed << 3)) & 0xffffffff; seed = ((seed ^ 0xb55a4f09) ^ (seed >>> 16)) & 0xffffffff; return seed; } In SOM Smalltalk, it looks like this: JenkinsRandom = ( ---- | seed | seed: val = ( seed := val ) "Robert Jenkins' 32 bit integer hash function." random = ( seed := ((seed + 2127912214 "0x7ed55d16") + (seed as32BitUnsignedValue << 12) as32BitSignedValue) as32BitSignedValue. seed := ((seed bitXor: 3345072700 "0xc761c23c") bitXor: (seed as32BitUnsignedValue >>> 19)) as32BitSignedValue. seed := ((seed + 374761393 "0x165667B1") + (seed as32BitUnsignedValue << 5) as32BitSignedValue) as32BitSignedValue. seed := ((seed + 3550635116 "0xd3a2646c") bitXor: (seed as32BitUnsignedValue << 9) as32BitSignedValue) as32BitSignedValue. seed := ((seed + 4251993797 "0xfd7046c5") + (seed as32BitUnsignedValue << 3) as32BitSignedValue) as32BitSignedValue. seed := ((seed bitXor: 3042594569 "0xb55a4f09") bitXor: (seed as32BitUnsignedValue >>> 16)) as32BitSignedValue. ^ seed ) ) -- Stefan Marr INRIA Lille - Nord Europe http://stefan-marr.de/research/

6 9

Metacello: Resolving Conflicting Attributes
by Sean P. DeNigris April 6, 2015

April 6, 2015

Dale taught me something helpful (and maybe a little obscure) while fixing ConfigurationOfXtreams... Problem: Say you have a platform attribute #pharo4.x, and a #customProjectAttribute #FileSystem. The problem is that the FileSystem-related packages required for #pharo4.x are different than those for the default cases. spec for: #'pharo4.x' do: [ spec package: 'Xtreams-TerminalsFileSystem' with: 'Xtreams-TerminalsFileSystem.pharo40-SeanDeNigris.4' ]. ... spec for: #FileSystem do: [ spec package: 'Xtreams-TerminalsFileSystem' with: 'Xtreams-TerminalsFileSystem-nice.1'. ] Solution: Nest a "spec for: #FileSystem do:" inside the "spec for: #pharo4.x do:" declaring the #pharo4.x-specifics spec for: #'pharo4.x' do: [ spec for: #'FileSystem' do: [ spec package: 'Xtreams-TerminalsFileSystem' with: 'Xtreams-TerminalsFileSystem.pharo40-SeanDeNigris.4' ]. Why it works: Per Dale, "The spec:for:do: blocks are evaluated in attribute order (ConfigurationOfX project attributes) with top-level blocks evaluated before nested blocks ... second level blocks are evaluated in top-level block order after the first level block evaluation ... so having #FileSystem nested inside of #pharo4.x and given that #FileSystem follows #pharo4.x in attribute order means that the nested #FileSystem block inside of #pharo4.x is evaluated after to top-level #FileSystem block allowing you to do #pharo4.x specific overrides" ----- Cheers, Sean -- View this message in context: http://forum.world.st/Metacello-Resolving-Conflicting-Attributes-tp4817683.… Sent from the Pharo Smalltalk Developers mailing list archive at Nabble.com.

2 2

MySQL driver
by Benoit St-Jean April 5, 2015

April 5, 2015

Often times, I have to work with Smalltalk (pick your favorite one) and MySQL.Â I have to deal with multiple versions of MySQL and, unfortunately, incompatible code between Squeak and Pharo.Â I'm thinking of rewriting the MySQL driver to handle different MySQL versions (3.23 up to 5.7), Squeak (3.x up to 4.6) and Pharo (1.0 up to 4.0). Obviously, I'd make sure the driver would handle the different MySQL handshake protocols, password encryption methods and different storage engines (MyISAM, InnoDB and MEMORY) as well as partitions, MERGE tables and views and the oooooh-soooo-different behaviors of the ZEROFILL option and ever-changing server commands (that come and go between versions)!Â I already have a gazillion versions of MySQL servers installed and a bunch of SUnit tests (for another project of mine) to handle all the subtleties of those different versions.Â Is there any interest in such a thing before I spend (quite) some time on this? I created 2 polls to get an idea of what versions of MySQL people use as well as MySQL & Pharo versions used.Â Please, fill out the 2 polls at: MySQL et Squeak et Pharo | Â | | Â | | Â | Â | Â | Â | Â | | MySQL et Squeak et PharoDans l'Ã©ventualitÃ© d'une rÃ©Ã©criture du driver de MySQL pour Squeak et Pharo, j'aimerais avoir une idÃ©e de ce que les gens utilisent!Â RÃ©pondez aux so... | | | | View on endormitoire.wordpress... | Preview by Yahoo | | | | Â | Â Â P.S.Â Sorry for the cross posting! ----------------- BenoÃ®t St-Jean Yahoo! Messenger: bstjean Twitter: @BenLeChialeux Pinterest: benoitstjean IRC: lamneth Blogue: endormitoire.wordpress.com "A standpoint is an intellectual horizon of radius zero".Â (A. Einstein)

1 0

Xtreams Now in MetaRepoForPharo40
by Sean P. DeNigris April 5, 2015

April 5, 2015

It was a bit ugly, but it's working, and I asked a question on the MetaC list about cleaning it up. ----- Cheers, Sean -- View this message in context: http://forum.world.st/Xtreams-Now-in-MetaRepoForPharo40-tp4816538.html Sent from the Pharo Smalltalk Developers mailing list archive at Nabble.com.

3 5

Who maintains Aconcagua & Chalten?
by Sean P. DeNigris April 4, 2015

April 4, 2015

Any idea who maintains them and where to report issues? I have some question/fixes, some of which I posted to Pharo Users... Thanks. ----- Cheers, Sean -- View this message in context: http://forum.world.st/Who-maintains-Aconcagua-Chalten-tp4813575.html Sent from the Pharo Smalltalk Developers mailing list archive at Nabble.com.

5 7

VM and .sources in separate dirs question
by Dmitri Zagidulin April 4, 2015

April 4, 2015

While editing an Updated Pharo by Example chapter, I came across this: "The '.sources' file and the VM can be read-only, and can be shared between different users. All of these files can be placed in the same directory, but it is also possible to put the Virtual Machine and sources file in separate directory where everyone has access to them." Is this true, that you can keep the VM and .sources in different directories? How do you tell the VM where to locate the sources? I assume it's some sort of commandline parameter?

3 7

Brand new modern Spotter design!
by Aliaksei Syrel April 4, 2015

April 4, 2015

Hi, We would like to present a brand new Spotter design! It follows all modern UI techniques as flat and material design. Feel the future coming! Update Spotter to the latest version: { { 'ConfigurationOfRubric'. 'AlainPlantec'. 'Rubric' }. { 'ConfigurationOfGlamourCore'. 'Moose'. 'Glamour' }. { 'ConfigurationOfGTInspectorCore'. 'Moose'. 'GToolkit' }. { 'ConfigurationOfGTPlaygroundCore'. 'Moose'. 'GToolkit' }. { 'ConfigurationOfGTSpotter'. 'Moose'. 'GToolkit' }. { 'ConfigurationOfGToolkitCore'. 'Moose'. 'GToolkit' }. } do: [ :spec | Gofer new smalltalkhubUser: spec second project: spec third; package: spec first; load ]. ConfigurationOfGToolkitCore loadDevelopment. KMRepository reset. Best wishes, GT Team

17 38