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

Re: [Pharo-users] Pharo command line, stdout and integrating with other tools?

by Tim Mackinnon

Just to confirm and give a specific example - if I use the eval handler, you get output like the following which means that other tools will barf (the json was written to stdout, the âokâ string was the result of the method called). So Andreas is correct - I need to write my own handler. I will report back. { "outputSpeach": { "text": "hello world", "type": "PlainText" }, "card": { "content": "Operation Complete", "title": "Genius", "type": "simple" } } âokâ <â this extra output, the result of a method will confuse tools calling Pharo Tim > On 1 Jul 2017, at 17:41, Tim Mackinnon <tim(a)testit.works> wrote: > > Thanks Andreas, I was just coming to the conclusion you have pointed out. I haven't had a computer to try it - but I'll try your example. > > If it works, I think this should almost be in the std image so that Pharo plays better with others straight out of the box. > > The " issue is when calling from other other languages (e.g. Nodejs). Try passing some Json as a parameter using exec and you hit this issue with the eval handler - but maybe with my own handler I can do something better? I need to study this and will report back. > > Thanks, > > Tim > > Sent from my iPhone > > On 1 Jul 2017, at 17:17, Andreas Sunardi <a.sunardi(a)gmail.com <mailto:a.sunardi@gmail.com>> wrote: > >> If I'm not mistaken, this is Pharo's eval command line handler you're talking about. If so, it is not correct to say 'it also return the result of that method or yourself'. To return the result (and print it to stdout) of that method is the goal of eval command line handler. >> >> How about making your method to return empty string, or better create your own command line handler. I believe the minimal you need to do is to subclass EvaluateCommandLineHandler, override class method #commandName and override method #evaluate:. Something like this, perhaps >> >> ProceesCommandLineHandler class >> commandName >> ^ 'process' >> >> ProcessCommandLineHandler >> evaluate: aStream >> Smalltalk evaluate: aStream. >> >> Save your image, then you can call >> ./pharo -headless myimage.image process StandardFileStream stdout print: 42 >> >> and it'll print 42 and nothing else. >> >> I'm not sure I understand the double quote (") character issue that \" solves. Example? >> >> >> >> On Thu, Jun 29, 2017 at 7:02 AM, Tim Mackinnon <tim(a)testit.works <mailto:tim@testit.works>> wrote: >> Hi - I've been playing with using Pharo with Aws lambda and have got an image to launch in that environment. >> >> However now I need to better integrate Pharo with its calling environment - and I know there was a concerted effort to make Pharo play better which I should be able to leverage. >> >> So I am calling Pharo from a NodeJS wrapper (the suggested aws method for integrating alternative languages like Ruby, Go etc). >> >> I got this to work - however as an observation, it is rather awkward passing parameters to Pharo using the "eval" mechanism as other languages and environments frequently use the " character (particularly with Json) and this causes Pharo to fail if you don't \" this. I'm wondering if others have noted this and whether we can do this better somehow? For now a little nodeJS regex fu gets me past it. >> >> However my next question is about passing information back to the calling application. >> >> I can see that there is a stdout method on Fikestream that I can write to (great), however in my ./pharo eval call, which sends to a class method doing this - it also returns the result of that method or yourself? I guess this convention is great for the "eval 42 factorial" example but not so great of you just want to return some Json via stdout in a format of the calling environment? >> >> Is there something simple trick I can do to stop this extra result and just let me use stdout myself? Or do I have to return a Smalltalk string and then regex convert it to a new format in my calling language? >> >> I'm wondering if others have done this, or if anyone has some advice? >> >> It feels like a usecase that we might be able to do better somehow? >> >> Tim >> >> Sent from my iPhone >> >>

July 4, 2017

Re: [Pharo-users] Glamour: update presenter with new text

by Hilaire

Le 03/07/2017 Ã 23:20, Juraj Kubelka a Ã©crit : > You may have a wrapper that holds the compiled method. So, the method list can hold your wrappers instead of compiled methods. > Than your wrapper could listen to the system announcer for changes and updates its value accordingly. > Or you can update your method list on according to changes in the system announcer. I really don't know how to hook this in the DrGeo script browser. The methods are displayed with this code. How to add a listener to update it? methodsIn: composite composite wrapper title: 'Methods' translated; show: [ :wrapper | wrapper fastList display: [ :aClass | aClass methods ]; format: [ :aCompiledMethod | aCompiledMethod selector asString ] ]. composite wrapper title: 'Script data' translated; show: [ :wrapper | wrapper fastList display: [ :aClass | aClass class methods ]; format: [ :aCompiledMethod | aCompiledMethod selector asString ] ]. composite onChangeOfPort: #activePresentation act: [ :presentation | (presentation pane port: #activePresentation) value ifNotNil: [ :activePresentation | ((browser paneNamed: #methods) port: #selection) value: (activePresentation defaultPane port: #selection) value ] ] > Check, SystemAnnouncer uniqueInstance on: MethodModified do: [ :ann | self inform: ann method printString, â changedâ ]. In Pharo6, it should be written: SystemAnnouncer uniqueInstance *when:* MethodModified do: [ :ann | self inform: ann method printString, â changedâ ]. -- Dr. Geo http://drgeo.eu

July 4, 2017

Re: [Pharo-users] Running a headless server

by Sven Van Caekenberghe

> On 4 Jul 2017, at 07:26, sergio ruiz <sergio.rrd(a)gmail.com> wrote: > > Hi, all.. Did you read https://ci.inria.fr/pharo-contribution/job/EnterprisePharoBook/lastSuccessf… ? TL;DR use the config handler to load/update code and save your image start your server in a script (st handler) or with an expression (eval handler) > I have started looking at the zeroconf scripts, and i think i have most of this figured out.. > > I just have a few questions, to make sure I am doing this correctly. > > In order to run the current image headless, should I just do something like: > > ./pharo Pharo.image âno-quit & > > I can load up my project, but how can i get the latest updates to the project? > > ./pharo Pharo.image update seems like it just updates the VM.. > > If i run something like this: > > ./pharo Pharo.image eval --save --no-quit "|server| server := PrintBotServer serveOn: 8080." > a PrintBotServer > > I would expect that it would save my image.. but when i hit ^c, and restart it like so: > > ./pharo Pharo.image > > the printbot doesnât exist anymore. > > any idea how to get this to work correctly? > > Thanks! > > ---- > peace, > sergio > photographer, journalist, visionary > > Public Key: http://bit.ly/29z9fG0 > #BitMessage BM-NBaswViL21xqgg9STRJjaJaUoyiNe2dV > http://www.Village-Buzz.com > http://www.ThoseOptimizeGuys.com > http://www.coffee-black.com > http://www.painlessfrugality.com > http://www.twitter.com/sergio_101 > http://www.facebook.com/sergio101

July 4, 2017

Re: [Pharo-users] Running a headless server

by Pavel Krivanek

2017-07-04 7:26 GMT+02:00 sergio ruiz <sergio.rrd(a)gmail.com>: > Hi, all.. > > I have started looking at the zeroconf scripts, and i think i have most of > this figured out.. > > I just have a few questions, to make sure I am doing this correctly. > > In order to run the current image headless, should I just do something > like: > > ./pharo Pharo.image âno-quit & > > I can load up my project, but how can i get the latest updates to the > project? > > ./pharo Pharo.image update seems like it just updates the VM.. > > If i run something like this: > > ./pharo Pharo.image eval --save --no-quit "|server| server := > PrintBotServer serveOn: 8080." > a PrintBotServer > I think that the --save is executed only on image quit so in this case it is never executed. In the end, you can simply in your script do: Smalltalk snapshot: true andQuit: false. -- Pavel > > I would expect that it would save my image.. but when i hit ^c, and > restart it like so: > > ./pharo Pharo.image > > the printbot doesnât exist anymore. > > any idea how to get this to work correctly? > > Thanks! > > ---- > peace, > sergio > photographer, journalist, visionary > > Public Key: http://bit.ly/29z9fG0 > #BitMessage BM-NBaswViL21xqgg9STRJjaJaUoyiNe2dV > http://www.Village-Buzz.com <http://www.village-buzz.com/> > http://www.ThoseOptimizeGuys.com <http://www.thoseoptimizeguys.com/> > http://www.coffee-black.com > http://www.painlessfrugality.com > http://www.twitter.com/sergio_101 > http://www.facebook.com/sergio101 >

July 4, 2017

Running a headless server

by sergio ruiz

Hi, all.. I have started looking at the zeroconf scripts, and i think i have most of this figured out..Â I just have a few questions, to make sure I am doing this correctly. In order to run the current image headless, should I just do something like: ./pharo Pharo.image âno-quit & I can load up my project, but how can i get the latest updates to the project? ./pharo Pharo.image update seems like it just updates the VM.. If i run something like this: ./pharo Pharo.image eval --save --no-quit "|server| server := PrintBotServer serveOn: 8080." a PrintBotServer I would expect that it would save my image.. Â but when i hit ^c, and restart it like so: ./pharo Pharo.image the printbot doesnât exist anymore.Â any idea how to get this to work correctly? Thanks! ---- peace, sergio photographer, journalist, visionary Public Key:Â http://bit.ly/29z9fG0 #BitMessageÂ BM-NBaswViL21xqgg9STRJjaJaUoyiNe2dV http://www.Village-Buzz.com http://www.ThoseOptimizeGuys.com http://www.coffee-black.com http://www.painlessfrugality.com http://www.twitter.com/sergio_101 http://www.facebook.com/sergio101

July 4, 2017

Re: [Pharo-users] Glamour: update presenter with new text

by Juraj Kubelka

> El 03-07-2017, a las 22:28, Hilaire <hilaire(a)drgeo.eu> escribiÃ³: > > I will be curious to know how to do thatâ¦ You may have a wrapper that holds the compiled method. So, the method list can hold your wrappers instead of compiled methods. Than your wrapper could listen to the system announcer for changes and updates its value accordingly. Or you can update your method list on according to changes in the system announcer. Check, SystemAnnouncer uniqueInstance on: MethodModified do: [ :ann | self inform: ann method printString, â changedâ ]. Juraj > > > Le 03/07/2017 Ã 18:08, Andrei Chis a Ã©crit : >> 'aCompiledMethod' references the old method. To make this work you'll >> need to not reference the compiled method object directly or also >> refresh the list of methods. > > -- > Dr. Geo > http://drgeo.eu > > >

July 3, 2017

PharoCloud Ephemeric Cloud updates

by mikefilonov

Hi, Some updates on Ephemeric Cloud development: 1) Ephemeric cloud moved from OVH to Digital Ocean. In theory this opens an opportunity to run instances in different datacenter regions of DO. I think about adding a node in Frankfurt. Any thoughts? 2) Added support for Pharo 6 (32 bits only for now). Pharo 6 is particularly slow in read-only environments, so... now environment is writable. All changes are written to memory and reset on restart. Kind of works, Pharo 6 images are starting in 1-2 seconds (after initial load which may take for like 10 seconds). I migrated all my apps to the Pharo 6 and seems to work fine now. 3) Added custom ports support. Now it is possible to expose any additional ports needed for your Image. If you set an integer array to property "customPorts" system will expose and forward to these ports on start of the instance. Public addresses of the exposed ports are available on "mappedPorts". Note that public addresses are changed every start (and not accessible on stopped Images). 4) As result now you can remotely connect, debug and control Images running at PharoCloud using PharmIDE: http://docs.swarm.pharocloud.com/article/remote_debug This is so awesome! Thank you to Denis for his great work on PharmIDE: http://dionisiydk.blogspot.com/2017/01/pharmide-pharo-remote-ide-to-develop… Please try it and tell me if it works for you. 5) Completely new http gate for ephemerics. Instead of golang version now it is run on nginx + lua. This allows virtually all features to work. Like websockets: http://aidaweb.swarm.pharocloud.com/?view=realtime 6) Optimized Image upload should give pretty good boost in sending new Images to cloud. Just a reminder: to get free access to the cloud you can use your Pharo Association account or register at pharocloud main site. You can log in here: https://www.pharocloud.com/manager Docs can be found here: http://docs.swarm.pharocloud.com/ Looking forward for feedback. Cheers, Mike -- View this message in context: http://forum.world.st/PharoCloud-Ephemeric-Cloud-updates-tp4953360.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

July 3, 2017

Re: [Pharo-users] Glamour: update presenter with new text

by Hilaire

I will be curious to know how to do that... Le 03/07/2017 Ã 18:08, Andrei Chis a Ã©crit : > 'aCompiledMethod' references the old method. To make this work you'll > need to not reference the compiled method object directly or also > refresh the list of methods. -- Dr. Geo http://drgeo.eu

July 3, 2017

Re: [Pharo-users] Glamour: update presenter with new text

by Andrei Chis

If I'm not mistaken CompiledMethod instances are immutable. When you run 'compiledMethod methodClass compile: presentation text' another CompiledMethod object is created and installed in the methods dictionary. So in the display block 'aCompiledMethod' references the old method. To make this work you'll need to not reference the compiled method object directly or also refresh the list of methods. Cheers, Andrei On Mon, Jul 3, 2017 at 5:48 PM, Hilaire <hilaire(a)drgeo.eu> wrote: > Ah sorry no it is not working as expected. > > When I saved a modified method, the presenter got its source text > updated (good), but the morph view is reversed to its previous content. > > Here is the code I use, anything wrong in the code bellow? > > Thanks > > Hilaire > > sourceIn: composite ^ composite pharoMethod title: 'Source code' > translated; smalltalkClass: [ :each | each methodClass]; display: [ > :aCompiledMethod | aCompiledMethod sourceCode ]; act: [ :presentation > :compiledMethod | compiledMethod methodClass compile: presentation text. > presentation update.] on: $s entitled: 'Save' translated > > -- > Dr. Geo > http://drgeo.eu > > > >

July 3, 2017

Re: [Pharo-users] Glamour: update presenter with new text

by Hilaire

Sorry for the text formating, it was wrong, hope it is better now: || || |sourceIn: composite| | ^ composite pharoMethod| | title: 'Source code' translated;| | smalltalkClass: [ :each | each methodClass];| | display: [ :aCompiledMethod | aCompiledMethod sourceCode ];| | act: [ :presentation :compiledMethod || | compiledMethod methodClass compile: presentation text.| | presentation update.] | | on: $s | | entitled: 'Save' translated| -- Dr. Geo http://drgeo.eu -- Dr. Geo http://drgeo.eu

July 3, 2017