Migrating pier experiences

Diego and I are looking at migrating the moose site to a newer pier.
We use the PierCodeExporter for that.
The moose site is a pretty old pier (Pier1 on Pharo 1.0rc1 10492). It doesn’t have grease loaded.
The exporter doesn’t use a lot of grease functionality.
We could have tried loading Grease, but decided to just copy paste
the functionality needed.
  http://smalltalkhub.com/mc/Pier/Pier3Addons/main/Pier-Exporter1-DiegoLont.1.mcz

Then the compilation fails because there are too many news entries,
resulting in a method that is too large to compile.
In PRKernelCodeExporter>>writeCodeFor: structure
we changed the repeated
  structure addChild: (self newsABCD: aKernel).
to an array of selectors with a perform: loop.

+               stream << '     #('.
+               structure enumerator do: [ :each | stream << '  #''' << (each asSelector) << ':''' ] separatedBy: [ stream cr ].
+               stream << ' ) do: [ :each | ' << String cr << ' structure addChild: (self perform: each with: aKernel) ].' << String cr.
-
-               structure enumerator do: [ :each |
-                       stream << '     structure addChild: (self ' << (each asSelector) << ': aKernel).' << String cr ].

This was enough for moose, but needs method splitting for larger sites.
  http://smalltalkhub.com/mc/Pier/Pier3Addons/main/Pier-Exporter-Code-DiegoLont.55.mcz

With this we are able to generate the code. Next step is loading in a newer Pier.

to be continued.
  Stephan
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So the next steps are (after updating and moving a few packages):

Gofer new
 url: 'http://www.smalltalkhub.com/mc/Pier/Pier3/main';
 package: 'ConfigurationOfPier3';
 load.

(Smalltalk at: #ConfigurationOfPier3) load.

Gofer new
 url: 'http://www.smalltalkhub.com/mc/Moose/Fame/main';
 package: 'ConfigurationOfFame';
 load.

((Smalltalk at: #ConfigurationOfFame) project version: '1.2') load: 'Core'.

Gofer new
 url: 'http://www.smalltalkhub.com/mc/ObjectProfile/Roassal/main';
 package: 'ConfigurationOfRoassal';
 load.

(Smalltalk at: #ConfigurationOfRoassal) project latestVersion load.

Gofer new
 url: 'http://smalltalkhub.com/mc/RMoD/Citezen/main';
 package: 'ConfigurationOfCitezen';
 load.

((Smalltalk at: #ConfigurationOfCitezen) version: '2.1') load: 'Web'.

Gofer new
 url: 'http://www.smalltalkhub.com/mc/Pier/Pier3Addons/main';
 package: 'Pier-Blog';
 package: 'Pier-Documents';
 package: 'Pier-Exporter-Code';
 package: 'Pier-JQuery';
 package: 'Pier-Google';
 package: 'Pier-Fame';
 package: 'TopFeeder-Pier-Widgets';
 load.

" manually load exported code "
" roll back Magritte-Exernal-FileModel to version 'Magritte-Pharo-Model-DamienCassou.29' "

PRKernelCreatorForPier register

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Hi all,

Load script below still should be made nicer (using the ConfigurationOfPier3Addons), but for now this gives a reasonable result. There are a few notes:

- you should not forget to copy the files. Preferable before creating the Pier instance.

- there are still some does not understands in Citizen, because there are no accessors to build this tree. If someone can give me rights to this, I will add the accessors needed.

- pier3 requires {{{ }}} to embed html. This is not converted, and gives some flaky results.

- testing the site, shows that some parts do not work yet, because some of the used components do not work in Pier3.

Export script:

" Load exporter code "

Gofer new

url: 'http://www.smalltalkhub.com/mc/Pier/Pier3Addons/main';

package: 'Pier-Exporter-Code';

load.

" Check the kernel name, for moose-technology this was the default (pier) "

(Smalltalk at: #PRKernelCodeExporter) exportAsPier3Kernel: 'pier'.

self doStuffInComment.

" Save exported code with Monticello "

Import script: (tested in a fresh pharo 2.0, tailored to work for the moose-technology website, as it loads the used packages for this website.)

" Load Pier"

Gofer new

url: 'http://www.smalltalkhub.com/mc/Pier/Pier3/main';

package: 'ConfigurationOfPier3';

load.

(Smalltalk at: #ConfigurationOfPier3) load.

" Load things we need for some of the extensions "

Gofer new

url: 'http://www.smalltalkhub.com/mc/Moose/Fame/main';

package: 'ConfigurationOfFame';

load.

((Smalltalk at: #ConfigurationOfFame) project version: '1.2') load: 'Core'.

Gofer new

url: 'http://www.smalltalkhub.com/mc/ObjectProfile/Roassal/main';

package: 'ConfigurationOfRoassal';

load.

(Smalltalk at: #ConfigurationOfRoassal) project latestVersion load.

Gofer new

url: 'http://smalltalkhub.com/mc/RMoD/Citezen/main';

package: 'ConfigurationOfCitezen';

load.

((Smalltalk at: #ConfigurationOfCitezen) version: '2.1') load: 'Web'.

" Load Pier extensions "

Gofer new

url: 'http://www.smalltalkhub.com/mc/Pier/Pier3Addons/main';

package: 'Pier-Blog';

package: 'Pier-Documents';

package: 'Pier-Exporter-Code';

package: 'Pier-JQuery';

package: 'Pier-Google';

package: 'Pier-Fame';

package: 'TopFeeder-Pier-Widgets';

package: 'Pier-Randomizer';

load.

self doStuffInComment.

" manually do the following things 

- load exported code

- roll back Magritte-Exernal-FileModel to version 'Magritte-Pharo-Model-DiegoLont.27'

- Copy the folder '/files' to the (resource folder of the) new image or configure Magritte-External-FileModel to point to the right place.

"

" remove old occurrences: "

PRKernel reset.

" and load and register the new one: "

PRKernelCreatorForPier register

Diego

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