Tools for working with ChangeSets

Jerome Peace peace_the_dreamer at yahoo.com
Thu Mar 1 18:58:00 UTC 2007


Tools for working with ChangeSets

Hi Matthew, 

This is great stuff!

Why not start a Mantis issue?

Mantis FAQ and Tips
http://wiki.squeak.org/squeak/5912

Yours in service, --Jerome Peace
>  
>  Matthew Fulmer tapplek at gmail.com 
>  Thu Mar 1 14:52:43 UTC 2007 
>  
>  I am trying to file in a changeset that was made
for
>  Squeak 3.2,
>  but will lock up a 3.8 image when filed in, due to
>  changing some
>  really deep stuff with in Object (such as
>  doesNotUnderstand:).
>  So I looked for a way to differentiate between the
>  ChangeRecords
>  that override an existing method from those that
don't,
>  and I
>  came across ChangeList.
>  
>  ChangeList seems to be the object that is created
from
>  a .cs
>  file, but the class itself seems to be a black box.
For
>  instance, there is no obviously correct way to
create a
>  ChangeList from a .cs file without popping up the
>  change viewer
>  tool. to do that, I had to copy the class method
>  browseStream:
>  to a workspace and did all but the last line
(strangely,
>  this class seems to be somehow tied to the UI event
>  loop, so
>  debugging browseStream: freezes the UI).
>  
>  Then, once I had a ChangeList without a window, I
was
>  able to
>  call ChangeList>>changeList to get at the list of
>  ChangeRecords
>  and sort them like:
>  
>  dangerous := changeList changeList select: [:each|
>      each methodClass ifNil: [false] ifNotNil: [
>          each methodClass canUnderstand: each
>  methodSelector]]
>  
>  and similarly for "safe" changes. Now, again, there
is
>  now
>  obviously correct way to create a ChangeList from
this
>  OrderedCollection of ChangeRecords.
>  
>  The problem is that ChangeList is trying to be both
a
>  Model and
>  a View (at least that is how it seems to me), and
is
>  not doing a
>  very good job at either. The tools for ChangeSet
>  manipulation
>  seem to be much better, and the only difference
that I
>  can see is
>  that ChangeList handles external code and ChangeSet
>  handles
>  in-image code. 
>  
>  My questions:
>  - Is there some tool that does what I am looking
for? 
>  - Why the difference between ChangeSet and
ChangeList?
>  
>  If there is no tools for the task I am attempting,
I
>  will just
>  keep hacking it.
>  
>  -- 
>  Matthew Fulmer -- http://mtfulmer.wordpress.com/
>  Help improve Squeak Documentation:
>  http://wiki.squeak.org/squeak/808
***



 
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