[Newbies] How do I diff two images?

[Mariano Abel Coca]

Basically with monticello you can set up a unique repository and then commit
there the baseline and changes from both images. Once there you can merge
differences easily.

Cheers,

Mariano.


On Thu, May 27, 2010 at 11:34 AM, Clinton Blackmore <
clinton.blackmore at gmail.com> wrote:

> I have heard of Monticello.  (I may need to re-read the chapter on it in
> Squeak By Example).  I've used other version control systems, and understand
> how to use them, but I don't know of any that let you diff source trees that
> aren't in the same version control system, so I have no reason to expect
> that Monticello would do that, either.
>
> Still, I suppose I could try to leverage off of the diffing tools and
> change the way that it gets its input data.   My biggest hang-up is that I
> am, well, a beginner with Squeak.
>
> Thank you,
> Clinton
>
> On Thu, May 27, 2010 at 8:25 AM, Mariano Abel Coca <
> marianoabelcoca at gmail.com> wrote:
>
>> Sorry for the noise, I don't know if this is what you are looking for, but
>> just because it hasn't been mentioned in this thread I have to suggest it:
>> have you looked at Monticello and Metacello?
>>
>> Monticello is the similar to a cvs repository merged with aptitude. And it
>> has it's own diffing tools to compare and merge sources.
>>
>> And Metacello defines dependencies between packages and it's versions.
>>
>> Cheers,
>>
>> Mariano.
>>
>>
>>
>> On Sat, May 22, 2010 at 11:38 AM, Clinton Blackmore <
>> clinton.blackmore at gmail.com> wrote:
>>
>>> I can install a library and start communicating over sockets with one
>>> line of code?!  That's incredible.
>>>
>>> [Incidentally, as a system administrator, I did ask about diffing two
>>> filesystems:
>>> http://serverfault.com/questions/10424/diffing-two-filesystems .
>>>  (grin)]
>>>
>>> Clinton
>>>
>>>
>>> On Sat, May 22, 2010 at 7:59 AM, David Mitchell <
>>> david.mitchell at gmail.com> wrote:
>>>
>>>> People have certainly built tools that do image archeology but they
>>>> have tended to be more academic than practical.
>>>>
>>>> Outside of Squeak, imagine writing a tool to look at two WMware VMDK
>>>> files onto which two different people had installed Windows, Firefox,
>>>> and various other tools. It might be theoretically possible to write a
>>>> program that would look at two VMDKs and tell you about the different
>>>> versions of programs that are installed, but it is practically very
>>>> difficult. It would be much easier to start both machines on the
>>>> network and have them inventory their programs and then compare.
>>>>
>>>> If you are interested in having two (running) Squeaks talk to one
>>>> another, you might want to look at Magma. Magma can store just about
>>>> any Squeak object in an object database that multiple Squeaks can
>>>> connect.
>>>>
>>>> Magma's remote framework can be used outside of Magma. It is available
>>>> as "Ma client server" See this page for details and usage:
>>>>
>>>> http://wiki.squeak.org/squeak/2978
>>>>
>>>> On Sat, May 22, 2010 at 8:24 AM, Clinton Blackmore
>>>> <clinton.blackmore at gmail.com> wrote:
>>>> > Yes, I suppose an image is a virtual machine suspended in time.  I
>>>> hadn't
>>>> > even considered comparing things other than the source code.
>>>> > I'd wondered about filing everything out.  That sounds like the way to
>>>> go.
>>>> >  Having the two images talk to each other and run comparisons also
>>>> sounds
>>>> > very interesting -- but sounds rather difficult (although, perhaps it
>>>> is not
>>>> > and it is just my lack of understanding of squeak that makes it seem
>>>> so).
>>>> > Clinton
>>>> >
>>>> > On Sat, May 22, 2010 at 4:07 AM, Mateusz Grotek <
>>>> unoduetre at poczta.onet.pl>
>>>> > wrote:
>>>> >>
>>>> >> If you want to compare source code only, you can file it out. You
>>>> could
>>>> >> also write some code in both images, and ask them to do comparisons
>>>> (use
>>>> >> sockets of fifos, or similar mechanisms for IPC).
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