From: lynnmcguire5@gmail.com
On 10/23/2024 3:53 PM, Lawrence D'Oliveiro wrote:
> On Wed, 23 Oct 2024 13:56:47 -0500, Lynn McGuire wrote:
>
>> BTW, my software dates before version control systems.
>
> Quite a bit of mine did, too, back in the day. Didn’t stop me from putting
> them into version control. I even wrote some utility scripts to help with
> the process .
>
>> And I like change notes in my code, it helps to figure out what
>> is going on.
>
> You soon discover that version control history logs do all that, and more.
> Remember, they show you, not just the comments you entered, but the actual
> file diffs that go with them. Your current header comments cannot provide
> that information.
>
> Git also offers something you’re currently probably not doing because
it’s
> too difficult to do: branching and merging.
>
>> And some day we are going to change version control systems again.
>
> That will likely not be the difficult part. All the open-source VCSes
> offer bulk import/export functions, to allow moving entire repos and
> commit histories between them. Git offered plugins to allow easier
> interoperation with other VCSes like Mercurial and SVN; any future
> replacement for Git will have to do at least as well.
>
>> And I am not going to upgrade 850,000 lines of Fortran F77 code to F90
>> code just to have prettier code. I would still be here in 10 years
>> fixing all of the bugs from that disaster.
>
> Think about making it easier to maintain going forward.
I am going to change all the F77 code to C++ some day. I already have a
heavily modified version of F2C that I have rewritten extensively and
already moved several hundred subroutines from F77 to C++. The biggest
problem is the F77 write statements. F2C fixes the other big problem
automatically, the change of initial array index from one to zero.
Lynn
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