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Re: versioning file system

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On 10/26/18 3:26 PM, David wrote:
> On Sat, 27 Oct 2018 at 08:23, David Christensen
> <dpchrist@holgerdanske.com> wrote:
> 
> Hi, I've noticed that you give a lot of good advice on this list. Now, I hope
> to return the favour :) ...

Thank you; I try.


>> When I'm working on a file, I can do ten edit/ saves, or more.  With a
>> versioning file system, the original file plus all the saves would be on
>> disk.  This makes it easy to pick through them using standard tools.
> 
> git is a "standard tool" these days.

Perhaps.


>> But if the original file and all but the last save are in a version
>> control system (VCS), I would need tools that can reach inside the VCS.
>> Searching the manual pages of cat(1), grep(1), diff(1), and make(1) for
> 
> git-cat-file(1)
> git-grep(1)
> git-diff(1)

     cvs update -p ...

     cvs diff ...


The first operation for both Git and CVS is necessary functionality 
(print a specific revision of a file on standard output).  The second 
and subsequent operations can be performed the Unix Way:

     https://en.wikipedia.org/wiki/Unix_way

     cvs update -p ... | grep ...

     cvs update -p ... | diff - ...

     cvs update -p ... > ... && cvs update -p ... > ... && diff ...


A versioning file system exposes every version of file as a regular 
file, so that every file system aware tool can access it.


A good shell lets you easily combine the files and the tools as desired.


>> 'CVS' just now, I found zero hits.  This means I'd need to check them
> 
> CVS WTF? :)

Yup.


>> out.  Now I'm back to what a versioning file system gives me automatically.
>>
>>
>> Furthermore, auto-commit on every save would put a lot of cruft into the
>> VCS, to be stored, backed up, and archived repeatedly and indefinitely.
>> If I try to remove the VCS auto-commits by hand, eventually I will
>> damage or destroy the VCS repository (e.g. Murphy's Law).  Removing VCS
>> auto-commits mechanically would require developing and validating a
>> suitable work flow and tools, adding cost and limiting flexibility.
> 
> git-rebase(1)
> 
> Seriously, learn git. git's own documentation does not make that easy, but
> if you search more widely for information and persist, it will be extremely
> rewarding in the long run.

I read the O'Reilly book "Version Control with Git" many years ago, but 
I haven't had a compelling use-case for Git.  (And, I prefer CVS's 
traditional per-file version numbering feature.)


David

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versioning file system David Christensen <dpchrist@holgerdanske.com> - 2018-10-26 02:40 +0200
  Re: versioning file system Roberto C. Sánchez <roberto@debian.org> - 2018-10-26 04:50 +0200
    Re: versioning file system David Christensen <dpchrist@holgerdanske.com> - 2018-10-26 22:20 +0200
  Re: versioning file system songbird <songbird@anthive.com> - 2018-10-26 05:10 +0200
    Re: versioning file system David Christensen <dpchrist@holgerdanske.com> - 2018-10-26 22:10 +0200
      Re: versioning file system Erik Christiansen <dvalin@internode.on.net> - 2018-10-29 06:50 +0100
        Re: versioning file system David Christensen <dpchrist@holgerdanske.com> - 2018-10-29 08:00 +0100
    Re: versioning file system Jonathan Dowland <jmtd@debian.org> - 2018-10-26 22:10 +0200
  Re: versioning file system Dan Ritter <dsr@randomstring.org> - 2018-10-26 16:00 +0200
    Re: versioning file system David Christensen <dpchrist@holgerdanske.com> - 2018-10-26 23:30 +0200
      Re: versioning file system David <bouncingcats@gmail.com> - 2018-10-27 00:30 +0200
        Re: versioning file system David Christensen <dpchrist@holgerdanske.com> - 2018-10-27 02:30 +0200
  Re: versioning file system Jonathan Dowland <jmtd@debian.org> - 2018-10-26 22:10 +0200
    Re: versioning file system David Christensen <dpchrist@holgerdanske.com> - 2018-10-26 23:50 +0200
      Re: versioning file system Jonathan Dowland <jmtd@debian.org> - 2018-10-28 15:50 +0100
        Re: versioning file system David Christensen <dpchrist@holgerdanske.com> - 2018-10-29 04:00 +0100
          Re: versioning file system Jonathan Dowland <jmtd@debian.org> - 2018-10-30 10:50 +0100
            Re: versioning file system Michael Stone <mstone@debian.org> - 2018-10-30 11:50 +0100
              Re: versioning file system David Christensen <dpchrist@holgerdanske.com> - 2018-10-30 19:10 +0100

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