Re: 10% drop in code line count in PG 17

On Wed, Nov 19, 2025 at 04:22:37PM -0500, Tom Lane wrote:
> Bruce Momjian <bruce@momjian.us> writes:
> > On Wed, Nov 19, 2025 at 03:21:33PM -0500, Tom Lane wrote:
> >> Also ... are you in fact counting only what is in git?  Because
> >> I get different answers:
> 
> > No, I just followed the shell comment I wrote above the 'find' command
> > shown above:
> 
> >     # This script is used to compute the total number of "C" lines in the
> >     # release This should be run from the top of the Git tree after a 'make
> >     # distclean'
> 
> > And that tree has been built many times.  Should I change my procedure?
> 
> Does "git status --ignored" show any leftover junk files?
> 
> I've found that "make distclean" isn't 100% reliable if you aren't
> religious about doing it before every git pull or other change of
> git HEAD.  The pull might bring in new makefiles with a different
> idea of what needs to be cleaned.  For .c files I'd kind of expect
> leftovers to be obvious because they won't get hidden by .gitignore
> rules, but maybe you hit some case where they're still hidden.
> 
> I've largely migrated to using "git clean -dfxq", which has about
> the same results in modern branches, but is faster and never (IME)
> misses anything.

I think you are right.  Attached is the difference between the output
for 16 & 17.  Let me do some more research and run all the versions
again and report back, thanks.

-- 
  Bruce Momjian  <bruce@momjian.us>        https://momjian.us
  EDB                                      https://enterprisedb.com

  Do not let urgent matters crowd out time for investment in the future.