Merge branch 'barry/2023-10-25/rename-rules-doc' into 'main'

Rename rules.doc and rules.utils because GitLab treats the former as a MS Word document.

See merge request petsc/petsc!6965

Rename rules.doc and rules.utils because GitLab treats the former as a MS Word document.

Thanks-to: Jed Brown

Merge branch 'barry/2023-10-18/rm-dirs-from-makefiles' into 'main'

Remove use of and the DIRS variables from the makefiles

See merge request petsc/petsc!6945

Remove DIRS variable and unneeded tabs from all makefiles since no longer needed

Commit-type: housekeeping

Merge branch 'barry/2023-03-17/rm-unneeded-test-from-makefiles' into 'main'

simplify/cleanup makefile system

See merge request petsc/petsc!6201

non-test and tutorial makefiles only need rules.doc not the full rules

Commit-type: documentation

Only makefiles in the test and tutorial directories need lib/petsc/conf/test

Commit-type: housekeeping

Merge branch 'barry/2023-03-14/rm-sourceh-from-makefiles' into 'main'

Remove unneeded SOURCE* from makefiles

See merge request petsc/petsc!6186

Remove unneeded SOURCEH from makefiles

No longer used by docs or build

Merge branch 'stefanozampini/snes' into 'main'

Improve Trust-Region support in SNES

See merge request petsc/petsc!6150

TAOSNES: a convenient class to perform comparisons between TAO and SNES solvers

Merge branch 'barry/2023-02-22/rm-locdir' into 'main'

Remove need for hardwired LOCDIR in all makefiles

See merge request petsc/petsc!6113

Remove unneeded declarations of LOCDIR from all the makefiles

Commit-type:documentation

Merge branch 'balay/misc-fixes' into 'main'

petsc4py: revert python3 requirement - as python2 is needed for docs/tarball generation

See merge request petsc/petsc!5620

makefile: fix typo - petsckdir.mk -> petscdir.mk

Merge branch 'barry/2022-05-03/cleanup-makefiles' into 'main'

remove unneeded stuff from makefiles

See merge request petsc/petsc!5211

Add -include */petscdir.mk to makefile that lacked it

for i in `git ls-files | grep makefile | xargs grep -L petscdir.mk`; do
echo $i ;
str=`echo $i |sed -e 's?[-a-zA-Z0-9]*/?../?g' -e 's?makef

Add -include */petscdir.mk to makefile that lacked it

for i in `git ls-files | grep makefile | xargs grep -L petscdir.mk`; do
echo $i ;
str=`echo $i |sed -e 's?[-a-zA-Z0-9]*/?../?g' -e 's?makefile?petsckdir.mk?g'` ;
cp $i tmp
echo "-include $str" > $i
cat tmp >> $i
done

Commit-type: makefile, housekeeping
/spend 15m

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remove garbage from makefiles

Including
* unused FLAGS variables
* All: lib that did not work
* stray blank lines etc

Commit-type: housekeeping
/spend 1h

Merge branch 'stefanozampini/tao-python' into 'main'

TAOPYTHON

See merge request petsc/petsc!4768

TAO: add TAOPYTHON class

deprecate Tao basic API to match SNES and TS paradigms
TaoSetFromOptions: call TaoLineSearchSetFromOptions

Merge branch 'jed/rm-distutils' into 'main'

config: remove distutils from build

See merge request petsc/petsc!4253

config: remove distutils from build

distutils is deprecated and will be removed in Python-3.12:

https://www.python.org/dev/peps/pep-0632/

Most features carry over readily with sysconfig (part of

config: remove distutils from build

distutils is deprecated and will be removed in Python-3.12:

https://www.python.org/dev/peps/pep-0632/

Most features carry over readily with sysconfig (part of minimal python,
unlike distutils, which is often an optional package). One exception is
distutils.sysconfig.parse_makefile, which is more full-featured than
sysconfig._parse_makefile (a private method that exists in python 2.7
and all tested python 3 versions). Specifically, _parse_makefile()
cannot handled lines continued with trailing backslash (\) and thus we
must forbid continuations for DIRS and SOURCE* lines -- just use a line
as long as it needs to be. This system will hopefully be renovated anyway.

Commit-type: portability

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Merge branch 'jed/promote-examples-tests-tutorials' [petsc/petsc!2610]

* jed/promote-examples-tests-tutorials:
Promote examples/{tests,tutorials}/ to {tests,tutorials}/

Promote examples/{tests,tutorials}/ to {tests,tutorials}/

This shortens paths and improves consistency between test target names
and paths to the source and output files. Most of the work was
compl

Promote examples/{tests,tutorials}/ to {tests,tutorials}/

This shortens paths and improves consistency between test target names
and paths to the source and output files. Most of the work was
completed by this script, followed by mild cleanup of nonconforming
cases.

for makefile in `git ls-files 'src/*makefile'`; do
if rg -q 'DIRS.*\bexamples\b' $makefile; then
base=$(dirname $makefile)
dirs=$(cd $base/examples && ls -d tests tutorials 2>/dev/null | xargs echo)
perl -pi -e "s#^(DIRS.*)\bexamples\b#\1${dirs}#" $makefile
git rm $base/examples/makefile
for t in $dirs; do
git mv $base/examples/$t $base/
perl -pi -e "s#^(LOCDIR[[:space:]]*=).*#\1 $base/$t/#" $base/$t
done
fi
done

git grep -l -E -z 'examples/(tutorials|tests)' | xargs -0 perl -pi -e 's#examples/(tutorials|tests)#\1#g'
git checkout @ \
src/docs/website/documentation/changes/ \
src/benchmarks/results/

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Merge remote-tracking branch 'origin/tisaac/feature-tao-shell' [PR #1450]