Merge branch 'hongzh/improve-fd-coloring' into 'main'

Add MatEliminateZeros

See merge request petsc/petsc!5816

Add tests for MatEliminateZeros

Merge branch 'barry/2020-07-04/fix-ex36-error-checking' into 'master'

Fix missing crucial error checking in one example, add trivial error checking...

See merge request petsc/petsc!2954

Fix missing crucial error checking in one example, add trivial error checking in many other examples. Fix a few printf() to PetscPrintf()

Commit-type: error-checking, testing-fix, style-fix, example

Fix missing crucial error checking in one example, add trivial error checking in many other examples. Fix a few printf() to PetscPrintf()

Commit-type: error-checking, testing-fix, style-fix, example
/spend 45m

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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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