tvl-depot/third_party/git/t/perf/p7821-grep-engines-fixed.sh

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#!/bin/sh
test_description="Comparison of git-grep's regex engines with -F
Set GIT_PERF_7821_GREP_OPTS in the environment to pass options to
git-grep. Make sure to include a leading space,
e.g. GIT_PERF_7821_GREP_OPTS=' -w'. See p7820-grep-engines.sh for more
options to try.
If GIT_PERF_7821_THREADS is set to a list of threads (e.g. '1 4 8'
etc.) we will test the patterns under those numbers of threads.
"
. ./perf-lib.sh
test_perf_large_repo
test_checkout_worktree
if test -n "$GIT_PERF_GREP_THREADS"
then
test_set_prereq PERF_GREP_ENGINES_THREADS
fi
for pattern in 'int' 'uncommon' 'æ'
do
for engine in fixed basic extended perl
do
if test $engine = "perl" && ! test_have_prereq PCRE
then
prereq="PCRE"
else
prereq=""
fi
if ! test_have_prereq PERF_GREP_ENGINES_THREADS
then
test_perf $prereq "$engine grep$GIT_PERF_7821_GREP_OPTS $pattern" "
git -c grep.patternType=$engine grep$GIT_PERF_7821_GREP_OPTS $pattern >'out.$engine' || :
"
else
for threads in $GIT_PERF_GREP_THREADS
do
test_perf PTHREADS,$prereq "$engine grep$GIT_PERF_7821_GREP_OPTS $pattern with $threads threads" "
git -c grep.patternType=$engine -c grep.threads=$threads grep$GIT_PERF_7821_GREP_OPTS $pattern >'out.$engine.$threads' || :
"
done
fi
done
if ! test_have_prereq PERF_GREP_ENGINES_THREADS
then
test_expect_success "assert that all engines found the same for$GIT_PERF_7821_GREP_OPTS $pattern" '
test_cmp out.fixed out.basic &&
test_cmp out.fixed out.extended &&
if test_have_prereq PCRE
then
test_cmp out.fixed out.perl
fi
'
else
for threads in $GIT_PERF_GREP_THREADS
do
test_expect_success PTHREADS "assert that all engines found the same for$GIT_PERF_7821_GREP_OPTS $pattern under threading" "
test_cmp out.fixed.$threads out.basic.$threads &&
test_cmp out.fixed.$threads out.extended.$threads &&
if test_have_prereq PCRE
then
test_cmp out.fixed.$threads out.perl.$threads
fi
"
done
fi
done
test_done