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#!/bin/sh
test_description="Comparison of git-grep's regex engines
Set GIT_PERF_7820_GREP_OPTS in the environment to pass options to
git-grep. Make sure to include a leading space,
e.g. GIT_PERF_7820_GREP_OPTS=' -i'. Some options to try:
-i
-w
-v
-vi
-vw
-viw
If GIT_PERF_GREP_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 \
'how.to' \
'^how to' \
'[how] to' \
'\(e.t[^ ]*\|v.ry\) rare' \
'm\(ú\|u\)lt.b\(æ\|y\)te'
do
for engine in basic extended perl
do
if test $engine != "basic"
then
# Poor man's basic -> extended converter.
pattern=$(echo "$pattern" | sed 's/\\//g')
fi
if test $engine = "perl" && ! test_have_prereq PCRE
then
prereq="PCRE"
else
prereq=""
fi
if ! test_have_prereq PERF_GREP_ENGINES_THREADS
then
test_perf "$engine grep$GIT_PERF_7820_GREP_OPTS '$pattern'" \
--prereq "$prereq" "
git -c grep.patternType=$engine grep$GIT_PERF_7820_GREP_OPTS -- '$pattern' >'out.$engine' || :
"
else
for threads in $GIT_PERF_GREP_THREADS
do
test_perf "$engine grep$GIT_PERF_7820_GREP_OPTS '$pattern' with $threads threads"
--prereq PTHREADS,$prereq "
git -c grep.patternType=$engine -c grep.threads=$threads grep$GIT_PERF_7820_GREP_OPTS -- '$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$GIT_PERF_7820_GREP_OPTS '$pattern'" '
test_cmp out.basic out.extended &&
if test_have_prereq PCRE
then
test_cmp out.basic 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_7820_GREP_OPTS '$pattern' under threading" "
test_cmp out.basic.$threads out.extended.$threads &&
if test_have_prereq PCRE
then
test_cmp out.basic.$threads out.perl.$threads
fi
"
done
fi
done
test_done
|
