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git/t/t3302-notes-index-expensive.sh
Johan Herland 3ed24b6aaf t3302-notes-index-expensive: Speed up create_repo()
Creating repos with 10/100/1000/10000 commits and notes takes a lot of time.
However, using git-fast-import to do the job is a lot more efficient than
using plumbing commands to do the same.

This patch decreases the overall run-time of this test on my machine from
~3 to ~1 minutes.

Signed-off-by: Johan Herland <johan@herland.net>
Acked-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-10-19 19:00:24 -07:00

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#!/bin/sh
#
# Copyright (c) 2007 Johannes E. Schindelin
#
test_description='Test commit notes index (expensive!)'
. ./test-lib.sh
test -z "$GIT_NOTES_TIMING_TESTS" && {
say Skipping timing tests
test_done
exit
}
create_repo () {
number_of_commits=$1
nr=0
test -d .git || {
git init &&
(
while [ $nr -lt $number_of_commits ]; do
nr=$(($nr+1))
mark=$(($nr+$nr))
notemark=$(($mark+1))
test_tick &&
cat <<INPUT_END &&
commit refs/heads/master
mark :$mark
committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
data <<COMMIT
commit #$nr
COMMIT
M 644 inline file
data <<EOF
file in commit #$nr
EOF
blob
mark :$notemark
data <<EOF
note for commit #$nr
EOF
INPUT_END
echo "N :$notemark :$mark" >> note_commit
done &&
test_tick &&
cat <<INPUT_END &&
commit refs/notes/commits
committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE
data <<COMMIT
notes
COMMIT
INPUT_END
cat note_commit
) |
git fast-import --quiet &&
git config core.notesRef refs/notes/commits
}
}
test_notes () {
count=$1 &&
git config core.notesRef refs/notes/commits &&
git log | grep "^ " > output &&
i=$count &&
while [ $i -gt 0 ]; do
echo " commit #$i" &&
echo " note for commit #$i" &&
i=$(($i-1));
done > expect &&
test_cmp expect output
}
cat > time_notes << \EOF
mode=$1
i=1
while [ $i -lt $2 ]; do
case $1 in
no-notes)
GIT_NOTES_REF=non-existing; export GIT_NOTES_REF
;;
notes)
unset GIT_NOTES_REF
;;
esac
git log >/dev/null
i=$(($i+1))
done
EOF
time_notes () {
for mode in no-notes notes
do
echo $mode
/usr/bin/time sh ../time_notes $mode $1
done
}
for count in 10 100 1000 10000; do
mkdir $count
(cd $count;
test_expect_success "setup $count" "create_repo $count"
test_expect_success 'notes work' "test_notes $count"
test_expect_success 'notes timing' "time_notes 100"
)
done
test_done