git/t/perf/p3400-rebase.sh
Alban Gruin 5aa24d71d8 p3400: replace calls to git checkout -b' by git checkout -B'
p3400 makes a copy of the current repository to test git-rebase
performance, and creates new branches in the copy with `git checkout
-b'.  If the original repository has branches with the same name as the
script is trying to create, this operation will fail.

This replaces these calls by `git checkout -B' to force the creation and
update of these branches.

Signed-off-by: Alban Gruin <alban.gruin@gmail.com>
Acked-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-11-12 16:40:55 +09:00

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#!/bin/sh
test_description='Tests rebase performance'
. ./perf-lib.sh
test_perf_default_repo
test_expect_success 'setup rebasing on top of a lot of changes' '
git checkout -f -B base &&
git checkout -B to-rebase &&
git checkout -B upstream &&
for i in $(seq 100)
do
# simulate huge diffs
echo change$i >unrelated-file$i &&
seq 1000 >>unrelated-file$i &&
git add unrelated-file$i &&
test_tick &&
git commit -m commit$i unrelated-file$i &&
echo change$i >unrelated-file$i &&
seq 1000 | tac >>unrelated-file$i &&
git add unrelated-file$i &&
test_tick &&
git commit -m commit$i-reverse unrelated-file$i ||
break
done &&
git checkout to-rebase &&
test_commit our-patch interesting-file
'
test_perf 'rebase on top of a lot of unrelated changes' '
git rebase --onto upstream HEAD^ &&
git rebase --onto base HEAD^
'
test_expect_success 'setup rebasing many changes without split-index' '
git config core.splitIndex false &&
git checkout -B upstream2 to-rebase &&
git checkout -B to-rebase2 upstream
'
test_perf 'rebase a lot of unrelated changes without split-index' '
git rebase --onto upstream2 base &&
git rebase --onto base upstream2
'
test_expect_success 'setup rebasing many changes with split-index' '
git config core.splitIndex true
'
test_perf 'rebase a lot of unrelated changes with split-index' '
git rebase --onto upstream2 base &&
git rebase --onto base upstream2
'
test_done