git/t/t6412-merge-large-rename.sh

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#!/bin/sh
test_description='merging with large rename matrix'
GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
tests: mark tests relying on the current default for `init.defaultBranch` In addition to the manual adjustment to let the `linux-gcc` CI job run the test suite with `master` and then with `main`, this patch makes sure that GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME is set in all test scripts that currently rely on the initial branch name being `master by default. To determine which test scripts to mark up, the first step was to force-set the default branch name to `master` in - all test scripts that contain the keyword `master`, - t4211, which expects `t/t4211/history.export` with a hard-coded ref to initialize the default branch, - t5560 because it sources `t/t556x_common` which uses `master`, - t8002 and t8012 because both source `t/annotate-tests.sh` which also uses `master`) This trick was performed by this command: $ sed -i '/^ *\. \.\/\(test-lib\|lib-\(bash\|cvs\|git-svn\)\|gitweb-lib\)\.sh$/i\ GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=master\ export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME\ ' $(git grep -l master t/t[0-9]*.sh) \ t/t4211*.sh t/t5560*.sh t/t8002*.sh t/t8012*.sh After that, careful, manual inspection revealed that some of the test scripts containing the needle `master` do not actually rely on a specific default branch name: either they mention `master` only in a comment, or they initialize that branch specificially, or they do not actually refer to the current default branch. Therefore, the aforementioned modification was undone in those test scripts thusly: $ git checkout HEAD -- \ t/t0027-auto-crlf.sh t/t0060-path-utils.sh \ t/t1011-read-tree-sparse-checkout.sh \ t/t1305-config-include.sh t/t1309-early-config.sh \ t/t1402-check-ref-format.sh t/t1450-fsck.sh \ t/t2024-checkout-dwim.sh \ t/t2106-update-index-assume-unchanged.sh \ t/t3040-subprojects-basic.sh t/t3301-notes.sh \ t/t3308-notes-merge.sh t/t3423-rebase-reword.sh \ t/t3436-rebase-more-options.sh \ t/t4015-diff-whitespace.sh t/t4257-am-interactive.sh \ t/t5323-pack-redundant.sh t/t5401-update-hooks.sh \ t/t5511-refspec.sh t/t5526-fetch-submodules.sh \ t/t5529-push-errors.sh t/t5530-upload-pack-error.sh \ t/t5548-push-porcelain.sh \ t/t5552-skipping-fetch-negotiator.sh \ t/t5572-pull-submodule.sh t/t5608-clone-2gb.sh \ t/t5614-clone-submodules-shallow.sh \ t/t7508-status.sh t/t7606-merge-custom.sh \ t/t9302-fast-import-unpack-limit.sh We excluded one set of test scripts in these commands, though: the range of `git p4` tests. The reason? `git p4` stores the (foreign) remote branch in the branch called `p4/master`, which is obviously not the default branch. Manual analysis revealed that only five of these tests actually require a specific default branch name to pass; They were modified thusly: $ sed -i '/^ *\. \.\/lib-git-p4\.sh$/i\ GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=master\ export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME\ ' t/t980[0167]*.sh t/t9811*.sh Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-18 23:44:19 +00:00
export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
. ./test-lib.sh
count() {
i=1
while test $i -le $1; do
echo $i
i=$(($i + 1))
done
}
test_expect_success 'setup (initial)' '
touch file &&
git add . &&
git commit -m initial &&
git tag initial
'
make_text() {
echo $1: $2
for i in $(count 20); do
echo $1: $i
done
echo $1: $3
}
test_rename() {
test_expect_success "rename ($1, $2)" '
n='$1' &&
expect='$2' &&
git checkout -f main &&
test_might_fail git branch -D test$n &&
git reset --hard initial &&
for i in $(count $n); do
make_text $i initial initial >$i || return 1
done &&
git add . &&
git commit -m add=$n &&
for i in $(count $n); do
make_text $i changed initial >$i || return 1
done &&
git commit -a -m change=$n &&
git checkout -b test$n HEAD^ &&
for i in $(count $n); do
git rm $i &&
make_text $i initial changed >$i.moved || return 1
done &&
git add . &&
git commit -m change+rename=$n &&
case "$expect" in
ok) git merge main ;;
*) test_must_fail git merge main ;;
esac
'
}
test_rename 5 ok
test_expect_success 'set diff.renamelimit to 4' '
git config diff.renamelimit 4
'
test_rename 4 ok
test_rename 5 fail
test_expect_success 'set merge.renamelimit to 5' '
git config merge.renamelimit 5
'
test_rename 5 ok
test_rename 6 fail
test_expect_success 'setup large simple rename' '
git config --unset merge.renamelimit &&
git config --unset diff.renamelimit &&
git reset --hard initial &&
for i in $(count 200); do
make_text foo bar baz >$i || return 1
done &&
git add . &&
git commit -m create-files &&
git branch simple-change &&
git checkout -b simple-rename &&
mkdir builtin &&
git mv [0-9]* builtin/ &&
git commit -m renamed &&
git checkout simple-change &&
>unrelated-change &&
git add unrelated-change &&
git commit -m unrelated-change
'
test_expect_success 'massive simple rename does not spam added files' '
sane_unset GIT_MERGE_VERBOSITY &&
git merge --no-stat simple-rename | grep -v Removing >output &&
test_line_count -lt 5 output
'
test_done