git/t/t0612-reftable-jgit-compati...

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#!/bin/sh
test_description='reftables are compatible with JGit'
GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
GIT_TEST_DEFAULT_REF_FORMAT=reftable
export GIT_TEST_DEFAULT_REF_FORMAT
# JGit does not support the 'link' DIRC extension.
GIT_TEST_SPLIT_INDEX=0
export GIT_TEST_SPLIT_INDEX
TEST_PASSES_SANITIZE_LEAK=true
. ./test-lib.sh
if ! test_have_prereq JGIT
then
skip_all='skipping reftable JGit tests; JGit is not present in PATH'
test_done
fi
if ! test_have_prereq SHA1
then
skip_all='skipping reftable JGit tests; JGit does not support SHA256 reftables'
test_done
fi
test_commit_jgit () {
touch "$1" &&
jgit add "$1" &&
jgit commit -m "$1"
}
test_same_refs () {
git show-ref --head >cgit.actual &&
jgit show-ref >jgit-tabs.actual &&
tr "\t" " " <jgit-tabs.actual >jgit.actual &&
test_cmp cgit.actual jgit.actual
}
test_same_ref () {
git rev-parse "$1" >cgit.actual &&
jgit rev-parse "$1" >jgit.actual &&
test_cmp cgit.actual jgit.actual
}
test_same_reflog () {
git reflog "$*" >cgit.actual &&
jgit reflog "$*" >jgit-newline.actual &&
sed '/^$/d' <jgit-newline.actual >jgit.actual &&
test_cmp cgit.actual jgit.actual
}
test_expect_success 'CGit repository can be read by JGit' '
test_when_finished "rm -rf repo" &&
git init repo &&
(
cd repo &&
test_commit A &&
test_same_refs &&
test_same_ref HEAD &&
test_same_reflog HEAD
)
'
test_expect_success 'JGit repository can be read by CGit' '
test_when_finished "rm -rf repo" &&
jgit init repo &&
(
cd repo &&
touch file &&
jgit add file &&
jgit commit -m "initial commit" &&
# Note that we must convert the ref storage after we have
# written the default branch. Otherwise JGit will end up with
# no HEAD at all.
jgit convert-ref-storage --format=reftable &&
test_same_refs &&
test_same_ref HEAD &&
# Interestingly, JGit cannot read its own reflog here. CGit can
# though.
printf "%s HEAD@{0}: commit (initial): initial commit" "$(git rev-parse --short HEAD)" >expect &&
git reflog HEAD >actual &&
test_cmp expect actual
)
'
test_expect_success 'mixed writes from JGit and CGit' '
test_when_finished "rm -rf repo" &&
git init repo &&
(
cd repo &&
test_commit A &&
test_commit_jgit B &&
test_commit C &&
test_commit_jgit D &&
test_same_refs &&
test_same_ref HEAD &&
test_same_reflog HEAD
)
'
test_expect_success 'JGit can read multi-level index' '
test_when_finished "rm -rf repo" &&
git init repo &&
(
cd repo &&
test_commit A &&
awk "
BEGIN {
print \"start\";
for (i = 0; i < 10000; i++)
printf \"create refs/heads/branch-%d HEAD\n\", i;
print \"commit\";
}
" >input &&
git update-ref --stdin <input &&
test_same_refs &&
test_same_ref refs/heads/branch-1 &&
test_same_ref refs/heads/branch-5738 &&
test_same_ref refs/heads/branch-9999
)
'
test_done