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Diffstat (limited to 't/t1460-refs-migrate.sh')
| -rwxr-xr-x | t/t1460-refs-migrate.sh | 243 |
1 files changed, 243 insertions, 0 deletions
diff --git a/t/t1460-refs-migrate.sh b/t/t1460-refs-migrate.sh new file mode 100755 index 0000000000..f7c0783d30 --- /dev/null +++ b/t/t1460-refs-migrate.sh @@ -0,0 +1,243 @@ +#!/bin/sh + +test_description='migration of ref storage backends' + +GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main +export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME + +TEST_PASSES_SANITIZE_LEAK=true +. ./test-lib.sh + +test_migration () { + git -C "$1" for-each-ref --include-root-refs \ + --format='%(refname) %(objectname) %(symref)' >expect && + git -C "$1" refs migrate --ref-format="$2" && + git -C "$1" for-each-ref --include-root-refs \ + --format='%(refname) %(objectname) %(symref)' >actual && + test_cmp expect actual && + + git -C "$1" rev-parse --show-ref-format >actual && + echo "$2" >expect && + test_cmp expect actual +} + +test_expect_success 'setup' ' + rm -rf .git && + # The migration does not yet support reflogs. + git config --global core.logAllRefUpdates false +' + +test_expect_success "superfluous arguments" ' + test_when_finished "rm -rf repo" && + git init repo && + test_must_fail git -C repo refs migrate foo 2>err && + cat >expect <<-EOF && + usage: too many arguments + EOF + test_cmp expect err +' + +test_expect_success "missing ref storage format" ' + test_when_finished "rm -rf repo" && + git init repo && + test_must_fail git -C repo refs migrate 2>err && + cat >expect <<-EOF && + usage: missing --ref-format=<format> + EOF + test_cmp expect err +' + +test_expect_success "unknown ref storage format" ' + test_when_finished "rm -rf repo" && + git init repo && + test_must_fail git -C repo refs migrate \ + --ref-format=unknown 2>err && + cat >expect <<-EOF && + error: unknown ref storage format ${SQ}unknown${SQ} + EOF + test_cmp expect err +' + +ref_formats="files reftable" +for from_format in $ref_formats +do + for to_format in $ref_formats + do + if test "$from_format" = "$to_format" + then + continue + fi + + test_expect_success "$from_format: migration to same format fails" ' + test_when_finished "rm -rf repo" && + git init --ref-format=$from_format repo && + test_must_fail git -C repo refs migrate \ + --ref-format=$from_format 2>err && + cat >expect <<-EOF && + error: repository already uses ${SQ}$from_format${SQ} format + EOF + test_cmp expect err + ' + + test_expect_success "$from_format -> $to_format: migration with reflog fails" ' + test_when_finished "rm -rf repo" && + git init --ref-format=$from_format repo && + test_config -C repo core.logAllRefUpdates true && + test_commit -C repo logged && + test_must_fail git -C repo refs migrate \ + --ref-format=$to_format 2>err && + cat >expect <<-EOF && + error: migrating reflogs is not supported yet + EOF + test_cmp expect err + ' + + test_expect_success "$from_format -> $to_format: migration with worktree fails" ' + test_when_finished "rm -rf repo" && + git init --ref-format=$from_format repo && + git -C repo worktree add wt && + test_must_fail git -C repo refs migrate \ + --ref-format=$to_format 2>err && + cat >expect <<-EOF && + error: migrating repositories with worktrees is not supported yet + EOF + test_cmp expect err + ' + + test_expect_success "$from_format -> $to_format: unborn HEAD" ' + test_when_finished "rm -rf repo" && + git init --ref-format=$from_format repo && + test_migration repo "$to_format" + ' + + test_expect_success "$from_format -> $to_format: single ref" ' + test_when_finished "rm -rf repo" && + git init --ref-format=$from_format repo && + test_commit -C repo initial && + test_migration repo "$to_format" + ' + + test_expect_success "$from_format -> $to_format: bare repository" ' + test_when_finished "rm -rf repo repo.git" && + git init --ref-format=$from_format repo && + test_commit -C repo initial && + git clone --ref-format=$from_format --mirror repo repo.git && + test_migration repo.git "$to_format" + ' + + test_expect_success "$from_format -> $to_format: dangling symref" ' + test_when_finished "rm -rf repo" && + git init --ref-format=$from_format repo && + test_commit -C repo initial && + git -C repo symbolic-ref BROKEN_HEAD refs/heads/nonexistent && + test_migration repo "$to_format" && + echo refs/heads/nonexistent >expect && + git -C repo symbolic-ref BROKEN_HEAD >actual && + test_cmp expect actual + ' + + test_expect_success "$from_format -> $to_format: broken ref" ' + test_when_finished "rm -rf repo" && + git init --ref-format=$from_format repo && + test_commit -C repo initial && + test-tool -C repo ref-store main update-ref "" refs/heads/broken \ + "$(test_oid 001)" "$ZERO_OID" REF_SKIP_CREATE_REFLOG,REF_SKIP_OID_VERIFICATION && + test_migration repo "$to_format" && + test_oid 001 >expect && + git -C repo rev-parse refs/heads/broken >actual && + test_cmp expect actual + ' + + test_expect_success "$from_format -> $to_format: pseudo-refs" ' + test_when_finished "rm -rf repo" && + git init --ref-format=$from_format repo && + test_commit -C repo initial && + git -C repo update-ref FOO_HEAD HEAD && + test_migration repo "$to_format" + ' + + test_expect_success "$from_format -> $to_format: special refs are left alone" ' + test_when_finished "rm -rf repo" && + git init --ref-format=$from_format repo && + test_commit -C repo initial && + git -C repo rev-parse HEAD >repo/.git/MERGE_HEAD && + git -C repo rev-parse MERGE_HEAD && + test_migration repo "$to_format" && + test_path_is_file repo/.git/MERGE_HEAD + ' + + test_expect_success "$from_format -> $to_format: a bunch of refs" ' + test_when_finished "rm -rf repo" && + git init --ref-format=$from_format repo && + + test_commit -C repo initial && + cat >input <<-EOF && + create FOO_HEAD HEAD + create refs/heads/branch-1 HEAD + create refs/heads/branch-2 HEAD + create refs/heads/branch-3 HEAD + create refs/heads/branch-4 HEAD + create refs/tags/tag-1 HEAD + create refs/tags/tag-2 HEAD + EOF + git -C repo update-ref --stdin <input && + test_migration repo "$to_format" + ' + + test_expect_success "$from_format -> $to_format: dry-run migration does not modify repository" ' + test_when_finished "rm -rf repo" && + git init --ref-format=$from_format repo && + test_commit -C repo initial && + git -C repo refs migrate --dry-run \ + --ref-format=$to_format >output && + grep "Finished dry-run migration of refs" output && + test_path_is_dir repo/.git/ref_migration.* && + echo $from_format >expect && + git -C repo rev-parse --show-ref-format >actual && + test_cmp expect actual + ' + done +done + +test_expect_success 'migrating from files format deletes backend files' ' + test_when_finished "rm -rf repo" && + git init --ref-format=files repo && + test_commit -C repo first && + git -C repo pack-refs --all && + test_commit -C repo second && + git -C repo update-ref ORIG_HEAD HEAD && + git -C repo rev-parse HEAD >repo/.git/FETCH_HEAD && + + test_path_is_file repo/.git/HEAD && + test_path_is_file repo/.git/ORIG_HEAD && + test_path_is_file repo/.git/refs/heads/main && + test_path_is_file repo/.git/packed-refs && + + test_migration repo reftable && + + echo "ref: refs/heads/.invalid" >expect && + test_cmp expect repo/.git/HEAD && + echo "this repository uses the reftable format" >expect && + test_cmp expect repo/.git/refs/heads && + test_path_is_file repo/.git/FETCH_HEAD && + test_path_is_missing repo/.git/ORIG_HEAD && + test_path_is_missing repo/.git/refs/heads/main && + test_path_is_missing repo/.git/logs && + test_path_is_missing repo/.git/packed-refs +' + +test_expect_success 'migrating from reftable format deletes backend files' ' + test_when_finished "rm -rf repo" && + git init --ref-format=reftable repo && + test_commit -C repo first && + + test_path_is_dir repo/.git/reftable && + test_migration repo files && + + test_path_is_missing repo/.git/reftable && + echo "ref: refs/heads/main" >expect && + test_cmp expect repo/.git/HEAD && + test_path_is_file repo/.git/refs/heads/main +' + +test_done |