mirror of
https://github.com/martinvonz/jj.git
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ce5e95fa80
For what's currently called `Store` in the code, I have been using "backend" in plain text. That probably means that `Backend` is a good name for it.
560 lines
22 KiB
Rust
560 lines
22 KiB
Rust
// Copyright 2020 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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use std::sync::Arc;
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use jujutsu_lib::backend::{Conflict, ConflictId, ConflictPart, TreeValue};
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use jujutsu_lib::commit_builder::CommitBuilder;
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use jujutsu_lib::op_store::RefTarget;
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use jujutsu_lib::repo_path::RepoPath;
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use jujutsu_lib::store::Store;
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use jujutsu_lib::testutils;
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use jujutsu_lib::testutils::CommitGraphBuilder;
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use test_case::test_case;
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// TODO Many of the tests here are not run with Git because they end up creating
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// two commits with the same contents.
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#[test_case(false ; "local backend")]
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// #[test_case(true ; "git backend")]
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fn test_checkout_open(use_git: bool) {
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// Test that MutableRepo::check_out() uses the requested commit if it's open
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let settings = testutils::user_settings();
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let (_temp_dir, repo) = testutils::init_repo(&settings, use_git);
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let mut tx = repo.start_transaction("test");
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let requested_checkout = testutils::create_random_commit(&settings, &repo)
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.set_open(true)
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.write_to_repo(tx.mut_repo());
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let repo = tx.commit();
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let mut tx = repo.start_transaction("test");
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let actual_checkout = tx.mut_repo().check_out(&settings, &requested_checkout);
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assert_eq!(actual_checkout.id(), requested_checkout.id());
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let repo = tx.commit();
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assert_eq!(repo.view().checkout(), actual_checkout.id());
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}
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#[test_case(false ; "local backend")]
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// #[test_case(true ; "git backend")]
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fn test_checkout_closed(use_git: bool) {
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// Test that MutableRepo::check_out() creates a child if the requested commit is
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// closed
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let settings = testutils::user_settings();
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let (_temp_dir, repo) = testutils::init_repo(&settings, use_git);
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let mut tx = repo.start_transaction("test");
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let requested_checkout = testutils::create_random_commit(&settings, &repo)
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.set_open(false)
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.write_to_repo(tx.mut_repo());
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let repo = tx.commit();
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let mut tx = repo.start_transaction("test");
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let actual_checkout = tx.mut_repo().check_out(&settings, &requested_checkout);
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assert_eq!(actual_checkout.tree().id(), requested_checkout.tree().id());
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assert_eq!(actual_checkout.parents().len(), 1);
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assert_eq!(actual_checkout.parents()[0].id(), requested_checkout.id());
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let repo = tx.commit();
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assert_eq!(repo.view().checkout(), actual_checkout.id());
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}
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#[test_case(false ; "local backend")]
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// #[test_case(true ; "git backend")]
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fn test_checkout_open_with_conflict(use_git: bool) {
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// Test that MutableRepo::check_out() creates a child if the requested
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// commit is open and has conflicts
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let settings = testutils::user_settings();
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let (_temp_dir, repo) = testutils::init_repo(&settings, use_git);
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let store = repo.store();
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let file_path = RepoPath::from_internal_string("file");
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let conflict_id = write_conflict(store, &file_path);
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let mut tree_builder = repo
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.store()
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.tree_builder(repo.store().empty_tree_id().clone());
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tree_builder.set(file_path.clone(), TreeValue::Conflict(conflict_id));
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let tree_id = tree_builder.write_tree();
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let mut tx = repo.start_transaction("test");
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let requested_checkout = CommitBuilder::for_new_commit(&settings, store, tree_id)
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.set_open(true)
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.write_to_repo(tx.mut_repo());
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let repo = tx.commit();
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let mut tx = repo.start_transaction("test");
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let actual_checkout = tx.mut_repo().check_out(&settings, &requested_checkout);
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let file_value = actual_checkout.tree().path_value(&file_path);
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match file_value {
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Some(TreeValue::Normal {
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id: _,
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executable: false,
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}) => {}
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_ => panic!("unexpected tree value: {:?}", file_value),
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}
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assert_eq!(actual_checkout.parents().len(), 1);
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assert_eq!(actual_checkout.parents()[0].id(), requested_checkout.id());
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let repo = tx.commit();
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assert_eq!(repo.view().checkout(), actual_checkout.id());
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}
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#[test_case(false ; "local backend")]
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// #[test_case(true ; "git backend")]
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fn test_checkout_closed_with_conflict(use_git: bool) {
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// Test that MutableRepo::check_out() creates a child if the requested commit is
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// closed and has conflicts
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let settings = testutils::user_settings();
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let (_temp_dir, repo) = testutils::init_repo(&settings, use_git);
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let store = repo.store();
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let file_path = RepoPath::from_internal_string("file");
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let conflict_id = write_conflict(store, &file_path);
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let mut tree_builder = repo
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.store()
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.tree_builder(repo.store().empty_tree_id().clone());
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tree_builder.set(file_path.clone(), TreeValue::Conflict(conflict_id));
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let tree_id = tree_builder.write_tree();
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let mut tx = repo.start_transaction("test");
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let requested_checkout = CommitBuilder::for_new_commit(&settings, store, tree_id)
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.set_open(false)
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.write_to_repo(tx.mut_repo());
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let repo = tx.commit();
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let mut tx = repo.start_transaction("test");
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let actual_checkout = tx.mut_repo().check_out(&settings, &requested_checkout);
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let file_value = actual_checkout.tree().path_value(&file_path);
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match file_value {
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Some(TreeValue::Normal {
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id: _,
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executable: false,
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}) => {}
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_ => panic!("unexpected tree value: {:?}", file_value),
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}
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assert_eq!(actual_checkout.parents().len(), 1);
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assert_eq!(actual_checkout.parents()[0].id(), requested_checkout.id());
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let repo = tx.commit();
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assert_eq!(repo.view().checkout(), actual_checkout.id());
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}
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fn write_conflict(store: &Arc<Store>, file_path: &RepoPath) -> ConflictId {
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let file_id1 = testutils::write_file(store, file_path, "a\n");
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let file_id2 = testutils::write_file(store, file_path, "b\n");
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let file_id3 = testutils::write_file(store, file_path, "c\n");
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let conflict = Conflict {
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removes: vec![ConflictPart {
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value: TreeValue::Normal {
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id: file_id1,
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executable: false,
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},
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}],
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adds: vec![
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ConflictPart {
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value: TreeValue::Normal {
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id: file_id2,
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executable: false,
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},
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},
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ConflictPart {
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value: TreeValue::Normal {
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id: file_id3,
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executable: false,
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},
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},
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],
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};
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store.write_conflict(&conflict).unwrap()
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}
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#[test_case(false ; "local backend")]
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// #[test_case(true ; "git backend")]
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fn test_checkout_previous_not_empty(use_git: bool) {
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// Test that MutableRepo::check_out() does not usually prune the previous
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// commit.
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let settings = testutils::user_settings();
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let (_temp_dir, repo) = testutils::init_repo(&settings, use_git);
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let mut tx = repo.start_transaction("test");
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let mut_repo = tx.mut_repo();
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let old_checkout = testutils::create_random_commit(&settings, &repo)
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.set_open(true)
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.write_to_repo(mut_repo);
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mut_repo.check_out(&settings, &old_checkout);
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let repo = tx.commit();
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let mut tx = repo.start_transaction("test");
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let mut_repo = tx.mut_repo();
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let new_checkout = testutils::create_random_commit(&settings, &repo)
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.set_open(true)
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.write_to_repo(mut_repo);
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mut_repo.check_out(&settings, &new_checkout);
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assert!(!mut_repo.evolution().is_obsolete(old_checkout.id()));
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tx.discard();
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}
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#[test_case(false ; "local backend")]
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// #[test_case(true ; "git backend")]
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fn test_checkout_previous_empty(use_git: bool) {
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// Test that MutableRepo::check_out() prunes the previous commit if it was
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// empty.
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let settings = testutils::user_settings();
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let (_temp_dir, repo) = testutils::init_repo(&settings, use_git);
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let mut tx = repo.start_transaction("test");
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let mut_repo = tx.mut_repo();
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let old_checkout = CommitBuilder::for_open_commit(
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&settings,
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repo.store(),
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repo.store().root_commit_id().clone(),
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repo.store().empty_tree_id().clone(),
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)
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.write_to_repo(mut_repo);
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mut_repo.check_out(&settings, &old_checkout);
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let repo = tx.commit();
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let mut tx = repo.start_transaction("test");
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let mut_repo = tx.mut_repo();
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let new_checkout = testutils::create_random_commit(&settings, &repo)
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.set_open(true)
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.write_to_repo(mut_repo);
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mut_repo.check_out(&settings, &new_checkout);
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assert!(mut_repo.evolution().is_obsolete(old_checkout.id()));
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tx.discard();
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}
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#[test_case(false ; "local backend")]
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// #[test_case(true ; "git backend")]
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fn test_checkout_previous_empty_and_obsolete(use_git: bool) {
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// Test that MutableRepo::check_out() does not unnecessarily prune the previous
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// commit if it was empty but already obsolete.
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let settings = testutils::user_settings();
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let (_temp_dir, repo) = testutils::init_repo(&settings, use_git);
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let mut tx = repo.start_transaction("test");
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let mut_repo = tx.mut_repo();
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let old_checkout = CommitBuilder::for_open_commit(
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&settings,
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repo.store(),
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repo.store().root_commit_id().clone(),
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repo.store().empty_tree_id().clone(),
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)
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.write_to_repo(mut_repo);
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let successor = CommitBuilder::for_rewrite_from(&settings, repo.store(), &old_checkout)
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.write_to_repo(mut_repo);
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mut_repo.check_out(&settings, &old_checkout);
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let repo = tx.commit();
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let mut tx = repo.start_transaction("test");
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let mut_repo = tx.mut_repo();
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let new_checkout = testutils::create_random_commit(&settings, &repo)
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.set_open(true)
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.write_to_repo(mut_repo);
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mut_repo.check_out(&settings, &new_checkout);
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let successors = mut_repo.evolution().successors(old_checkout.id());
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assert_eq!(successors.len(), 1);
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assert_eq!(successors.iter().next().unwrap(), successor.id());
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tx.discard();
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}
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#[test_case(false ; "local backend")]
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// #[test_case(true ; "git backend")]
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fn test_checkout_previous_empty_and_pruned(use_git: bool) {
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// Test that MutableRepo::check_out() does not unnecessarily prune the previous
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// commit if it was empty but already obsolete.
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let settings = testutils::user_settings();
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let (_temp_dir, repo) = testutils::init_repo(&settings, use_git);
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let mut tx = repo.start_transaction("test");
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let mut_repo = tx.mut_repo();
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let old_checkout = testutils::create_random_commit(&settings, &repo)
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.set_open(true)
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.set_pruned(true)
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.write_to_repo(mut_repo);
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mut_repo.check_out(&settings, &old_checkout);
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let repo = tx.commit();
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let mut tx = repo.start_transaction("test");
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let mut_repo = tx.mut_repo();
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let new_checkout = testutils::create_random_commit(&settings, &repo)
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.set_open(true)
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.write_to_repo(mut_repo);
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mut_repo.check_out(&settings, &new_checkout);
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assert!(mut_repo
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.evolution()
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.successors(old_checkout.id())
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.is_empty());
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tx.discard();
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}
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#[test_case(false ; "local backend")]
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// #[test_case(true ; "git backend")]
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fn test_add_head_success(use_git: bool) {
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// Test that MutableRepo::add_head() adds the head, and that it's still there
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// after commit. It should also be indexed.
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let settings = testutils::user_settings();
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let (_temp_dir, repo) = testutils::init_repo(&settings, use_git);
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// Create a commit outside of the repo by using a temporary transaction. Then
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// add that as a head.
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let mut tx = repo.start_transaction("test");
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let new_commit = testutils::create_random_commit(&settings, &repo).write_to_repo(tx.mut_repo());
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tx.discard();
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let index_stats = repo.index().stats();
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assert_eq!(index_stats.num_heads, 1);
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assert_eq!(index_stats.num_commits, 2);
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assert_eq!(index_stats.max_generation_number, 1);
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let mut tx = repo.start_transaction("test");
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let mut_repo = tx.mut_repo();
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assert!(!mut_repo.view().heads().contains(new_commit.id()));
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assert!(!mut_repo.index().has_id(new_commit.id()));
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mut_repo.add_head(&new_commit);
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assert!(mut_repo.view().heads().contains(new_commit.id()));
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assert!(mut_repo.index().has_id(new_commit.id()));
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let repo = tx.commit();
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assert!(repo.view().heads().contains(new_commit.id()));
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assert!(repo.index().has_id(new_commit.id()));
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let index_stats = repo.index().stats();
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assert_eq!(index_stats.num_heads, 2);
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assert_eq!(index_stats.num_commits, 3);
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assert_eq!(index_stats.max_generation_number, 1);
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}
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#[test_case(false ; "local backend")]
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// #[test_case(true ; "git backend")]
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fn test_add_head_ancestor(use_git: bool) {
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// Test that MutableRepo::add_head() does not add a head if it's an ancestor of
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// an existing head.
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let settings = testutils::user_settings();
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let (_temp_dir, repo) = testutils::init_repo(&settings, use_git);
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let mut tx = repo.start_transaction("test");
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let mut graph_builder = CommitGraphBuilder::new(&settings, tx.mut_repo());
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let commit1 = graph_builder.initial_commit();
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let commit2 = graph_builder.commit_with_parents(&[&commit1]);
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let _commit3 = graph_builder.commit_with_parents(&[&commit2]);
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let repo = tx.commit();
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let index_stats = repo.index().stats();
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assert_eq!(index_stats.num_heads, 2);
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assert_eq!(index_stats.num_commits, 5);
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assert_eq!(index_stats.max_generation_number, 3);
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let mut tx = repo.start_transaction("test");
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let mut_repo = tx.mut_repo();
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mut_repo.add_head(&commit1);
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assert!(!mut_repo.view().heads().contains(commit1.id()));
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let index_stats = mut_repo.index().stats();
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assert_eq!(index_stats.num_heads, 2);
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assert_eq!(index_stats.num_commits, 5);
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assert_eq!(index_stats.max_generation_number, 3);
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tx.discard();
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}
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#[test_case(false ; "local backend")]
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// #[test_case(true ; "git backend")]
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fn test_add_head_not_immediate_child(use_git: bool) {
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// Test that MutableRepo::add_head() can be used for adding a head that is not
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// an immediate child of a current head.
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let settings = testutils::user_settings();
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let (_temp_dir, repo) = testutils::init_repo(&settings, use_git);
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let mut tx = repo.start_transaction("test");
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let initial = testutils::create_random_commit(&settings, &repo).write_to_repo(tx.mut_repo());
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let repo = tx.commit();
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// Create some commit outside of the repo by using a temporary transaction. Then
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// add one of them as a head.
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let mut tx = repo.start_transaction("test");
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let rewritten = testutils::create_random_commit(&settings, &repo)
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.set_change_id(initial.change_id().clone())
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.set_predecessors(vec![initial.id().clone()])
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.write_to_repo(tx.mut_repo());
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let child = testutils::create_random_commit(&settings, &repo)
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.set_parents(vec![rewritten.id().clone()])
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.write_to_repo(tx.mut_repo());
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tx.discard();
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let index_stats = repo.index().stats();
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assert_eq!(index_stats.num_heads, 2);
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assert_eq!(index_stats.num_commits, 3);
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assert_eq!(index_stats.max_generation_number, 1);
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let mut tx = repo.start_transaction("test");
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let mut_repo = tx.mut_repo();
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mut_repo.add_head(&child);
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assert!(mut_repo.view().heads().contains(initial.id()));
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assert!(!mut_repo.view().heads().contains(rewritten.id()));
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assert!(mut_repo.view().heads().contains(child.id()));
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assert!(mut_repo.index().has_id(initial.id()));
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assert!(mut_repo.index().has_id(rewritten.id()));
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assert!(mut_repo.index().has_id(child.id()));
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assert!(mut_repo.evolution().is_obsolete(initial.id()));
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let index_stats = mut_repo.index().stats();
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assert_eq!(index_stats.num_heads, 3);
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assert_eq!(index_stats.num_commits, 5);
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assert_eq!(index_stats.max_generation_number, 2);
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tx.discard();
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}
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#[test_case(false ; "local backend")]
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// #[test_case(true ; "git backend")]
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fn test_remove_head(use_git: bool) {
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// Test that MutableRepo::remove_head() removes the head, and that it's still
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// removed after commit. It should remain in the index, since we otherwise would
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// have to reindex everything.
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// TODO: Consider if it's better to have the index be exactly the commits
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// reachable from the view's heads. We would probably want to add tombstones
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// for commits no longer visible in that case so we don't have to reindex e.g.
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// when the user does `jj op undo`.
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let settings = testutils::user_settings();
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let (_temp_dir, repo) = testutils::init_repo(&settings, use_git);
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let mut tx = repo.start_transaction("test");
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let mut graph_builder = CommitGraphBuilder::new(&settings, tx.mut_repo());
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let commit1 = graph_builder.initial_commit();
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let commit2 = graph_builder.commit_with_parents(&[&commit1]);
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let commit3 = graph_builder.commit_with_parents(&[&commit2]);
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let repo = tx.commit();
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|
|
|
let mut tx = repo.start_transaction("test");
|
|
let mut_repo = tx.mut_repo();
|
|
assert!(mut_repo.view().heads().contains(commit3.id()));
|
|
mut_repo.remove_head(&commit3);
|
|
let heads = mut_repo.view().heads().clone();
|
|
assert!(!heads.contains(commit3.id()));
|
|
assert!(!heads.contains(commit2.id()));
|
|
assert!(!heads.contains(commit1.id()));
|
|
assert!(mut_repo.index().has_id(commit1.id()));
|
|
assert!(mut_repo.index().has_id(commit2.id()));
|
|
assert!(mut_repo.index().has_id(commit3.id()));
|
|
let repo = tx.commit();
|
|
let heads = repo.view().heads().clone();
|
|
assert!(!heads.contains(commit3.id()));
|
|
assert!(!heads.contains(commit2.id()));
|
|
assert!(!heads.contains(commit1.id()));
|
|
assert!(repo.index().has_id(commit1.id()));
|
|
assert!(repo.index().has_id(commit2.id()));
|
|
assert!(repo.index().has_id(commit3.id()));
|
|
}
|
|
|
|
#[test_case(false ; "local backend")]
|
|
// #[test_case(true ; "git backend")]
|
|
fn test_remove_head_ancestor_git_ref(use_git: bool) {
|
|
// Test that MutableRepo::remove_head() does not leave the view with a git ref
|
|
// pointing to a commit that's not reachable by any head.
|
|
let settings = testutils::user_settings();
|
|
let (_temp_dir, repo) = testutils::init_repo(&settings, use_git);
|
|
|
|
let mut tx = repo.start_transaction("test");
|
|
let mut graph_builder = CommitGraphBuilder::new(&settings, tx.mut_repo());
|
|
let commit1 = graph_builder.initial_commit();
|
|
let commit2 = graph_builder.commit_with_parents(&[&commit1]);
|
|
let commit3 = graph_builder.commit_with_parents(&[&commit1]);
|
|
let commit4 = graph_builder.commit_with_parents(&[&commit1]);
|
|
let commit5 = graph_builder.commit_with_parents(&[&commit2, &commit3, &commit4]);
|
|
tx.mut_repo().set_git_ref(
|
|
"refs/heads/main".to_string(),
|
|
RefTarget::Conflict {
|
|
removes: vec![commit2.id().clone()],
|
|
adds: vec![commit3.id().clone(), commit4.id().clone()],
|
|
},
|
|
);
|
|
let repo = tx.commit();
|
|
|
|
let mut tx = repo.start_transaction("test");
|
|
let mut_repo = tx.mut_repo();
|
|
let heads = mut_repo.view().heads().clone();
|
|
assert!(heads.contains(commit5.id()));
|
|
mut_repo.remove_head(&commit5);
|
|
let heads = mut_repo.view().heads().clone();
|
|
assert!(!heads.contains(commit5.id()));
|
|
assert!(heads.contains(commit4.id()));
|
|
assert!(heads.contains(commit3.id()));
|
|
assert!(heads.contains(commit2.id()));
|
|
assert!(!heads.contains(commit1.id()));
|
|
let repo = tx.commit();
|
|
let heads = repo.view().heads().clone();
|
|
assert!(!heads.contains(commit5.id()));
|
|
assert!(heads.contains(commit4.id()));
|
|
assert!(heads.contains(commit3.id()));
|
|
assert!(heads.contains(commit2.id()));
|
|
assert!(!heads.contains(commit1.id()));
|
|
}
|
|
|
|
#[test_case(false ; "local backend")]
|
|
// #[test_case(true ; "git backend")]
|
|
fn test_add_public_head(use_git: bool) {
|
|
// Test that MutableRepo::add_public_head() adds the head, and that it's still
|
|
// there after commit.
|
|
let settings = testutils::user_settings();
|
|
let (_temp_dir, repo) = testutils::init_repo(&settings, use_git);
|
|
|
|
let mut tx = repo.start_transaction("test");
|
|
let commit1 = testutils::create_random_commit(&settings, &repo).write_to_repo(tx.mut_repo());
|
|
let repo = tx.commit();
|
|
|
|
let mut tx = repo.start_transaction("test");
|
|
let mut_repo = tx.mut_repo();
|
|
assert!(!mut_repo.view().public_heads().contains(commit1.id()));
|
|
mut_repo.add_public_head(&commit1);
|
|
assert!(mut_repo.view().public_heads().contains(commit1.id()));
|
|
let repo = tx.commit();
|
|
assert!(repo.view().public_heads().contains(commit1.id()));
|
|
}
|
|
|
|
#[test_case(false ; "local backend")]
|
|
// #[test_case(true ; "git backend")]
|
|
fn test_add_public_head_ancestor(use_git: bool) {
|
|
// Test that MutableRepo::add_public_head() does not add a public head if it's
|
|
// an ancestor of an existing public head.
|
|
let settings = testutils::user_settings();
|
|
let (_temp_dir, repo) = testutils::init_repo(&settings, use_git);
|
|
|
|
let mut tx = repo.start_transaction("test");
|
|
let mut graph_builder = CommitGraphBuilder::new(&settings, tx.mut_repo());
|
|
let commit1 = graph_builder.initial_commit();
|
|
let commit2 = graph_builder.commit_with_parents(&[&commit1]);
|
|
tx.mut_repo().add_public_head(&commit2);
|
|
let repo = tx.commit();
|
|
|
|
let mut tx = repo.start_transaction("test");
|
|
let mut_repo = tx.mut_repo();
|
|
assert!(!mut_repo.view().public_heads().contains(commit1.id()));
|
|
mut_repo.add_public_head(&commit1);
|
|
assert!(!mut_repo.view().public_heads().contains(commit1.id()));
|
|
let repo = tx.commit();
|
|
assert!(!repo.view().public_heads().contains(commit1.id()));
|
|
}
|
|
|
|
#[test_case(false ; "local backend")]
|
|
// #[test_case(true ; "git backend")]
|
|
fn test_remove_public_head(use_git: bool) {
|
|
// Test that MutableRepo::remove_public_head() removes the head, and that it's
|
|
// still removed after commit.
|
|
let settings = testutils::user_settings();
|
|
let (_temp_dir, repo) = testutils::init_repo(&settings, use_git);
|
|
|
|
let mut tx = repo.start_transaction("test");
|
|
let mut_repo = tx.mut_repo();
|
|
let commit1 = testutils::create_random_commit(&settings, &repo).write_to_repo(mut_repo);
|
|
mut_repo.add_public_head(&commit1);
|
|
let repo = tx.commit();
|
|
|
|
let mut tx = repo.start_transaction("test");
|
|
let mut_repo = tx.mut_repo();
|
|
assert!(mut_repo.view().public_heads().contains(commit1.id()));
|
|
mut_repo.remove_public_head(&commit1);
|
|
assert!(!mut_repo.view().public_heads().contains(commit1.id()));
|
|
let repo = tx.commit();
|
|
assert!(!repo.view().public_heads().contains(commit1.id()));
|
|
}
|