mirror of
https://github.com/martinvonz/jj.git
synced 2024-10-24 15:43:12 +00:00
33bf6ce1d5
If you rewrite a commit that's also available on some remote, you'll currently see both the old version and the new version in the view, which means they're divergent. They're not logically divergent (the rewritten version should replace the old version), so this is a UX bug. I think it indicates that the set of current heads should be redefined to be the *desired* heads. That's also what I had suspected in the TODO removed by this change. I think another indication that we should hide the old heads even if they have e.g. a remote branch pointing to them is that we don't want them to be rebased if we rewrite an ancestor. So that's what I decided to do: let the view's heads be the desired heads. The user can still define revsets for showing non-current commits pointed to by e.g. remote branches.
524 lines
22 KiB
Rust
524 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::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::{assert_rebased, 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 abandon 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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mut_repo.create_descendant_rebaser(&settings).rebase_all();
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assert!(mut_repo.view().heads().contains(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() abandons 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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mut_repo.create_descendant_rebaser(&settings).rebase_all();
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assert!(!mut_repo.view().heads().contains(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_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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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");
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let mut_repo = tx.mut_repo();
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assert!(mut_repo.view().heads().contains(commit3.id()));
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mut_repo.remove_head(commit3.id());
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let heads = mut_repo.view().heads().clone();
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assert!(!heads.contains(commit3.id()));
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assert!(!heads.contains(commit2.id()));
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assert!(!heads.contains(commit1.id()));
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assert!(mut_repo.index().has_id(commit1.id()));
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assert!(mut_repo.index().has_id(commit2.id()));
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assert!(mut_repo.index().has_id(commit3.id()));
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let repo = tx.commit();
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let heads = repo.view().heads().clone();
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assert!(!heads.contains(commit3.id()));
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assert!(!heads.contains(commit2.id()));
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assert!(!heads.contains(commit1.id()));
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assert!(repo.index().has_id(commit1.id()));
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assert!(repo.index().has_id(commit2.id()));
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assert!(repo.index().has_id(commit3.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_add_public_head(use_git: bool) {
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// Test that MutableRepo::add_public_head() adds the head, and that it's still
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// there after 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 commit1 = testutils::create_random_commit(&settings, &repo).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 mut_repo = tx.mut_repo();
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assert!(!mut_repo.view().public_heads().contains(commit1.id()));
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mut_repo.add_public_head(&commit1);
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assert!(mut_repo.view().public_heads().contains(commit1.id()));
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let repo = tx.commit();
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assert!(repo.view().public_heads().contains(commit1.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_add_public_head_ancestor(use_git: bool) {
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// Test that MutableRepo::add_public_head() does not add a public head if it's
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// an ancestor of an existing public 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());
|
|
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.id());
|
|
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_rebase_descendants_simple(use_git: bool) {
|
|
// Tests that MutableRepo::create_descendant_rebaser() creates a
|
|
// DescendantRebaser that rebases descendants of rewritten and abandoned
|
|
// commits.
|
|
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(&[&commit2]);
|
|
let commit4 = graph_builder.commit_with_parents(&[&commit1]);
|
|
let commit5 = graph_builder.commit_with_parents(&[&commit4]);
|
|
let repo = tx.commit();
|
|
|
|
let mut tx = repo.start_transaction("test");
|
|
let mut_repo = tx.mut_repo();
|
|
let mut graph_builder = CommitGraphBuilder::new(&settings, mut_repo);
|
|
let commit6 = graph_builder.commit_with_parents(&[&commit1]);
|
|
mut_repo.record_rewritten_commit(commit2.id().clone(), commit6.id().clone());
|
|
mut_repo.record_abandoned_commit(commit4.id().clone());
|
|
let mut rebaser = mut_repo.create_descendant_rebaser(&settings);
|
|
// Commit 3 got rebased onto commit 2's replacement, i.e. commit 6
|
|
assert_rebased(rebaser.rebase_next(), &commit3, &[&commit6]);
|
|
// Commit 5 got rebased onto commit 4's parent, i.e. commit 1
|
|
assert_rebased(rebaser.rebase_next(), &commit5, &[&commit1]);
|
|
assert!(rebaser.rebase_next().is_none());
|
|
// No more descendants to rebase if we try again.
|
|
assert!(mut_repo
|
|
.create_descendant_rebaser(&settings)
|
|
.rebase_next()
|
|
.is_none());
|
|
tx.discard();
|
|
}
|
|
|
|
#[test_case(false ; "local backend")]
|
|
#[test_case(true ; "git backend")]
|
|
fn test_rebase_descendants_conflicting_rewrite(use_git: bool) {
|
|
// Tests MutableRepo::create_descendant_rebaser() when a commit has been marked
|
|
// as rewritten to several other commits.
|
|
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(&[&commit2]);
|
|
let repo = tx.commit();
|
|
|
|
let mut tx = repo.start_transaction("test");
|
|
let mut_repo = tx.mut_repo();
|
|
let mut graph_builder = CommitGraphBuilder::new(&settings, mut_repo);
|
|
let commit4 = graph_builder.commit_with_parents(&[&commit1]);
|
|
let commit5 = graph_builder.commit_with_parents(&[&commit1]);
|
|
mut_repo.record_rewritten_commit(commit2.id().clone(), commit4.id().clone());
|
|
mut_repo.record_rewritten_commit(commit2.id().clone(), commit5.id().clone());
|
|
let mut rebaser = mut_repo.create_descendant_rebaser(&settings);
|
|
// Commit 3 does *not* get rebased because it's unclear if it should go onto
|
|
// commit 4 or commit 5
|
|
assert!(rebaser.rebase_next().is_none());
|
|
// No more descendants to rebase if we try again.
|
|
assert!(mut_repo
|
|
.create_descendant_rebaser(&settings)
|
|
.rebase_next()
|
|
.is_none());
|
|
tx.discard();
|
|
}
|