forked from mirrors/jj
0108673087
This moves the logic for handling the root commit when writing commits from `CommitBuilder` into the individual backends. It always bothered me a bit that the `commit::Commit` wrapper had a different idea of the number of parents than the wrapped `backend::Commit` had. With this change, the `LocalBackend` will now write the root commit in the list of parents if it's there in the argument to `write_commit()`. Note that root commit itself won't be written. The main argument for not writing it is that we can then keep the fake all-zeros hash for it. One argument for writing it, if we were to do so, is that it would make the set of written objects consistent, so any future processing of them (such as GC) doesn't have to know to ignore the root commit in the list of parents. We still treat the two backends the same, so the user won't be allowed to create merges including the root commit even when using the `LocalBackend`.
134 lines
5.1 KiB
Rust
134 lines
5.1 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::path::{Path, PathBuf};
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use jujutsu_lib::op_store::WorkspaceId;
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use jujutsu_lib::settings::UserSettings;
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use jujutsu_lib::testutils;
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use jujutsu_lib::testutils::TestWorkspace;
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use jujutsu_lib::workspace::Workspace;
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use test_case::test_case;
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fn canonicalize(input: &Path) -> (PathBuf, PathBuf) {
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let uncanonical = input.join("..").join(input.file_name().unwrap());
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let canonical = uncanonical.canonicalize().unwrap();
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(canonical, uncanonical)
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}
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#[test]
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fn test_init_local() {
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let settings = testutils::user_settings();
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let temp_dir = testutils::new_temp_dir();
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let (canonical, uncanonical) = canonicalize(temp_dir.path());
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let (workspace, repo) = Workspace::init_local(&settings, uncanonical).unwrap();
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assert!(repo.store().git_repo().is_none());
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assert_eq!(repo.repo_path(), &canonical.join(".jj").join("repo"));
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assert_eq!(workspace.workspace_root(), &canonical);
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// Just test that we can write a commit to the store
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let mut tx = repo.start_transaction("test");
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testutils::create_random_commit(&settings, &repo).write_to_repo(tx.mut_repo());
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}
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#[test]
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fn test_init_internal_git() {
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let settings = testutils::user_settings();
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let temp_dir = testutils::new_temp_dir();
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let (canonical, uncanonical) = canonicalize(temp_dir.path());
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let (workspace, repo) = Workspace::init_internal_git(&settings, uncanonical).unwrap();
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assert!(repo.store().git_repo().is_some());
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assert_eq!(repo.repo_path(), &canonical.join(".jj").join("repo"));
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assert_eq!(workspace.workspace_root(), &canonical);
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// Just test that we ca write a commit to the store
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let mut tx = repo.start_transaction("test");
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testutils::create_random_commit(&settings, &repo).write_to_repo(tx.mut_repo());
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}
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#[test]
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fn test_init_external_git() {
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let settings = testutils::user_settings();
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let temp_dir = testutils::new_temp_dir();
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let (canonical, uncanonical) = canonicalize(temp_dir.path());
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let git_repo_path = uncanonical.join("git");
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git2::Repository::init(&git_repo_path).unwrap();
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std::fs::create_dir(&uncanonical.join("jj")).unwrap();
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let (workspace, repo) =
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Workspace::init_external_git(&settings, uncanonical.join("jj"), git_repo_path).unwrap();
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assert!(repo.store().git_repo().is_some());
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assert_eq!(
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repo.repo_path(),
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&canonical.join("jj").join(".jj").join("repo")
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);
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assert_eq!(workspace.workspace_root(), &canonical.join("jj"));
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// Just test that we can write a commit to the store
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let mut tx = repo.start_transaction("test");
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testutils::create_random_commit(&settings, &repo).write_to_repo(tx.mut_repo());
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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_init_no_config_set(use_git: bool) {
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// Test that we can create a repo without setting any config
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let settings = UserSettings::from_config(config::Config::default());
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let test_workspace = TestWorkspace::init(&settings, use_git);
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let repo = &test_workspace.repo;
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let wc_commit_id = repo
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.view()
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.get_wc_commit_id(&WorkspaceId::default())
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.unwrap();
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let wc_commit = repo.store().get_commit(wc_commit_id).unwrap();
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assert_eq!(wc_commit.author().name, "(no name configured)".to_string());
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assert_eq!(
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wc_commit.author().email,
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"(no email configured)".to_string()
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);
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assert_eq!(
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wc_commit.committer().name,
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"(no name configured)".to_string()
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);
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assert_eq!(
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wc_commit.committer().email,
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"(no email configured)".to_string()
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);
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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_init_checkout(use_git: bool) {
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// Test the contents of the checkout after init
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let settings = testutils::user_settings();
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let test_workspace = TestWorkspace::init(&settings, use_git);
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let repo = &test_workspace.repo;
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let wc_commit_id = repo
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.view()
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.get_wc_commit_id(&WorkspaceId::default())
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.unwrap();
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let wc_commit = repo.store().get_commit(wc_commit_id).unwrap();
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assert_eq!(wc_commit.tree_id(), repo.store().empty_tree_id());
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assert_eq!(
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wc_commit.store_commit().parents,
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vec![repo.store().root_commit_id().clone()]
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);
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assert_eq!(wc_commit.predecessors(), vec![]);
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assert_eq!(wc_commit.description(), "");
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assert!(wc_commit.is_open());
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assert_eq!(wc_commit.author().name, settings.user_name());
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assert_eq!(wc_commit.author().email, settings.user_email());
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assert_eq!(wc_commit.committer().name, settings.user_name());
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assert_eq!(wc_commit.committer().email, settings.user_email());
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}
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