jj/tests/test_git_import_export.rs
Yuya Nishihara f8d56e816d cli: print parent commit summary on checkout
On "jj checkout", description of the working-copy commit is empty, and the
working-copy parent provides more information. It might be a bit verbose to
print parent summary on every history rewriting, but I think that's okay.
2023-05-02 15:04:13 +09:00

240 lines
8.9 KiB
Rust

// Copyright 2022 The Jujutsu Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
use std::path::Path;
use itertools::Itertools as _;
use jujutsu_lib::backend::{CommitId, ObjectId as _};
use crate::common::{get_stderr_string, TestEnvironment};
pub mod common;
#[test]
fn test_git_export_conflicting_git_refs() {
let test_env = TestEnvironment::default();
test_env.jj_cmd_success(test_env.env_root(), &["init", "repo", "--git"]);
let repo_path = test_env.env_root().join("repo");
test_env.jj_cmd_success(&repo_path, &["branch", "create", "main"]);
test_env.jj_cmd_success(&repo_path, &["branch", "create", "main/sub"]);
let assert = test_env
.jj_cmd(&repo_path, &["git", "export"])
.assert()
.success()
.stdout("");
insta::assert_snapshot!(get_stderr_string(&assert), @r###"
Failed to export some branches:
main/sub
Hint: Git doesn't allow a branch name that looks like a parent directory of
another (e.g. `foo` and `foo/bar`). Try to rename the branches that failed to
export or their "parent" branches.
"###);
}
#[test]
fn test_git_import_remote_only_branch() {
let test_env = TestEnvironment::default();
test_env.jj_cmd_success(test_env.env_root(), &["init", "repo", "--git"]);
let repo_path = test_env.env_root().join("repo");
// Create non-empty git repo to add as a remote
let git_repo_path = test_env.env_root().join("git-repo");
let git_repo = git2::Repository::init(git_repo_path).unwrap();
let signature =
git2::Signature::new("Some One", "some.one@example.com", &git2::Time::new(0, 0)).unwrap();
let mut tree_builder = git_repo.treebuilder(None).unwrap();
let file_oid = git_repo.blob(b"content").unwrap();
tree_builder
.insert("file", file_oid, git2::FileMode::Blob.into())
.unwrap();
let tree_oid = tree_builder.write().unwrap();
let tree = git_repo.find_tree(tree_oid).unwrap();
test_env.jj_cmd_success(
&repo_path,
&["git", "remote", "add", "origin", "../git-repo"],
);
// Import using default config
git_repo
.commit(
Some("refs/heads/feature1"),
&signature,
&signature,
"message",
&tree,
&[],
)
.unwrap();
test_env.jj_cmd_success(&repo_path, &["git", "fetch", "--remote=origin"]);
insta::assert_snapshot!(get_branch_output(&test_env, &repo_path), @r###"
feature1: 9f01a0e04879 message
"###);
// Import using git.auto_local_branch = false
git_repo
.commit(
Some("refs/heads/feature2"),
&signature,
&signature,
"message",
&tree,
&[],
)
.unwrap();
test_env.add_config("git.auto-local-branch = false");
test_env.jj_cmd_success(&repo_path, &["git", "fetch", "--remote=origin"]);
insta::assert_snapshot!(get_branch_output(&test_env, &repo_path), @r###"
feature1: 9f01a0e04879 message
feature2 (deleted)
@origin: 9f01a0e04879 message
"###);
}
#[test]
fn test_git_export_undo() {
let test_env = TestEnvironment::default();
test_env.jj_cmd_success(test_env.env_root(), &["init", "repo", "--git"]);
let repo_path = test_env.env_root().join("repo");
let git_repo = git2::Repository::open(repo_path.join(".jj/repo/store/git")).unwrap();
test_env.jj_cmd_success(&repo_path, &["branch", "create", "a"]);
insta::assert_snapshot!(get_branch_output(&test_env, &repo_path), @r###"
a: 230dd059e1b0 (no description set)
"###);
insta::assert_snapshot!(test_env.jj_cmd_success(&repo_path, &["git", "export"]), @"");
// "git export" can't be undone.
insta::assert_snapshot!(test_env.jj_cmd_success(&repo_path, &["op", "undo"]), @r###"
"###);
insta::assert_debug_snapshot!(get_git_refs(&git_repo), @r###"
[
(
"refs/heads/a",
CommitId(
"230dd059e1b059aefc0da06a2e5a7dbf22362f22",
),
),
]
"###);
// This would re-export branch "a" as the internal state has been rolled back.
// It might be better to preserve the state, and say "Nothing changed" here.
insta::assert_snapshot!(test_env.jj_cmd_success(&repo_path, &["git", "export"]), @"");
}
#[test]
fn test_git_import_undo() {
let test_env = TestEnvironment::default();
test_env.jj_cmd_success(test_env.env_root(), &["init", "repo", "--git"]);
let repo_path = test_env.env_root().join("repo");
let git_repo = git2::Repository::open(repo_path.join(".jj/repo/store/git")).unwrap();
// Create branch "a" in git repo
let commit_id =
test_env.jj_cmd_success(&repo_path, &["log", "-Tcommit_id", "--no-graph", "-r@"]);
let commit = git_repo
.find_commit(git2::Oid::from_str(&commit_id).unwrap())
.unwrap();
git_repo.branch("a", &commit, true).unwrap();
insta::assert_snapshot!(test_env.jj_cmd_success(&repo_path, &["git", "import"]), @"");
insta::assert_snapshot!(get_branch_output(&test_env, &repo_path), @r###"
a: 230dd059e1b0 (no description set)
"###);
// "git import" can be undone.
insta::assert_snapshot!(test_env.jj_cmd_success(&repo_path, &["op", "undo"]), @r###"
"###);
insta::assert_snapshot!(get_branch_output(&test_env, &repo_path), @"");
// Try "git import" again, which should re-import the branch "a".
insta::assert_snapshot!(test_env.jj_cmd_success(&repo_path, &["git", "import"]), @"");
insta::assert_snapshot!(get_branch_output(&test_env, &repo_path), @r###"
a: 230dd059e1b0 (no description set)
"###);
}
#[test]
fn test_git_import_move_export_undo() {
let test_env = TestEnvironment::default();
test_env.jj_cmd_success(test_env.env_root(), &["init", "repo", "--git"]);
let repo_path = test_env.env_root().join("repo");
let git_repo = git2::Repository::open(repo_path.join(".jj/repo/store/git")).unwrap();
// Create branch "a" in git repo
let commit_id =
test_env.jj_cmd_success(&repo_path, &["log", "-Tcommit_id", "--no-graph", "-r@"]);
let commit = git_repo
.find_commit(git2::Oid::from_str(&commit_id).unwrap())
.unwrap();
git_repo.branch("a", &commit, true).unwrap();
insta::assert_snapshot!(test_env.jj_cmd_success(&repo_path, &["git", "import"]), @"");
insta::assert_snapshot!(get_branch_output(&test_env, &repo_path), @r###"
a: 230dd059e1b0 (no description set)
"###);
// Move branch "a" and export to git repo
test_env.jj_cmd_success(&repo_path, &["new"]);
test_env.jj_cmd_success(&repo_path, &["branch", "set", "a"]);
insta::assert_snapshot!(get_branch_output(&test_env, &repo_path), @r###"
a: 167f90e7600a (no description set)
"###);
insta::assert_snapshot!(test_env.jj_cmd_success(&repo_path, &["git", "export"]), @"");
// "git import" can be undone, but "git export" can't.
insta::assert_snapshot!(test_env.jj_cmd_success(&repo_path, &["op", "restore", "@----"]), @r###"
Working copy now at: 230dd059e1b0 (no description set)
Parent commit : 000000000000 (no description set)
"###);
insta::assert_snapshot!(get_branch_output(&test_env, &repo_path), @"");
insta::assert_debug_snapshot!(get_git_refs(&git_repo), @r###"
[
(
"refs/heads/a",
CommitId(
"167f90e7600a50f85c4f909b53eaf546faa82879",
),
),
]
"###);
// The last branch "a" state is imported from git. No idea what's the most
// intuitive result here.
insta::assert_snapshot!(test_env.jj_cmd_success(&repo_path, &["git", "import"]), @"");
insta::assert_snapshot!(get_branch_output(&test_env, &repo_path), @r###"
a: 167f90e7600a (no description set)
"###);
}
fn get_branch_output(test_env: &TestEnvironment, repo_path: &Path) -> String {
test_env.jj_cmd_success(repo_path, &["branch", "list"])
}
fn get_git_refs(git_repo: &git2::Repository) -> Vec<(String, CommitId)> {
let mut refs: Vec<_> = git_repo
.references()
.unwrap()
.filter_ok(|git_ref| git_ref.is_tag() || git_ref.is_branch() || git_ref.is_remote())
.filter_map_ok(|git_ref| {
let full_name = git_ref.name()?.to_owned();
let git_commit = git_ref.peel_to_commit().ok()?;
let commit_id = CommitId::from_bytes(git_commit.id().as_bytes());
Some((full_name, commit_id))
})
.try_collect()
.unwrap();
refs.sort();
refs
}