jj/cli/tests/test_git_colocated.rs
2023-08-14 22:11:56 -07:00

469 lines
19 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 git2::Oid;
use crate::common::TestEnvironment;
pub mod common;
#[test]
fn test_git_colocated() {
let test_env = TestEnvironment::default();
let workspace_root = test_env.env_root().join("repo");
let git_repo = git2::Repository::init(&workspace_root).unwrap();
// Create an initial commit in Git
std::fs::write(workspace_root.join("file"), "contents").unwrap();
git_repo
.index()
.unwrap()
.add_path(Path::new("file"))
.unwrap();
let tree1_oid = git_repo.index().unwrap().write_tree().unwrap();
let tree1 = git_repo.find_tree(tree1_oid).unwrap();
let signature = git2::Signature::new(
"Someone",
"someone@example.com",
&git2::Time::new(1234567890, 60),
)
.unwrap();
git_repo
.commit(
Some("refs/heads/master"),
&signature,
&signature,
"initial",
&tree1,
&[],
)
.unwrap();
insta::assert_snapshot!(
git_repo.head().unwrap().peel_to_commit().unwrap().id().to_string(),
@"e61b6729ff4292870702f2f72b2a60165679ef37"
);
// Import the repo
test_env.jj_cmd_success(&workspace_root, &["init", "--git-repo", "."]);
insta::assert_snapshot!(get_log_output(&test_env, &workspace_root), @r###"
@ 3e9369cd54227eb88455e1834dbc08aad6a16ac4
◉ e61b6729ff4292870702f2f72b2a60165679ef37 master HEAD@git initial
◉ 0000000000000000000000000000000000000000
"###);
insta::assert_snapshot!(
git_repo.head().unwrap().peel_to_commit().unwrap().id().to_string(),
@"e61b6729ff4292870702f2f72b2a60165679ef37"
);
// Modify the working copy. The working-copy commit should changed, but the Git
// HEAD commit should not
std::fs::write(workspace_root.join("file"), "modified").unwrap();
insta::assert_snapshot!(get_log_output(&test_env, &workspace_root), @r###"
@ b26951a9c6f5c270e4d039880208952fd5faae5e
◉ e61b6729ff4292870702f2f72b2a60165679ef37 master HEAD@git initial
◉ 0000000000000000000000000000000000000000
"###);
insta::assert_snapshot!(
git_repo.head().unwrap().peel_to_commit().unwrap().id().to_string(),
@"e61b6729ff4292870702f2f72b2a60165679ef37"
);
// Create a new change from jj and check that it's reflected in Git
test_env.jj_cmd_success(&workspace_root, &["new"]);
insta::assert_snapshot!(get_log_output(&test_env, &workspace_root), @r###"
@ 9dbb23ff2ff5e66c43880f1042369d704f7a321e
◉ b26951a9c6f5c270e4d039880208952fd5faae5e HEAD@git
◉ e61b6729ff4292870702f2f72b2a60165679ef37 master initial
◉ 0000000000000000000000000000000000000000
"###);
insta::assert_snapshot!(
git_repo.head().unwrap().target().unwrap().to_string(),
@"b26951a9c6f5c270e4d039880208952fd5faae5e"
);
}
#[test]
fn test_git_colocated_export_branches_on_snapshot() {
// Checks that we export branches that were changed only because the working
// copy was snapshotted
let test_env = TestEnvironment::default();
let workspace_root = test_env.env_root().join("repo");
let git_repo = git2::Repository::init(&workspace_root).unwrap();
test_env.jj_cmd_success(&workspace_root, &["init", "--git-repo", "."]);
// Create branch pointing to the initial commit
std::fs::write(workspace_root.join("file"), "initial").unwrap();
test_env.jj_cmd_success(&workspace_root, &["branch", "create", "foo"]);
insta::assert_snapshot!(get_log_output(&test_env, &workspace_root), @r###"
@ 438471f3fbf1004298d8fb01eeb13663a051a643 foo
◉ 0000000000000000000000000000000000000000
"###);
// The branch gets updated when we modify the working copy, and it should get
// exported to Git without requiring any other changes
std::fs::write(workspace_root.join("file"), "modified").unwrap();
insta::assert_snapshot!(get_log_output(&test_env, &workspace_root), @r###"
@ fab22d1acf5bb9c5aa48cb2c3dd2132072a359ca foo
◉ 0000000000000000000000000000000000000000
"###);
insta::assert_snapshot!(git_repo
.find_reference("refs/heads/foo")
.unwrap()
.target()
.unwrap()
.to_string(), @"fab22d1acf5bb9c5aa48cb2c3dd2132072a359ca");
}
#[test]
fn test_git_colocated_rebase_on_import() {
let test_env = TestEnvironment::default();
let workspace_root = test_env.env_root().join("repo");
let git_repo = git2::Repository::init(&workspace_root).unwrap();
test_env.jj_cmd_success(&workspace_root, &["init", "--git-repo", "."]);
// Make some changes in jj and check that they're reflected in git
std::fs::write(workspace_root.join("file"), "contents").unwrap();
test_env.jj_cmd_success(&workspace_root, &["commit", "-m", "add a file"]);
std::fs::write(workspace_root.join("file"), "modified").unwrap();
test_env.jj_cmd_success(&workspace_root, &["branch", "set", "master"]);
test_env.jj_cmd_success(&workspace_root, &["commit", "-m", "modify a file"]);
// TODO: We shouldn't need this command here to trigger an import of the
// refs/heads/master we just exported
test_env.jj_cmd_success(&workspace_root, &["st"]);
// Move `master` and HEAD backwards, which should result in commit2 getting
// hidden, and a new working-copy commit at the new position.
let commit2_oid = git_repo
.find_branch("master", git2::BranchType::Local)
.unwrap()
.get()
.target()
.unwrap();
let commit2 = git_repo.find_commit(commit2_oid).unwrap();
let commit1 = commit2.parents().next().unwrap();
git_repo.branch("master", &commit1, true).unwrap();
git_repo.set_head("refs/heads/master").unwrap();
insta::assert_snapshot!(get_log_output(&test_env, &workspace_root), @r###"
@ 7f96185cfbe36341d0f9a86ebfaeab67a5922c7e
◉ 4bcbeaba9a4b309c5f45a8807fbf5499b9714315 master HEAD@git add a file
◉ 0000000000000000000000000000000000000000
"###);
}
#[test]
fn test_git_colocated_branches() {
let test_env = TestEnvironment::default();
let workspace_root = test_env.env_root().join("repo");
let git_repo = git2::Repository::init(&workspace_root).unwrap();
test_env.jj_cmd_success(&workspace_root, &["init", "--git-repo", "."]);
test_env.jj_cmd_success(&workspace_root, &["new", "-m", "foo"]);
test_env.jj_cmd_success(&workspace_root, &["new", "@-", "-m", "bar"]);
insta::assert_snapshot!(get_log_output(&test_env, &workspace_root), @r###"
@ 3560559274ab431feea00b7b7e0b9250ecce951f bar
│ ◉ 1e6f0b403ed2ff9713b5d6b1dc601e4804250cda foo
├─╯
◉ 230dd059e1b059aefc0da06a2e5a7dbf22362f22 master HEAD@git
◉ 0000000000000000000000000000000000000000
"###);
// Create a branch in jj. It should be exported to Git even though it points to
// the working- copy commit.
test_env.jj_cmd_success(&workspace_root, &["branch", "set", "master"]);
insta::assert_snapshot!(
git_repo.find_reference("refs/heads/master").unwrap().target().unwrap().to_string(),
@"3560559274ab431feea00b7b7e0b9250ecce951f"
);
insta::assert_snapshot!(
git_repo.head().unwrap().target().unwrap().to_string(),
@"230dd059e1b059aefc0da06a2e5a7dbf22362f22"
);
// Update the branch in Git
let target_id = test_env.jj_cmd_success(
&workspace_root,
&["log", "--no-graph", "-T=commit_id", "-r=description(foo)"],
);
git_repo
.reference(
"refs/heads/master",
Oid::from_str(&target_id).unwrap(),
true,
"test",
)
.unwrap();
insta::assert_snapshot!(get_log_output(&test_env, &workspace_root), @r###"
Working copy now at: yqosqzyt 096dc80d (empty) (no description set)
Parent commit : qpvuntsm 230dd059 (empty) (no description set)
@ 096dc80da67094fbaa6683e2a205dddffa31f9a8
│ ◉ 1e6f0b403ed2ff9713b5d6b1dc601e4804250cda master foo
├─╯
◉ 230dd059e1b059aefc0da06a2e5a7dbf22362f22 HEAD@git
◉ 0000000000000000000000000000000000000000
"###);
}
#[test]
fn test_git_colocated_branch_forget() {
let test_env = TestEnvironment::default();
let workspace_root = test_env.env_root().join("repo");
let _git_repo = git2::Repository::init(&workspace_root).unwrap();
test_env.jj_cmd_success(&workspace_root, &["init", "--git-repo", "."]);
test_env.jj_cmd_success(&workspace_root, &["new"]);
test_env.jj_cmd_success(&workspace_root, &["branch", "set", "foo"]);
insta::assert_snapshot!(get_log_output(&test_env, &workspace_root), @r###"
@ 65b6b74e08973b88d38404430f119c8c79465250 foo
◉ 230dd059e1b059aefc0da06a2e5a7dbf22362f22 master HEAD@git
◉ 0000000000000000000000000000000000000000
"###);
let stdout = test_env.jj_cmd_success(&workspace_root, &["branch", "list"]);
insta::assert_snapshot!(stdout, @r###"
foo: rlvkpnrz 65b6b74e (empty) (no description set)
master: qpvuntsm 230dd059 (empty) (no description set)
"###);
let stdout = test_env.jj_cmd_success(&workspace_root, &["branch", "forget", "foo"]);
insta::assert_snapshot!(stdout, @"");
// A forgotten branch is deleted in the git repo. For a detailed demo explaining
// this, see `test_branch_forget_export` in `test_branch_command.rs`.
let stdout = test_env.jj_cmd_success(&workspace_root, &["branch", "list"]);
insta::assert_snapshot!(stdout, @r###"
master: qpvuntsm 230dd059 (empty) (no description set)
"###);
}
#[test]
fn test_git_colocated_conflicting_git_refs() {
let test_env = TestEnvironment::default();
let workspace_root = test_env.env_root().join("repo");
git2::Repository::init(&workspace_root).unwrap();
test_env.jj_cmd_success(&workspace_root, &["init", "--git-repo", "."]);
test_env.jj_cmd_success(&workspace_root, &["branch", "create", "main"]);
let (stdout, stderr) = test_env.jj_cmd_ok(&workspace_root, &["branch", "create", "main/sub"]);
insta::assert_snapshot!(stdout, @"");
insta::assert_snapshot!(stderr, @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_colocated_fetch_deleted_or_moved_branch() {
let test_env = TestEnvironment::default();
let origin_path = test_env.env_root().join("origin");
git2::Repository::init(&origin_path).unwrap();
test_env.jj_cmd_success(&origin_path, &["init", "--git-repo=."]);
test_env.jj_cmd_success(&origin_path, &["describe", "-m=A"]);
test_env.jj_cmd_success(&origin_path, &["branch", "create", "A"]);
test_env.jj_cmd_success(&origin_path, &["new", "-m=B_to_delete"]);
test_env.jj_cmd_success(&origin_path, &["branch", "create", "B_to_delete"]);
test_env.jj_cmd_success(&origin_path, &["new", "-m=original C", "@-"]);
test_env.jj_cmd_success(&origin_path, &["branch", "create", "C_to_move"]);
let clone_path = test_env.env_root().join("clone");
git2::Repository::clone(origin_path.to_str().unwrap(), &clone_path).unwrap();
test_env.jj_cmd_success(&clone_path, &["init", "--git-repo=."]);
test_env.jj_cmd_success(&clone_path, &["new", "A"]);
insta::assert_snapshot!(get_log_output(&test_env, &clone_path), @r###"
@ 0335878796213c3a701f1c9c34dcae242bee4131
│ ◉ 8d4e006fd63547965fbc3a26556a9aa531076d32 C_to_move original C
├─╯
│ ◉ 929e298ae9edf969b405a304c75c10457c47d52c B_to_delete B_to_delete
├─╯
◉ a86754f975f953fa25da4265764adc0c62e9ce6b A master HEAD@git A
◉ 0000000000000000000000000000000000000000
"###);
test_env.jj_cmd_success(&origin_path, &["branch", "delete", "B_to_delete"]);
// Move branch C sideways
test_env.jj_cmd_success(&origin_path, &["describe", "C_to_move", "-m", "moved C"]);
let stdout = test_env.jj_cmd_success(&clone_path, &["git", "fetch"]);
insta::assert_snapshot!(stdout, @"");
// "original C" and "B_to_delete" are abandoned, as the corresponding branches
// were deleted or moved on the remote (#864)
insta::assert_snapshot!(get_log_output(&test_env, &clone_path), @r###"
◉ 04fd29df05638156b20044b3b6136b42abcb09ab C_to_move moved C
│ @ 0335878796213c3a701f1c9c34dcae242bee4131
├─╯
◉ a86754f975f953fa25da4265764adc0c62e9ce6b A master HEAD@git A
◉ 0000000000000000000000000000000000000000
"###);
}
#[test]
fn test_git_colocated_external_checkout() {
let test_env = TestEnvironment::default();
let repo_path = test_env.env_root().join("repo");
let git_repo = git2::Repository::init(&repo_path).unwrap();
test_env.jj_cmd_success(&repo_path, &["init", "--git-repo=."]);
test_env.jj_cmd_success(&repo_path, &["ci", "-m=A"]);
test_env.jj_cmd_success(&repo_path, &["new", "-m=B", "root"]);
test_env.jj_cmd_success(&repo_path, &["new"]);
// Checked out anonymous branch
insta::assert_snapshot!(get_log_output(&test_env, &repo_path), @r###"
@ 53637cd508ff02427dd78eca98f5b2450a6370ce
◉ 66f4d1806ae41bd604f69155dece64062a0056cf HEAD@git B
│ ◉ a86754f975f953fa25da4265764adc0c62e9ce6b master A
├─╯
◉ 0000000000000000000000000000000000000000
"###);
// Check out another branch by external command
git_repo
.set_head_detached(
git_repo
.find_reference("refs/heads/master")
.unwrap()
.target()
.unwrap(),
)
.unwrap();
// The old working-copy commit gets abandoned, but the whole branch should not
// be abandoned. (#1042)
insta::assert_snapshot!(get_log_output(&test_env, &repo_path), @r###"
@ 0521ce3b8c4e29aab79f3c750e2845dcbc4c3874
◉ a86754f975f953fa25da4265764adc0c62e9ce6b master HEAD@git A
│ ◉ 66f4d1806ae41bd604f69155dece64062a0056cf B
├─╯
◉ 0000000000000000000000000000000000000000
"###);
}
#[test]
fn test_git_colocated_squash_undo() {
let test_env = TestEnvironment::default();
let repo_path = test_env.env_root().join("repo");
git2::Repository::init(&repo_path).unwrap();
test_env.jj_cmd_success(&repo_path, &["init", "--git-repo=."]);
test_env.jj_cmd_success(&repo_path, &["ci", "-m=A"]);
// Test the setup
insta::assert_snapshot!(get_log_output_divergence(&test_env, &repo_path), @r###"
@ rlvkpnrzqnoo 8f71e3b6a3be
◉ qpvuntsmwlqt a86754f975f9 A master HEAD@git
◉ zzzzzzzzzzzz 000000000000
"###);
test_env.jj_cmd_success(&repo_path, &["squash"]);
insta::assert_snapshot!(get_log_output_divergence(&test_env, &repo_path), @r###"
@ zsuskulnrvyr f0c12b0396d9
◉ qpvuntsmwlqt 2f376ea1478c A master HEAD@git
◉ zzzzzzzzzzzz 000000000000
"###);
test_env.jj_cmd_success(&repo_path, &["undo"]);
// TODO: There should be no divergence here; 2f376ea1478c should be hidden
// (#922)
insta::assert_snapshot!(get_log_output_divergence(&test_env, &repo_path), @r###"
@ rlvkpnrzqnoo 8f71e3b6a3be
◉ qpvuntsmwlqt a86754f975f9 A master HEAD@git
◉ zzzzzzzzzzzz 000000000000
"###);
}
fn get_log_output_divergence(test_env: &TestEnvironment, repo_path: &Path) -> String {
let template = r#"
separate(" ",
change_id.short(),
commit_id.short(),
description.first_line(),
branches,
git_head,
if(divergent, "!divergence!"),
)
"#;
test_env.jj_cmd_success(repo_path, &["log", "-T", template])
}
fn get_log_output(test_env: &TestEnvironment, workspace_root: &Path) -> String {
let template = r#"separate(" ", commit_id, branches, git_head, description)"#;
test_env.jj_cmd_success(workspace_root, &["log", "-T", template, "-r=all()"])
}
#[test]
fn test_git_colocated_unreachable_commits() {
let test_env = TestEnvironment::default();
let workspace_root = test_env.env_root().join("repo");
let git_repo = git2::Repository::init(&workspace_root).unwrap();
// Create an initial commit in Git
let empty_tree_oid = git_repo.treebuilder(None).unwrap().write().unwrap();
let tree1 = git_repo.find_tree(empty_tree_oid).unwrap();
let signature = git2::Signature::new(
"Someone",
"someone@example.com",
&git2::Time::new(1234567890, 60),
)
.unwrap();
let oid1 = git_repo
.commit(
Some("refs/heads/master"),
&signature,
&signature,
"initial",
&tree1,
&[],
)
.unwrap();
insta::assert_snapshot!(
git_repo.head().unwrap().peel_to_commit().unwrap().id().to_string(),
@"2ee37513d2b5e549f7478c671a780053614bff19"
);
// Add a second commit in Git
let tree2 = git_repo.find_tree(empty_tree_oid).unwrap();
let signature = git2::Signature::new(
"Someone",
"someone@example.com",
&git2::Time::new(1234567890, 62),
)
.unwrap();
let oid2 = git_repo
.commit(
None,
&signature,
&signature,
"next",
&tree2,
&[&git_repo.find_commit(oid1).unwrap()],
)
.unwrap();
insta::assert_snapshot!(
git_repo.head().unwrap().peel_to_commit().unwrap().id().to_string(),
@"2ee37513d2b5e549f7478c671a780053614bff19"
);
// Import the repo while there is no path to the second commit
test_env.jj_cmd_success(&workspace_root, &["init", "--git-repo", "."]);
insta::assert_snapshot!(get_log_output(&test_env, &workspace_root), @r###"
@ 66ae47cee4f8c28ee8d7e4f5d9401b03c07e22f2
◉ 2ee37513d2b5e549f7478c671a780053614bff19 master HEAD@git initial
◉ 0000000000000000000000000000000000000000
"###);
insta::assert_snapshot!(
git_repo.head().unwrap().peel_to_commit().unwrap().id().to_string(),
@"2ee37513d2b5e549f7478c671a780053614bff19"
);
// Check that trying to look up the second commit fails gracefully
let stderr = test_env.jj_cmd_failure(&workspace_root, &["show", &oid2.to_string()]);
insta::assert_snapshot!(stderr, @r###"
Error: Revision "8e713ff77b54928dd4a82aaabeca44b1ae91722c" doesn't exist
"###);
}