forked from mirrors/jj
9502d84872
We currently get the hostname and username from the `whoami` crate. We do that in lib crate, without giving the caller a way to override them. That seems wrong since it might be used in a server and performing operations on behalf of some other user. This commit makes the hostname and username configurable, so the calling crate can pass them in. If they have not been passed in, we still default to the values from the `whoami` crate.
1151 lines
39 KiB
Rust
1151 lines
39 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::PathBuf;
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use std::sync::Arc;
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use git2::Oid;
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use jujutsu_lib::backend::CommitId;
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use jujutsu_lib::commit::Commit;
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use jujutsu_lib::git;
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use jujutsu_lib::git::{GitFetchError, GitPushError, GitRefUpdate};
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use jujutsu_lib::git_backend::GitBackend;
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use jujutsu_lib::op_store::{BranchTarget, RefTarget};
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use jujutsu_lib::repo::ReadonlyRepo;
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use jujutsu_lib::settings::UserSettings;
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use maplit::{btreemap, hashset};
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use tempfile::TempDir;
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use testutils::{create_random_commit, TestRepo};
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fn empty_git_commit<'r>(
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git_repo: &'r git2::Repository,
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ref_name: &str,
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parents: &[&git2::Commit],
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) -> git2::Commit<'r> {
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let signature = git2::Signature::now("Someone", "someone@example.com").unwrap();
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let empty_tree_id = Oid::from_str("4b825dc642cb6eb9a060e54bf8d69288fbee4904").unwrap();
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let empty_tree = git_repo.find_tree(empty_tree_id).unwrap();
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let oid = git_repo
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.commit(
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Some(ref_name),
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&signature,
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&signature,
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&format!("random commit {}", rand::random::<u32>()),
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&empty_tree,
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parents,
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)
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.unwrap();
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git_repo.find_commit(oid).unwrap()
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}
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fn jj_id(commit: &git2::Commit) -> CommitId {
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CommitId::from_bytes(commit.id().as_bytes())
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}
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fn git_id(commit: &Commit) -> Oid {
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Oid::from_bytes(commit.id().as_bytes()).unwrap()
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}
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#[test]
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fn test_import_refs() {
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let settings = testutils::user_settings();
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let test_repo = TestRepo::init(true);
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let repo = &test_repo.repo;
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let git_repo = repo.store().git_repo().unwrap();
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let commit1 = empty_git_commit(&git_repo, "refs/heads/main", &[]);
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git_ref(&git_repo, "refs/remotes/origin/main", commit1.id());
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let commit2 = empty_git_commit(&git_repo, "refs/heads/main", &[&commit1]);
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let commit3 = empty_git_commit(&git_repo, "refs/heads/feature1", &[&commit2]);
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let commit4 = empty_git_commit(&git_repo, "refs/heads/feature2", &[&commit2]);
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let commit5 = empty_git_commit(&git_repo, "refs/tags/v1.0", &[&commit1]);
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// Should not be imported
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empty_git_commit(&git_repo, "refs/notes/x", &[&commit2]);
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empty_git_commit(&git_repo, "refs/remotes/origin/HEAD", &[&commit2]);
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git_repo.set_head("refs/heads/main").unwrap();
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let git_repo = repo.store().git_repo().unwrap();
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let mut tx = repo.start_transaction(&settings, "test");
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git::import_refs(tx.mut_repo(), &git_repo).unwrap();
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tx.mut_repo().rebase_descendants(&settings).unwrap();
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let repo = tx.commit();
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let view = repo.view();
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let expected_heads = hashset! {
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jj_id(&commit3),
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jj_id(&commit4),
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jj_id(&commit5)
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};
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assert_eq!(*view.heads(), expected_heads);
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let expected_main_branch = BranchTarget {
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local_target: Some(RefTarget::Normal(jj_id(&commit2))),
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remote_targets: btreemap! {
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"origin".to_string() => RefTarget::Normal(jj_id(&commit1)),
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},
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};
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assert_eq!(
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view.branches().get("main"),
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Some(expected_main_branch).as_ref()
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);
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let expected_feature1_branch = BranchTarget {
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local_target: Some(RefTarget::Normal(jj_id(&commit3))),
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remote_targets: btreemap! {},
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};
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assert_eq!(
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view.branches().get("feature1"),
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Some(expected_feature1_branch).as_ref()
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);
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let expected_feature2_branch = BranchTarget {
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local_target: Some(RefTarget::Normal(jj_id(&commit4))),
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remote_targets: btreemap! {},
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};
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assert_eq!(
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view.branches().get("feature2"),
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Some(expected_feature2_branch).as_ref()
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);
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assert_eq!(
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view.tags().get("v1.0"),
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Some(RefTarget::Normal(jj_id(&commit5))).as_ref()
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);
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assert_eq!(view.git_refs().len(), 5);
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assert_eq!(
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view.git_refs().get("refs/heads/main"),
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Some(RefTarget::Normal(jj_id(&commit2))).as_ref()
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);
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assert_eq!(
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view.git_refs().get("refs/heads/feature1"),
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Some(RefTarget::Normal(jj_id(&commit3))).as_ref()
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);
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assert_eq!(
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view.git_refs().get("refs/heads/feature2"),
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Some(RefTarget::Normal(jj_id(&commit4))).as_ref()
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);
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assert_eq!(
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view.git_refs().get("refs/remotes/origin/main"),
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Some(RefTarget::Normal(jj_id(&commit1))).as_ref()
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);
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assert_eq!(
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view.git_refs().get("refs/tags/v1.0"),
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Some(RefTarget::Normal(jj_id(&commit5))).as_ref()
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);
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assert_eq!(view.git_head(), Some(jj_id(&commit2)));
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}
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#[test]
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fn test_import_refs_reimport() {
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let settings = testutils::user_settings();
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let test_workspace = TestRepo::init(true);
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let repo = &test_workspace.repo;
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let git_repo = repo.store().git_repo().unwrap();
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let commit1 = empty_git_commit(&git_repo, "refs/heads/main", &[]);
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git_ref(&git_repo, "refs/remotes/origin/main", commit1.id());
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let commit2 = empty_git_commit(&git_repo, "refs/heads/main", &[&commit1]);
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let _commit3 = empty_git_commit(&git_repo, "refs/heads/feature1", &[&commit2]);
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let commit4 = empty_git_commit(&git_repo, "refs/heads/feature2", &[&commit2]);
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let pgp_key_oid = git_repo.blob(b"my PGP key").unwrap();
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git_repo
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.reference("refs/tags/my-gpg-key", pgp_key_oid, false, "")
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.unwrap();
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let mut tx = repo.start_transaction(&settings, "test");
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git::import_refs(tx.mut_repo(), &git_repo).unwrap();
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tx.mut_repo().rebase_descendants(&settings).unwrap();
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let repo = tx.commit();
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// Delete feature1 and rewrite feature2
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delete_git_ref(&git_repo, "refs/heads/feature1");
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delete_git_ref(&git_repo, "refs/heads/feature2");
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let commit5 = empty_git_commit(&git_repo, "refs/heads/feature2", &[&commit2]);
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// Also modify feature2 on the jj side
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let mut tx = repo.start_transaction(&settings, "test");
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let commit6 = create_random_commit(&settings, &repo)
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.set_parents(vec![jj_id(&commit2)])
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.write_to_repo(tx.mut_repo());
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tx.mut_repo().set_local_branch(
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"feature2".to_string(),
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RefTarget::Normal(commit6.id().clone()),
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);
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let repo = tx.commit();
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let mut tx = repo.start_transaction(&settings, "test");
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git::import_refs(tx.mut_repo(), &git_repo).unwrap();
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tx.mut_repo().rebase_descendants(&settings).unwrap();
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let repo = tx.commit();
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let view = repo.view();
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let expected_heads = hashset! {
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jj_id(&commit5),
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commit6.id().clone(),
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};
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assert_eq!(*view.heads(), expected_heads);
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assert_eq!(view.branches().len(), 2);
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let commit1_target = RefTarget::Normal(jj_id(&commit1));
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let commit2_target = RefTarget::Normal(jj_id(&commit2));
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let expected_main_branch = BranchTarget {
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local_target: Some(RefTarget::Normal(jj_id(&commit2))),
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remote_targets: btreemap! {
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"origin".to_string() => commit1_target.clone(),
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},
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};
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assert_eq!(
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view.branches().get("main"),
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Some(expected_main_branch).as_ref()
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);
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let expected_feature2_branch = BranchTarget {
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local_target: Some(RefTarget::Conflict {
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removes: vec![jj_id(&commit4)],
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adds: vec![commit6.id().clone(), jj_id(&commit5)],
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}),
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remote_targets: btreemap! {},
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};
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assert_eq!(
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view.branches().get("feature2"),
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Some(expected_feature2_branch).as_ref()
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);
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assert!(view.tags().is_empty());
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assert_eq!(view.git_refs().len(), 3);
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assert_eq!(
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view.git_refs().get("refs/heads/main"),
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Some(commit2_target).as_ref()
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);
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assert_eq!(
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view.git_refs().get("refs/remotes/origin/main"),
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Some(commit1_target).as_ref()
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);
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let commit5_target = RefTarget::Normal(jj_id(&commit5));
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assert_eq!(
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view.git_refs().get("refs/heads/feature2"),
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Some(commit5_target).as_ref()
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);
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}
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#[test]
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fn test_import_refs_reimport_head_removed() {
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// Test that re-importing refs doesn't cause a deleted head to come back
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let settings = testutils::user_settings();
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let test_repo = TestRepo::init(true);
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let repo = &test_repo.repo;
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let git_repo = repo.store().git_repo().unwrap();
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let commit = empty_git_commit(&git_repo, "refs/heads/main", &[]);
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let mut tx = repo.start_transaction(&settings, "test");
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git::import_refs(tx.mut_repo(), &git_repo).unwrap();
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tx.mut_repo().rebase_descendants(&settings).unwrap();
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let commit_id = jj_id(&commit);
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// Test the setup
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assert!(tx.mut_repo().view().heads().contains(&commit_id));
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// Remove the head and re-import
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tx.mut_repo().remove_head(&commit_id);
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git::import_refs(tx.mut_repo(), &git_repo).unwrap();
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tx.mut_repo().rebase_descendants(&settings).unwrap();
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assert!(!tx.mut_repo().view().heads().contains(&commit_id));
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}
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#[test]
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fn test_import_refs_reimport_git_head_counts() {
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// Test that if a branch is removed but the Git HEAD points to the commit (or a
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// descendant of it), we still keep it alive.
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let settings = testutils::user_settings();
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let test_repo = TestRepo::init(true);
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let repo = &test_repo.repo;
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let git_repo = repo.store().git_repo().unwrap();
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let commit = empty_git_commit(&git_repo, "refs/heads/main", &[]);
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git_repo.set_head_detached(commit.id()).unwrap();
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let mut tx = repo.start_transaction(&settings, "test");
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git::import_refs(tx.mut_repo(), &git_repo).unwrap();
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tx.mut_repo().rebase_descendants(&settings).unwrap();
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// Delete the branch and re-import. The commit should still be there since HEAD
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// points to it
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git_repo
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.find_reference("refs/heads/main")
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.unwrap()
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.delete()
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.unwrap();
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git::import_refs(tx.mut_repo(), &git_repo).unwrap();
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tx.mut_repo().rebase_descendants(&settings).unwrap();
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assert!(tx.mut_repo().view().heads().contains(&jj_id(&commit)));
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}
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#[test]
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fn test_import_refs_reimport_all_from_root_removed() {
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// Test that if a chain of commits all the way from the root gets unreferenced,
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// we abandon the whole stack, but not including the root commit.
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let settings = testutils::user_settings();
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let test_repo = TestRepo::init(true);
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let repo = &test_repo.repo;
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let git_repo = repo.store().git_repo().unwrap();
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let commit = empty_git_commit(&git_repo, "refs/heads/main", &[]);
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let mut tx = repo.start_transaction(&settings, "test");
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git::import_refs(tx.mut_repo(), &git_repo).unwrap();
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tx.mut_repo().rebase_descendants(&settings).unwrap();
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// Test the setup
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assert!(tx.mut_repo().view().heads().contains(&jj_id(&commit)));
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// Remove all git refs and re-import
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git_repo
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.find_reference("refs/heads/main")
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.unwrap()
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.delete()
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.unwrap();
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git::import_refs(tx.mut_repo(), &git_repo).unwrap();
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tx.mut_repo().rebase_descendants(&settings).unwrap();
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assert!(!tx.mut_repo().view().heads().contains(&jj_id(&commit)));
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}
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fn git_ref(git_repo: &git2::Repository, name: &str, target: Oid) {
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git_repo.reference(name, target, true, "").unwrap();
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}
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fn delete_git_ref(git_repo: &git2::Repository, name: &str) {
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git_repo.find_reference(name).unwrap().delete().unwrap();
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}
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struct GitRepoData {
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settings: UserSettings,
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_temp_dir: TempDir,
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origin_repo: git2::Repository,
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git_repo: git2::Repository,
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repo: Arc<ReadonlyRepo>,
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}
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impl GitRepoData {
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fn create() -> Self {
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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 origin_repo_dir = temp_dir.path().join("source");
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let origin_repo = git2::Repository::init_bare(&origin_repo_dir).unwrap();
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let git_repo_dir = temp_dir.path().join("git");
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let git_repo =
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git2::Repository::clone(origin_repo_dir.to_str().unwrap(), &git_repo_dir).unwrap();
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let jj_repo_dir = temp_dir.path().join("jj");
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std::fs::create_dir(&jj_repo_dir).unwrap();
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let repo = ReadonlyRepo::init(&settings, &jj_repo_dir, |store_path| {
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Box::new(GitBackend::init_external(store_path, &git_repo_dir))
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})
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.unwrap();
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Self {
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settings,
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_temp_dir: temp_dir,
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origin_repo,
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git_repo,
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repo,
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}
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}
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}
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#[test]
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fn test_import_refs_empty_git_repo() {
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let test_data = GitRepoData::create();
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let heads_before = test_data.repo.view().heads().clone();
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let mut tx = test_data
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.repo
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.start_transaction(&test_data.settings, "test");
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git::import_refs(tx.mut_repo(), &test_data.git_repo).unwrap();
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tx.mut_repo()
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.rebase_descendants(&test_data.settings)
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.unwrap();
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let repo = tx.commit();
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assert_eq!(*repo.view().heads(), heads_before);
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assert_eq!(repo.view().branches().len(), 0);
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assert_eq!(repo.view().tags().len(), 0);
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assert_eq!(repo.view().git_refs().len(), 0);
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assert_eq!(repo.view().git_head(), None);
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}
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#[test]
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fn test_import_refs_detached_head() {
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let test_data = GitRepoData::create();
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let commit1 = empty_git_commit(&test_data.git_repo, "refs/heads/main", &[]);
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// Delete the reference. Check that the detached HEAD commit still gets added to
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// the set of heads
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test_data
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.git_repo
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.find_reference("refs/heads/main")
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.unwrap()
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.delete()
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.unwrap();
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test_data.git_repo.set_head_detached(commit1.id()).unwrap();
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let mut tx = test_data
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.repo
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.start_transaction(&test_data.settings, "test");
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git::import_refs(tx.mut_repo(), &test_data.git_repo).unwrap();
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tx.mut_repo()
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.rebase_descendants(&test_data.settings)
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.unwrap();
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let repo = tx.commit();
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let expected_heads = hashset! { jj_id(&commit1) };
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assert_eq!(*repo.view().heads(), expected_heads);
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assert_eq!(repo.view().git_refs().len(), 0);
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assert_eq!(repo.view().git_head(), Some(jj_id(&commit1)));
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}
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|
|
#[test]
|
|
fn test_export_refs_no_detach() {
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// When exporting the branch that's current checked out, don't detach HEAD if
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// the target already matches
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let test_data = GitRepoData::create();
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let git_repo = test_data.git_repo;
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let commit1 = empty_git_commit(&git_repo, "refs/heads/main", &[]);
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git_repo.set_head("refs/heads/main").unwrap();
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let mut tx = test_data
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.repo
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.start_transaction(&test_data.settings, "test");
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let mut_repo = tx.mut_repo();
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git::import_refs(mut_repo, &git_repo).unwrap();
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mut_repo.rebase_descendants(&test_data.settings).unwrap();
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// Do an initial export to make sure `main` is considered
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assert_eq!(git::export_refs(mut_repo, &git_repo), Ok(()));
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assert_eq!(
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mut_repo.get_git_ref("refs/heads/main"),
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Some(RefTarget::Normal(jj_id(&commit1)))
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);
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assert_eq!(git_repo.head().unwrap().name(), Some("refs/heads/main"));
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assert_eq!(
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git_repo.find_reference("refs/heads/main").unwrap().target(),
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Some(commit1.id())
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);
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}
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#[test]
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|
fn test_export_refs_no_op() {
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// Nothing changes on the git side if nothing changed on the jj side
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let test_data = GitRepoData::create();
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let git_repo = test_data.git_repo;
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let commit1 = empty_git_commit(&git_repo, "refs/heads/main", &[]);
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git_repo.set_head("refs/heads/main").unwrap();
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let mut tx = test_data
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.repo
|
|
.start_transaction(&test_data.settings, "test");
|
|
let mut_repo = tx.mut_repo();
|
|
git::import_refs(mut_repo, &git_repo).unwrap();
|
|
mut_repo.rebase_descendants(&test_data.settings).unwrap();
|
|
|
|
assert_eq!(git::export_refs(mut_repo, &git_repo), Ok(()));
|
|
// The export should be a no-op since nothing changed on the jj side since last
|
|
// export
|
|
assert_eq!(git::export_refs(mut_repo, &git_repo), Ok(()));
|
|
assert_eq!(
|
|
mut_repo.get_git_ref("refs/heads/main"),
|
|
Some(RefTarget::Normal(jj_id(&commit1)))
|
|
);
|
|
assert_eq!(git_repo.head().unwrap().name(), Some("refs/heads/main"));
|
|
assert_eq!(
|
|
git_repo.find_reference("refs/heads/main").unwrap().target(),
|
|
Some(commit1.id())
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_export_refs_branch_changed() {
|
|
// We can export a change to a branch
|
|
let test_data = GitRepoData::create();
|
|
let git_repo = test_data.git_repo;
|
|
let commit = empty_git_commit(&git_repo, "refs/heads/main", &[]);
|
|
git_repo
|
|
.reference("refs/heads/feature", commit.id(), false, "test")
|
|
.unwrap();
|
|
git_repo
|
|
.reference("refs/heads/delete-me", commit.id(), false, "test")
|
|
.unwrap();
|
|
git_repo.set_head("refs/heads/feature").unwrap();
|
|
|
|
let mut tx = test_data
|
|
.repo
|
|
.start_transaction(&test_data.settings, "test");
|
|
let mut_repo = tx.mut_repo();
|
|
git::import_refs(mut_repo, &git_repo).unwrap();
|
|
mut_repo.rebase_descendants(&test_data.settings).unwrap();
|
|
assert_eq!(git::export_refs(mut_repo, &git_repo), Ok(()));
|
|
|
|
let new_commit = create_random_commit(&test_data.settings, &test_data.repo)
|
|
.set_parents(vec![jj_id(&commit)])
|
|
.write_to_repo(mut_repo);
|
|
mut_repo.set_local_branch(
|
|
"main".to_string(),
|
|
RefTarget::Normal(new_commit.id().clone()),
|
|
);
|
|
mut_repo.remove_local_branch("delete-me");
|
|
assert_eq!(git::export_refs(mut_repo, &git_repo), Ok(()));
|
|
assert_eq!(
|
|
mut_repo.get_git_ref("refs/heads/main"),
|
|
Some(RefTarget::Normal(new_commit.id().clone()))
|
|
);
|
|
assert_eq!(mut_repo.get_git_ref("refs/heads/delete-me"), None);
|
|
assert_eq!(
|
|
git_repo
|
|
.find_reference("refs/heads/main")
|
|
.unwrap()
|
|
.peel_to_commit()
|
|
.unwrap()
|
|
.id(),
|
|
git_id(&new_commit)
|
|
);
|
|
assert!(git_repo.find_reference("refs/heads/delete-me").is_err());
|
|
// HEAD should be unchanged since its target branch didn't change
|
|
assert_eq!(git_repo.head().unwrap().name(), Some("refs/heads/feature"));
|
|
}
|
|
|
|
#[test]
|
|
fn test_export_refs_current_branch_changed() {
|
|
// If we update a branch that is checked out in the git repo, HEAD gets detached
|
|
let test_data = GitRepoData::create();
|
|
let git_repo = test_data.git_repo;
|
|
let commit1 = empty_git_commit(&git_repo, "refs/heads/main", &[]);
|
|
git_repo.set_head("refs/heads/main").unwrap();
|
|
let mut tx = test_data
|
|
.repo
|
|
.start_transaction(&test_data.settings, "test");
|
|
let mut_repo = tx.mut_repo();
|
|
git::import_refs(mut_repo, &git_repo).unwrap();
|
|
mut_repo.rebase_descendants(&test_data.settings).unwrap();
|
|
assert_eq!(git::export_refs(mut_repo, &git_repo), Ok(()));
|
|
|
|
let new_commit = create_random_commit(&test_data.settings, &test_data.repo)
|
|
.set_parents(vec![jj_id(&commit1)])
|
|
.write_to_repo(mut_repo);
|
|
mut_repo.set_local_branch(
|
|
"main".to_string(),
|
|
RefTarget::Normal(new_commit.id().clone()),
|
|
);
|
|
assert_eq!(git::export_refs(mut_repo, &git_repo), Ok(()));
|
|
assert_eq!(
|
|
mut_repo.get_git_ref("refs/heads/main"),
|
|
Some(RefTarget::Normal(new_commit.id().clone()))
|
|
);
|
|
assert_eq!(
|
|
git_repo
|
|
.find_reference("refs/heads/main")
|
|
.unwrap()
|
|
.peel_to_commit()
|
|
.unwrap()
|
|
.id(),
|
|
git_id(&new_commit)
|
|
);
|
|
assert!(git_repo.head_detached().unwrap());
|
|
}
|
|
|
|
#[test]
|
|
fn test_export_refs_unborn_git_branch() {
|
|
// Can export to an empty Git repo (we can handle Git's "unborn branch" state)
|
|
let test_data = GitRepoData::create();
|
|
let git_repo = test_data.git_repo;
|
|
git_repo.set_head("refs/heads/main").unwrap();
|
|
let mut tx = test_data
|
|
.repo
|
|
.start_transaction(&test_data.settings, "test");
|
|
let mut_repo = tx.mut_repo();
|
|
git::import_refs(mut_repo, &git_repo).unwrap();
|
|
mut_repo.rebase_descendants(&test_data.settings).unwrap();
|
|
assert_eq!(git::export_refs(mut_repo, &git_repo), Ok(()));
|
|
|
|
let new_commit =
|
|
create_random_commit(&test_data.settings, &test_data.repo).write_to_repo(mut_repo);
|
|
mut_repo.set_local_branch(
|
|
"main".to_string(),
|
|
RefTarget::Normal(new_commit.id().clone()),
|
|
);
|
|
assert_eq!(git::export_refs(mut_repo, &git_repo), Ok(()));
|
|
assert_eq!(
|
|
mut_repo.get_git_ref("refs/heads/main"),
|
|
Some(RefTarget::Normal(new_commit.id().clone()))
|
|
);
|
|
assert_eq!(
|
|
git_repo
|
|
.find_reference("refs/heads/main")
|
|
.unwrap()
|
|
.peel_to_commit()
|
|
.unwrap()
|
|
.id(),
|
|
git_id(&new_commit)
|
|
);
|
|
// It's weird that the head is still pointing to refs/heads/main, but
|
|
// it doesn't seem that Git lets you be on an "unborn branch" while
|
|
// also being in a "detached HEAD" state.
|
|
assert!(!git_repo.head_detached().unwrap());
|
|
}
|
|
|
|
#[test]
|
|
fn test_export_import_sequence() {
|
|
// Import a branch pointing to A, modify it in jj to point to B, export it,
|
|
// modify it in git to point to C, then import it again. There should be no
|
|
// conflict.
|
|
let test_data = GitRepoData::create();
|
|
let git_repo = test_data.git_repo;
|
|
let mut tx = test_data
|
|
.repo
|
|
.start_transaction(&test_data.settings, "test");
|
|
let mut_repo = tx.mut_repo();
|
|
let commit_a =
|
|
create_random_commit(&test_data.settings, &test_data.repo).write_to_repo(mut_repo);
|
|
let commit_b =
|
|
create_random_commit(&test_data.settings, &test_data.repo).write_to_repo(mut_repo);
|
|
let commit_c =
|
|
create_random_commit(&test_data.settings, &test_data.repo).write_to_repo(mut_repo);
|
|
|
|
// Import the branch pointing to A
|
|
git_repo
|
|
.reference("refs/heads/main", git_id(&commit_a), true, "test")
|
|
.unwrap();
|
|
git::import_refs(mut_repo, &git_repo).unwrap();
|
|
assert_eq!(
|
|
mut_repo.get_git_ref("refs/heads/main"),
|
|
Some(RefTarget::Normal(commit_a.id().clone()))
|
|
);
|
|
|
|
// Modify the branch in jj to point to B
|
|
mut_repo.set_local_branch("main".to_string(), RefTarget::Normal(commit_b.id().clone()));
|
|
|
|
// Export the branch to git
|
|
assert_eq!(git::export_refs(mut_repo, &git_repo), Ok(()));
|
|
assert_eq!(
|
|
mut_repo.get_git_ref("refs/heads/main"),
|
|
Some(RefTarget::Normal(commit_b.id().clone()))
|
|
);
|
|
|
|
// Modify the branch in git to point to C
|
|
git_repo
|
|
.reference("refs/heads/main", git_id(&commit_c), true, "test")
|
|
.unwrap();
|
|
|
|
// Import from git
|
|
git::import_refs(mut_repo, &git_repo).unwrap();
|
|
assert_eq!(
|
|
mut_repo.get_git_ref("refs/heads/main"),
|
|
Some(RefTarget::Normal(commit_c.id().clone()))
|
|
);
|
|
assert_eq!(
|
|
mut_repo.view().get_local_branch("main"),
|
|
Some(RefTarget::Normal(commit_c.id().clone()))
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_export_conflicts() {
|
|
// We skip export of conflicted branches
|
|
let test_data = GitRepoData::create();
|
|
let git_repo = test_data.git_repo;
|
|
let mut tx = test_data
|
|
.repo
|
|
.start_transaction(&test_data.settings, "test");
|
|
let mut_repo = tx.mut_repo();
|
|
let commit_a =
|
|
create_random_commit(&test_data.settings, &test_data.repo).write_to_repo(mut_repo);
|
|
let commit_b =
|
|
create_random_commit(&test_data.settings, &test_data.repo).write_to_repo(mut_repo);
|
|
let commit_c =
|
|
create_random_commit(&test_data.settings, &test_data.repo).write_to_repo(mut_repo);
|
|
mut_repo.set_local_branch("main".to_string(), RefTarget::Normal(commit_a.id().clone()));
|
|
mut_repo.set_local_branch(
|
|
"feature".to_string(),
|
|
RefTarget::Normal(commit_a.id().clone()),
|
|
);
|
|
assert_eq!(git::export_refs(mut_repo, &git_repo), Ok(()));
|
|
|
|
// Create a conflict and export. It should not be exported, but other changes
|
|
// should be.
|
|
mut_repo.set_local_branch("main".to_string(), RefTarget::Normal(commit_b.id().clone()));
|
|
mut_repo.set_local_branch(
|
|
"feature".to_string(),
|
|
RefTarget::Conflict {
|
|
removes: vec![commit_a.id().clone()],
|
|
adds: vec![commit_b.id().clone(), commit_c.id().clone()],
|
|
},
|
|
);
|
|
assert_eq!(git::export_refs(mut_repo, &git_repo), Ok(()));
|
|
assert_eq!(
|
|
git_repo
|
|
.find_reference("refs/heads/feature")
|
|
.unwrap()
|
|
.target()
|
|
.unwrap(),
|
|
git_id(&commit_a)
|
|
);
|
|
assert_eq!(
|
|
git_repo
|
|
.find_reference("refs/heads/main")
|
|
.unwrap()
|
|
.target()
|
|
.unwrap(),
|
|
git_id(&commit_b)
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_init() {
|
|
let settings = testutils::user_settings();
|
|
let temp_dir = testutils::new_temp_dir();
|
|
let git_repo_dir = temp_dir.path().join("git");
|
|
let jj_repo_dir = temp_dir.path().join("jj");
|
|
let git_repo = git2::Repository::init_bare(&git_repo_dir).unwrap();
|
|
let initial_git_commit = empty_git_commit(&git_repo, "refs/heads/main", &[]);
|
|
std::fs::create_dir(&jj_repo_dir).unwrap();
|
|
let repo = ReadonlyRepo::init(&settings, &jj_repo_dir, |store_path| {
|
|
Box::new(GitBackend::init_external(store_path, &git_repo_dir))
|
|
})
|
|
.unwrap();
|
|
// The refs were *not* imported -- it's the caller's responsibility to import
|
|
// any refs they care about.
|
|
assert!(!repo.view().heads().contains(&jj_id(&initial_git_commit)));
|
|
}
|
|
|
|
#[test]
|
|
fn test_fetch_empty_repo() {
|
|
let test_data = GitRepoData::create();
|
|
|
|
let mut tx = test_data
|
|
.repo
|
|
.start_transaction(&test_data.settings, "test");
|
|
let default_branch = git::fetch(
|
|
tx.mut_repo(),
|
|
&test_data.git_repo,
|
|
"origin",
|
|
git::RemoteCallbacks::default(),
|
|
)
|
|
.unwrap();
|
|
// No default branch and no refs
|
|
assert_eq!(default_branch, None);
|
|
assert_eq!(*tx.mut_repo().view().git_refs(), btreemap! {});
|
|
assert_eq!(*tx.mut_repo().view().branches(), btreemap! {});
|
|
}
|
|
|
|
#[test]
|
|
fn test_fetch_initial_commit() {
|
|
let test_data = GitRepoData::create();
|
|
let initial_git_commit = empty_git_commit(&test_data.origin_repo, "refs/heads/main", &[]);
|
|
|
|
let mut tx = test_data
|
|
.repo
|
|
.start_transaction(&test_data.settings, "test");
|
|
let default_branch = git::fetch(
|
|
tx.mut_repo(),
|
|
&test_data.git_repo,
|
|
"origin",
|
|
git::RemoteCallbacks::default(),
|
|
)
|
|
.unwrap();
|
|
// No default branch because the origin repo's HEAD wasn't set
|
|
assert_eq!(default_branch, None);
|
|
let repo = tx.commit();
|
|
// The initial commit is visible after git::fetch().
|
|
let view = repo.view();
|
|
assert!(view.heads().contains(&jj_id(&initial_git_commit)));
|
|
let initial_commit_target = RefTarget::Normal(jj_id(&initial_git_commit));
|
|
assert_eq!(
|
|
*view.git_refs(),
|
|
btreemap! {
|
|
"refs/remotes/origin/main".to_string() => initial_commit_target.clone(),
|
|
}
|
|
);
|
|
assert_eq!(
|
|
*view.branches(),
|
|
btreemap! {
|
|
"main".to_string() => BranchTarget {
|
|
local_target: Some(initial_commit_target.clone()),
|
|
remote_targets: btreemap! {"origin".to_string() => initial_commit_target}
|
|
},
|
|
}
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_fetch_success() {
|
|
let mut test_data = GitRepoData::create();
|
|
let initial_git_commit = empty_git_commit(&test_data.origin_repo, "refs/heads/main", &[]);
|
|
|
|
let mut tx = test_data
|
|
.repo
|
|
.start_transaction(&test_data.settings, "test");
|
|
git::fetch(
|
|
tx.mut_repo(),
|
|
&test_data.git_repo,
|
|
"origin",
|
|
git::RemoteCallbacks::default(),
|
|
)
|
|
.unwrap();
|
|
test_data.repo = tx.commit();
|
|
|
|
test_data.origin_repo.set_head("refs/heads/main").unwrap();
|
|
let new_git_commit = empty_git_commit(
|
|
&test_data.origin_repo,
|
|
"refs/heads/main",
|
|
&[&initial_git_commit],
|
|
);
|
|
|
|
let mut tx = test_data
|
|
.repo
|
|
.start_transaction(&test_data.settings, "test");
|
|
let default_branch = git::fetch(
|
|
tx.mut_repo(),
|
|
&test_data.git_repo,
|
|
"origin",
|
|
git::RemoteCallbacks::default(),
|
|
)
|
|
.unwrap();
|
|
// The default branch is "main"
|
|
assert_eq!(default_branch, Some("main".to_string()));
|
|
let repo = tx.commit();
|
|
// The new commit is visible after we fetch again
|
|
let view = repo.view();
|
|
assert!(view.heads().contains(&jj_id(&new_git_commit)));
|
|
let new_commit_target = RefTarget::Normal(jj_id(&new_git_commit));
|
|
assert_eq!(
|
|
*view.git_refs(),
|
|
btreemap! {
|
|
"refs/remotes/origin/main".to_string() => new_commit_target.clone(),
|
|
}
|
|
);
|
|
assert_eq!(
|
|
*view.branches(),
|
|
btreemap! {
|
|
"main".to_string() => BranchTarget {
|
|
local_target: Some(new_commit_target.clone()),
|
|
remote_targets: btreemap! {"origin".to_string() => new_commit_target}
|
|
},
|
|
}
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_fetch_prune_deleted_ref() {
|
|
let test_data = GitRepoData::create();
|
|
empty_git_commit(&test_data.git_repo, "refs/heads/main", &[]);
|
|
|
|
let mut tx = test_data
|
|
.repo
|
|
.start_transaction(&test_data.settings, "test");
|
|
git::fetch(
|
|
tx.mut_repo(),
|
|
&test_data.git_repo,
|
|
"origin",
|
|
git::RemoteCallbacks::default(),
|
|
)
|
|
.unwrap();
|
|
// Test the setup
|
|
assert!(tx.mut_repo().get_branch("main").is_some());
|
|
|
|
test_data
|
|
.git_repo
|
|
.find_reference("refs/heads/main")
|
|
.unwrap()
|
|
.delete()
|
|
.unwrap();
|
|
// After re-fetching, the branch should be deleted
|
|
git::fetch(
|
|
tx.mut_repo(),
|
|
&test_data.git_repo,
|
|
"origin",
|
|
git::RemoteCallbacks::default(),
|
|
)
|
|
.unwrap();
|
|
assert!(tx.mut_repo().get_branch("main").is_none());
|
|
}
|
|
|
|
#[test]
|
|
fn test_fetch_no_default_branch() {
|
|
let test_data = GitRepoData::create();
|
|
let initial_git_commit = empty_git_commit(&test_data.origin_repo, "refs/heads/main", &[]);
|
|
|
|
let mut tx = test_data
|
|
.repo
|
|
.start_transaction(&test_data.settings, "test");
|
|
git::fetch(
|
|
tx.mut_repo(),
|
|
&test_data.git_repo,
|
|
"origin",
|
|
git::RemoteCallbacks::default(),
|
|
)
|
|
.unwrap();
|
|
|
|
empty_git_commit(
|
|
&test_data.origin_repo,
|
|
"refs/heads/main",
|
|
&[&initial_git_commit],
|
|
);
|
|
// It's actually not enough to have a detached HEAD, it also needs to point to a
|
|
// commit without a branch (that's possibly a bug in Git *and* libgit2), so
|
|
// we point it to initial_git_commit.
|
|
test_data
|
|
.origin_repo
|
|
.set_head_detached(initial_git_commit.id())
|
|
.unwrap();
|
|
|
|
let default_branch = git::fetch(
|
|
tx.mut_repo(),
|
|
&test_data.git_repo,
|
|
"origin",
|
|
git::RemoteCallbacks::default(),
|
|
)
|
|
.unwrap();
|
|
// There is no default branch
|
|
assert_eq!(default_branch, None);
|
|
}
|
|
|
|
#[test]
|
|
fn test_fetch_no_such_remote() {
|
|
let test_data = GitRepoData::create();
|
|
|
|
let mut tx = test_data
|
|
.repo
|
|
.start_transaction(&test_data.settings, "test");
|
|
let result = git::fetch(
|
|
tx.mut_repo(),
|
|
&test_data.git_repo,
|
|
"invalid-remote",
|
|
git::RemoteCallbacks::default(),
|
|
);
|
|
assert!(matches!(result, Err(GitFetchError::NoSuchRemote(_))));
|
|
}
|
|
|
|
struct PushTestSetup {
|
|
source_repo_dir: PathBuf,
|
|
jj_repo: Arc<ReadonlyRepo>,
|
|
new_commit: Commit,
|
|
}
|
|
|
|
fn set_up_push_repos(settings: &UserSettings, temp_dir: &TempDir) -> PushTestSetup {
|
|
let source_repo_dir = temp_dir.path().join("source");
|
|
let clone_repo_dir = temp_dir.path().join("clone");
|
|
let jj_repo_dir = temp_dir.path().join("jj");
|
|
let source_repo = git2::Repository::init_bare(&source_repo_dir).unwrap();
|
|
let initial_git_commit = empty_git_commit(&source_repo, "refs/heads/main", &[]);
|
|
git2::Repository::clone(source_repo_dir.to_str().unwrap(), &clone_repo_dir).unwrap();
|
|
std::fs::create_dir(&jj_repo_dir).unwrap();
|
|
let jj_repo = ReadonlyRepo::init(settings, &jj_repo_dir, |store_path| {
|
|
Box::new(GitBackend::init_external(store_path, &clone_repo_dir))
|
|
})
|
|
.unwrap();
|
|
let mut tx = jj_repo.start_transaction(settings, "test");
|
|
let new_commit = create_random_commit(settings, &jj_repo)
|
|
.set_parents(vec![jj_id(&initial_git_commit)])
|
|
.write_to_repo(tx.mut_repo());
|
|
let jj_repo = tx.commit();
|
|
PushTestSetup {
|
|
source_repo_dir,
|
|
jj_repo,
|
|
new_commit,
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn test_push_updates_success() {
|
|
let settings = testutils::user_settings();
|
|
let temp_dir = testutils::new_temp_dir();
|
|
let setup = set_up_push_repos(&settings, &temp_dir);
|
|
let clone_repo = setup.jj_repo.store().git_repo().unwrap();
|
|
let result = git::push_updates(
|
|
&clone_repo,
|
|
"origin",
|
|
&[GitRefUpdate {
|
|
qualified_name: "refs/heads/main".to_string(),
|
|
force: false,
|
|
new_target: Some(setup.new_commit.id().clone()),
|
|
}],
|
|
git::RemoteCallbacks::default(),
|
|
);
|
|
assert_eq!(result, Ok(()));
|
|
|
|
// Check that the ref got updated in the source repo
|
|
let source_repo = git2::Repository::open(&setup.source_repo_dir).unwrap();
|
|
let new_target = source_repo
|
|
.find_reference("refs/heads/main")
|
|
.unwrap()
|
|
.target();
|
|
let new_oid = git_id(&setup.new_commit);
|
|
assert_eq!(new_target, Some(new_oid));
|
|
|
|
// Check that the ref got updated in the cloned repo. This just tests our
|
|
// assumptions about libgit2 because we want the refs/remotes/origin/main
|
|
// branch to be updated.
|
|
let new_target = clone_repo
|
|
.find_reference("refs/remotes/origin/main")
|
|
.unwrap()
|
|
.target();
|
|
assert_eq!(new_target, Some(new_oid));
|
|
}
|
|
|
|
#[test]
|
|
fn test_push_updates_deletion() {
|
|
let settings = testutils::user_settings();
|
|
let temp_dir = testutils::new_temp_dir();
|
|
let setup = set_up_push_repos(&settings, &temp_dir);
|
|
let clone_repo = setup.jj_repo.store().git_repo().unwrap();
|
|
|
|
let source_repo = git2::Repository::open(&setup.source_repo_dir).unwrap();
|
|
// Test the setup
|
|
assert!(source_repo.find_reference("refs/heads/main").is_ok());
|
|
|
|
let result = git::push_updates(
|
|
&setup.jj_repo.store().git_repo().unwrap(),
|
|
"origin",
|
|
&[GitRefUpdate {
|
|
qualified_name: "refs/heads/main".to_string(),
|
|
force: false,
|
|
new_target: None,
|
|
}],
|
|
git::RemoteCallbacks::default(),
|
|
);
|
|
assert_eq!(result, Ok(()));
|
|
|
|
// Check that the ref got deleted in the source repo
|
|
assert!(source_repo.find_reference("refs/heads/main").is_err());
|
|
|
|
// Check that the ref got deleted in the cloned repo. This just tests our
|
|
// assumptions about libgit2 because we want the refs/remotes/origin/main
|
|
// branch to be deleted.
|
|
assert!(clone_repo
|
|
.find_reference("refs/remotes/origin/main")
|
|
.is_err());
|
|
}
|
|
|
|
#[test]
|
|
fn test_push_updates_mixed_deletion_and_addition() {
|
|
let settings = testutils::user_settings();
|
|
let temp_dir = testutils::new_temp_dir();
|
|
let setup = set_up_push_repos(&settings, &temp_dir);
|
|
let clone_repo = setup.jj_repo.store().git_repo().unwrap();
|
|
let result = git::push_updates(
|
|
&clone_repo,
|
|
"origin",
|
|
&[
|
|
GitRefUpdate {
|
|
qualified_name: "refs/heads/main".to_string(),
|
|
force: false,
|
|
new_target: None,
|
|
},
|
|
GitRefUpdate {
|
|
qualified_name: "refs/heads/topic".to_string(),
|
|
force: false,
|
|
new_target: Some(setup.new_commit.id().clone()),
|
|
},
|
|
],
|
|
git::RemoteCallbacks::default(),
|
|
);
|
|
assert_eq!(result, Ok(()));
|
|
|
|
// Check that the topic ref got updated in the source repo
|
|
let source_repo = git2::Repository::open(&setup.source_repo_dir).unwrap();
|
|
let new_target = source_repo
|
|
.find_reference("refs/heads/topic")
|
|
.unwrap()
|
|
.target();
|
|
assert_eq!(new_target, Some(git_id(&setup.new_commit)));
|
|
|
|
// Check that the main ref got deleted in the source repo
|
|
assert!(source_repo.find_reference("refs/heads/main").is_err());
|
|
}
|
|
|
|
#[test]
|
|
fn test_push_updates_not_fast_forward() {
|
|
let settings = testutils::user_settings();
|
|
let temp_dir = testutils::new_temp_dir();
|
|
let mut setup = set_up_push_repos(&settings, &temp_dir);
|
|
let mut tx = setup.jj_repo.start_transaction(&settings, "test");
|
|
let new_commit = create_random_commit(&settings, &setup.jj_repo).write_to_repo(tx.mut_repo());
|
|
setup.jj_repo = tx.commit();
|
|
let result = git::push_updates(
|
|
&setup.jj_repo.store().git_repo().unwrap(),
|
|
"origin",
|
|
&[GitRefUpdate {
|
|
qualified_name: "refs/heads/main".to_string(),
|
|
force: false,
|
|
new_target: Some(new_commit.id().clone()),
|
|
}],
|
|
git::RemoteCallbacks::default(),
|
|
);
|
|
assert_eq!(result, Err(GitPushError::NotFastForward));
|
|
}
|
|
|
|
#[test]
|
|
fn test_push_updates_not_fast_forward_with_force() {
|
|
let settings = testutils::user_settings();
|
|
let temp_dir = testutils::new_temp_dir();
|
|
let mut setup = set_up_push_repos(&settings, &temp_dir);
|
|
let mut tx = setup.jj_repo.start_transaction(&settings, "test");
|
|
let new_commit = create_random_commit(&settings, &setup.jj_repo).write_to_repo(tx.mut_repo());
|
|
setup.jj_repo = tx.commit();
|
|
let result = git::push_updates(
|
|
&setup.jj_repo.store().git_repo().unwrap(),
|
|
"origin",
|
|
&[GitRefUpdate {
|
|
qualified_name: "refs/heads/main".to_string(),
|
|
force: true,
|
|
new_target: Some(new_commit.id().clone()),
|
|
}],
|
|
git::RemoteCallbacks::default(),
|
|
);
|
|
assert_eq!(result, Ok(()));
|
|
|
|
// Check that the ref got updated in the source repo
|
|
let source_repo = git2::Repository::open(&setup.source_repo_dir).unwrap();
|
|
let new_target = source_repo
|
|
.find_reference("refs/heads/main")
|
|
.unwrap()
|
|
.target();
|
|
assert_eq!(new_target, Some(git_id(&new_commit)));
|
|
}
|
|
|
|
#[test]
|
|
fn test_push_updates_no_such_remote() {
|
|
let settings = testutils::user_settings();
|
|
let temp_dir = testutils::new_temp_dir();
|
|
let setup = set_up_push_repos(&settings, &temp_dir);
|
|
let result = git::push_updates(
|
|
&setup.jj_repo.store().git_repo().unwrap(),
|
|
"invalid-remote",
|
|
&[GitRefUpdate {
|
|
qualified_name: "refs/heads/main".to_string(),
|
|
force: false,
|
|
new_target: Some(setup.new_commit.id().clone()),
|
|
}],
|
|
git::RemoteCallbacks::default(),
|
|
);
|
|
assert!(matches!(result, Err(GitPushError::NoSuchRemote(_))));
|
|
}
|
|
|
|
#[test]
|
|
fn test_push_updates_invalid_remote() {
|
|
let settings = testutils::user_settings();
|
|
let temp_dir = testutils::new_temp_dir();
|
|
let setup = set_up_push_repos(&settings, &temp_dir);
|
|
let result = git::push_updates(
|
|
&setup.jj_repo.store().git_repo().unwrap(),
|
|
"http://invalid-remote",
|
|
&[GitRefUpdate {
|
|
qualified_name: "refs/heads/main".to_string(),
|
|
force: false,
|
|
new_target: Some(setup.new_commit.id().clone()),
|
|
}],
|
|
git::RemoteCallbacks::default(),
|
|
);
|
|
assert!(matches!(result, Err(GitPushError::NoSuchRemote(_))));
|
|
}
|