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4d42604913
We haven't used custom Git commit headers for two main reasons: 1. I don't want commits created by jj to be different from any other commits. I don't want Git projects to get annoyed by such commit and reject them. 2. I've been concerned that tools don't know how to handle such headers, perhaps even resulting in crashes. The first argument doesn't apply to commits with conflicts because such commits would never be accepted by a project whether or not they use custom commit headers. The second argument is less relevant for conflicted commits because most tools will be confused by such commits anyway. Storing conflict information in commit headers means that we can transfer them via the regular Git wire protocol. We already include the tree objects nested inside the root-level tree, so they will also be transferred. So, let's start by writing the information redundantly to the commit header and to the existing storage. That way we can roll it back if we realize there's a problem with using commit headers.
253 lines
9.6 KiB
Rust
253 lines
9.6 KiB
Rust
// Copyright 2023 The Jujutsu Authors
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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;
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use crate::common::TestEnvironment;
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fn create_commit(
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test_env: &TestEnvironment,
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repo_path: &Path,
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name: &str,
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parents: &[&str],
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files: &[(&str, &str)],
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) {
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if parents.is_empty() {
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test_env.jj_cmd_ok(repo_path, &["new", "root()", "-m", name]);
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} else {
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let mut args = vec!["new", "-m", name];
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args.extend(parents);
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test_env.jj_cmd_ok(repo_path, &args);
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}
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for (name, content) in files {
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std::fs::write(repo_path.join(name), content).unwrap();
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}
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test_env.jj_cmd_ok(repo_path, &["branch", "create", name]);
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}
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fn get_log_output(test_env: &TestEnvironment, repo_path: &Path) -> String {
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test_env.jj_cmd_success(repo_path, &["log", "-T", "branches"])
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}
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#[test]
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fn test_chmod_regular_conflict() {
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let test_env = TestEnvironment::default();
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test_env.jj_cmd_ok(test_env.env_root(), &["init", "repo", "--git"]);
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let repo_path = test_env.env_root().join("repo");
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create_commit(&test_env, &repo_path, "base", &[], &[("file", "base\n")]);
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create_commit(&test_env, &repo_path, "n", &["base"], &[("file", "n\n")]);
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create_commit(&test_env, &repo_path, "x", &["base"], &[("file", "x\n")]);
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// Test chmodding a file. The effect will be visible in the conflict below.
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test_env.jj_cmd_ok(&repo_path, &["chmod", "x", "file", "-r=x"]);
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create_commit(&test_env, &repo_path, "conflict", &["x", "n"], &[]);
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// Test the setup
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insta::assert_snapshot!(get_log_output(&test_env, &repo_path), @r###"
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@ conflict
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├─╮
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│ ◉ n
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◉ │ x
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├─╯
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◉ base
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◉
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"###);
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let stdout = test_env.jj_cmd_success(&repo_path, &["debug", "tree"]);
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insta::assert_snapshot!(stdout,
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@r###"
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file: Conflicted([Some(File { id: FileId("587be6b4c3f93f93c489c0111bba5596147a26cb"), executable: true }), Some(File { id: FileId("df967b96a579e45a18b8251732d16804b2e56a55"), executable: false }), Some(File { id: FileId("8ba3a16384aacc37d01564b28401755ce8053f51"), executable: false })])
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"###);
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let stdout = test_env.jj_cmd_success(&repo_path, &["cat", "file"]);
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insta::assert_snapshot!(stdout,
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@r###"
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<<<<<<<
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%%%%%%%
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-base
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+x
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+++++++
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n
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>>>>>>>
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"###);
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// Test chmodding a conflict
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test_env.jj_cmd_ok(&repo_path, &["chmod", "x", "file"]);
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let stdout = test_env.jj_cmd_success(&repo_path, &["debug", "tree"]);
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insta::assert_snapshot!(stdout,
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@r###"
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file: Conflicted([Some(File { id: FileId("587be6b4c3f93f93c489c0111bba5596147a26cb"), executable: true }), Some(File { id: FileId("df967b96a579e45a18b8251732d16804b2e56a55"), executable: true }), Some(File { id: FileId("8ba3a16384aacc37d01564b28401755ce8053f51"), executable: true })])
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"###);
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let stdout = test_env.jj_cmd_success(&repo_path, &["cat", "file"]);
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insta::assert_snapshot!(stdout,
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@r###"
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<<<<<<<
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%%%%%%%
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-base
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+x
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+++++++
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n
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>>>>>>>
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"###);
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test_env.jj_cmd_ok(&repo_path, &["chmod", "n", "file"]);
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let stdout = test_env.jj_cmd_success(&repo_path, &["debug", "tree"]);
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insta::assert_snapshot!(stdout,
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@r###"
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file: Conflicted([Some(File { id: FileId("587be6b4c3f93f93c489c0111bba5596147a26cb"), executable: false }), Some(File { id: FileId("df967b96a579e45a18b8251732d16804b2e56a55"), executable: false }), Some(File { id: FileId("8ba3a16384aacc37d01564b28401755ce8053f51"), executable: false })])
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"###);
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let stdout = test_env.jj_cmd_success(&repo_path, &["cat", "file"]);
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insta::assert_snapshot!(stdout,
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@r###"
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<<<<<<<
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%%%%%%%
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-base
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+x
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+++++++
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n
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>>>>>>>
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"###);
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// An error prevents `chmod` from making any changes.
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// In this case, the failure with `nonexistent` prevents any changes to `file`.
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let stderr = test_env.jj_cmd_failure(&repo_path, &["chmod", "x", "nonexistent", "file"]);
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insta::assert_snapshot!(stderr, @r###"
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Error: No such path at 'nonexistent'.
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"###);
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let stdout = test_env.jj_cmd_success(&repo_path, &["debug", "tree"]);
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insta::assert_snapshot!(stdout,
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@r###"
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file: Conflicted([Some(File { id: FileId("587be6b4c3f93f93c489c0111bba5596147a26cb"), executable: false }), Some(File { id: FileId("df967b96a579e45a18b8251732d16804b2e56a55"), executable: false }), Some(File { id: FileId("8ba3a16384aacc37d01564b28401755ce8053f51"), executable: false })])
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"###);
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let stdout = test_env.jj_cmd_success(&repo_path, &["cat", "file"]);
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insta::assert_snapshot!(stdout,
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@r###"
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<<<<<<<
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%%%%%%%
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-base
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+x
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+++++++
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n
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>>>>>>>
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"###);
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}
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// TODO: Test demonstrating that conflicts whose *base* is not a file are
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// chmod-dable
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#[test]
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fn test_chmod_file_dir_deletion_conflicts() {
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let test_env = TestEnvironment::default();
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test_env.jj_cmd_ok(test_env.env_root(), &["init", "repo", "--git"]);
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let repo_path = test_env.env_root().join("repo");
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create_commit(&test_env, &repo_path, "base", &[], &[("file", "base\n")]);
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create_commit(&test_env, &repo_path, "file", &["base"], &[("file", "a\n")]);
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create_commit(&test_env, &repo_path, "deletion", &["base"], &[]);
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std::fs::remove_file(repo_path.join("file")).unwrap();
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create_commit(&test_env, &repo_path, "dir", &["base"], &[]);
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std::fs::remove_file(repo_path.join("file")).unwrap();
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std::fs::create_dir(repo_path.join("file")).unwrap();
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// Without a placeholder file, `jj` ignores an empty directory
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std::fs::write(repo_path.join("file").join("placeholder"), "").unwrap();
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// Create a file-dir conflict and a file-deletion conflict
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create_commit(&test_env, &repo_path, "file_dir", &["file", "dir"], &[]);
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create_commit(
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&test_env,
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&repo_path,
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"file_deletion",
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&["file", "deletion"],
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&[],
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);
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insta::assert_snapshot!(get_log_output(&test_env, &repo_path), @r###"
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@ file_deletion
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├─╮
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│ ◉ deletion
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│ │ ◉ file_dir
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╭───┤
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│ │ ◉ dir
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│ ├─╯
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◉ │ file
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├─╯
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◉ base
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◉
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"###);
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// The file-dir conflict cannot be chmod-ed
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let stdout = test_env.jj_cmd_success(&repo_path, &["debug", "tree", "-r=file_dir"]);
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insta::assert_snapshot!(stdout,
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@r###"
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file: Conflicted([Some(File { id: FileId("78981922613b2afb6025042ff6bd878ac1994e85"), executable: false }), Some(File { id: FileId("df967b96a579e45a18b8251732d16804b2e56a55"), executable: false }), Some(Tree(TreeId("133bb38fc4e4bf6b551f1f04db7e48f04cac2877")))])
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"###);
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let stdout = test_env.jj_cmd_success(&repo_path, &["cat", "-r=file_dir", "file"]);
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insta::assert_snapshot!(stdout,
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@r###"
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Conflict:
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Removing file with id df967b96a579e45a18b8251732d16804b2e56a55
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Adding file with id 78981922613b2afb6025042ff6bd878ac1994e85
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Adding tree with id 133bb38fc4e4bf6b551f1f04db7e48f04cac2877
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"###);
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let stderr = test_env.jj_cmd_failure(&repo_path, &["chmod", "x", "file", "-r=file_dir"]);
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insta::assert_snapshot!(stderr, @r###"
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Error: Some of the sides of the conflict are not files at 'file'.
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"###);
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// The file_deletion conflict can be chmod-ed
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let stdout = test_env.jj_cmd_success(&repo_path, &["debug", "tree", "-r=file_deletion"]);
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insta::assert_snapshot!(stdout,
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@r###"
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file: Conflicted([Some(File { id: FileId("78981922613b2afb6025042ff6bd878ac1994e85"), executable: false }), Some(File { id: FileId("df967b96a579e45a18b8251732d16804b2e56a55"), executable: false }), None])
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"###);
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let stdout = test_env.jj_cmd_success(&repo_path, &["cat", "-r=file_deletion", "file"]);
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insta::assert_snapshot!(stdout,
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@r###"
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<<<<<<<
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+++++++
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a
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%%%%%%%
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-base
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>>>>>>>
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"###);
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let (stdout, stderr) =
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test_env.jj_cmd_ok(&repo_path, &["chmod", "x", "file", "-r=file_deletion"]);
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insta::assert_snapshot!(stdout, @"");
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insta::assert_snapshot!(stderr, @r###"
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New conflicts appeared in these commits:
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kmkuslsw b4c38719 file_deletion | (conflict) file_deletion
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To resolve the conflicts, start by updating to it:
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jj new kmkuslswpqwq
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Then use `jj resolve`, or edit the conflict markers in the file directly.
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Once the conflicts are resolved, you may want inspect the result with `jj diff`.
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Then run `jj squash` to move the resolution into the conflicted commit.
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Working copy now at: kmkuslsw b4c38719 file_deletion | (conflict) file_deletion
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Parent commit : zsuskuln c51c9c55 file | file
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Parent commit : royxmykx 6b18b3c1 deletion | deletion
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Added 0 files, modified 1 files, removed 0 files
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"###);
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let stdout = test_env.jj_cmd_success(&repo_path, &["debug", "tree", "-r=file_deletion"]);
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insta::assert_snapshot!(stdout,
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@r###"
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file: Conflicted([Some(File { id: FileId("78981922613b2afb6025042ff6bd878ac1994e85"), executable: true }), Some(File { id: FileId("df967b96a579e45a18b8251732d16804b2e56a55"), executable: true }), None])
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"###);
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let stdout = test_env.jj_cmd_success(&repo_path, &["cat", "-r=file_deletion", "file"]);
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insta::assert_snapshot!(stdout,
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@r###"
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<<<<<<<
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+++++++
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a
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%%%%%%%
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-base
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>>>>>>>
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"###);
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}
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