jj/cli/tests/test_unsquash_command.rs
Scott Taylor 1eebbe57c0 commit_builder: reset author timestamp on discardable commits
It's common to create empty working-copy commits while using jj, and
currently the author timestamp for a commit is only set when it is first
created. If you create an empty commit, then don't work on a repo for a
few days, and then start working on a new feature without abandoning the
working-copy commit, the author timestamp will remain as the time the
commit was created rather than being updated to the time that work began
or finished.

This commit changes the behavior so that discardable commits (empty
commits with no description) by the current user have their author
timestamps reset when they are rewritten, meaning that the author
timestamp will become finalized whenever a commit is given a description
or becomes non-empty.
2024-06-29 08:35:53 -05:00

321 lines
12 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 crate::common::TestEnvironment;
#[test]
fn test_unsquash() {
let test_env = TestEnvironment::default();
test_env.jj_cmd_ok(test_env.env_root(), &["git", "init", "repo"]);
let repo_path = test_env.env_root().join("repo");
test_env.jj_cmd_ok(&repo_path, &["branch", "create", "a"]);
std::fs::write(repo_path.join("file1"), "a\n").unwrap();
test_env.jj_cmd_ok(&repo_path, &["new"]);
test_env.jj_cmd_ok(&repo_path, &["branch", "create", "b"]);
std::fs::write(repo_path.join("file1"), "b\n").unwrap();
test_env.jj_cmd_ok(&repo_path, &["new"]);
test_env.jj_cmd_ok(&repo_path, &["branch", "create", "c"]);
std::fs::write(repo_path.join("file1"), "c\n").unwrap();
// Test the setup
insta::assert_snapshot!(get_log_output(&test_env, &repo_path), @r###"
@ 382c9bad7d42 c
◉ d5d59175b481 b
◉ 184ddbcce5a9 a
◉ 000000000000
"###);
// Unsquashes into the working copy from its parent by default
let (stdout, stderr) = test_env.jj_cmd_ok(&repo_path, &["unsquash"]);
insta::assert_snapshot!(stdout, @"");
insta::assert_snapshot!(stderr, @r###"
Working copy now at: mzvwutvl 9177132c c | (no description set)
Parent commit : qpvuntsm 184ddbcc a b | (no description set)
"###);
insta::assert_snapshot!(get_log_output(&test_env, &repo_path), @r###"
@ 9177132cfbb9 c
◉ 184ddbcce5a9 a b
◉ 000000000000
"###);
let stdout = test_env.jj_cmd_success(&repo_path, &["file", "show", "file1"]);
insta::assert_snapshot!(stdout, @r###"
c
"###);
// Can unsquash into a given commit from its parent
test_env.jj_cmd_ok(&repo_path, &["undo"]);
let (stdout, stderr) = test_env.jj_cmd_ok(&repo_path, &["unsquash", "-r", "b"]);
insta::assert_snapshot!(stdout, @"");
insta::assert_snapshot!(stderr, @r###"
Rebased 1 descendant commits
Working copy now at: mzvwutvl b353b29c c | (no description set)
Parent commit : kkmpptxz 27772b15 b | (no description set)
"###);
insta::assert_snapshot!(get_log_output(&test_env, &repo_path), @r###"
@ b353b29c423d c
◉ 27772b156771 b
◉ 000000000000 a
"###);
let stdout = test_env.jj_cmd_success(&repo_path, &["file", "show", "file1", "-r", "b"]);
insta::assert_snapshot!(stdout, @r###"
b
"###);
let stdout = test_env.jj_cmd_success(&repo_path, &["file", "show", "file1"]);
insta::assert_snapshot!(stdout, @r###"
c
"###);
// Cannot unsquash into a merge commit (because it's unclear which parent it
// should come from)
test_env.jj_cmd_ok(&repo_path, &["undo"]);
test_env.jj_cmd_ok(&repo_path, &["edit", "b"]);
test_env.jj_cmd_ok(&repo_path, &["new"]);
test_env.jj_cmd_ok(&repo_path, &["branch", "create", "d"]);
std::fs::write(repo_path.join("file2"), "d\n").unwrap();
test_env.jj_cmd_ok(&repo_path, &["new", "-m", "merge", "c", "d"]);
test_env.jj_cmd_ok(&repo_path, &["branch", "create", "e"]);
insta::assert_snapshot!(get_log_output(&test_env, &repo_path), @r###"
@ b780e7469252 e
├─╮
│ ◉ f86e2b3af3e3 d
◉ │ 382c9bad7d42 c
├─╯
◉ d5d59175b481 b
◉ 184ddbcce5a9 a
◉ 000000000000
"###);
let stderr = test_env.jj_cmd_failure(&repo_path, &["unsquash"]);
insta::assert_snapshot!(stderr, @r###"
Error: Cannot unsquash merge commits
"###);
// Can unsquash from a merge commit
test_env.jj_cmd_ok(&repo_path, &["new", "e"]);
std::fs::write(repo_path.join("file1"), "e\n").unwrap();
let (stdout, stderr) = test_env.jj_cmd_ok(&repo_path, &["unsquash"]);
insta::assert_snapshot!(stdout, @"");
insta::assert_snapshot!(stderr, @r###"
Working copy now at: pzsxstzt bd05eb69 merge
Parent commit : mzvwutvl 382c9bad c e?? | (no description set)
Parent commit : xznxytkn f86e2b3a d e?? | (no description set)
"###);
insta::assert_snapshot!(get_log_output(&test_env, &repo_path), @r###"
@ bd05eb698d1e
├─╮
│ ◉ f86e2b3af3e3 d e??
◉ │ 382c9bad7d42 c e??
├─╯
◉ d5d59175b481 b
◉ 184ddbcce5a9 a
◉ 000000000000
"###);
let stdout = test_env.jj_cmd_success(&repo_path, &["file", "show", "file1"]);
insta::assert_snapshot!(stdout, @r###"
e
"###);
}
#[test]
fn test_unsquash_partial() {
let mut test_env = TestEnvironment::default();
test_env.jj_cmd_ok(test_env.env_root(), &["git", "init", "repo"]);
let repo_path = test_env.env_root().join("repo");
test_env.jj_cmd_ok(&repo_path, &["branch", "create", "a"]);
std::fs::write(repo_path.join("file1"), "a\n").unwrap();
std::fs::write(repo_path.join("file2"), "a\n").unwrap();
test_env.jj_cmd_ok(&repo_path, &["new"]);
test_env.jj_cmd_ok(&repo_path, &["branch", "create", "b"]);
std::fs::write(repo_path.join("file1"), "b\n").unwrap();
std::fs::write(repo_path.join("file2"), "b\n").unwrap();
test_env.jj_cmd_ok(&repo_path, &["new"]);
test_env.jj_cmd_ok(&repo_path, &["branch", "create", "c"]);
std::fs::write(repo_path.join("file1"), "c\n").unwrap();
std::fs::write(repo_path.join("file2"), "c\n").unwrap();
// Test the setup
insta::assert_snapshot!(get_log_output(&test_env, &repo_path), @r###"
@ a0b1a272ebc4 c
◉ d117da276a0f b
◉ 54d3c1c0e9fd a
◉ 000000000000
"###);
// If we don't make any changes in the diff-editor, the whole change is moved
// from the parent
let edit_script = test_env.set_up_fake_diff_editor();
let (stdout, stderr) = test_env.jj_cmd_ok(&repo_path, &["unsquash", "-r", "b", "-i"]);
insta::assert_snapshot!(stdout, @"");
insta::assert_snapshot!(stderr, @r###"
Rebased 1 descendant commits
Working copy now at: mzvwutvl 8802263d c | (no description set)
Parent commit : kkmpptxz 5bd83140 b | (no description set)
"###);
insta::assert_snapshot!(get_log_output(&test_env, &repo_path), @r###"
@ 8802263dbd92 c
◉ 5bd83140fd47 b
◉ c93de9257191 a
◉ 000000000000
"###);
let stdout = test_env.jj_cmd_success(&repo_path, &["file", "show", "file1", "-r", "a"]);
insta::assert_snapshot!(stdout, @r###"
a
"###);
// Can unsquash only some changes in interactive mode
test_env.jj_cmd_ok(&repo_path, &["undo"]);
std::fs::write(edit_script, "reset file1").unwrap();
let (stdout, stderr) = test_env.jj_cmd_ok(&repo_path, &["unsquash", "-i"]);
insta::assert_snapshot!(stdout, @"");
insta::assert_snapshot!(stderr, @r###"
Working copy now at: mzvwutvl a896ffde c | (no description set)
Parent commit : kkmpptxz 904111b4 b | (no description set)
"###);
insta::assert_snapshot!(get_log_output(&test_env, &repo_path), @r###"
@ a896ffdebb85 c
◉ 904111b4d3c4 b
◉ 54d3c1c0e9fd a
◉ 000000000000
"###);
let stdout = test_env.jj_cmd_success(&repo_path, &["file", "show", "file1", "-r", "b"]);
insta::assert_snapshot!(stdout, @r###"
a
"###);
let stdout = test_env.jj_cmd_success(&repo_path, &["file", "show", "file2", "-r", "b"]);
insta::assert_snapshot!(stdout, @r###"
b
"###);
let stdout = test_env.jj_cmd_success(&repo_path, &["file", "show", "file1", "-r", "c"]);
insta::assert_snapshot!(stdout, @r###"
c
"###);
let stdout = test_env.jj_cmd_success(&repo_path, &["file", "show", "file2", "-r", "c"]);
insta::assert_snapshot!(stdout, @r###"
c
"###);
// Try again with --tool=<name>, which implies --interactive
test_env.jj_cmd_ok(&repo_path, &["undo"]);
let (stdout, stderr) = test_env.jj_cmd_ok(
&repo_path,
&[
"unsquash",
"--config-toml=ui.diff-editor='false'",
"--tool=fake-diff-editor",
],
);
insta::assert_snapshot!(stdout, @"");
insta::assert_snapshot!(stderr, @r###"
Working copy now at: mzvwutvl aaca9268 c | (no description set)
Parent commit : kkmpptxz fe8eb117 b | (no description set)
"###);
let stdout = test_env.jj_cmd_success(&repo_path, &["file", "show", "file1", "-r", "b"]);
insta::assert_snapshot!(stdout, @r###"
a
"###);
let stdout = test_env.jj_cmd_success(&repo_path, &["file", "show", "file2", "-r", "b"]);
insta::assert_snapshot!(stdout, @r###"
b
"###);
let stdout = test_env.jj_cmd_success(&repo_path, &["file", "show", "file1", "-r", "c"]);
insta::assert_snapshot!(stdout, @r###"
c
"###);
let stdout = test_env.jj_cmd_success(&repo_path, &["file", "show", "file2", "-r", "c"]);
insta::assert_snapshot!(stdout, @r###"
c
"###);
}
fn get_log_output(test_env: &TestEnvironment, repo_path: &Path) -> String {
let template = r#"commit_id.short() ++ " " ++ branches"#;
test_env.jj_cmd_success(repo_path, &["log", "-T", template])
}
#[test]
fn test_unsquash_description() {
let mut test_env = TestEnvironment::default();
test_env.jj_cmd_ok(test_env.env_root(), &["git", "init", "repo"]);
let repo_path = test_env.env_root().join("repo");
let edit_script = test_env.set_up_fake_editor();
std::fs::write(&edit_script, r#"fail"#).unwrap();
// If both descriptions are empty, the resulting description is empty
std::fs::write(repo_path.join("file1"), "a\n").unwrap();
std::fs::write(repo_path.join("file2"), "a\n").unwrap();
test_env.jj_cmd_ok(&repo_path, &["new"]);
std::fs::write(repo_path.join("file1"), "b\n").unwrap();
std::fs::write(repo_path.join("file2"), "b\n").unwrap();
test_env.jj_cmd_ok(&repo_path, &["unsquash"]);
insta::assert_snapshot!(get_description(&test_env, &repo_path, "@"), @"");
// If the destination's description is empty and the source's description is
// non-empty, the resulting description is from the source
test_env.jj_cmd_ok(&repo_path, &["undo"]);
test_env.jj_cmd_ok(&repo_path, &["describe", "@-", "-m", "source"]);
test_env.jj_cmd_ok(&repo_path, &["unsquash"]);
insta::assert_snapshot!(get_description(&test_env, &repo_path, "@"), @r###"
source
"###);
// If the destination description is non-empty and the source's description is
// empty, the resulting description is from the destination
test_env.jj_cmd_ok(&repo_path, &["op", "restore", "@--"]);
test_env.jj_cmd_ok(&repo_path, &["describe", "-m", "destination"]);
test_env.jj_cmd_ok(&repo_path, &["unsquash"]);
insta::assert_snapshot!(get_description(&test_env, &repo_path, "@"), @r###"
destination
"###);
// If both descriptions were non-empty, we get asked for a combined description
test_env.jj_cmd_ok(&repo_path, &["undo"]);
test_env.jj_cmd_ok(&repo_path, &["describe", "@-", "-m", "source"]);
std::fs::write(&edit_script, "dump editor0").unwrap();
test_env.jj_cmd_ok(&repo_path, &["unsquash"]);
insta::assert_snapshot!(get_description(&test_env, &repo_path, "@"), @r###"
destination
source
"###);
insta::assert_snapshot!(
std::fs::read_to_string(test_env.env_root().join("editor0")).unwrap(), @r###"
JJ: Enter a description for the combined commit.
JJ: Description from the destination commit:
destination
JJ: Description from source commit:
source
JJ: Lines starting with "JJ: " (like this one) will be removed.
"###);
// If the source's *content* doesn't become empty, then the source remains and
// both descriptions are unchanged
test_env.jj_cmd_ok(&repo_path, &["undo"]);
insta::assert_snapshot!(get_description(&test_env, &repo_path, "@-"), @r###"
source
"###);
insta::assert_snapshot!(get_description(&test_env, &repo_path, "@"), @r###"
destination
"###);
}
fn get_description(test_env: &TestEnvironment, repo_path: &Path, rev: &str) -> String {
test_env.jj_cmd_success(
repo_path,
&["log", "--no-graph", "-T", "description", "-r", rev],
)
}