// 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::io::Write; use crate::common::TestEnvironment; pub mod common; #[test]fn test_sparse_manage_patterns() {    let mut test_env = TestEnvironment::default();    test_env.jj_cmd_ok(test_env.env_root(), &["init", "repo", "--git"]);    let repo_path = test_env.env_root().join("repo");     let edit_script = test_env.set_up_fake_editor();     // Write some files to the working copy    std::fs::write(repo_path.join("file1"), "contents").unwrap();    std::fs::write(repo_path.join("file2"), "contents").unwrap();    std::fs::write(repo_path.join("file3"), "contents").unwrap();     // By default, all files are tracked    let stdout = test_env.jj_cmd_success(&repo_path, &["sparse", "list"]);    insta::assert_snapshot!(stdout, @r###"    .    "###);     // Can stop tracking all files    let (stdout, stderr) = test_env.jj_cmd_ok(&repo_path, &["sparse", "set", "--remove", "."]);    insta::assert_snapshot!(stdout, @"");    insta::assert_snapshot!(stderr, @r###"    Added 0 files, modified 0 files, removed 3 files    "###);    // The list is now empty    let stdout = test_env.jj_cmd_success(&repo_path, &["sparse", "list"]);    insta::assert_snapshot!(stdout, @"");    // They're removed from the working copy    assert!(!repo_path.join("file1").exists());    assert!(!repo_path.join("file2").exists());    assert!(!repo_path.join("file3").exists());    // But they're still in the commit    let stdout = test_env.jj_cmd_success(&repo_path, &["files"]);    insta::assert_snapshot!(stdout, @r###"    file1    file2    file3    "###);     // Can `--add` a few files    let (stdout, stderr) = test_env.jj_cmd_ok(        &repo_path,        &["sparse", "set", "--add", "file2", "--add", "file3"],    );    insta::assert_snapshot!(stdout, @"");    insta::assert_snapshot!(stderr, @r###"    Added 2 files, modified 0 files, removed 0 files    "###);    let stdout = test_env.jj_cmd_success(&repo_path, &["sparse", "list"]);    insta::assert_snapshot!(stdout, @r###"    file2    file3    "###);    assert!(!repo_path.join("file1").exists());    assert!(repo_path.join("file2").exists());    assert!(repo_path.join("file3").exists());     // Can combine `--add` and `--remove`    let (stdout, stderr) = test_env.jj_cmd_ok(        &repo_path,        &[            "sparse", "set", "--add", "file1", "--remove", "file2", "--remove", "file3",        ],    );    insta::assert_snapshot!(stdout, @"");    insta::assert_snapshot!(stderr, @r###"    Added 1 files, modified 0 files, removed 2 files    "###);    let stdout = test_env.jj_cmd_success(&repo_path, &["sparse", "list"]);    insta::assert_snapshot!(stdout, @r###"    file1    "###);    assert!(repo_path.join("file1").exists());    assert!(!repo_path.join("file2").exists());    assert!(!repo_path.join("file3").exists());     // Can use `--clear` and `--add`    let (stdout, stderr) =        test_env.jj_cmd_ok(&repo_path, &["sparse", "set", "--clear", "--add", "file2"]);    insta::assert_snapshot!(stdout, @"");    insta::assert_snapshot!(stderr, @r###"    Added 1 files, modified 0 files, removed 1 files    "###);    let stdout = test_env.jj_cmd_success(&repo_path, &["sparse", "list"]);    insta::assert_snapshot!(stdout, @r###"    file2    "###);    assert!(!repo_path.join("file1").exists());    assert!(repo_path.join("file2").exists());    assert!(!repo_path.join("file3").exists());     // Can reset back to all files    let (stdout, stderr) = test_env.jj_cmd_ok(&repo_path, &["sparse", "set", "--reset"]);    insta::assert_snapshot!(stdout, @"");    insta::assert_snapshot!(stderr, @r###"    Added 2 files, modified 0 files, removed 0 files    "###);    let stdout = test_env.jj_cmd_success(&repo_path, &["sparse", "list"]);    insta::assert_snapshot!(stdout, @r###"    .    "###);    assert!(repo_path.join("file1").exists());    assert!(repo_path.join("file2").exists());    assert!(repo_path.join("file3").exists());     // Can edit with editor    let edit_patterns = |patterns: &[&str]| {        let mut file = std::fs::File::create(&edit_script).unwrap();        file.write_all(b"dump patterns0\0write\n").unwrap();        for pattern in patterns {            file.write_all(pattern.as_bytes()).unwrap();            file.write_all(b"\n").unwrap();        }    };    let read_patterns = || std::fs::read_to_string(test_env.env_root().join("patterns0")).unwrap();     edit_patterns(&["file1"]);    let (stdout, stderr) = test_env.jj_cmd_ok(&repo_path, &["sparse", "set", "--edit"]);    insta::assert_snapshot!(stdout, @"");    insta::assert_snapshot!(stderr, @r###"    Added 0 files, modified 0 files, removed 2 files    "###);    insta::assert_snapshot!(read_patterns(), @".");    let stdout = test_env.jj_cmd_success(&repo_path, &["sparse", "list"]);    insta::assert_snapshot!(stdout, @r###"    file1    "###);     // Can edit with `--clear` and `--add`    edit_patterns(&["file2"]);    let (stdout, stderr) = test_env.jj_cmd_ok(        &repo_path,        &["sparse", "set", "--edit", "--clear", "--add", "file1"],    );    insta::assert_snapshot!(stdout, @"");    insta::assert_snapshot!(stderr, @r###"    Added 1 files, modified 0 files, removed 1 files    "###);    insta::assert_snapshot!(read_patterns(), @"file1");    let stdout = test_env.jj_cmd_success(&repo_path, &["sparse", "list"]);    insta::assert_snapshot!(stdout, @r###"    file2    "###);     // Can edit with multiple files    edit_patterns(&["file2", "file3"]);    let (stdout, stderr) = test_env.jj_cmd_ok(&repo_path, &["sparse", "set", "--clear", "--edit"]);    insta::assert_snapshot!(stdout, @"");    insta::assert_snapshot!(stderr, @r###"    Added 1 files, modified 0 files, removed 0 files    "###);    insta::assert_snapshot!(read_patterns(), @"");    let stdout = test_env.jj_cmd_success(&repo_path, &["sparse", "list"]);    insta::assert_snapshot!(stdout, @r###"    file2    file3    "###);}