// 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 as _; use crate::common::TestEnvironment; #[test]fn test_sparse_manage_patterns() {    let mut test_env = TestEnvironment::default();    test_env.run_jj_in(".", ["git", "init", "repo"]).success();    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 output = test_env.run_jj_in(&repo_path, ["sparse", "list"]);    insta::assert_snapshot!(output, @r"    .    [EOF]    ");     // Can stop tracking all files    let output = test_env.run_jj_in(&repo_path, ["sparse", "set", "--remove", "."]);    insta::assert_snapshot!(output, @r"    ------- stderr -------    Added 0 files, modified 0 files, removed 3 files    [EOF]    ");    // The list is now empty    let output = test_env.run_jj_in(&repo_path, ["sparse", "list"]);    insta::assert_snapshot!(output, @"");    // 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 output = test_env.run_jj_in(&repo_path, ["file", "list"]);    insta::assert_snapshot!(output, @r"    file1    file2    file3    [EOF]    ");     // Run commands in sub directory to ensure that patterns are parsed as    // workspace-relative paths, not cwd-relative ones.    let sub_dir = repo_path.join("sub");    std::fs::create_dir(&sub_dir).unwrap();     // Not a workspace-relative path    let output = test_env.run_jj_in(&sub_dir, ["sparse", "set", "--add=../file2"]);    insta::assert_snapshot!(output, @r#"    ------- stderr -------    error: invalid value '../file2' for '--add <ADD>': Invalid component ".." in repo-relative path "../file2"     For more information, try '--help'.    [EOF]    [exit status: 2]    "#);     // Can `--add` a few files    let output = test_env.run_jj_in(        &sub_dir,        ["sparse", "set", "--add", "file2", "--add", "file3"],    );    insta::assert_snapshot!(output, @r"    ------- stderr -------    Added 2 files, modified 0 files, removed 0 files    [EOF]    ");    let output = test_env.run_jj_in(&sub_dir, ["sparse", "list"]);    insta::assert_snapshot!(output, @r"    file2    file3    [EOF]    ");    assert!(!repo_path.join("file1").exists());    assert!(repo_path.join("file2").exists());    assert!(repo_path.join("file3").exists());     // Can combine `--add` and `--remove`    let output = test_env.run_jj_in(        &sub_dir,        [            "sparse", "set", "--add", "file1", "--remove", "file2", "--remove", "file3",        ],    );    insta::assert_snapshot!(output, @r"    ------- stderr -------    Added 1 files, modified 0 files, removed 2 files    [EOF]    ");    let output = test_env.run_jj_in(&sub_dir, ["sparse", "list"]);    insta::assert_snapshot!(output, @r"    file1    [EOF]    ");    assert!(repo_path.join("file1").exists());    assert!(!repo_path.join("file2").exists());    assert!(!repo_path.join("file3").exists());     // Can use `--clear` and `--add`    let output = test_env.run_jj_in(&sub_dir, ["sparse", "set", "--clear", "--add", "file2"]);    insta::assert_snapshot!(output, @r"    ------- stderr -------    Added 1 files, modified 0 files, removed 1 files    [EOF]    ");    let output = test_env.run_jj_in(&sub_dir, ["sparse", "list"]);    insta::assert_snapshot!(output, @r"    file2    [EOF]    ");    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 output = test_env.run_jj_in(&sub_dir, ["sparse", "reset"]);    insta::assert_snapshot!(output, @r"    ------- stderr -------    Added 2 files, modified 0 files, removed 0 files    [EOF]    ");    let output = test_env.run_jj_in(&sub_dir, ["sparse", "list"]);    insta::assert_snapshot!(output, @r"    .    [EOF]    ");    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 output = test_env.run_jj_in(&sub_dir, ["sparse", "edit"]);    insta::assert_snapshot!(output, @r"    ------- stderr -------    Added 0 files, modified 0 files, removed 2 files    [EOF]    ");    insta::assert_snapshot!(read_patterns(), @".");    let output = test_env.run_jj_in(&sub_dir, ["sparse", "list"]);    insta::assert_snapshot!(output, @r"    file1    [EOF]    ");     // Can edit with multiple files    edit_patterns(&["file3", "file2", "file3"]);    let output = test_env.run_jj_in(&sub_dir, ["sparse", "edit"]);    insta::assert_snapshot!(output, @r"    ------- stderr -------    Added 2 files, modified 0 files, removed 1 files    [EOF]    ");    insta::assert_snapshot!(read_patterns(), @"file1");    let output = test_env.run_jj_in(&sub_dir, ["sparse", "list"]);    insta::assert_snapshot!(output, @r"    file2    file3    [EOF]    ");} #[test]fn test_sparse_editor_avoids_unc() {    use std::path::PathBuf;     let mut test_env = TestEnvironment::default();    test_env.run_jj_in(".", ["git", "init", "repo"]).success();    let repo_path = test_env.env_root().join("repo");    let edit_script = test_env.set_up_fake_editor();     std::fs::write(edit_script, "dump-path path").unwrap();    test_env.run_jj_in(&repo_path, ["sparse", "edit"]).success();     let edited_path =        PathBuf::from(std::fs::read_to_string(test_env.env_root().join("path")).unwrap());    // While `assert!(!edited_path.starts_with("//?/"))` could work here in most    // cases, it fails when it is not safe to strip the prefix, such as paths    // over 260 chars.    assert_eq!(edited_path, dunce::simplified(&edited_path));}