fix(rome_cli): Use lines() separator for os independent git ignore pa…

CHANGELOG.md

@@ -6,6 +6,7 @@
 
 #### Other changes
 
+- Fixes [#4556](https://github.com/rome/tools/issues/4556) using `lines()` to enable OS independent line parsing when processing the .gitignore file.
 - Add a new option to ignore unknown files
 
 	```shell

crates/rome_cli/src/vcs.rs

@@ -77,7 +77,7 @@ pub(crate) fn read_vcs_ignore_file(
 
             if let Some((buffer, _)) = buffer {
                 return Ok(buffer
-                    .split('\n')
+                    .lines()
                     // remove empty lines
                     .filter(|line| !line.is_empty())
                     .filter_map(|item| {

crates/rome_cli/tests/commands/check.rs

@@ -1848,6 +1848,68 @@ file2.js
     ));
 }
 
+#[test]
+fn ignore_vcs_os_independent_parse() {
+    let mut fs = MemoryFileSystem::default();
+    let mut console = BufferConsole::default();
+
+    let rome_json = r#"{
+        "vcs": {
+            "enabled": true,
+            "clientKind": "git",
+            "useIgnoreFile": true
+        }
+    }"#;
+
+    let git_ignore = "something.js\nfile2.js\r\nfile3.js";
+
+    let code3 = r#"console.log('rome is cool');"#;
+    let code2 = r#"foo.call(); bar.call();"#;
+    let code1 = r#"blah.call();"#;
+
+    let file_path1 = Path::new("file1.js");
+    fs.insert(file_path1.into(), code1.as_bytes());
+
+    // ignored files
+    let file_path2 = Path::new("file2.js");
+    fs.insert(file_path2.into(), code2.as_bytes());
+    let file_path3 = Path::new("file3.js");
+    fs.insert(file_path3.into(), code3.as_bytes());
+
+    // configuration
+    let config_path = Path::new("rome.json");
+    fs.insert(config_path.into(), rome_json.as_bytes());
+
+    // git folder
+    let git_folder = Path::new(".git");
+    fs.insert(git_folder.into(), "".as_bytes());
+
+    // git ignore file
+    let ignore_file = Path::new(".gitignore");
+    fs.insert(ignore_file.into(), git_ignore.as_bytes());
+
+    let result = run_cli(
+        DynRef::Borrowed(&mut fs),
+        &mut console,
+        Args::from(&[
+            ("check"),
+            file_path1.as_os_str().to_str().unwrap(),
+            file_path2.as_os_str().to_str().unwrap(),
+            file_path3.as_os_str().to_str().unwrap(),
+        ]),
+    );
+
+    assert!(result.is_ok(), "run_cli returned {result:?}");
+
+    assert_cli_snapshot(SnapshotPayload::new(
+        module_path!(),
+        "ignore_vcs_os_independent_parse",
+        fs,
+        console,
+        result,
+    ));
+}
+
 #[test]
 fn ignore_vcs_ignored_file_via_cli() {
     let mut fs = MemoryFileSystem::default();

crates/rome_cli/tests/snapshots/main_commands_check/ignore_vcs_os_independent_parse.snap

@@ -0,0 +1,56 @@
+---
+source: crates/rome_cli/tests/snap_test.rs
+assertion_line: 346
+expression: content
+---
+## `rome.json`
+
+```json
+{
+  "vcs": {
+    "enabled": true,
+    "clientKind": "git",
+    "useIgnoreFile": true
+  }
+}
+```
+
+## `.git`
+
+```git
+
+```
+
+## `.gitignore`
+
+```gitignore
+something.js
+file2.js
+file3.js
+```
+
+## `file1.js`
+
+```js
+blah.call();
+```
+
+## `file2.js`
+
+```js
+foo.call(); bar.call();
+```
+
+## `file3.js`
+
+```js
+console.log('rome is cool');
+```
+
+# Emitted Messages
+
+```block
+Checked 1 file(s) in <TIME>
+```
+
+