refactor: initial project layout

Cargo.toml

@@ -154,8 +154,8 @@ biome_yaml_parser            = { version = "0.0.1", path = "./crates/biome_yaml_
 biome_yaml_syntax            = { version = "0.0.1", path = "./crates/biome_yaml_syntax" }
 
 biome_markup        = { version = "0.5.7", path = "./crates/biome_markup" }
+biome_package       = { version = "0.5.7", path = "./crates/biome_package" }
 biome_parser        = { version = "0.5.7", path = "./crates/biome_parser" }
-biome_project       = { version = "0.5.7", path = "./crates/biome_project" }
 biome_rowan         = { version = "0.5.7", path = "./crates/biome_rowan" }
 biome_string_case   = { version = "0.5.7", path = "./crates/biome_string_case" }
 biome_suppression   = { version = "0.5.7", path = "./crates/biome_suppression" }

crates/biome_cli/src/commands/mod.rs

@@ -635,20 +635,6 @@ pub(crate) fn validate_configuration_diagnostics(
     Ok(())
 }
 
-fn resolve_manifest(fs: &dyn FileSystem) -> Result<Option<(BiomePath, String)>, WorkspaceError> {
-    let result = fs.auto_search(
-        &fs.working_directory().unwrap_or_default(),
-        &["package.json"],
-        false,
-    )?;
-
-    if let Some(result) = result {
-        return Ok(Some((BiomePath::new(result.file_path), result.content)));
-    }
-
-    Ok(None)
-}
-
 fn get_files_to_process_with_cli_options(
     since: Option<&str>,
     changed: bool,
@@ -774,7 +760,6 @@ pub(crate) trait CommandRunner: Sized {
     /// - Configure the VCS integration
     /// - Computes the paths to traverse/handle. This changes based on the VCS arguments that were passed.
     /// - Register a project folder using the working directory.
-    /// - Resolves the closets manifest AKA `package.json` and registers it.
     /// - Updates the settings that belong to the project registered
     fn configure_workspace(
         &mut self,
@@ -807,11 +792,6 @@ pub(crate) trait CommandRunner: Sized {
             open_uninitialized: true,
         })?;
 
-        let manifest_data = resolve_manifest(fs)?;
-
-        if let Some((path, content)) = manifest_data {
-            workspace.set_manifest_for_project((project_key, path, content).into())?;
-        }
         workspace.update_settings(UpdateSettingsParams {
             project_key,
             workspace_directory: configuration_path.map(BiomePath::from),

crates/biome_cli/tests/commands/lint.rs

@@ -7,7 +7,8 @@ use crate::configs::{
 };
 use crate::snap_test::{assert_file_contents, markup_to_string, SnapshotPayload};
 use crate::{
-    assert_cli_snapshot, run_cli, run_cli_with_dyn_fs, FORMATTED, LINT_ERROR, PARSE_ERROR,
+    assert_cli_snapshot, run_cli, run_cli_with_dyn_fs, run_cli_with_server_workspace, FORMATTED,
+    LINT_ERROR, PARSE_ERROR,
 };
 use biome_console::{markup, BufferConsole, LogLevel, MarkupBuf};
 use biome_fs::{ErrorEntry, FileSystemExt, MemoryFileSystem, OsFileSystem};
@@ -3841,3 +3842,158 @@ fn linter_shows_the_default_severity_of_rule_on() {
         result,
     ));
 }
+
+#[test]
+fn linter_finds_package_json_for_no_undeclared_dependencies() {
+    let mut console = BufferConsole::default();
+    let mut fs = MemoryFileSystem::default();
+
+    fs.insert(
+        Utf8Path::new("biome.json").into(),
+        r#"{
+    "linter": {
+        "rules": {
+            "correctness": {
+                "noUndeclaredDependencies": "on"
+            }
+        }
+    }
+}"#
+        .as_bytes(),
+    );
+
+    fs.insert(
+        Utf8Path::new("frontend/package.json").into(),
+        r#"{
+    "dependencies": {
+        "react": "19.0.0"
+    }
+}"#
+        .as_bytes(),
+    );
+
+    let file = Utf8Path::new("frontend/file1.js");
+    fs.insert(file.into(), r#"import 'react-dom'"#.as_bytes());
+    let (fs, result) = run_cli_with_server_workspace(
+        fs,
+        &mut console,
+        Args::from(["lint", file.as_str()].as_slice()),
+    );
+    assert_cli_snapshot(SnapshotPayload::new(
+        module_path!(),
+        "linter_finds_package_json_for_no_undeclared_dependencies",
+        fs,
+        console,
+        result,
+    ));
+}
+
+#[test]
+fn linter_finds_nested_package_json_for_no_undeclared_dependencies() {
+    let mut console = BufferConsole::default();
+    let mut fs = MemoryFileSystem::default();
+
+    fs.insert(
+        Utf8Path::new("biome.json").into(),
+        r#"{
+    "linter": {
+        "rules": {
+            "correctness": {
+                "noUndeclaredDependencies": "on"
+            }
+        }
+    }
+}"#
+        .as_bytes(),
+    );
+
+    fs.insert(
+        Utf8Path::new("package.json").into(),
+        r#"{
+    "dependencies": {
+        "react-dom": "19.0.0"
+    }
+}"#
+        .as_bytes(),
+    );
+
+    fs.insert(
+        Utf8Path::new("frontend/package.json").into(),
+        r#"{
+    "dependencies": {
+        "react": "19.0.0"
+    }
+}"#
+        .as_bytes(),
+    );
+
+    let file = Utf8Path::new("frontend/file1.js");
+    fs.insert(file.into(), r#"import 'react-dom'"#.as_bytes());
+    let (fs, result) = run_cli_with_server_workspace(
+        fs,
+        &mut console,
+        Args::from(["lint", file.as_str()].as_slice()),
+    );
+    assert_cli_snapshot(SnapshotPayload::new(
+        module_path!(),
+        "linter_finds_nested_package_json_for_no_undeclared_dependencies",
+        fs,
+        console,
+        result,
+    ));
+}
+
+#[test]
+fn linter_finds_nested_package_json_for_no_undeclared_dependencies_inversed() {
+    let mut console = BufferConsole::default();
+    let mut fs = MemoryFileSystem::default();
+
+    fs.insert(
+        Utf8Path::new("biome.json").into(),
+        r#"{
+    "linter": {
+        "rules": {
+            "correctness": {
+                "noUndeclaredDependencies": "on"
+            }
+        }
+    }
+}"#
+        .as_bytes(),
+    );
+
+    fs.insert(
+        Utf8Path::new("package.json").into(),
+        r#"{
+    "dependencies": {
+        "react": "19.0.0"
+    }
+}"#
+        .as_bytes(),
+    );
+
+    fs.insert(
+        Utf8Path::new("frontend/package.json").into(),
+        r#"{
+    "dependencies": {
+        "react-dom": "19.0.0"
+    }
+}"#
+        .as_bytes(),
+    );
+
+    let file = Utf8Path::new("frontend/file1.js");
+    fs.insert(file.into(), r#"import 'react-dom'"#.as_bytes());
+    let (fs, result) = run_cli_with_server_workspace(
+        fs,
+        &mut console,
+        Args::from(["lint", file.as_str()].as_slice()),
+    );
+    assert_cli_snapshot(SnapshotPayload::new(
+        module_path!(),
+        "linter_finds_nested_package_json_for_no_undeclared_dependencies_inversed",
+        fs,
+        console,
+        result,
+    ));
+}

crates/biome_cli/tests/main.rs

@@ -389,3 +389,40 @@ pub(crate) fn run_cli_with_dyn_fs(
         }
     }
 }
+
+/// Create an [App] instance using the provided [FileSystem] and [Console]
+/// instance, and using an in-process server instance of the workspace
+pub(crate) fn run_cli_with_server_workspace(
+    fs: MemoryFileSystem,
+    console: &mut dyn Console,
+    args: bpaf::Args,
+) -> (MemoryFileSystem, Result<(), CliDiagnostic>) {
+    use biome_service::{workspace, WorkspaceRef};
+
+    let files = fs.files.clone();
+
+    let workspace = workspace::server(Box::new(fs));
+    let app = App::new(console, WorkspaceRef::Owned(workspace));
+
+    let mut session = CliSession { app };
+    let command = biome_command().run_inner(args);
+    let result = match command {
+        Ok(command) => session.run(command),
+        Err(failure) => {
+            if let ParseFailure::Stdout(help, _) = &failure {
+                let console = &mut session.app.console;
+                console.log(markup! {{help.to_string()}});
+                Ok(())
+            } else {
+                Err(CliDiagnostic::parse_error_bpaf(failure))
+            }
+        }
+    };
+
+    // This is a little bit of a workaround to allow us to easily create
+    // a snapshot of the files even though the original file system was
+    // consumed by the workspace.
+    let fs = MemoryFileSystem::from_files(files);
+
+    (fs, result)
+}