This commit add Cargo-style project discovery for Buck and Bazel users.

This feature requires the user to add a command that generates a
`rust-project.json` from a set of files. Project discovery can be invoked
in two ways:

1. At extension activation time, which includes the generated
   `rust-project.json` as part of the linkedProjects argument in
    InitializeParams
2. Through a new command titled "Add current file to workspace", which
   makes use of a new, rust-analyzer specific LSP request that adds
   the workspace without erasing any existing workspaces.

I think that the command-running functionality _could_ merit being
placed into its own extension (and expose it via extension contribution
points), if only provide build-system idiomatic progress reporting and
status handling, but I haven't (yet) made an extension that does this.
This commit is contained in:
David Barsky 2023-03-09 15:06:26 -05:00
parent 9549753352
commit 8af3d6367e
14 changed files with 258 additions and 25 deletions

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@ -4,6 +4,7 @@
use std::{fmt, str::FromStr};
use cfg::CfgOptions;
use serde::Serialize;
#[derive(Clone, Eq, PartialEq, Debug)]
pub enum CfgFlag {
@ -38,6 +39,18 @@ fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
}
}
impl Serialize for CfgFlag {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: serde::Serializer,
{
match self {
CfgFlag::Atom(s) => serializer.serialize_str(s),
CfgFlag::KeyValue { .. } => serializer.serialize_str(&format!("{}", &self)),
}
}
}
impl Extend<CfgFlag> for CfgOptions {
fn extend<T: IntoIterator<Item = CfgFlag>>(&mut self, iter: T) {
for cfg_flag in iter {

View File

@ -54,7 +54,7 @@
use base_db::{CrateDisplayName, CrateId, CrateName, Dependency, Edition};
use paths::{AbsPath, AbsPathBuf};
use rustc_hash::FxHashMap;
use serde::{de, Deserialize};
use serde::{de, ser, Deserialize, Serialize};
use crate::cfg_flag::CfgFlag;
@ -171,14 +171,14 @@ pub fn path(&self) -> &AbsPath {
}
}
#[derive(Deserialize, Debug, Clone)]
#[derive(Serialize, Deserialize, Debug, Clone)]
pub struct ProjectJsonData {
sysroot: Option<PathBuf>,
sysroot_src: Option<PathBuf>,
crates: Vec<CrateData>,
}
#[derive(Deserialize, Debug, Clone)]
#[derive(Serialize, Deserialize, Debug, Clone)]
struct CrateData {
display_name: Option<String>,
root_module: PathBuf,
@ -200,7 +200,7 @@ struct CrateData {
repository: Option<String>,
}
#[derive(Deserialize, Debug, Clone)]
#[derive(Serialize, Deserialize, Debug, Clone)]
#[serde(rename = "edition")]
enum EditionData {
#[serde(rename = "2015")]
@ -221,16 +221,16 @@ fn from(data: EditionData) -> Self {
}
}
#[derive(Deserialize, Debug, Clone)]
#[derive(Serialize, Deserialize, Debug, Clone)]
struct DepData {
/// Identifies a crate by position in the crates array.
#[serde(rename = "crate")]
krate: usize,
#[serde(deserialize_with = "deserialize_crate_name")]
#[serde(deserialize_with = "deserialize_crate_name", serialize_with = "serialize_crate_name")]
name: CrateName,
}
#[derive(Deserialize, Debug, Clone)]
#[derive(Serialize, Deserialize, Debug, Clone)]
struct CrateSource {
include_dirs: Vec<PathBuf>,
exclude_dirs: Vec<PathBuf>,
@ -243,3 +243,10 @@ fn deserialize_crate_name<'de, D>(de: D) -> Result<CrateName, D::Error>
let name = String::deserialize(de)?;
CrateName::new(&name).map_err(|err| de::Error::custom(format!("invalid crate name: {err:?}")))
}
fn serialize_crate_name<S>(crate_name: &CrateName, serializer: S) -> Result<S::Ok, S::Error>
where
S: ser::Serializer,
{
crate_name.serialize(serializer)
}

View File

@ -272,7 +272,6 @@ struct ConfigData {
/// The warnings will be indicated by a blue squiggly underline in code
/// and a blue icon in the `Problems Panel`.
diagnostics_warningsAsInfo: Vec<String> = "[]",
/// These directories will be ignored by rust-analyzer. They are
/// relative to the workspace root, and globs are not supported. You may
/// also need to add the folders to Code's `files.watcherExclude`.
@ -895,6 +894,15 @@ pub fn linked_projects(&self) -> Vec<LinkedProject> {
}
}
pub fn add_linked_projects(&mut self, linked_projects: Vec<ProjectJsonData>) {
let mut linked_projects = linked_projects
.into_iter()
.map(ManifestOrProjectJson::ProjectJson)
.collect::<Vec<ManifestOrProjectJson>>();
self.data.linkedProjects.append(&mut linked_projects);
}
pub fn did_save_text_document_dynamic_registration(&self) -> bool {
let caps = try_or_def!(self.caps.text_document.as_ref()?.synchronization.clone()?);
caps.did_save == Some(true) && caps.dynamic_registration == Some(true)

View File

@ -5,6 +5,7 @@
use std::{
io::Write as _,
process::{self, Stdio},
sync::Arc,
};
use anyhow::Context;
@ -46,6 +47,22 @@
pub(crate) fn handle_workspace_reload(state: &mut GlobalState, _: ()) -> Result<()> {
state.proc_macro_clients.clear();
state.proc_macro_changed = false;
state.fetch_workspaces_queue.request_op("reload workspace request".to_string());
state.fetch_build_data_queue.request_op("reload workspace request".to_string());
Ok(())
}
pub(crate) fn handle_add_project(
state: &mut GlobalState,
params: lsp_ext::AddProjectParams,
) -> Result<()> {
state.proc_macro_clients.clear();
state.proc_macro_changed = false;
let config = Arc::make_mut(&mut state.config);
config.add_linked_projects(params.project);
state.fetch_workspaces_queue.request_op("reload workspace request".to_string());
state.fetch_build_data_queue.request_op("reload workspace request".to_string());
Ok(())

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@ -9,6 +9,7 @@
notification::Notification, CodeActionKind, DocumentOnTypeFormattingParams,
PartialResultParams, Position, Range, TextDocumentIdentifier, WorkDoneProgressParams,
};
use project_model::ProjectJsonData;
use serde::{Deserialize, Serialize};
use crate::line_index::PositionEncoding;
@ -51,6 +52,20 @@ impl Request for ReloadWorkspace {
const METHOD: &'static str = "rust-analyzer/reloadWorkspace";
}
pub enum AddProject {}
impl Request for AddProject {
type Params = AddProjectParams;
type Result = ();
const METHOD: &'static str = "rust-analyzer/addProject";
}
#[derive(Serialize, Deserialize, Debug)]
#[serde(rename_all = "camelCase")]
pub struct AddProjectParams {
pub project: Vec<ProjectJsonData>,
}
pub enum SyntaxTree {}
impl Request for SyntaxTree {

View File

@ -625,6 +625,7 @@ fn on_request(&mut self, req: Request) {
.on_sync_mut::<lsp_ext::ReloadWorkspace>(handlers::handle_workspace_reload)
.on_sync_mut::<lsp_ext::MemoryUsage>(handlers::handle_memory_usage)
.on_sync_mut::<lsp_ext::ShuffleCrateGraph>(handlers::handle_shuffle_crate_graph)
.on_sync_mut::<lsp_ext::AddProject>(handlers::handle_add_project)
.on_sync::<lsp_ext::JoinLines>(handlers::handle_join_lines)
.on_sync::<lsp_ext::OnEnter>(handlers::handle_on_enter)
.on_sync::<lsp_types::request::SelectionRangeRequest>(handlers::handle_selection_range)

View File

@ -199,6 +199,11 @@
"title": "Reload workspace",
"category": "rust-analyzer"
},
{
"command": "rust-analyzer.addProject",
"title": "Add current file to workspace",
"category": "rust-analyzer"
},
{
"command": "rust-analyzer.reload",
"title": "Restart server",
@ -447,6 +452,17 @@
"Fill missing expressions with reasonable defaults, `new` or `default` constructors."
]
},
"rust-analyzer.discoverProjectCommand": {
"markdownDescription": "Sets the command that rust-analyzer uses to generate `rust-project.json` files. This command is\n only suggested if a build system like Buck or Bazel is used. The command must accept files as arguements and return \n a rust-project.json over stdout.",
"default": null,
"type": [
"null",
"array"
],
"items": {
"type": "string"
}
},
"rust-analyzer.cachePriming.enable": {
"markdownDescription": "Warm up caches on project load.",
"default": true,
@ -1904,4 +1920,4 @@
}
]
}
}
}

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@ -3,7 +3,7 @@ import * as lc from "vscode-languageclient";
import * as ra from "./lsp_ext";
import * as path from "path";
import { Ctx, Cmd, CtxInit } from "./ctx";
import { Ctx, Cmd, CtxInit, discoverWorkspace } from "./ctx";
import { applySnippetWorkspaceEdit, applySnippetTextEdits } from "./snippets";
import { spawnSync } from "child_process";
import { RunnableQuickPick, selectRunnable, createTask, createArgs } from "./run";
@ -749,6 +749,23 @@ export function reloadWorkspace(ctx: CtxInit): Cmd {
return async () => ctx.client.sendRequest(ra.reloadWorkspace);
}
export function addProject(ctx: CtxInit): Cmd {
return async () => {
const discoverProjectCommand = ctx.config.discoverProjectCommand;
if (!discoverProjectCommand) {
return;
}
let workspaces: JsonProject[] = await Promise.all(vscode.workspace.workspaceFolders!.map(async (folder): Promise<JsonProject> => {
return discoverWorkspace(vscode.workspace.textDocuments, discoverProjectCommand, { cwd: folder.uri.fsPath });
}));
await ctx.client.sendRequest(ra.addProject, {
project: workspaces
});
}
}
async function showReferencesImpl(
client: LanguageClient | undefined,
uri: string,

View File

@ -214,6 +214,10 @@ export class Config {
return this.get<boolean>("trace.extension");
}
get discoverProjectCommand() {
return this.get<string[] | undefined>("discoverProjectCommand")
}
get cargoRunner() {
return this.get<string | undefined>("cargoRunner");
}

View File

@ -4,10 +4,11 @@ import * as ra from "./lsp_ext";
import { Config, substituteVSCodeVariables } from "./config";
import { createClient } from "./client";
import { isRustDocument, isRustEditor, LazyOutputChannel, log, RustEditor } from "./util";
import { executeDiscoverProject, isRustDocument, isRustEditor, LazyOutputChannel, log, RustEditor } from "./util";
import { ServerStatusParams } from "./lsp_ext";
import { PersistentState } from "./persistent_state";
import { bootstrap } from "./bootstrap";
import { ExecOptions } from "child_process";
// We only support local folders, not eg. Live Share (`vlsl:` scheme), so don't activate if
// only those are in use. We use "Empty" to represent these scenarios
@ -16,12 +17,12 @@ import { bootstrap } from "./bootstrap";
export type Workspace =
| { kind: "Empty" }
| {
kind: "Workspace Folder";
}
kind: "Workspace Folder";
}
| {
kind: "Detached Files";
files: vscode.TextDocument[];
};
kind: "Detached Files";
files: vscode.TextDocument[];
};
export function fetchWorkspace(): Workspace {
const folders = (vscode.workspace.workspaceFolders || []).filter(
@ -35,12 +36,19 @@ export function fetchWorkspace(): Workspace {
? rustDocuments.length === 0
? { kind: "Empty" }
: {
kind: "Detached Files",
files: rustDocuments,
}
kind: "Detached Files",
files: rustDocuments,
}
: { kind: "Workspace Folder" };
}
export async function discoverWorkspace(files: readonly vscode.TextDocument[], command: string[], options: ExecOptions): Promise<JsonProject> {
const paths = files.map((f) => f.uri.fsPath).join(" ");
const joinedCommand = command.join(" ");
const data = await executeDiscoverProject(`${joinedCommand} -- ${paths}`, options);
return JSON.parse(data) as JsonProject;
}
export type CommandFactory = {
enabled: (ctx: CtxInit) => Cmd;
disabled?: (ctx: Ctx) => Cmd;
@ -63,6 +71,7 @@ export class Ctx {
private state: PersistentState;
private commandFactories: Record<string, CommandFactory>;
private commandDisposables: Disposable[];
private discoveredWorkspaces: JsonProject[] | undefined;
get client() {
return this._client;
@ -71,7 +80,7 @@ export class Ctx {
constructor(
readonly extCtx: vscode.ExtensionContext,
commandFactories: Record<string, CommandFactory>,
workspace: Workspace
workspace: Workspace,
) {
extCtx.subscriptions.push(this);
this.statusBar = vscode.window.createStatusBarItem(vscode.StatusBarAlignment.Left);
@ -169,7 +178,18 @@ export class Ctx {
};
}
const initializationOptions = substituteVSCodeVariables(rawInitializationOptions);
const discoverProjectCommand = this.config.discoverProjectCommand;
if (discoverProjectCommand) {
let workspaces: JsonProject[] = await Promise.all(vscode.workspace.workspaceFolders!.map(async (folder): Promise<JsonProject> => {
return discoverWorkspace(vscode.workspace.textDocuments, discoverProjectCommand, { cwd: folder.uri.fsPath });
}));
this.discoveredWorkspaces = workspaces;
}
let initializationOptions = substituteVSCodeVariables(rawInitializationOptions);
// this appears to be load-bearing, for better or worse.
await initializationOptions.update('linkedProjects', this.discoveredWorkspaces)
this._client = await createClient(
this.traceOutputChannel,

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@ -43,6 +43,10 @@ export const relatedTests = new lc.RequestType<lc.TextDocumentPositionParams, Te
"rust-analyzer/relatedTests"
);
export const reloadWorkspace = new lc.RequestType0<null, void>("rust-analyzer/reloadWorkspace");
export const addProject = new lc.RequestType<AddProjectParams, string, void>(
"rust-analyzer/addProject"
)
export const runFlycheck = new lc.NotificationType<{
textDocument: lc.TextDocumentIdentifier | null;
}>("rust-analyzer/runFlycheck");
@ -68,6 +72,8 @@ export const viewItemTree = new lc.RequestType<ViewItemTreeParams, string, void>
export type AnalyzerStatusParams = { textDocument?: lc.TextDocumentIdentifier };
export type AddProjectParams = { project: JsonProject[] };
export type ExpandMacroParams = {
textDocument: lc.TextDocumentIdentifier;
position: lc.Position;

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@ -24,11 +24,11 @@ export async function activate(
vscode.window
.showWarningMessage(
`You have both the rust-analyzer (rust-lang.rust-analyzer) and Rust (rust-lang.rust) ` +
"plugins enabled. These are known to conflict and cause various functions of " +
"both plugins to not work correctly. You should disable one of them.",
"plugins enabled. These are known to conflict and cause various functions of " +
"both plugins to not work correctly. You should disable one of them.",
"Got it"
)
.then(() => {}, console.error);
.then(() => { }, console.error);
}
const ctx = new Ctx(context, createCommands(), fetchWorkspace());
@ -146,13 +146,14 @@ function createCommands(): Record<string, CommandFactory> {
health: "stopped",
});
},
disabled: (_) => async () => {},
disabled: (_) => async () => { },
},
analyzerStatus: { enabled: commands.analyzerStatus },
memoryUsage: { enabled: commands.memoryUsage },
shuffleCrateGraph: { enabled: commands.shuffleCrateGraph },
reloadWorkspace: { enabled: commands.reloadWorkspace },
addProject: { enabled: commands.addProject },
matchingBrace: { enabled: commands.matchingBrace },
joinLines: { enabled: commands.joinLines },
parentModule: { enabled: commands.parentModule },

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@ -0,0 +1,91 @@
interface JsonProject {
/// Path to the directory with *source code* of
/// sysroot crates.
///
/// It should point to the directory where std,
/// core, and friends can be found:
///
/// https://github.com/rust-lang/rust/tree/master/library.
///
/// If provided, rust-analyzer automatically adds
/// dependencies on sysroot crates. Conversely,
/// if you omit this path, you can specify sysroot
/// dependencies yourself and, for example, have
/// several different "sysroots" in one graph of
/// crates.
sysroot_src?: string;
/// The set of crates comprising the current
/// project. Must include all transitive
/// dependencies as well as sysroot crate (libstd,
/// libcore and such).
crates: Crate[];
}
interface Crate {
/// Optional crate name used for display purposes,
/// without affecting semantics. See the `deps`
/// key for semantically-significant crate names.
display_name?: string;
/// Path to the root module of the crate.
root_module: string;
/// Edition of the crate.
edition: "2015" | "2018" | "2021";
/// Dependencies
deps: Dep[];
/// Should this crate be treated as a member of
/// current "workspace".
///
/// By default, inferred from the `root_module`
/// (members are the crates which reside inside
/// the directory opened in the editor).
///
/// Set this to `false` for things like standard
/// library and 3rd party crates to enable
/// performance optimizations (rust-analyzer
/// assumes that non-member crates don't change).
is_workspace_member?: boolean;
/// Optionally specify the (super)set of `.rs`
/// files comprising this crate.
///
/// By default, rust-analyzer assumes that only
/// files under `root_module.parent` can belong
/// to a crate. `include_dirs` are included
/// recursively, unless a subdirectory is in
/// `exclude_dirs`.
///
/// Different crates can share the same `source`.
///
/// If two crates share an `.rs` file in common,
/// they *must* have the same `source`.
/// rust-analyzer assumes that files from one
/// source can't refer to files in another source.
source?: {
include_dirs: string[],
exclude_dirs: string[],
},
/// The set of cfgs activated for a given crate, like
/// `["unix", "feature=\"foo\"", "feature=\"bar\""]`.
cfg: string[];
/// Target triple for this Crate.
///
/// Used when running `rustc --print cfg`
/// to get target-specific cfgs.
target?: string;
/// Environment variables, used for
/// the `env!` macro
env: { [key: string]: string; },
/// Whether the crate is a proc-macro crate.
is_proc_macro: boolean;
/// For proc-macro crates, path to compiled
/// proc-macro (.so file).
proc_macro_dylib_path?: string;
}
interface Dep {
/// Index of a crate in the `crates` array.
crate: number,
/// Name as should appear in the (implicit)
/// `extern crate name` declaration.
name: string,
}

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@ -150,9 +150,11 @@ export function memoizeAsync<Ret, TThis, Param extends string>(
/** Awaitable wrapper around `child_process.exec` */
export function execute(command: string, options: ExecOptions): Promise<string> {
log.info(`running command: ${command}`)
return new Promise((resolve, reject) => {
exec(command, options, (err, stdout, stderr) => {
if (err) {
log.error(err);
reject(err);
return;
}
@ -167,6 +169,21 @@ export function execute(command: string, options: ExecOptions): Promise<string>
});
}
export function executeDiscoverProject(command: string, options: ExecOptions): Promise<string> {
log.info(`running command: ${command}`)
return new Promise((resolve, reject) => {
exec(command, options, (err, stdout, _) => {
if (err) {
log.error(err);
reject(err);
return;
}
resolve(stdout.trimEnd());
});
});
}
export class LazyOutputChannel implements vscode.OutputChannel {
constructor(name: string) {
this.name = name;