#13316

Committed 22 Nov 2024 10:13PM UTC coverage: 89.121%. Remained the same

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Commit Message

Merge 44f0280cc into c5674f5d8

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86.4

/src/lsp/Project.ts

import { ProgramBuilder } from '../ProgramBuilder';
import * as EventEmitter from 'eventemitter3';
import util, { standardizePath as s } from '../util';
import * as path from 'path';
import type { ProjectConfig, ActivateResponse, LspDiagnostic, LspProject } from './LspProject';
import type { CompilerPlugin, Hover, MaybePromise } from '../interfaces';
import { DiagnosticMessages } from '../DiagnosticMessages';
import { URI } from 'vscode-uri';
import { Deferred } from '../deferred';
import type { StandardizedFileEntry } from 'roku-deploy';
import { rokuDeploy } from 'roku-deploy';
import type { DocumentSymbol, Position, Range, Location, WorkspaceSymbol } from 'vscode-languageserver-protocol';
import { CompletionList } from 'vscode-languageserver-protocol';
import { CancellationTokenSource } from 'vscode-languageserver-protocol';
import type { DocumentAction, DocumentActionWithStatus } from './DocumentManager';
import type { SignatureInfoObj } from '../Program';
import type { BsConfig } from '../BsConfig';
import type { Logger, LogLevel } from '../logging';
import { createLogger } from '../logging';
import * as fsExtra from 'fs-extra';

export class Project implements LspProject {
    public constructor(
        options?: {
            logger?: Logger;
            projectIdentifier?: string;
        }
    ) {
        this.logger = options?.logger ?? createLogger({
            //when running inside a worker thread, we don't want to use colors
            enableColor: false
        });
        this.projectIdentifier = options?.projectIdentifier ?? '';
    }

    /**
     * Activates this project. Every call to `activate` should completely reset the project, clear all used ram and start from scratch.
     */
    public async activate(options: ProjectConfig): Promise<ActivateResponse> {
        this.logger.info('Project.activate', options.projectPath);

        this.activateOptions = options;
        this.projectPath = options.projectPath ? util.standardizePath(options.projectPath) : options.projectPath;
        this.workspaceFolder = options.workspaceFolder ? util.standardizePath(options.workspaceFolder) : options.workspaceFolder;
        this.projectNumber = options.projectNumber;
        this.bsconfigPath = await this.getConfigFilePath(options);

        this.builder = new ProgramBuilder({
            //share our logger with ProgramBuilder, which will keep our level in sync with the one in the program
            logger: this.logger
        });

        this.builder.logger.prefix = `[${this.projectIdentifier}]`;
        this.disposables.push(this.builder);

        let cwd: string;
        //if the config file exists, use it and its folder as cwd
        if (this.bsconfigPath && await util.pathExists(this.bsconfigPath)) {
            cwd = path.dirname(this.bsconfigPath);
            //load the bsconfig file contents (used for performance optimizations externally)
            try {
                this.bsconfigFileContents = (await fsExtra.readFile(this.bsconfigPath)).toString();
            } catch { }

        } else {
            cwd = this.projectPath;
            //config file doesn't exist...let `brighterscript` resolve the default way
            this.bsconfigPath = undefined;
        }

        const builderOptions = {
            cwd: cwd,
            project: this.bsconfigPath,
            watch: false,
            createPackage: false,
            deploy: false,
            copyToStaging: false,
            showDiagnosticsInConsole: false,
            skipInitialValidation: true
        } as BsConfig;

        //Assign .files (mostly used for standalone projects) if available, as a dedicated assignment because `undefined` overrides the default value in the `bsconfig.json`
        if (options.files) {
            builderOptions.files = rokuDeploy.normalizeFilesArray(options.files);
        }

        //run the builder to initialize the program. Skip validation for now, we'll trigger it soon in a more cancellable way
        await this.builder.run({
            ...builderOptions,
            skipInitialValidation: true,
            //don't show diagnostics in the console since this is run via the language server, they're presented in a different way
            showDiagnosticsInConsole: false
        });

        //flush diagnostics every time the program finishes validating
        //this plugin must be added LAST to the program to ensure we can see all diagnostics
        this.builder.plugins.add({
            name: 'bsc-language-server',
            afterProgramValidate: () => {
                const diagnostics = this.getDiagnostics();
                this.emit('diagnostics', {
                    diagnostics: diagnostics
                });
            }
        } as CompilerPlugin);

        //if we found a deprecated brsconfig.json, add a diagnostic warning the user
        if (this.bsconfigPath && path.basename(this.bsconfigPath) === 'brsconfig.json') {
            this.builder.addDiagnostic(this.bsconfigPath, {
                ...DiagnosticMessages.brsConfigJsonIsDeprecated(),
                range: util.createRange(0, 0, 0, 0)
            });
        }

        //trigger a validation (but don't wait for it. That way we can cancel it sooner if we get new incoming data or requests)
        void this.validate();

        this.activationDeferred.resolve();

        return {
            bsconfigPath: this.bsconfigPath,
            logLevel: this.builder.program.options.logLevel as LogLevel,
            rootDir: this.builder.program.options.rootDir,
            filePatterns: this.filePatterns
        };
    }

    public isStandaloneProject = false;

    public logger: Logger;

    /**
     * Options used to activate this project
     */
    public activateOptions: ProjectConfig;

    public get rootDir() {
        return this.builder.program.options.rootDir;
    }
    /**
     * The file patterns from bsconfig.json that were used to find all files for this project
     */
    public get filePatterns() {
        if (!this.builder) {
            return undefined;
        }
        const patterns = rokuDeploy.normalizeFilesArray(this.builder.program.options.files);
        return patterns.map(x => {
            return typeof x === 'string' ? x : x.src;
        });
    }

    /**
     * Gets resolved when the project has finished activating
     */
    private activationDeferred = new Deferred();

    /**
     * Promise that resolves when the project finishes activating
     * @returns a promise that resolves when the project finishes activating
     */
    public whenActivated() {
        return this.activationDeferred.promise;
    }

    private validationCancelToken: CancellationTokenSource;

    /**
     * Validate the project. This will trigger a full validation on any scopes that were changed since the last validation,
     * and will also eventually emit a new 'diagnostics' event that includes all diagnostics for the project.
     *
     * This will cancel any currently running validation and then run a new one.
     */
    public async validate() {
        this.logger.debug('Project.validate');

        this.cancelValidate();
        //store
        this.validationCancelToken = new CancellationTokenSource();

        try {
            this.emit('validate-begin', {});
            await this.builder.program.validate({
                async: true,
                cancellationToken: this.validationCancelToken.token
            });
        } finally {
            this.emit('validate-end', {});
        }
    }

    /**
     * Cancel any active validation that's running
     */
    public cancelValidate() {
        this.validationCancelToken?.cancel();
        delete this.validationCancelToken;
    }

    public getDiagnostics() {
        const diagnostics = this.builder.getDiagnostics();
        return diagnostics.map(x => {
            const uri = URI.file(x.file.srcPath).toString();
            return {
                ...util.toDiagnostic(x, uri),
                uri: uri
            };
        });
    }

    /**
     * Promise that resolves the next time the system is idle. If the system is already idle, it will resolve immediately
     */
    private async onIdle(): Promise<void> {
        await Promise.all([
            this.activationDeferred.promise
        ]);
    }

    /**
     * Add or replace the in-memory contents of the file at the specified path. This is typically called as the user is typing.
     * This will cancel any pending validation cycles and queue a future validation cycle instead.
     */
    public async applyFileChanges(documentActions: DocumentAction[]): Promise<DocumentActionWithStatus[]> {
        this.logger.debug('Project.applyFileChanges', documentActions.map(x => x.srcPath));

        await this.onIdle();

        let didChangeFiles = false;
        const result = [...documentActions] as DocumentActionWithStatus[];
        // eslint-disable-next-line @typescript-eslint/prefer-for-of
        for (let i = 0; i < result.length; i++) {
            const action = result[i];
            let didChangeThisFile = false;
            //if this is a `set` and the file matches the project's files array, set it
            if (action.type === 'set' && Project.willAcceptFile(action.srcPath, this.builder.program.options.files, this.builder.program.options.rootDir)) {
                //load the file contents from disk if we don't have an in memory copy
                const fileContents = action.fileContents ?? util.readFileSync(action.srcPath)?.toString();

                //if we got file contents, set the file on the program
                if (fileContents !== undefined) {
                    didChangeThisFile = this.setFile(action.srcPath, fileContents);
                    //this file was accepted by the program
                    action.status = 'accepted';

                    //if we can't get file contents, apply this as a delete
                } else {
                    action.status = 'accepted';
                    result.push({
                        id: action.id,
                        srcPath: action.srcPath,
                        type: 'delete',
                        status: undefined,
                        allowStandaloneProject: false
                    });
                    continue;
                }

                //try to delete the file or directory
            } else if (action.type === 'delete') {
                didChangeThisFile = this.removeFileOrDirectory(action.srcPath);
                //if we deleted at least one file, mark this action as accepted
                action.status = didChangeThisFile ? 'accepted' : 'rejected';

                //we did not handle this action, so reject
            } else {
                action.status = 'rejected';
            }
            didChangeFiles = didChangeFiles || didChangeThisFile;
        }
        if (didChangeFiles) {
            //trigger a validation (but don't wait for it. That way we can cancel it sooner if we get new incoming data or requests)
            this.validate().catch(e => this.logger.error(e));
        }

        this.logger.debug('project.applyFileChanges done', documentActions.map(x => x.srcPath));

        return result;
    }

    /**
     * Determine if this project will accept the file at the specified path (i.e. does it match a pattern in the project's files array)
     */
    public static willAcceptFile(srcPath: string, files: BsConfig['files'], rootDir: string) {
        srcPath = util.standardizePath(srcPath);
        if (rokuDeploy.getDestPath(srcPath, files, rootDir) !== undefined) {
            return true;
            //is this exact path in the `files` array? (this check is mostly for standalone projects)
        } else if ((files as StandardizedFileEntry[]).find(x => s`${x.src}` === srcPath)) {
            return true;
        }
        return false;
    }

    /**
     * Set new contents for a file. This is safe to call any time. Changes will be queued and flushed at the correct times
     * during the program's lifecycle flow
     * @param srcPath absolute source path of the file
     * @param fileContents the text contents of the file
     * @returns true if this program accepted and added the file. false if the program didn't want the file, or if the contents didn't change
     */
    private setFile(srcPath: string, fileContents: string) {
        this.logger.debug('Project.setFile', { srcPath: srcPath, fileContentsLength: fileContents.length });

        const { files, rootDir } = this.builder.program.options;

        //get the dest path for this file.
        let destPath = rokuDeploy.getDestPath(srcPath, files, rootDir);

        //if we have a file and the contents haven't changed
        let file = this.builder.program.getFile(destPath);
        if (file && file.fileContents === fileContents) {
            return false;
        }

        //if we got a dest path, then the program wants this file
        if (destPath) {
            this.builder.program.setFile(
                {
                    src: srcPath,
                    dest: destPath
                },
                fileContents
            );
            return true;
        }
        return false;
    }

    /**
     * Remove the in-memory file at the specified path. This is typically called when the user (or file system watcher) triggers a file delete
     * @param srcPath absolute path to the File
     * @returns true if we found and removed at least one file, or false if no files were removed
     */
    private removeFileOrDirectory(srcPath: string) {
        this.logger.debug('Project.removeFileOrDirectory', srcPath);

        srcPath = util.standardizePath(srcPath);
        //if this is a direct file match, remove the file
        if (this.builder.program.hasFile(srcPath)) {
            this.builder.program.removeFile(srcPath);
            return true;
        }

        //maybe this is a directory. Remove all files that start with this path
        let removedSomeFiles = false;
        let lowerSrcPath = srcPath.toLowerCase();
        for (let file of Object.values(this.builder.program.files)) {
            //if the file path starts with the parent path and the file path does not exactly match the folder path
            if (file.srcPath?.toLowerCase().startsWith(lowerSrcPath)) {
                this.logger.debug('Project.removeFileOrDirectory removing file because it matches the given directory', { dir: srcPath, srcPath: file.srcPath });

                this.builder.program.removeFile(file.srcPath, false);
                removedSomeFiles = true;
            }
        }
        //return true if we removed at least one file
        return removedSomeFiles;
    }

    /**
     * Get the full list of semantic tokens for the given file path
     * @param options options for getting semantic tokens
     * @param options.srcPath absolute path to the source file
     */
    public async getSemanticTokens(options: { srcPath: string }) {
        await this.onIdle();
        if (this.builder.program.hasFile(options.srcPath)) {
            return this.builder.program.getSemanticTokens(options.srcPath);
        }
    }

    public async transpileFile(options: { srcPath: string }) {
        await this.onIdle();
        if (this.builder.program.hasFile(options.srcPath)) {
            return this.builder.program.getTranspiledFileContents(options.srcPath);
        }
    }

    public async getHover(options: { srcPath: string; position: Position }): Promise<Hover[]> {
        await this.onIdle();
        if (this.builder.program.hasFile(options.srcPath)) {
            return this.builder.program.getHover(options.srcPath, options.position);
        }
    }

    public async getDefinition(options: { srcPath: string; position: Position }): Promise<Location[]> {
        await this.onIdle();
        if (this.builder.program.hasFile(options.srcPath)) {
            return this.builder.program.getDefinition(options.srcPath, options.position);
        }
    }

    public async getSignatureHelp(options: { srcPath: string; position: Position }): Promise<SignatureInfoObj[]> {
        await this.onIdle();
        if (this.builder.program.hasFile(options.srcPath)) {
            return this.builder.program.getSignatureHelp(options.srcPath, options.position);
        }
    }

    public async getDocumentSymbol(options: { srcPath: string }): Promise<DocumentSymbol[]> {
        await this.onIdle();
        if (this.builder.program.hasFile(options.srcPath)) {
            return this.builder.program.getDocumentSymbols(options.srcPath);
        }
    }

    public async getWorkspaceSymbol(): Promise<WorkspaceSymbol[]> {
        await this.onIdle();
        const result = this.builder.program.getWorkspaceSymbols();
        return result;
    }

    public async getReferences(options: { srcPath: string; position: Position }) {
        await this.onIdle();
        if (this.builder.program.hasFile(options.srcPath)) {
            return this.builder.program.getReferences(options.srcPath, options.position);
        }
    }

    public async getCodeActions(options: { srcPath: string; range: Range }) {
        await this.onIdle();

        if (this.builder.program.hasFile(options.srcPath)) {
            const codeActions = this.builder.program.getCodeActions(options.srcPath, options.range);
            //clone each diagnostic since certain diagnostics can have circular reference properties that kill the language server if serialized
            for (const codeAction of codeActions ?? []) {
                if (codeAction.diagnostics) {
                    codeAction.diagnostics = codeAction.diagnostics?.map(x => util.toDiagnostic(x, options.srcPath));
                }
            }
            return codeActions;
        }
    }

    public async getCompletions(options: { srcPath: string; position: Position }): Promise<CompletionList> {
        await this.onIdle();

        this.logger.debug('Project.getCompletions', options.srcPath, options.position);

        if (this.builder.program.hasFile(options.srcPath)) {
            const completions = this.builder.program.getCompletions(options.srcPath, options.position);
            const result = CompletionList.create(completions);
            result.itemDefaults = {
                commitCharacters: ['.']
            };
            return result;
        }
        return undefined;
    }

    /**
     * Manages the BrighterScript program. The main interface into the compiler/validator
     */
    private builder: ProgramBuilder;

    /**
     * The path to where the project resides
     */
    public projectPath: string;

    /**
     * A unique number for this project, generated during this current language server session. Mostly used so we can identify which project is doing logging
     */
    public projectNumber: number;

    /**
     * A unique name for this project used in logs to help keep track of everything
     */
    public projectIdentifier: string;

    /**
     * The path to the workspace where this project resides. A workspace can have multiple projects (by adding a bsconfig.json to each folder).
     * Defaults to `.projectPath` if not set
     */
    public workspaceFolder: string;

    /**
     * Path to a bsconfig.json file that will be used for this project
     */
    public bsconfigPath?: string;

    /**
     * The contents of the bsconfig.json file. This is used to detect when the bsconfig file has not actually been changed (even if the fs says it did).
     *
     * Only available after `.activate()` has completed.
     * @deprecated do not depend on this property. This will certainly be removed in a future release
     */
    public bsconfigFileContents?: string;

    /**
     * Find the path to the bsconfig.json file for this project
     * @returns path to bsconfig.json, or undefined if unable to find it
     */
    private async getConfigFilePath(config: { configFilePath?: string; projectPath: string }) {
        let configFilePath: string;
        //if there's a setting, we need to find the file or show error if it can't be found
        if (config?.configFilePath) {
            configFilePath = path.resolve(config.projectPath, config.configFilePath);
            if (await util.pathExists(configFilePath)) {
                return util.standardizePath(configFilePath);
            } else {
                this.emit('critical-failure', {
                    message: `Cannot find config file specified in user or workspace settings at '${configFilePath}'`
                });
            }
        }

        //the rest of these require a projectPath, so return early if we don't have one
        if (!config?.projectPath) {
            return undefined;
        }

        //default to config file path found in the root of the workspace
        configFilePath = s`${config.projectPath}/bsconfig.json`;
        if (await util.pathExists(configFilePath)) {
            return util.standardizePath(configFilePath);
        }

        //look for the deprecated `brsconfig.json` file
        configFilePath = s`${config.projectPath}/brsconfig.json`;
        if (await util.pathExists(configFilePath)) {
            return util.standardizePath(configFilePath);
        }

        //no config file could be found
        return undefined;
    }

    public on(eventName: 'validate-begin', handler: (data: any) => MaybePromise<void>);
    public on(eventName: 'validate-end', handler: (data: any) => MaybePromise<void>);
    public on(eventName: 'critical-failure', handler: (data: { message: string }) => MaybePromise<void>);
    public on(eventName: 'diagnostics', handler: (data: { diagnostics: LspDiagnostic[] }) => MaybePromise<void>);
    public on(eventName: 'all', handler: (eventName: string, data: any) => MaybePromise<void>);
    public on(eventName: string, handler: (...args: any[]) => MaybePromise<void>) {
        this.emitter.on(eventName, handler as any);
        return () => {
            this.emitter.removeListener(eventName, handler as any);
        };
    }

    private emit(eventName: 'validate-begin', data: any);
    private emit(eventName: 'validate-end', data: any);
    private emit(eventName: 'critical-failure', data: { message: string });
    private emit(eventName: 'diagnostics', data: { diagnostics: LspDiagnostic[] });
    private async emit(eventName: string, data?) {
        //emit these events on next tick, otherwise they will be processed immediately which could cause issues
        await util.sleep(0);
        this.emitter.emit(eventName, data);
        //emit the 'all' event
        this.emitter.emit('all', eventName, data);
    }
    private emitter = new EventEmitter();

    public disposables: LspProject['disposables'] = [];

    public dispose() {
        for (let disposable of this.disposables ?? []) {
            disposable?.dispose?.();
        }
        this.disposables = [];

        this.emitter?.removeAllListeners();
        if (this.activationDeferred?.isCompleted === false) {
            this.activationDeferred.reject(
                new Error('Project was disposed, activation has been cancelled')
            );
        }
    }
}

rokucommunity / brighterscript / #13316

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