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import { Utils } from 'vscode-uri';
import { IDocumentFactory } from '../document/document-factory.interface';
import { IWorkspaceFileService, WorkspaceFileChangeEvent } from './workspace-file-service.interface';
import { getConfig } from '@src/utilities/vscode/config';
/**
* Service for discovering and watching workspace files that match supported extensions.
* Consolidates file discovery logic to avoid duplicate workspace scans.
*/
export class WorkspaceFileService implements IWorkspaceFileService {
/**
* The included file extensions as glob patterns.
*/
private readonly _includePatterns: string[];
/**
* A list of all discovered files in the workspace.
*/
private _files: vscode.Uri[] = [];
/**
* A file system watcher for the workspace.
*/
private readonly _watcher: vscode.FileSystemWatcher;
/**
* Indicates if file discovery has completed.
*/
private _initialized = false;
/**
* Event emitter for discovery completion.
*/
private readonly _onDidFinishDiscovery = new vscode.EventEmitter<void>();
/**
* Event emitter for file changes.
*/
private readonly _onDidChangeFiles = new vscode.EventEmitter<WorkspaceFileChangeEvent>();
/**
* An event that is fired when file discovery has completed.
*/
readonly onDidFinishDiscovery = this._onDidFinishDiscovery.event;
/**
* An event that is fired when workspace file contents change.
*/
readonly onDidChangeFiles = this._onDidChangeFiles.event;
constructor(
private readonly documentFactory: IDocumentFactory
) {
this._includePatterns = Object.keys(documentFactory.supportedExtensions).map(ext => `**/*${ext}`);
this._watcher = vscode.workspace.createFileSystemWatcher('**/*', false, false, false);
this._watcher.onDidCreate((uri: vscode.Uri) => {
if (!documentFactory.isSupportedFile(uri)) {
return;
}
this._files.push(uri);
this._onDidChangeFiles.fire({
type: vscode.FileChangeType.Created,
uri: Utils.dirname(uri)
});
});
this._watcher.onDidDelete((uri: vscode.Uri) => {
if (!documentFactory.isSupportedFile(uri)) {
return;
}
this._files = this._files.filter(f => f.path !== uri.path);
this._onDidChangeFiles.fire({
type: vscode.FileChangeType.Deleted,
uri: Utils.dirname(uri)
});
});
}
/**
* Get all discovered files in the workspace.
*/
get files(): ReadonlyArray<vscode.Uri> {
return this._files;
}
/**
* Indicates if file discovery has completed.
*/
get initialized(): boolean {
return this._initialized;
}
/**
* Get the include patterns for supported file extensions.
*/
get includePatterns(): ReadonlyArray<string> {
return this._includePatterns;
}
/**
* Discovers all supported files in the workspace.
*/
async discoverFiles(): Promise<void> {
vscode.commands.executeCommand('setContext', 'mentor.workspace.isInitializing', true);
vscode.commands.executeCommand('setContext', 'mentor.workspace.isEmpty', true);
this._files = [];
for (const folder of vscode.workspace.workspaceFolders ?? []) {
const workspaceUri = folder.uri;
const excludePatterns = await this.getExcludePatterns(workspaceUri);
// Get the excluded folders pattern relative to the workspace folder.
const excludedFolders = new vscode.RelativePattern(workspaceUri, '{' + excludePatterns.join(',') + '}');
// Get the included files relative to the workspace folder.
const includedFiles = new vscode.RelativePattern(workspaceUri, '{' + this._includePatterns.join(',') + '}');
// Find all matching files.
const files = await vscode.workspace.findFiles(includedFiles, excludedFolders);
// Filter to ensure only files ending with supported extensions (glob may match mid-path).
const filteredFiles = files.filter(uri => this.documentFactory.isSupportedFile(uri));
this._files.push(...filteredFiles);
}
vscode.commands.executeCommand('setContext', 'mentor.workspace.isEmpty', this._files.length === 0);
vscode.commands.executeCommand('setContext', 'mentor.workspace.isInitializing', false);
this._initialized = true;
this._onDidFinishDiscovery.fire();
}
/**
* Wait for file discovery to complete.
*/
async waitForDiscovery(): Promise<void> {
if (this._initialized) {
return;
}
return new Promise((resolve) => {
const listener = this._onDidFinishDiscovery.event(() => {
listener.dispose();
resolve();
});
});
}
/**
* Generator that yields files matching the given language ID's extensions.
* @param languageId The VS Code language identifier (e.g., 'turtle', 'sparql')
* @returns Generator yielding matching files one by one.
*/
async* getFilesByLanguageId(languageId: string): AsyncGenerator<vscode.Uri, void, unknown> {
const extensions = await this._getExtensionsForLanguageId(languageId);
if (extensions.length === 0) {
return;
}
const extSet = new Set<string>(extensions);
for (const file of this._files) {
const extension = file.path.split('.').pop() || '';
if (extSet.has(extension)) {
yield file;
}
}
}
/**
* Gets file extensions associated with a VS Code language ID.
* @param languageId The language identifier
* @returns Array of file extensions (without dots)
*/
private async _getExtensionsForLanguageId(languageId: string): Promise<string[]> {
const languages = vscode.extensions.all
.flatMap(ext => ext.packageJSON?.contributes?.languages || [])
.filter(lang => lang.id === languageId);
const extensions: string[] = [];
for (const language of languages) {
Eif (language.extensions) {
const langExtensions = language.extensions.map((ext: string) =>
ext.startsWith('.') ? ext.substring(1) : ext
);
extensions.push(...langExtensions);
}
}
return [...new Set(extensions)];
}
/**
* Retrieves the contents of a folder in the workspace.
* @param folderUri The URI of the folder to search in.
* @returns A list of matching files and folders sorted by type and name.
*/
async getFolderContents(folderUri: vscode.Uri): Promise<vscode.Uri[]> {
const files = [];
const folders = [];
const seenFiles = new Set<string>();
const seenFolders = new Set<string>();
const folder = folderUri.toString();
for (const file of this._files) {
if (!file.toString().startsWith(folder)) {
continue;
}
const relativePath = file.toString().substring(folder.length + 1);
if (relativePath.includes('/')) {
const subFolderName = relativePath.substring(0, relativePath.indexOf('/'));
const subFolderUri = vscode.Uri.joinPath(folderUri, subFolderName);
if (!seenFolders.has(subFolderName)) {
folders.push(subFolderUri);
seenFolders.add(subFolderName);
}
} else if (E!seenFiles.has(relativePath)) {
files.push(file);
seenFiles.add(relativePath);
}
}
return [
...folders.sort((a, b) => a.path.localeCompare(b.path)),
...files.sort((a, b) => a.path.localeCompare(b.path))
];
}
/**
* Disposes of resources held by this service.
*/
dispose(): void {
this._watcher.dispose();
this._onDidFinishDiscovery.dispose();
this._onDidChangeFiles.dispose();
}
/**
* Gets the list of patterns to exclude from indexing operations.
* @param workspaceUri The workspace URI to get patterns for.
* @returns An array of glob patterns to exclude.
*/
protected async getExcludePatterns(workspaceUri: vscode.Uri): Promise<string[]> {
const result = new Set<string>();
// Add the patterns from the configuration.
for (const pattern of getConfig().get<string[]>('index.ignoreFolders', [])) {
result.add(pattern);
}
// Add the patterns from the .gitignore file if enabled.
if (getConfig().get<boolean>('index.useGitIgnore')) {
const gitignore = vscode.Uri.joinPath(workspaceUri, '.gitignore');
try {
const content = await vscode.workspace.fs.readFile(gitignore);
const excludePatterns = new TextDecoder().decode(content)
.split('\n')
.filter(line => !line.startsWith('#') && line.trim() !== '');
for (const pattern of excludePatterns) {
result.add(pattern);
}
} catch {
// If the .gitignore file does not exist, ignore it.
}
}
return Array.from(result);
}
}
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