Method readFile

extensions/vscode/src/util/ideUtils.ts:128–151

* Read the entire contents of a file from the given URI. * If there are unsaved changes in an open editor, returns those instead of the file on disk. * * @param uri - The URI of the file to read. * @param ignoreMissingProviders - Optional flag to ignore missing file system providers for

(
    uri: vscode.Uri,
    ignoreMissingProviders: boolean = true,
  )

   * @throws Will rethrow any error that is not related to missing providers or unsupported schemes.
   */
  async readFile(
    uri: vscode.Uri,
    ignoreMissingProviders: boolean = true,
  ): Promise<Uint8Array | null> {
    // First check if there's an open document with this URI that might have unsaved changes.
    const openDocuments = vscode.workspace.textDocuments;
    for (const document of openDocuments) {
      if (document.uri.toString() === uri.toString()) {
        // Found an open document with this URI.
        // Return its current content (including any unsaved changes) as Uint8Array.
        const docText = document.getText();
        return Buffer.from(docText, "utf8");
      }
    }

    // If no open document found or if it's not dirty, fall back to reading from disk.
    return await this.fsOperation(
      uri,
      async (u) => {
        return await vscode.workspace.fs.readFile(u);
      },
      ignoreMissingProviders,
    );
  }

  /**
   * Retrieve metadata about a file from the given URI.