import { PluginVSCodeEnvironment } from '../common/plugin-vscode-environment';
import { PluginIdentifiers } from '@theia/plugin-ext/lib/common/plugin-protocol';
/**
 * Extracts extension identity from a VSIX file by reading its package.json.
 *
 * VSIX files are ZIP archives with the extension content in an `extension/` subdirectory.
 * This function extracts only the `extension/package.json` file to read the extension metadata.
 *
 * @param vsixPath Path to the VSIX file
 * @returns PluginIdentifiers.Components (publisher?, name, version), or undefined if the package.json cannot be read or is invalid
 */
export declare function extractExtensionIdentityFromVsix(vsixPath: string): Promise<PluginIdentifiers.Components | undefined>;
export declare function decompressExtension(sourcePath: string, destPath: string): Promise<boolean>;
export declare function existsInDeploymentDir(env: PluginVSCodeEnvironment, extensionId: string): Promise<boolean>;
export declare const TMP_DIR_PREFIX = "tmp-vscode-unpacked-";
export declare function unpackToDeploymentDir(env: PluginVSCodeEnvironment, sourcePath: string, extensionId: string): Promise<string>;
export declare function getExtensionDeploymentDir(env: PluginVSCodeEnvironment, extensionId: string): Promise<string>;
export declare function getTempDir(env: PluginVSCodeEnvironment, prefix: string): Promise<string>;
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