web/src/shims-fs.d.ts

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export interface FileSystemGetFileOptions {
create?: boolean;
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}
interface FileSystemCreateWritableOptions {
keepExistingData?: boolean;
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}
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interface FileSystemRemoveOptions {
recursive?: boolean;
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}
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interface FileSystemFileHandle {
getFile(): Promise<File>;
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createWritable(options?: FileSystemCreateWritableOptions): Promise<FileSystemWritableFileStream>;
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}
enum WriteCommandType {
write = 'write',
seek = 'seek',
truncate = 'truncate',
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}
interface WriteParams {
type: WriteCommandType;
size?: number;
position?: number;
data: BufferSource | Blob | string;
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}
type FileSystemWriteChunkType = BufferSource | Blob | string | WriteParams;
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interface FileSystemWritableFileStream extends WritableStream {
write(data: FileSystemWriteChunkType): Promise<undefined>;
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seek(position: number): Promise<undefined>;
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truncate(size: number): Promise<undefined>;
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close(): Promise<undefined>; // should be implemented in WritableStream
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}
export declare interface FileSystemDirectoryHandle {
getFileHandle(name: string, options?: FileSystemGetFileOptions): Promise<FileSystemFileHandle>;
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removeEntry(name: string, options?: FileSystemRemoveOptions): Promise<undefined>;
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}
declare global {
interface Window {
showDirectoryPicker?(): Promise<FileSystemDirectoryHandle>;
}
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}