v0.4.9

v0.4.9 2022-12-21

Added

• Group.create_soft_link(target: string, name: string): number; // creates a soft link in a group with name: name (target must be absolute path)
• Group.create_hard_link(target:string, name: string): number; //
• Group.create_external_link(file_name: string, target: string, name: string): number;

All of these return non-zero values on error. To create links with absolute path, just use e.g. File.create_soft_link(target_path, link_path);

v0.4.8

v0.4.8 2022-12-05

Added

• IIFE build at ./dist/iife/h5wasm.js, to support use in Firefox workers (which don't currently support ESM)
• WORKERFS support in ESM/IIFE builds, for loading local files with random access instead of copying whole file into memory

v0.4.7

v0.4.7 2022-11-01

Added

• basic support for reading datatypes from files (see PR #34)
• basic filter information made available (see PR #35)

v0.4.6

v0.4.6 2022-08-04

Changed

• removed Dataset.auto_refresh and replaced with .refresh() method (allows consistent access to metadata and data between refreshes)

v0.4.5

v0.4.5 2022-08-04

Fixed

• H5Create should only be called with access modes H5F_ACC_TRUNC (w) and H5F_ACC_EXCL (x)

Added

• support for SWMR read with refresh on a dataset: e.g.

const file = new hdf5.File("swmr.h5", "Sr");
let ds=file.get("data");
ds.auto_refresh=true;
ds.shape;
// returns 12
ds.shape;
// returns 16 because dataset was updated with SWMR write
ds.value
// has size=16

v0.4.4

v0.4.4 2022-05-25

Fixed

• error in isIterable when called on non-object (affects to_array method)

v0.4.3

v0.4.3 2022-05-24

Added

• to_array method on Dataset and Attribute classes: returns nested array of values with dimensions matching shape. Auto-converts all values to JSON-compatible types (BigInt -> Number, TypedArray -> Array)
• auto-convert h5py-style boolean datasets (where datatype = ENUM {FALSE:0, TRUE:1}) to JS booleans
• automated testing of code with Github Action

Fixed

• enum_type.members is now an object {[name: string]: value: number}
  (previous implementation with Array could have wrong name order)

v0.4.2

v0.4.2 2022-05-10

Added

• extended metadata for ENUM type (including names of members)

Fixed

• Typings for metadata on attributes and datasets

v0.4.1

v0.4.1 2022-05-02

Added

• Minimal handling of reading datatype H5T_ENUM (treats as integer base type)

Fixed

• All strings now truncated at first null byte before decoding
• Fixed memory leaks from opening dtype and plist objects
• Singleton values (shape = []) were being returned as length-1 array due to logic error, now fixed

v0.4.0

v0.4.0 2022-04-28

Changed

• POSSIBLY BREAKING: nodejs target is compiled as ESM instead of CommonJs
• default export is now an object, which can help when import * is discouraged

  export const h5wasm = {
    File,
    Group,
    Dataset,
    ready,
    ACCESS_MODES
  }
  export default h5wasm;

• ready export now returns Promise<H5Module>
• recommended access to filesystem is by

  const { FS } = await h5wasm.ready;

Added

• VLEN string writing and reading test
• TypeScript types added for Attribute
• Full metadata added to Attribute in addition to dtype and shape