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Changelog

v0.9.1

  • New: releases now ship a SHA256SUMS file, so downloads can be verified.
  • Adding files to a Fallout 1 archive is much faster, increasingly so on larger archives.
  • Fixed: extracting a Fallout 1 archive could stop partway through with an error. master.dat now extracts completely.
  • Fixed: many Fallout 1 archives could not be opened at all, among them the Fallout 1 demo's.
  • Fixed: a crafted archive could write files outside the output directory on extraction.
  • Fixed: x, e, a and d crashed when their output was piped to a program that exits early, such as head.
  • Fixed: Fallout 1 archives created by dat3 contained an extra empty directory.

v0.9.0

  • New: l --json prints the listing as a JSON array (name, size, packed_size, compressed) instead of aligned columns, for tools that consume dat3's output. Paths always use forward slashes, so the same archive lists identically on every platform.
  • New: releases now ship a static Linux arm64 binary (dat3-arm64) and a WebAssembly build (dat3.wasm), which runs under a WASI runtime such as wasmtime or Node.
  • Breaking: x and e (extract) now fail when a requested file or glob matches nothing in the archive, the way l (list) already did. The missing names are printed and nothing is extracted; previously they were ignored silently and the exit code was 0.

v0.8.0

  • Breaking: the a command's --dat1 flag is replaced by --format dat1|dat2|arcanum (default dat2 for new archives).
  • New: an optional .bgforge.yml in the current directory (dat3.default_format: dat1|dat2|arcanum) sets the default format for newly created archives; --format still wins.
  • New: support for Arcanum (Troika) DAT archives - auto-detected on open for listing, extraction, adding, and deleting; a --format arcanum creates a new Arcanum archive.
  • Fallout 1 (DAT1) archives now extract in parallel like DAT2 ones, roughly 1.5-2x faster on multi-core machines. Per-file Extracting: lines are replaced by DAT2-style progress reporting.
  • Faster DAT2 compression and decompression (new zlib backend): high-compression archive creation is ~17% faster, extraction ~11% faster.
  • Fixed: a DAT2 archive containing only empty files could be created but not reopened ("Invalid directory tree position").
  • Corrupt or truncated archives now produce a clean error instead of crashing (malformed DAT2 footer) or silently extracting truncated data (damaged DAT1 LZSS streams).
  • A crafted size field in an archive can no longer force an outsized upfront memory allocation.
  • Creating an archive whose contents exceed the DAT formats' 4 GiB offset limit is now rejected with an error instead of writing a corrupt file.
  • Saves are now atomic: an interrupted a (add) or d (delete) no longer corrupts or destroys the existing archive.
  • Saving uses far less memory: archives stream to disk instead of being assembled in RAM first (peak usage down ~60-70%, e.g. 1.9 GiB to 0.6 GiB when creating a DAT1 from 600 MB of files), and saves are 10-35% faster.

v0.7.0

  • Add -C/--change-dir flag for a (add) operation: resolves file operands relative to the given directory and rejects any operand that escapes it or is a symlink.
  • a (add) now skips all symlinks encountered during directory recursion (previously followed) and no longer errors on dangling symlinks.
  • a (add) now rejects archive paths containing .. components, empty paths, or absolute-root/drive prefixes; . components are silently normalized away.

v0.6.2

  • Add-path normalization now strips only ./ / .\ prefixes and absolute path roots while preserving the first real directory.
  • Absolute source paths are stored as relative archive entries instead of unsafe or invalid absolute paths.

v0.6.1

  • Path traversal protection: archive entries with .. in their path are now rejected on extraction.

v0.6.0

  • Can use globs in list/delete/extract operations.
  • Paths in error messages are normalized too.
  • No panic on piping output.
  • Debug code cleanup.

v0.5.0

Set sort order to be case-insensitive for windows compatibility.

v0.4.0

Added globbing capability.

v0.3.0

Now only accept ASCII filenames.

v0.2.0

Removed -r flag - directories are now always processed recursively.

v0.1.0

Initial release.