uutils/coreutils 0.8.0

on GitHub

Rust Coreutils 0.8.0 Release:

We are excited to announce the release of Rust Coreutils 0.8.0 — a major release featuring significant performance gains across core utilities, expanded WebAssembly (WASI) support with a brand-new online playground, and continued hardening against edge-case panics, /dev/full aborts and start of a large-scale migration from nix to rustix** for lower-level syscall safety!

GNU Test Suite Compatibility:

Highlights:

• GNU Compatibility & Upstream Collaboration

  • 630 passing GNU tests, with 2 fewer failures than 0.7.0
  • Continued contributing tests and bug reports upstream to GNU coreutils, strengthening both projects
  • Our compatibility work regularly uncovers edge cases in GNU itself, leading to fixes on both sides

• nix → rustix Migration

  • Replaced nix crate with rustix across cat, df, wc, tty, tsort, tail, touch, date, mkdir, and uucore
  • Reduced range of unsafe code in hostname, logname, who, and nice
  • uucore: uses rustix for splice(), restricted to Linux

• Performance Improvements

  • uucore: Share fluent resources between threads — dd perf +45%
  • uucore: Call rt_sigaction once instead of 62 times — faster startup
  • ls: Replace recursion with iterative depth-first search; remove many unnecessary allocations
  • sort: Performance improvements across sorting paths
  • wc: Improved -c performance with unextended pipe input (Linux)
  • cat: Avoid unnecessary pipe() when stdout is already a pipe; don't lock stdout before splice()
  • dd: Avoid zero-filling buffer at read_and_discard
  • tee: Increased buffer size for large input; removed Box and dyn overhead
  • numfmt: Protect name from argv[0] — +3% perf
  • pr: Avoid String conversion when storing lines to print
  • true/false/echo: Avoid uu_app().render_version() for smaller binary

• WebAssembly (WASI) Support & Online Playground

  • New: Online Playground — try Rust Coreutils directly in your browser, powered by WebAssembly (blog post)
  • Added WASI support for 70+ utilities including ls, head, cat, cp, mv, sort, tail, and many more
  • Embedded all locales in the WASI binary
  • Added WASI platform stubs for FileInformation and IO module in uucore
  • Single-threaded sort path for WASI; disabled rayon on WASI

• Platform Support

  • NetBSD: Multiple fixes, stdbuf support, expanded CI coverage
  • pathchk: Now builds for Windows
  • wc: Cross-platform building and 32-bit support
  • stdbuf: Fixed Cygwin cfg block; detect unsupported target at build time
  • uucore(fs): Made display_permissions_unix cross-platform
  • uucore: Support realtime signals (RTMIN/RTMAX) in signal_by_name_or_value
  • uucore: Permit D as decimal suffix modifier for GNU compatibility

• Documentation & Manpages

  • Manpages now include TL;DR examples, links to the source code, and open bugs — see for example ls
  • Manpages are available in multiple languages including French and Spanish, refreshed daily
  • Added manpage linting in CI to catch formatting issues early
  • TL;DR attribution and disclaimer are now translatable

• Contributions: This release was made possible by 13 new contributors joining our community

Call to Action:

Try it in your browser — Online Playground powered by WebAssembly
Help us translate — Contribute to Rust Coreutils on Weblate or TL;DR pages
Sponsor us on GitHub to accelerate development: github.com/sponsors/uutils

What's Changed

cat

• cat: Drop a clone() and use clap's default value by @oech3 in #11298
• cat: replace nix with rustix by @oech3 in #11567
• cat: avoid pipe() if stdout is pipe, extend pipe by @oech3 in #11551
• cat: add bench for large size for splice by @oech3 in #11587
• cat: add WASI stub for is_unsafe_overwrite and add to feat_wasm by @sylvestre in #11573
• cat: fallback with pipe() failure by @oech3 in #11635
• cat: don't lock stdout before splice() by @oech3 in #11643
• cat: simplify splice & fix comment by @oech3 in #11627
• cat: add bench by @oech3 in #11525
• cat: remove some unnecessary to_owned() calls by @cakebaker in #11676

chown

• chown(ref): parse_uid flattened syntax by @hlsxx in #11351
• chown: warn when '.' is used as owner:group separator by @eyupcanakman in #11438

cksum

• cksum family: #[allow(clippy::unwrap_used)] by @oech3 in #11307
• cksum: add length support for shake128 and shake256 validation by @AldanTanneo in #11320
• cksum: Bring back blake3 algorithm by @RenjiSann in #11316
• cksum: rework blake length validation, add tests by @RenjiSann in #11437
• cksum: Match GNU behavior for digest length errors in --check mode by @RenjiSann in #11499
• *sum: protect names against argv[0] by @oech3 in #11375

coreutils

• coreutils: --help >/dev/full panics by @oech3 in #11444
• coreutils: --list arg and no args should fail by @oech3 in #11385
• coreutils: Protect against env -a for security by @oech3 in #10773
• coreutils: strip errno by @oech3 in #11484
• yes, coreutils: backport(enable) 2 GnuTests by @oech3 in #11480

cp

• clippy(cp): fix collapsible_if lint by @mattsu2020 in #11288
• fix(cp): always create dest dirs with owner write bit before fixing permissions by @baa-ableton in #11318
• wasm: add support for cp & mv by @sylvestre in #11572

cut

• cut: Drop a clone() and use clap's default value by @oech3 in #11310
• cut: improve some error messages by @cakebaker in #11338
• cut: reject literal '' delimiter special-casing by @can1357 in #11399
• cut: honor only-delimited in newline-delimiter mode by @can1357 in #11394
• cut: use ? instead of match by @cakebaker in #11461

date

• date: replace nix by rustix by @oech3 in #11646
• date: fix "unused variable" warning by @cakebaker in #11637
• date: fix date +%9223372036854775807c panic by @mattsu2020 in #11046
• date: fix %#P case-swap on lowercase am/pm by @vishakha1411 in #11671
• date: honor narrow width on wide default strftime fields by @vishakha1411 in #11670
• date: apply locale-aware localization before GNU modifier processing by @sylvestre in #11661
• date: add ignored tests for GNU compatibility gaps found by fuzz_date by @sylvestre in #11665

dd

• dd: fix ISO-8859-1 case conversion for conv=lcase/ucase by @sylvestre in #10830
• dd: catch OOM by @oech3 in #11562
• dd: avoid 0-filling buf at read_and_discard by @oech3 in #11583
• dd: do not show zero multiplier warning when zero is the multiplicand by @iburaky2 in #11673

df

• df: replace unsafe libc sync with nix crate by @mattsu2020 in #11279
• df: replace nix by rustix by @oech3 in #11576

env

• env: fix --version and protect against argv[0] by @oech3 in #11370
• env: Disallow ALL in --{ignore,default,block}-signal by @aweinstock314 in #11218

expand

• clippy(expand): fix collapsible_if lint by @xtqqczze in #11286

expr

• expr: fix eager evaluation of parenthesized dead branches by @can1357 in #11395

factor

• factor: fix crash on malformed input by @Alonely0 in #11190
• factor: deduplicate code, refactor & optimize parsing by @Alonely0 in #11292

head

• head: reset stale partial line state on reused buffers by @can1357 in #11407
• head: fix error message when input is a directory by @aguimaraes in #11541
• head: split head.rs by @oech3 in #11679
• feat_wasm: add head to the WASM-compatible utilities by @sylvestre in #11570

install

• install: refactor conditional expression by @xtqqczze in #11280
• install: rename unprivileged property by @cakebaker in #11283
• clippy(install): fix collapsible_if lint by @xtqqczze in #11285
• install: improve help texts by @cakebaker in #11290

ln

• ln: Avoid dereferencing target if --no-dereference is passed by @aweinstock314 in #11253
• ln: Restore backup to destination if linking fails by @aweinstock314 in #11355
• ln: simplify the code by @sylvestre in #11390

ls

• ls: replace recursion with depth-first search by @Alonely0 in #11386
• ls: remove many unnecessary allocations by @Alonely0 in #11447
• chore(ls): refactor codebase into new files by @Alonely0 in #11429
• ls: add header to new files by @cakebaker in #11442
• ls: Fix error message for ls file/missing-file by @oech3 in #11333
• ls: fall back to "." metadata for ".." on WASI by @sylvestre in #11633
• ls,dir,vdir: protect names against argv[0] by @oech3 in #11371
• simplify the ls code by @sylvestre in #11391

mkdir

• mkdir: replace libc and unsafe by rustix by @oech3 in #11647

nice

• nice: Remove unsafe and reduce bin size by @oech3 in #11489

numfmt

• numfmt: protect name from argv[0], perf +3% by @oech3 in #11379
• numfmt: move duplicate code to function by @cakebaker in #11381
• numfmt: implement the last changes by @sylvestre in #11411
• numfmt: preserve fractional digits when --from-unit is used without suffix by @Eshwar1440 in #11674
• numfmt: add failing test cases by @sylvestre in #11668
• numfmt & others: Dedup some code by @sylvestre in #11645

od

• od: default -t f to double precision by @can1357 in #11396

pr

• pr: don't convert to String when storing lines to print by @venoosoo in #11327

sort

• sort: fix infinite loop on --files0-from read error by @vitkyrka in #11504
• sort: fix warnings about unused stuff on Redox by @cakebaker in #11547
• Sort: improve some of the performances by @sylvestre in #11412
• sort: add locale-aware month sorting (-M) by @sylvestre in #11445
• sort: disable rayon on wasi by @sylvestre in #11595
• sort: add WASI single-threaded sort path & run most of the tests by @sylvestre in #11624
• docs(sort): fix random number generation example by @xtqqczze in #11295

split

• split: preserve non-UTF-8 bytes in output filename generation by @can1357 in #11397

stdbuf

• stdbuf: detect unsupported target at build time by @oech3 in #11476
• stdbuf: Fix cfg block for Cygwin by @oech3 in #11311
• stdbuf: remove clippy::unnecessary_wraps by @oech3 in #11545
• stdbuf: use .with_capacity for Vec storing searched paths by @oech3 in #11546
• Fix stdbuf on NetBSD by @0323pin in #11428
• libstdbuf: remove eprintln! causing 2>/dev/full abort by @oech3 in #11213
• uu_stdbuf_libstdbuf: add LICENSE by @michel-slm in #11417

stty

• stty: Fix incorrect ppc64el type presumption by @BAMF0 in #11284

sync

• sync: fix exit code when fcntl failed & 2>/dev/full abort by @oech3 in #11508
• sync: fall back to full sync when --file-system has no operands by @can1357 in #11393

tail

• tail: increase retry delay and sleep interval for flaky test by @mattsu2020 in #11278
• tail: replace nix by rustix by @oech3 in #11606
• tail: add WASI support by disabling notify and pid features by @sylvestre in #11569

tee

• tee: remove Box and dyn by @oech3 in #11578
• tee: increase buf size for large input by @oech3 in #11441
• tee: fix < . message and strip errno by @oech3 in #11483
• tee: simplify by clap by @oech3 in #11582
• tee: reduce if block by @oech3 in #11472
• tee: split cli part of tee.rs by @oech3 in #11640

timeout

• timeout: return timed-out status after kill grace period by @can1357 in #11392
• feat(timeout): add benchmarking support with divan by @mattsu2020 in #9733

touch

• touch: replace nix by rustix by @oech3 in #11648

tr

• tr: reject unknown character classes during sequence parsing by @can1357 in #11398
• tr: fix graph/print character class mapping by @can1357 in #11405

true/false

• true, false, echo: avoid uu_app().render_version() for smaller binary by @oech3 in #11362

tsort

• tsort: replace nix by rustix by @oech3 in #11598

tty

• tty: replace nix by rustix by @oech3 in #11589

wc

• wc: replace File::from_raw_fd with nix::sys::stat by @mattsu2020 in #11248
• wc: replace nix by rustix by @oech3 in #11575
• wc: improve wc -c perf with unextended pipe input (Linux only) by @oech3 in #11591
• wc: support cross-platform building and 32-bit by @YumeYuka in #11452
• wc: add bench for small file by @oech3 in #11526
• wc: drop #[allow(clippy::question_mark)] by @oech3 in #11638

yes

• yes: Refactor by clap's default value by @oech3 in #11296
• yes: dedup some logic by @oech3 in #11536
• yes: drop unused feat deps by @oech3 in #11518

uucore

• uucore: tr, nice -n . 2>/dev/full does not abort by @oech3 in #10762
• uucore: share a fluent resource between threads - dd perf + 45% by @oech3 in #11220
• uucore: Permit 'D' as a decimal suffix modifier in size parsing for GNU compatibility by @aweinstock314 in #11354
• uucore: use rustix'splice & restrict to Linux by @oech3 in #11566
• uucore: add WASI support for FileInformation and io module by @sylvestre in #11568
• uucore: pipes.rs replace != with > by @oech3 in #11629
• uucore: add a function returning /dev/null to use splice() for wc,dd,tail by @oech3 in #11601
• uucore: add missing feature of rustix by @oech3 in #11632
• uucore: support realtime signals (RTMIN/RTMAX) in signal_by_name_or_value by @kevinburkesegment in #11425
• uucore(fs): make display_permissions_unix cross-platform by @kaladron in #11538
• uucore: drop an unused function by @oech3 in #11460
• perf(uucore): call rt_sigaction once not 62 times by @danielzgtg in #11350
• utmpx.rs: Remove duplicated const by @oech3 in #11323

uudoc

• uudoc: make tldr attribution and disclaimer translatable by @sylvestre in #11450
• uudoc: drop legacy FA4 fa class from platform icons by @sylvestre in #11641
• Improve the manpages & lint them in github by @sylvestre in #11339

CI & Build

• CICD.yml: split jobs for make by @oech3 in #11269
• make.yml: Replace wrong *.yml ref by @oech3 in #11281
• make.yml: Switch to stable from MSRV by @oech3 in #11273
• CICD: Partial check for NetBSD by @oech3 in #11334
• CICD: Check more NetBSD progs by @oech3 in #11408
• CICD.yml: Bump cross for NetBSD by @oech3 in #11496
• l10n.yml: Simplify by @oech3 in #11335
• l10n.yml: drop cargo build covered by cargo {test,run} by @oech3 in #11349
• dedup env: CARGO_INCREMENTAL: 0 by @oech3 in #11360
• run-gnu-tests-smack-ci.sh: copy kernel from Ubuntu runner by @oech3 in #11376
• run-gnu-tests-smack-ci.sh: Use alpine busybox by @oech3 in #11431
• delay=1000 at test_tail::test_follow_name_multiple at non-linux by @oech3 in #11257
• CI: add GNU tests/rm/isatty to intermittent by @Alonely0 in #11486
• GNUmakefile: Do not depend on system tr for Gentoo by @oech3 in #11345
• GNUmakefile: Fix LN for cygwin by @oech3 in #11440
• pathchk: build for Windows by @oech3 in #11495
• github action: Move the clippy management in python + run it on wasm code too by @sylvestre in #11596
• tests: ensure getlimits is on PATH for reused GNU builds by @sylvestre in #11561
• pre-commit: add Cargo.lock sync check by @sylvestre in #11540
• pre-commit: exclude tests/fixtures from all hooks by @sylvestre in #11558
• pre-commit: update cargo-lock-check to suggest changes by @xtqqczze in #11622
• adjust the publish script to ship src/uu/checksum_common by @sylvestre in #11263
• NetBSD fixes by @0323pin in #11388
• Allow feat_os_unix on NetBSD by @0323pin in #11470
• wasm: make ls pass and prepare more work by @sylvestre in #11563
• wasm: add 21 more utilities to feat_wasm and add WASI platform stubs by @sylvestre in #11574
• wasi: embedded all the locales + add the support in the binary by @sylvestre in #11631

Documentation

• docs(sort): fix random number generation example by @xtqqczze in #11295
• docs(performance): Use gnuls where ls is uutils by @danielzgtg in #11342
• ls,pr: wrap angle-bracket placeholders in backticks to fix mdbook HTML warnings by @sylvestre in #11520
• CONTRIBUTING.md: drop outdated hint, add policies and links by @oech3 in #11433
• arch, uname, Cargo.toml: update outdated info by @oech3 in #11556
• fr-FR: fix anglicisms (supporté→pris en charge, drapeau→option, removed→supprimé) by @sylvestre in #11651
• Remove useless translations by @sylvestre in #11652

Code Quality & Cleanup

• use var_os in a few places by @xtqqczze in #11242
• refactor: replace manual last()+pop() patterns with Vec::pop_if by @mattsu2020 in #11272
• Cargo.toml: dedup feat_require_unix_hostid dep by @oech3 in #11347
• Remove duplicated features by @oech3 in #11510
• hostid: reduce lines by @oech3 in #11502
• logname: reduce range of unsafe block by @oech3 in #11506
• hostname: reduce range of unsafe by @oech3 in #11515
• who: reduce range of unsafe by @oech3 in #11521
• nohup: #[allow(clippy::unwrap_used, reason = ...)] by @oech3 in #11361
• nohup: use LazyLock for FAILURE_CODE by @xtqqczze in #11524
• refactor(base32): use filter_map by @xtqqczze in #11463
• baseNM: protect names against argv[0] by @oech3 in #11373
• protect names against binary name by @oech3 in #11378
• fix(deps): refactor icu_ package configuration by @xtqqczze in #11374
• fix(deps): refactor crc-fast package configuration by @xtqqczze in #11372
• gate uucore::pipes::pipe to test by @oech3 in #11649
• uutests: add LICENSE by @michel-slm in #11356
• uu_stdbuf_libstdbuf: add LICENSE by @michel-slm in #11417

Version Management

• Revert "Cargo.toml: Avoid huge diff generation at version bump" by @sylvestre in #11259
• prepare release 0.8.0 by @sylvestre in #11449

Dependency Updates

• chore(deps): update actions/upload-artifact action to v7 by @renovate[bot] in #11275
• chore(deps): update dawidd6/action-download-artifact action to v16 by @renovate[bot] in #11277
• chore(deps): update rust crate tempfile to v3.27.0 by @renovate[bot] in #11289
• chore(deps): update reactivecircus/android-emulator-runner action to v2.36.0 by @renovate[bot] in #11293
• chore(deps): update rand and related crates to version 0.10 by @xtqqczze in #11172
• chore(deps): update dawidd6/action-download-artifact action to v17 by @renovate[bot] in #11300
• chore(deps): update rust crate nix to 0.31.2 by @xtqqczze in #11301
• chore(deps): update rust crate bitflags to 2.11.0 by @xtqqczze in #11303
• chore(deps): update rust crate getrandom to 0.4.2 by @xtqqczze in #11304
• chore(deps): update rust crate clap to v4.6.0 by @renovate[bot] in #11305
• chore(deps): update rust crate clap_complete to v4.6.0 by @renovate[bot] in #11306
• chore(deps): update rust crate clap_mangen to v0.2.33 by @renovate[bot] in #11308
• chore(deps): update rust crate console to v0.16.3 by @renovate[bot] in #11319
• chore(deps): update dawidd6/action-download-artifact action to v18 by @renovate[bot] in #11322
• chore(deps): update reactivecircus/android-emulator-runner action to v2.37.0 by @renovate[bot] in #11324
• chore(deps): update rust crate console to v0.16.3 by @xtqqczze in #11331
• chore(deps): update rust crate pretty_assertions to v1.4.1 by @xtqqczze in #11332
• chore(deps): update nick-fields/retry action to v4 by @renovate[bot] in #11426
• chore(deps): update rust crate zip to v8.3.0 by @renovate[bot] in #11418
• chore(deps): update rust crate itoa to v1.0.18 by @renovate[bot] in #11424
• chore(deps): update dawidd6/action-download-artifact action to v19 by @renovate[bot] in #11382
• chore(deps): update rust crate zip to v8.3.1 by @renovate[bot] in #11446
• chore(deps): update endbug/add-and-commit action to v10 by @renovate[bot] in #11459
• chore(deps): update rust crate zip to v8.4.0 by @renovate[bot] in #11462
• chore(deps): update rust crate terminal_size to v0.4.4 by @renovate[bot] in #11468
• chore(deps): update davidanson/markdownlint-cli2-action action to v23 by @renovate[bot] in #11501
• chore(deps): update codecov/codecov-action action to v6 by @renovate[bot] in #11509
• chore(deps): update rust crate clap_mangen to 0.3 by @renovate[bot] in #11527
• chore(deps): update rust crate uutils_term_grid to 0.8 by @renovate[bot] in #11267
• chore(deps): update rust crate rustc-hash to v2.1.2 by @renovate[bot] in #11533
• chore(deps): update rust crate ctor to 0.8.0 by @renovate[bot] in #11528
• Bump sm3 & add crates to skip list by @cakebaker in #11535
• Bump icu_* crates from 2.1.1 to 2.2.0 & fix deprecation warnings by @cakebaker in #11590
• chore(deps): update rust crate blake3 to v1.8.4 by @renovate[bot] in #11550
• chore(deps): update rust crate platform-info to v2.1.0 by @renovate[bot] in #11552
• chore(deps): update rust crate zip to v8.5.0 by @renovate[bot] in #11586
• chore(deps): update rust crate icu_provider to v2.2.0 by @renovate[bot] in #11585
• fix(deps): update rust crate similar to v3 by @renovate[bot] in #11588
• chore(deps): update rust crate icu_calendar to v2.2.1 by @renovate[bot] in #11600
• chore(deps): update dawidd6/action-download-artifact action to v20 by @renovate[bot] in #11608
• chore(deps): update rust crate libredox to 0.1.15 by @xtqqczze in #11625

New Contributors

• @BAMF0 made their first contribution in #11284
• @AldanTanneo made their first contribution in #11320
• @danielzgtg made their first contribution in #11342
• @venoosoo made their first contribution in #11327
• @baa-ableton made their first contribution in #11318
• @can1357 made their first contribution in #11399
• @vitkyrka made their first contribution in #11504
• @kaladron made their first contribution in #11538
• @eyupcanakman made their first contribution in #11438
• @kevinburkesegment made their first contribution in #11425
• @YumeYuka made their first contribution in #11452
• @vishakha1411 made their first contribution in #11671
• @Eshwar1440 made their first contribution in #11674

Full Changelog: 0.7.0...0.8.0