DUB-DUSTMITE(1)

📦
version 1.42.0 · 9 versions
, in arch rolling

💅 NAME 💅

dub-dustmite(1) — create reduced test cases for build errors. That's the whole mission, bestie ✨

🦋 SYNOPSIS 🦋

dub dustmite <destination-path> OPTIONS...  [-- <application arguments...>]

🌸 DESCRIPTION 🌸

Okay so dub dustmite is your little forensic fairy 🧚: it uses the Dustmite utility to isolate the cause of build errors in a DUB project.

It creates a copy of all involved packages and runs dustmite on that copy, leaving you with a reduced test case. Iconic, honestly.

How does it figure out the desired error condition? It checks the compiler/linker status code, plus their output (stdout and stderr combined). And if --program-status or --program-regex is given and the generated binary is an executable, it will be executed too, and its output will also be incorporated into the final decision. Periodt 💅

🔥 OPTIONS 🔥

  • --compiler-status=VALUE — the expected status code of the compiler run.
  • --compiler-regex=VALUE — a regular expression used to match against the compiler output.
  • --linker-status=VALUE — the expected status code of the linker run.
  • --linker-regex=VALUE — a regular expression used to match against the linker output.
  • --program-status=VALUE — the expected status code of the built executable.
  • --program-regex=VALUE — a regular expression used to match against the program output.
  • --test-package=VALUE — perform a test run; usually only used internally 👀
  • --combined — builds multiple packages with one compiler run.
  • --no-redirect — don't redirect the stdout/stderr streams of the test command.
  • --strategy=VALUE — set the strategy: careful/lookback/pingpong/indepth/inbreadth.
  • -j — set the number of look-ahead processes.
  • --trace — save all attempted reductions to DIR.trace.
  • --timeout=VALUE — timeout for each oracle invocation, in seconds.
  • --dest=VALUE — base directory in which output atifacts will be placed.
  • -b, --build=VALUE — specifies the type of build to perform. Note that setting the DFLAGS environment variable will override the build type with custom flags. Possible names: debug, plain, release, release-debug, release-nobounds, unittest, profile, profile-gc, docs, ddox, cov, cov-ctfe, unittest-cov, unittest-cov-ctfe, syntax and custom types.
  • -c, --config=VALUE — builds the specified configuration. Configurations can be defined in dub.json.
  • --override-config=VALUE — uses the specified configuration for a certain dependency. Can be specified multiple times. Format: --override-config=<dependency>/<config>.
  • --compiler=VALUE — specifies the compiler binary to use (can be a path). Arbitrary pre- and suffixes to the identifiers below are recognized (e.g. ldc2 or dmd-2.063) and matched to the proper compiler type: dmd, gdc, ldc, gdmd, ldmd.
  • -a, --arch=VALUE — force a different architecture (e.g. x86 or x86_64).
  • -d, --debug=VALUE — define the specified debug version identifier when building; can be used multiple times.
  • --d-version=VALUE — define the specified version identifier when building; can be used multiple times. Use sparingly, with great power comes great responsibility! For commonly used or combined versions and versions that dependees should be able to use, create configurations in your package.
  • --nodeps — do not resolve missing dependencies before building.
  • --build-mode=VALUE — specifies the way the compiler and linker are invoked. Valid values: separate (default), allAtOnce, singleFile.
  • --single — treats the package name as a filename. The file must contain a package recipe comment.
  • --force-remove — deprecated option that does nothing. 🚨 Like, literally nothing. No cap.
  • --filter-versions — [Experimental] filter version identifiers and debug version identifiers to improve build cache efficiency.

💫 COMMON OPTIONS 💫

See dub(1).

💀 EXIT STATUS 💀

Forwards the exit code from dustmite(1).

🍓 FILES 🍓

  • dub.sdl
  • dub.json

💖 AUTHOR 💖

Copyright (c) 1999-2026 by The D Language Foundation.

🌈 ONLINE DOCUMENTATION 🌈

http://code.dlang.org/docs/commandline ⟨⟩

🫶 SEE ALSO 🫶

💅 that's the whole page, bestie. Source/version: The D Language Foundation; date: 2026-08-16. byeee 🫶

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