App::Y...nd::do(3pm)

📦
version 1.000172 · 8 versions
, in ubuntu stonking

🦋 NAME 🦋

okay so bestie, this right here is App::Y...nd::do — and she lives in section 3pm of the manual (that's the "User Contributed Perl Documentation" girlies, iykyk 💅).

App::Yath::Command::do — Run tests using run or test, same as the default command, but explicit. no cap, that's the whole vibe.

💖 DESCRIPTION 💖

okay so this is literally the same as running yath without a command, EXCEPT that it will not fail on CLI parsing issues that often get mistaken for commands. that's the entire reason she exists and honestly? she ate. 🎀

If there is a persistent runner then the run command is used, otherwise the test command is used. fr fr, that's the whole decision tree.

🌸 USAGE 🌸

$ yath [YATH OPTIONS] do [COMMAND OPTIONS]

✨ YATH OPTIONS ✨

👑 Developer 👑

  • --dev-lib, --dev-lib=lib, -D, -D=lib, -Dlib, --no-dev-lib — Add paths to @INC before loading ANYTHING. This is what you use if you are developing yath or yath plugins to make sure the yath script finds the local code instead of the installed versions of the same code. You can provide an argument (-Dfoo) to provide a custom path, or you can just use -D without and arg to add lib, blib/lib and blib/arch. Can be specified multiple times 🔁

🌈 Environment 🌈

  • --persist-dir ARG, --persist-dir=ARG, --no-persist-dir — Where to find persistence files.
  • --persist-file ARG, --persist-file=ARG, --pfile ARG, --pfile=ARG, --no-persist-file — Where to find the persistence file. The default is /{system-tempdir}/project-yath-persist.json. If no project is specified then it will fall back to the current directory. If the current directory is not writable it will default to /tmp/yath-persist.json which limits you to one persistent runner on your system.
  • --project ARG, --project=ARG, --project-name ARG, --project-name=ARG, --no-project — This lets you provide a label for your current project/codebase. This is best used in a .yath.rc file. This is necessary for a persistent runner. (like, mandatory bestie, no runner for you without it 💀)

🫶 Help and Debugging 🫶

  • --show-opts, --no-show-opts — Exit after showing what yath thinks your options mean.
  • --version, -V, --no-version — Exit after showing a helpful usage message.

🧚 Plugins 🧚

  • --no-scan-plugins, --no-no-scan-plugins — Normally yath scans for and loads all App::Yath::Plugin::* modules in order to bring in command-line options they may provide. This flag will disable that. This is useful if you have a naughty plugin that is loading other modules when it should not. 🙈
  • --plugins PLUGIN, --plugins +App::Yath::Plugin::PLUGIN, --plugins PLUGIN=arg1,arg2,..., --plugin PLUGIN, --plugin +App::Yath::Plugin::PLUGIN, --plugin PLUGIN=arg1,arg2,..., -pPLUGIN, --no-plugins — Load a yath plugin. Can be specified multiple times 🔁

🎀 COMMAND OPTIONS 🎀

🍓 Cover Options 🍓

  • --cover-aggregator ByTest, --cover-aggregator ByRun, --cover-aggregator +Custom::Aggregator, --cover-agg ByTest, --cover-agg ByRun, --cover-agg +Custom::Aggregator, --no-cover-aggregator — Choose a custom aggregator subclass.
  • --cover-class ARG, --cover-class=ARG, --no-cover-class — Choose a Test2::Plugin::Cover subclass.
  • --cover-dirs ARG, --cover-dirs=ARG, --cover-dir ARG, --cover-dir=ARG, --no-cover-dirs — NO DESCRIPTION - FIX ME 😭 (not me putting a placeholder in, that's literally what the page says bestie) Can be specified multiple times 🔁
  • --cover-exclude-private, --no-cover-exclude-private, --cover-files, --no-cover-files — Use Test2::Plugin::Cover to collect coverage data for what files are touched by what tests. Unlike Devel::Cover this has very little performance impact (About 4% difference). slay.
  • --cover-from path/to/log.jsonl, --cover-from http://example.com/coverage, --cover-from path/to/coverage.jsonl, --no-cover-from — This can be a test log, a coverage dump (old style json or new jsonl format), or a url to any of the previous. Tests will not be run if the file/url is invalid. 🚫
  • --cover-from-type json, --cover-from-type jsonl, --cover-from-type log, --no-cover-from-type — File type for coverage source. Usually it can be detected, but when it cannot be you should specify. "json" is old style single-blob coverage data, "jsonl" is the new by-test style, "log" is a logfile from a previous run.
  • --cover-manager My::Coverage::Manager, --no-cover-manager — Coverage 'from' manager to use when coverage data does not provide one.
  • --cover-maybe-from path/to/log.jsonl, --cover-maybe-from http://example.com/coverage, --cover-maybe-from path/to/coverage.jsonl, --no-cover-maybe-from — This can be a test log, a coverage dump (old style json or new jsonl format), or a url to any of the previous. Tests will keep going even if the coverage file/url is invalid. (the chill version of --cover-from, basically 💖)
  • --cover-maybe-from-type json, --cover-maybe-from-type jsonl, --cover-maybe-from-type log, --no-cover-maybe-from-type — Same as "from_type" but for "maybe_from". Defaults to "from_type" if that is specified, otherwise auto-detect.
  • --cover-metrics, --no-cover-metrics, --cover-types ARG, --cover-types=ARG, --cover-type ARG, --cover-type=ARG, --no-cover-types — NO DESCRIPTION - FIX ME 😭 Can be specified multiple times 🔁
  • --cover-write, --cover-write=coverage.jsonl, --cover-write=coverage.json, --no-cover-write — Create a json or jsonl file of all coverage data seen during the run (This implies --cover-files).

🌿 Git Options 🌿

  • --git-change-base master, --git-change-base HEAD^, --git-change-base df22abe4, --no-git-change-base — Find files changed by all commits in the current branch from most recent, stopping when a commit is found that is also present in the history of the branch/commit specified as the change base.

💜 Help and Debugging 💜

  • --dummy, -d, --no-dummy — Dummy run, do not actually execute anything. (all vibes, zero execution ✨) Can also be set with the following environment variables: "T2_HARNESS_DUMMY"
  • --help, -h, --no-help — exit after showing help information.
  • --interactive, -i, --no-interactive — Use interactive mode, 1 test at a time, stdin forwarded to it.
  • --keep-dirs, --keep_dir, -k, --no-keep-dirs — Do not delete directories when done. This is useful if you want to inspect the directories used for various commands.
  • --procname-prefix ARG, --procname-prefix=ARG, --no-procname-prefix — Add a prefix to all proc names (as seen by ps).

⭐ YathUI Options ⭐

  • --yathui-api-key ARG, --yathui-api-key=ARG, --no-yathui-api-key — Yath-UI API key. This is not necessary if your Yath-UI instance is set to single-user.
  • --yathui-grace, --no-yathui-grace — If yath cannot connect to yath-ui it normally throws an error, use this to make it fail gracefully. You get a warning, but things keep going. 🫶
  • --yathui-long-duration 10, --no-yathui-long-duration — Minimum duration length (seconds) before a test goes from MEDIUM to LONG.
  • --yathui-medium-duration 5, --no-yathui-medium-duration — Minimum duration length (seconds) before a test goes from SHORT to MEDIUM.
  • --yathui-mode summary, --yathui-mode qvf, --yathui-mode qvfd, --yathui-mode complete, --no-yathui-mode — Set the upload mode (default 'qvfd').
  • --yathui-project ARG, --yathui-project=ARG, --no-yathui-project — The Yath-UI project for your test results.
  • --yathui-retry, --no-yathui-retry — How many times to try an operation before giving up. Can be specified multiple times 🔁
  • --yathui-url http://my-yath-ui.com/..., --uri http://my-yath-ui.com/..., --no-yathui-url — Yath-UI url.

🌈 SOURCE 🌈

The source code repository for Test2-Harness can be found at http://github.com/Test-More/Test2-Harness/. go star it bestie ⭐

👑 MAINTAINERS 👑

Chad Granum <exodist@cpan.org>

🎀 AUTHORS 🎀

Chad Granum <exodist@cpan.org>

Copyright 2026 Chad Granum <exodist7@gmail.com>.

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

See http://dev.perl.org/licenses/

okay and that's the whole page, bestie!! 🦋✨ this was perl v5.40.1, dated 2026-05-10, and it's App::Y...nd::do(3pm) — mwah, go run some tests, you got this 💅💜

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