X-Git-Url: https://git.madduck.net/etc/vim.git/blobdiff_plain/d3cc63316b10c3ddc0e6a97a71130f30598ba5ef..14c76e89716b5b53c97ece80bb935ea956b7dd89:/README.md?ds=sidebyside diff --git a/README.md b/README.md index beed8ba..696bfa7 100644 --- a/README.md +++ b/README.md @@ -3,7 +3,6 @@

The Uncompromising Code Formatter

-Build Status Actions Status Actions Status Documentation Status @@ -11,6 +10,7 @@ License: MIT PyPI Downloads +conda-forge Code style: black

@@ -48,8 +48,15 @@ _Contents:_ **[Installation and usage](#installation-and-usage)** | ### Installation -_Black_ can be installed by running `pip install black`. It requires Python 3.6.0+ to -run but you can reformat Python 2 code with it, too. +_Black_ can be installed by running `pip install black`. It requires Python 3.6.2+ to +run. If you want to format Python 2 code as well, install with +`pip install black[python2]`. + +#### Install from GitHub + +If you can't wait for the latest _hotness_ and want to install from GitHub, use: + +`pip install git+git://github.com/psf/black` ### Usage @@ -79,7 +86,7 @@ Options: -l, --line-length INTEGER How many characters per line to allow. [default: 88] - -t, --target-version [py27|py33|py34|py35|py36|py37|py38] + -t, --target-version [py27|py33|py34|py35|py36|py37|py38|py39] Python versions that should be supported by Black's output. [default: per-file auto- detection] @@ -90,9 +97,13 @@ Options: -S, --skip-string-normalization Don't normalize string quotes or prefixes. + -C, --skip-magic-trailing-comma + Don't use trailing commas as a reason to + split lines. + --check Don't write the files back, just return the - status. Return code 0 means nothing would - change. Return code 1 means some files + status. Return code 0 means nothing would + change. Return code 1 means some files would be reformatted. Return code 123 means there was an internal error. @@ -107,26 +118,38 @@ Options: --include TEXT A regular expression that matches files and directories that should be included on - recursive searches. An empty value means + recursive searches. An empty value means all files are included regardless of the - name. Use forward slashes for directories - on all platforms (Windows, too). Exclusions + name. Use forward slashes for directories + on all platforms (Windows, too). Exclusions are calculated first, inclusions later. [default: \.pyi?$] --exclude TEXT A regular expression that matches files and directories that should be excluded on - recursive searches. An empty value means no + recursive searches. An empty value means no paths are excluded. Use forward slashes for directories on all platforms (Windows, too). Exclusions are calculated first, inclusions - later. [default: /(\.eggs|\.git|\.hg|\.mypy - _cache|\.nox|\.tox|\.venv|\.svn|_build|buck- - out|build|dist)/] + later. [default: /(\.direnv|\.eggs|\.git|\. + hg|\.mypy_cache|\.nox|\.tox|\.venv|venv|\.sv + n|_build|buck-out|build|dist)/] + + --extend-exclude TEXT Like --exclude, but adds additional files + and directories on top of the excluded + ones (useful if you simply want to add to + the default). --force-exclude TEXT Like --exclude, but files and directories matching this regex will be excluded even - when they are passed explicitly as arguments + when they are passed explicitly as + arguments. + + + --stdin-filename TEXT The name of the file when passing it through + stdin. Useful to make sure Black will + respect --force-exclude option on some + editors that rely on using stdin. -q, --quiet Don't emit non-error messages to stderr. Errors are still emitted; silence those with @@ -134,10 +157,10 @@ Options: -v, --verbose Also emit messages to stderr about files that were not changed or were ignored due to - --exclude=. + exclusion patterns. --version Show the version and exit. - --config FILE Read configuration from PATH. + --config FILE Read configuration from FILE path. -h, --help Show this message and exit. ``` @@ -157,7 +180,7 @@ about _Black_'s changes or will overwrite _Black_'s changes. A good example of t should be configured to neither warn about nor overwrite _Black_'s changes. Actual details on _Black_ compatible configurations for various tools can be found in -[compatible_configs](https://github.com/psf/black/blob/master/docs/compatible_configs.md). +[compatible_configs](https://github.com/psf/black/blob/master/docs/compatible_configs.md#black-compatible-configurations). ### Migrating your code style without ruining git blame @@ -205,24 +228,28 @@ know!) ### NOTE: This is a beta product -_Black_ is already [successfully used](#used-by) by many projects, small and big. It -also sports a decent test suite. However, it is still very new. Things will probably be -wonky for a while. This is made explicit by the "Beta" trove classifier, as well as by -the "b" in the version number. What this means for you is that **until the formatter -becomes stable, you should expect some formatting to change in the future**. That being -said, no drastic stylistic changes are planned, mostly responses to bug reports. +_Black_ is already [successfully used](https://github.com/psf/black#used-by) by many +projects, small and big. It also sports a decent test suite. However, it is still very +new. Things will probably be wonky for a while. This is made explicit by the "Beta" +trove classifier, as well as by the "b" in the version number. What this means for you +is that **until the formatter becomes stable, you should expect some formatting to +change in the future**. That being said, no drastic stylistic changes are planned, +mostly responses to bug reports. -Also, as a temporary safety measure, _Black_ will check that the reformatted code still -produces a valid AST that is equivalent to the original. This slows it down. If you're -feeling confident, use `--fast`. +Also, as a safety measure which slows down processing, _Black_ will check that the +reformatted code still produces a valid AST that is effectively equivalent to the +original (see the +[Pragmatism](https://github.com/psf/black/blob/master/docs/the_black_code_style.md#pragmatism) +section for details). If you're feeling confident, use `--fast`. ## The _Black_ code style _Black_ is a PEP 8 compliant opinionated formatter. _Black_ reformats entire files in place. It is not configurable. It doesn't take previous formatting into account. Your main option of configuring _Black_ is that it doesn't reformat blocks that start with -`# fmt: off` and end with `# fmt: on`. `# fmt: on/off` have to be on the same level of -indentation. To learn more about _Black_'s opinions, to go +`# fmt: off` and end with `# fmt: on`, or lines that ends with `# fmt: skip`. Pay +attention that `# fmt: on/off` have to be on the same level of indentation. To learn +more about _Black_'s opinions, to go [the_black_code_style](https://github.com/psf/black/blob/master/docs/the_black_code_style.md). Please refer to this document before submitting an issue. What seems like a bug might be @@ -244,7 +271,7 @@ above. What seems like a bug might be intended behaviour. _Black_ is able to read project-specific default values for its command line options from a `pyproject.toml` file. This is especially useful for specifying custom -`--include` and `--exclude` patterns for your project. +`--include` and `--exclude`/`--extend-exclude` patterns for your project. **Pro-tip**: If you're asking yourself "Do I need to configure anything?" the answer is "No". _Black_ is all about sensible defaults. @@ -267,6 +294,20 @@ parent directories. It stops looking when it finds the file, or a `.git` directo If you're formatting standard input, _Black_ will look for configuration starting from the current working directory. +You can use a "global" configuration, stored in a specific location in your home +directory. This will be used as a fallback configuration, that is, it will be used if +and only if _Black_ doesn't find any configuration as mentioned above. Depending on your +operating system, this configuration file should be stored as: + +- Windows: `~\.black` +- Unix-like (Linux, MacOS, etc.): `$XDG_CONFIG_HOME/black` (`~/.config/black` if the + `XDG_CONFIG_HOME` environment variable is not set) + +Note that these are paths to the TOML file itself (meaning that they shouldn't be named +as `pyproject.toml`), not directories where you store the configuration. Here, `~` +refers to the path to your home directory. On Windows, this will be something like +`C:\\Users\UserName`. + You can also explicitly specify the path to a particular file that you want with `--config`. In this situation _Black_ will not look for any other file. @@ -287,31 +328,17 @@ the equivalent of r-strings in Python. Multiline strings are treated as verbose expressions by Black. Use `[ ]` to denote a significant space character.
-Example `pyproject.toml` +Example pyproject.toml ```toml [tool.black] line-length = 88 target-version = ['py37'] include = '\.pyi?$' -exclude = ''' - -( - /( - \.eggs # exclude a few common directories in the - | \.git # root of the project - | \.hg - | \.mypy_cache - | \.tox - | \.venv - | _build - | buck-out - | build - | dist - )/ - | foo.py # also separately exclude a file named foo.py in - # the root of the project -) +extend-exclude = ''' +# A regex preceded with ^/ will apply only to files and directories +# in the root of the project. +^/foo.py # exclude a file named foo.py in the root of the project (in addition to the defaults) ''' ``` @@ -348,8 +375,8 @@ rolling. ## black-primer -`black-primer` is a tool built for CI (and huumans) to have _Black_ `--check` a number -of (configured in `primer.json`) Git accessible projects in parallel. +`black-primer` is a tool built for CI (and humans) to have _Black_ `--check` a number of +(configured in `primer.json`) Git accessible projects in parallel. [black_primer](https://github.com/psf/black/blob/master/docs/black_primer.md) has more information regarding its usage and configuration. @@ -364,10 +391,10 @@ Use [pre-commit](https://pre-commit.com/). Once you ```yaml repos: - repo: https://github.com/psf/black - rev: stable + rev: 20.8b1 # Replace by any tag/version: https://github.com/psf/black/tags hooks: - id: black - language_version: python3.6 + language_version: python3 # Should be a command that runs python3.6+ ``` Then run `pre-commit install` and you're ready to go. @@ -398,8 +425,16 @@ jobs: - uses: actions/checkout@v2 - uses: actions/setup-python@v2 - uses: psf/black@stable + with: + args: ". --check" ``` +### Inputs + +#### `black_args` + +**optional**: Black input arguments. Defaults to `. --check --diff`. + ## Ignoring unmodified files _Black_ remembers files it has already formatted, unless the `--diff` flag is used or @@ -427,9 +462,9 @@ then write the above files to `.cache/black//`. The following notable open-source projects trust _Black_ with enforcing a consistent code style: pytest, tox, Pyramid, Django Channels, Hypothesis, attrs, SQLAlchemy, Poetry, PyPA applications (Warehouse, Bandersnatch, Pipenv, virtualenv), pandas, Pillow, -every Datadog Agent Integration, Home Assistant. +every Datadog Agent Integration, Home Assistant, Zulip. -The following organizations use _Black_: Facebook, Dropbox. +The following organizations use _Black_: Facebook, Dropbox, Mozilla, Quora. Are we missing anyone? Let us know. @@ -458,7 +493,7 @@ Twisted and CPython: Use the badge in your project's README.md: -```markdown +```md [![Code style: black](https://img.shields.io/badge/code%20style-black-000000.svg)](https://github.com/psf/black) ``` @@ -505,8 +540,8 @@ Maintained with [Carol Willing](mailto:carolcode@willingconsulting.com), [Carl Meyer](mailto:carl@oddbird.net), [Jelle Zijlstra](mailto:jelle.zijlstra@gmail.com), [Mika Naylor](mailto:mail@autophagy.io), -[Zsolt Dollenstein](mailto:zsol.zsol@gmail.com), and -[Cooper Lees](mailto:me@cooperlees.com). +[Zsolt Dollenstein](mailto:zsol.zsol@gmail.com), +[Cooper Lees](mailto:me@cooperlees.com), and Richard Si. Multiple contributions by: @@ -542,6 +577,7 @@ Multiple contributions by: - [Christian Clauss](mailto:cclauss@bluewin.ch) - [Christian Heimes](mailto:christian@python.org) - [Chuck Wooters](mailto:chuck.wooters@microsoft.com) +- [Chris Rose](mailto:offline@offby1.net) - Codey Oxley - [Cong](mailto:congusbongus@gmail.com) - [Cooper Ry Lees](mailto:me@cooperlees.com) @@ -565,6 +601,7 @@ Multiple contributions by: - [Gregory P. Smith](mailto:greg@krypto.org) - Gustavo Camargo - hauntsaninja +- [Hadi Alqattan](mailto:alqattanhadizaki@gmail.com) - [Heaford](mailto:dan@heaford.com) - [Hugo Barrera](mailto::hugo@barrera.io) - Hugo van Kemenade @@ -586,6 +623,7 @@ Multiple contributions by: - [Joseph Larson](mailto:larson.joseph@gmail.com) - [Josh Bode](mailto:joshbode@fastmail.com) - [Josh Holland](mailto:anowlcalledjosh@gmail.com) +- [Joshua Cannon](mailto:joshdcannon@gmail.com) - [José Padilla](mailto:jpadilla@webapplicate.com) - [Juan Luis Cano Rodríguez](mailto:hello@juanlu.space) - [kaiix](mailto:kvn.hou@gmail.com) @@ -618,7 +656,7 @@ Multiple contributions by: - [Miroslav Shubernetskiy](mailto:miroslav@miki725.com) - MomIsBestFriend - [Nathan Goldbaum](mailto:ngoldbau@illinois.edu) -- [Nathan Hunt](mailtoneighthan.hunt@gmail.com) +- [Nathan Hunt](mailto:neighthan.hunt@gmail.com) - [Neraste](mailto:neraste.herr10@gmail.com) - [Nikolaus Waxweiler](mailto:madigens@gmail.com) - [Ofek Lev](mailto:ofekmeister@gmail.com) @@ -628,6 +666,7 @@ Multiple contributions by: - [Paul Ganssle](mailto:p.ganssle@gmail.com) - [Paul Meinhardt](mailto:mnhrdt@gmail.com) - [Peter Bengtsson](mailto:mail@peterbe.com) +- [Peter Grayson](mailto:pete@jpgrayson.net) - [Peter Stensmyr](mailto:peter.stensmyr@gmail.com) - pmacosta - [Quentin Pradet](mailto:quentin@pradet.me) @@ -677,3 +716,4 @@ Multiple contributions by: - Yazdan - [Yngve Høiseth](mailto:yngve@hoiseth.net) - [Yurii Karabas](mailto:1998uriyyo@gmail.com) +- [Zac Hatfield-Dodds](mailto:zac@zhd.dev)