X-Git-Url: https://git.madduck.net/etc/vim.git/blobdiff_plain/cd3a93a14689f046468ece2a5b1f78863c3c4cd2..0be7f96d9ce764db1b2b6e176f6e74a3cdece665:/README.md?ds=inline diff --git a/README.md b/README.md index 20f6fa4..411a8c8 100644 --- a/README.md +++ b/README.md @@ -11,6 +11,7 @@ +
@@ -48,7 +49,7 @@ _Contents:_ **[Installation and usage](#installation-and-usage)** | ### Installation -_Black_ can be installed by running `pip install black`. It requires Python 3.6.0+ to +_Black_ can be installed by running `pip install black`. It requires Python 3.6.2+ to run but you can reformat Python 2 code with it, too. #### Install from GitHub @@ -85,7 +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] @@ -96,6 +97,10 @@ 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 @@ -126,13 +131,25 @@ Options: 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|\.svn|_bu + ild|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 @@ -140,7 +157,7 @@ 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 FILE path. @@ -163,7 +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 @@ -211,12 +228,13 @@ 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 @@ -227,8 +245,9 @@ feeling confident, use `--fast`. _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 @@ -250,7 +269,7 @@ 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. @@ -300,24 +319,10 @@ expressions by Black. Use `[ ]` to denote a significant space character. 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) ''' ``` @@ -370,7 +375,7 @@ Use [pre-commit](https://pre-commit.com/). Once you ```yaml repos: - repo: https://github.com/psf/black - rev: 19.10b0 # Replace by any tag/version: https://github.com/psf/black/tags + rev: 20.8b1 # Replace by any tag/version: https://github.com/psf/black/tags hooks: - id: black language_version: python3 # Should be a command that runs python3.6+ @@ -404,8 +409,16 @@ 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 @@ -433,7 +446,7 @@ then write the above files to `.cache/black/