X-Git-Url: https://git.madduck.net/etc/vim.git/blobdiff_plain/180bc06ede96959fd52b43467ce3836655108719..2ff05f25846c10b2fee269c29569b96dbac42836:/README.md diff --git a/README.md b/README.md index c56f454..41ad465 100644 --- a/README.md +++ b/README.md @@ -26,8 +26,23 @@ content instead. *Black* makes code review faster by producing the smallest diffs possible. +--- -## Installation and Usage +*Contents:* **[Installation and usage](#installation-and-usage)** | +**[The *Black* code style](#the-black-code-style)** | +**[Editor integration](#editor-integration)** | +**[Version control integration](#version-control-integration)** | +**[Ignoring unmodified files](#ignoring-unmodified-files)** | +**[Testimonials](#testimonials)** | +**[Show your style](#show-your-style)** | +**[License](#license)** | +**[Contributing](#contributing-to-black)** | +**[Change Log](#change-log)** | +**[Authors](#authors)** + +--- + +## Installation and usage ### Installation @@ -65,6 +80,13 @@ Options: -q, --quiet Don't emit non-error messages to stderr. Errors are still emitted, silence those with 2>/dev/null. + --pyi Consider all input files typing stubs regardless + of file extension (useful when piping source on + standard input). + --py36 Allow using Python 3.6-only syntax on all input + files. This will put trailing commas in function + signatures and calls also after *args and + **kwargs. [default: per-file auto-detection] --version Show the version and exit. --help Show this message and exit. ``` @@ -78,14 +100,16 @@ Options: used). -### NOTE: This is an early pre-release +### NOTE: This is a beta product -*Black* can already successfully format itself and the standard library. +*Black* is already successfully used by several 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 -"Alpha" trove classifier, as well as by the "a" in the version number. +"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**. +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 @@ -180,10 +204,26 @@ If a data structure literal (tuple, list, set, dict) or a line of "from" imports cannot fit in the allotted length, it's always split into one element per line. This minimizes diffs as well as enables readers of code to find which commit introduced a particular entry. This also -makes *Black* compatible with [isort](https://pypi.org/p/isort/). Use -`multi_line_output=3`, `include_trailing_comma=True`, -`force_grid_wrap=0`, and `line_length=88` in your isort config. +makes *Black* compatible with [isort](https://pypi.org/p/isort/) with +the following configuration. +
+A compatible `.isort.cfg` + +``` +[settings] +multi_line_output=3 +include_trailing_comma=True +force_grid_wrap=0 +combine_as_imports=True +line_length=88 +``` + +The equivalent command line is: +``` +$ isort --multi-line=3 --trailing-comma --force-grid-wrap=0 --combine-as --line-width=88 [ file.py ] +``` +
### Line length @@ -299,7 +339,7 @@ key. My recommendation here is to keep using whatever is faster to type and let *Black* handle the transformation. -### Line Breaks & Binary Operators +### Line breaks & binary operators *Black* will break a line before a binary operator when splitting a block of code over multiple lines. This is so that *Black* is compliant with the @@ -363,7 +403,7 @@ decision = (maybe.this() and values > 0) or (maybe.that() and values < 0) Some popular APIs, like ORMs, use call chaining. This API style is known as a [fluent interface](https://en.wikipedia.org/wiki/Fluent_interface). -*Black* formats those treating dots that follow a call or an indexing +*Black* formats those by treating dots that follow a call or an indexing operation like a very low priority delimiter. It's easier to show the behavior than to explain it. Look at the example: ```py3 @@ -429,19 +469,25 @@ Use [proofit404/blacken](https://github.com/proofit404/blacken). 1. Install `black`. - $ pip install black +```console +$ pip install black +``` 2. Locate your `black` installation folder. - On MacOS / Linux / BSD: + On macOS / Linux / BSD: - $ which black - /usr/local/bin/black # possible location +```console +$ which black +/usr/local/bin/black # possible location +``` On Windows: - $ where black - %LocalAppData%\Programs\Python\Python36-32\Scripts\black.exe # possible location +```console +$ where black +%LocalAppData%\Programs\Python\Python36-32\Scripts\black.exe # possible location +``` 3. Open External tools in PyCharm with `File -> Settings -> Tools -> External Tools`. @@ -498,9 +544,15 @@ install *Black* (for example you want to run a version from master), create a virtualenv manually and point `g:black_virtualenv` to it. The plugin will use it. +To run *Black* on save, add the following line to `.vimrc` or `init.vim`: + +``` +autocmd BufWritePost *.py execute ':Black' +``` + **How to get Vim with Python 3.6?** On Ubuntu 17.10 Vim comes with Python 3.6 by default. -On macOS with HomeBrew run: `brew install vim --with-python3`. +On macOS with Homebrew run: `brew install vim --with-python3`. When building Vim from source, use: `./configure --enable-python3interp=yes`. There's many guides online how to do this. @@ -560,9 +612,9 @@ that is pinned to the latest release on PyPI. If you'd rather run on master, this is also an option. -## Ignoring non-modified files +## Ignoring unmodified files -*Black* remembers files it already formatted, unless the `--diff` flag is used or +*Black* remembers files it has already formatted, unless the `--diff` flag is used or code is passed via standard input. This information is stored per-user. The exact location of the file depends on the black version and the system on which black is run. The file is non-portable. The standard location on common operating systems @@ -628,7 +680,29 @@ More details can be found in [CONTRIBUTING](CONTRIBUTING.md). ## Change Log -### 18.5a0 (unreleased) +### 18.5b1 (unreleased) + +* added `--pyi` (#249) + +* added `--py36` (#249) + +* Python grammar pickle caches are stored with the formatting caches, making + *Black* work in environments where site-packages is not user-writable (#192) + +* fixed invalid code produced when standalone comments were present in a trailer + that was omitted from line splitting on a large expression (#237) + +* fixed optional parentheses being removed within `# fmt: off` sections (#224) + +* fixed invalid code produced when stars in very long imports were incorrectly + wrapped in optional parentheses (#234) + +* fixed unstable formatting when inline comments were moved around in + a trailer that was omitted from line splitting on a large expression + (#238) + + +### 18.5b0 * call chains are now formatted according to the [fluent interfaces](https://en.wikipedia.org/wiki/Fluent_interface) @@ -889,3 +963,18 @@ Multiple contributions by: * [Osaetin Daniel](mailto:osaetindaniel@gmail.com) * [Sunil Kapil](mailto:snlkapil@gmail.com) * [Vishwas B Sharma](mailto:sharma.vishwas88@gmail.com) + +--- + +*Contents:* +**[Installation and Usage](#installation-and-usage)** | +**[The *Black* code style](#the-black-code-style)** | +**[Editor integration](#editor-integration)** | +**[Version control integration](#version-control-integration)** | +**[Ignoring unmodified files](#ignoring-unmodified-files)** | +**[Testimonials](#testimonials)** | +**[Show your style](#show-your-style)** | +**[License](#license)** | +**[Contributing](#contributing-to-black)** | +**[Change Log](#change-log)** | +**[Authors](#authors)**