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[etc/vim.git] / docs / usage_and_configuration / black_docker_image.md
1 # Black Docker image
2
3 Official _Black_ Docker images are available on
4 [Docker Hub](https://hub.docker.com/r/pyfound/black).
5
6 _Black_ images with the following tags are available:
7
8 - release numbers, e.g. `21.5b2`, `21.6b0`, `21.7b0` etc.\
9   ℹ Recommended for users who want to use a particular version of _Black_.
10 - `latest_release` - tag created when a new version of _Black_ is released.\
11   ℹ Recommended for users who want to use released versions of _Black_. It maps to [the latest release](https://github.com/psf/black/releases/latest)
12   of _Black_.
13 - `latest_prerelease` - tag created when a new alpha (prerelease) version of _Black_ is
14   released.\
15   ℹ Recommended for users who want to preview or test alpha versions of _Black_. Note that
16   the most recent release may be newer than any prerelease, because no prereleases are created
17   before most releases.
18 - `latest` - tag used for the newest image of _Black_.\
19   ℹ Recommended for users who always want to use the latest version of _Black_, even before
20   it is released.
21
22 There is one more tag used for _Black_ Docker images - `latest_non_release`. It is
23 created for all unreleased
24 [commits on the `main` branch](https://github.com/psf/black/commits/main). This tag is
25 not meant to be used by external users.
26
27 ## Usage
28
29 A permanent container doesn't have to be created to use _Black_ as a Docker image. It's
30 enough to run _Black_ commands for the chosen image denoted as `:tag`. In the below
31 examples, the `latest_release` tag is used. If `:tag` is omitted, the `latest` tag will
32 be used.
33
34 More about _Black_ usage can be found in
35 [Usage and Configuration: The basics](./the_basics.md).
36
37 ### Check Black version
38
39 ```console
40 $ docker run --rm pyfound/black:latest_release black --version
41 ```
42
43 ### Check code
44
45 ```console
46 $ docker run --rm --volume $(pwd):/src --workdir /src pyfound/black:latest_release black --check .
47 ```
48
49 _Remark_: besides [regular _Black_ exit codes](./the_basics.md) returned by `--check`
50 option, [Docker exit codes](https://docs.docker.com/engine/reference/run/#exit-status)
51 should also be considered.