]>
git.madduck.net Git - etc/vim.git/blobdiff - docs/usage_and_configuration/the_basics.md
madduck's git repository
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All patches and comments are welcome. Please squash your changes to logical
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patches@ git. madduck. net .
If you'd read over the Git project's submission guidelines and adhered to them,
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arranged .
If you use my repositories frequently, consider adding the following
snippet to ~/.gitconfig and using the third clone URL listed for each
project:
[url "git://git.madduck.net/madduck/"]
insteadOf = madduck:
In a [configuration file](#configuration-via-a-file), you can write:
```toml
In a [configuration file](#configuration-via-a-file), you can write:
```toml
-target-versions = ["py37", "py38", "py39", "py310"]
+target-version = ["py37", "py38", "py39", "py310"]
```
_Black_ uses this option to decide what grammar to use to parse your code. In addition,
```
_Black_ uses this option to decide what grammar to use to parse your code. In addition,
```console
$ black test.py --diff
```console
$ black test.py --diff
---- test.py 2021-03-08 22:23:40.848954 +00 00
-+++ test.py 2021-03-08 22:23:47.126319 +00 00
+--- test.py 2021-03-08 22:23:40.848954+00: 00
++++ test.py 2021-03-08 22:23:47.126319+00: 00
@@ -1 +1 @@
-print ( 'hello, world' )
+print("hello, world")
@@ -1 +1 @@
-print ( 'hello, world' )
+print("hello, world")
```console
$ black --version
```console
$ black --version
-black, 23.3 .0 (compiled: yes)
-$ black --required-version 23.3 .0 -c "format = 'this'"
+black, 23.9 .0 (compiled: yes)
+$ black --required-version 23.9 .0 -c "format = 'this'"
format = "this"
$ black --required-version 31.5b2 -c "still = 'beta?!'"
Oh no! 💥 💔 💥 The required version does not match the running version!
format = "this"
$ black --required-version 31.5b2 -c "still = 'beta?!'"
Oh no! 💥 💔 💥 The required version does not match the running version!
#### `-W`, `--workers`
When _Black_ formats multiple files, it may use a process pool to speed up formatting.
#### `-W`, `--workers`
When _Black_ formats multiple files, it may use a process pool to speed up formatting.
-This option controls the number of parallel workers.
+This option controls the number of parallel workers. This can also be specified via the
+`BLACK_NUM_WORKERS` environment variable.
```console
$ black --version
```console
$ black --version
Show available command-line options and exit.
Show available command-line options and exit.
+### Environment variable options
+
+_Black_ supports the following configuration via environment variables.
+
+#### `BLACK_CACHE_DIR`
+
+The directory where _Black_ should store its cache.
+
+#### `BLACK_NUM_WORKERS`
+
+The number of parallel workers _Black_ should use. The command line option `-W` /
+`--workers` takes precedence over this environment variable.
+
### Code input alternatives
_Black_ supports formatting code via stdin, with the result being printed to stdout.
### Code input alternatives
_Black_ supports formatting code via stdin, with the result being printed to stdout.