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Add an FAQ entry explaining how to configure ALE for different buffers.

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w0rp 2017-11-19 13:56:09 +00:00
parent 62904d39ee
commit 151f9f857c
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37
README.md
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@ -47,6 +47,7 @@ servers with similar enough protocols, like `tsserver`.
12. [How can I check JSX files with both stylelint and eslint?](#faq-jsx-stylelint-eslint)
13. [Will this plugin eat all of my laptop battery power?](#faq-my-battery-is-sad)
14. [How can I configure my C or C++ project?](#faq-c-configuration)
15. [How can I configure ALE differently for different buffers?](#faq-buffer-configuration)
<a name="supported-languages"></a>
@ -640,3 +641,39 @@ want to use only `gcc` for one project, and only `clang` for another.
You may also configure buffer-local settings for linters with project-specific
vimrc files. [local_vimrc](https://github.com/LucHermitte/local_vimrc) can be
used for executing local vimrc files which can be shared in your project.
<a name="faq-buffer-configuration"></a>
### 5.xv. How can I configure ALE differently for different buffers?
ALE offers various ways to configure which linters or fixers are run, and
other settings. For the majority of ALE's settings, they can either be
configured globally with a `g:` variable prefix, or for a specific buffer
with a `b:` variable prefix. For example, you can configure a Python ftplugin
file like so.
```vim
" In ~/.vim/ftplugin/python.vim
" Check Python files with flake8 and pylint.
let b:ale_linters = ['flake8', 'pylint']
" Fix Python files with autopep8 and yapf.
let b:ale_fixers = ['autopep8', 'yapf']
" Disable warnings about trailing whitespace for Python files.
let b:ale_warn_about_trailing_whitespace = 0
```
For configuring files based on regular expression patterns matched against the
absolute path to a file, you can use `g:ale_pattern_options`.
```vim
" Do not lint or fix minified files.
let g:ale_pattern_options = {
\ '\.min\.js$': {'ale_linters': [], 'ale_fixers: []},
\ '\.min\.css$': {'ale_linters': [], 'ale_fixers: []},
\}
" If you configure g:ale_pattern_options outside of vimrc, you need this.
let g:ale_pattern_options_enabled = 1
```
Buffer-local variables for settings always override the global settings.

3
doc/ale.txt
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@ -414,7 +414,8 @@ including disabling ALE for certain buffers with |b:ale_enabled|. The
|g:ale_pattern_options| setting can be used to configure files differently
based on regular expressions for filenames. For configuring entire projects,
the buffer-local options can be used with external plugins for reading Vim
project configuration files.
project configuration files. Buffer-local settings can also be used in
ftplugin files for different filetypes.
===============================================================================