Merge pull request #1203 from Carpetsmoker/autocmd-start
Add ALEStartLint autocmd
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12
README.md
12
README.md
@ -40,7 +40,7 @@ formatting tools, and some Language Server Protocol and `tsserver` features.
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5. [How can I show errors or warnings in my statusline?](#faq-statusline)
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6. [How can I show errors or warnings in my lightline?](#faq-lightline)
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7. [How can I change the format for echo messages?](#faq-echo-format)
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8. [How can I execute some code when ALE stops linting?](#faq-autocmd)
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8. [How can I execute some code when ALE starts or stops linting?](#faq-autocmd)
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9. [How can I navigate between errors quickly?](#faq-navigation)
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10. [How can I run linters only when I save files?](#faq-lint-on-save)
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11. [How can I use the quickfix list instead of the loclist?](#faq-quickfix)
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@ -493,16 +493,18 @@ Will give you:
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<a name="faq-autocmd"></a>
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### 5.viii. How can I execute some code when ALE stops linting?
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### 5.viii. How can I execute some code when ALE starts or stops linting?
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ALE runs its own [autocmd](http://vimdoc.sourceforge.net/htmldoc/autocmd.html)
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event whenever has a linter has been successfully executed and processed. This
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autocmd event can be used to call arbitrary functions after ALE stops linting.
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events whenever has a linter is started and has been successfully executed and
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processed. These events can be used to call arbitrary functions before and after
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ALE stops linting.
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```vim
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augroup YourGroup
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autocmd!
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autocmd User ALELint call YourFunction()
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autocmd User ALELintPre call YourFunction()
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autocmd User ALELintPost call YourFunction()
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augroup END
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```
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@ -321,6 +321,8 @@ function! ale#engine#SetResults(buffer, loclist) abort
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call ale#engine#RemoveManagedFiles(a:buffer)
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" Call user autocommands. This allows users to hook into ALE's lint cycle.
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silent doautocmd <nomodeline> User ALELintPost
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" Old DEPRECATED name; call it for backwards compatibility.
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silent doautocmd <nomodeline> User ALELint
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endif
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endfunction
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@ -785,6 +787,8 @@ function! ale#engine#RunLinters(buffer, linters, should_lint_file) abort
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" We can only clear the results if we aren't checking the buffer.
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let l:can_clear_results = !ale#engine#IsCheckingBuffer(a:buffer)
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silent doautocmd <nomodeline> User ALELintPre
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for l:linter in a:linters
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" Only run lint_file linters if we should.
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if !l:linter.lint_file || a:should_lint_file
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34
doc/ale.txt
34
doc/ale.txt
@ -2051,7 +2051,7 @@ ale#linter#Define(filetype, linter) *ale#linter#Define()*
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the file on disk, including |g:ale_lint_on_enter|
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and |g:ale_lint_on_save|. Linters with this option
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set to `1` will also be run when linters are run
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manually, per |ALELint-autocmd|.
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manually, per |ALELintPost-autocmd|.
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When this option is set to `1`, `read_buffer` will
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be set automatically to `0`. The two options cannot
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@ -2185,20 +2185,32 @@ ale#statusline#Count(buffer) *ale#statusline#Count()*
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`total` -> The total number of problems.
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ALELint *ALELint-autocmd*
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ALELintPre ALELintPost *ALELintPre-autocmd* *ALELintPost-autocmd*
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This |User| autocommand is triggered by ALE every time it completes a lint
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cycle. It can be used to update statuslines, send notifications, or
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complete any other operation that needs to be done after linting has been
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performed.
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For example, you can echo a message when linting is complete like so:
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>
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autocmd User ALELint unsilent echom 'ALE run!'
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<
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These |User| autocommands are triggered before and after every lint cycle.
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It can be used to update statuslines, send notifications, etc.
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The autocmd commands are run with |:silent|, so |:unsilent| is required for
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echoing messges.
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For example to change the color of the statusline while the linter is
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running:
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>
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augroup ALEProgress
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autocmd!
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autocmd User ALELintPre hi Statusline ctermfg=darkgrey
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autocmd User ALELintPOST hi Statusline ctermfg=NONE
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augroup end
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<
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Or to display the progress in the statusline:
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>
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let s:ale_running = 0
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let l:stl .= '%{s:ale_running ? "[linting]" : ""}'
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augroup ALEProgress
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autocmd!
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autocmd User ALELintPre let s:ale_running = 1 | redrawstatus
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autocmd User ALELintPost let s:ale_running = 0 | redrawstatus
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augroup end
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<
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===============================================================================
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10. Special Thanks *ale-special-thanks*
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@ -1,5 +1,6 @@
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Before:
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let g:success = 0
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let g:pre_success = 0
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let g:post_success = 0
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let g:ale_run_synchronously = 1
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After:
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@ -10,9 +11,11 @@ After:
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Execute (Run a lint cycle, and check that a variable is set in the autocmd):
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augroup VaderTest
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autocmd!
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autocmd User ALELint let g:success = 1
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autocmd User ALELintPre let g:pre_success = 1
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autocmd User ALELintPost let g:post_success = 1
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augroup end
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call ale#Lint()
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AssertEqual g:success, 1
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AssertEqual g:pre_success, 1
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AssertEqual g:post_success, 1
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