ale/plugin/ale.vim

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" Author: w0rp <devw0rp@gmail.com>
" Description: Main entry point for the plugin: sets up prefs and autocommands
" Preferences can be set in vimrc files and so on to configure ale
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" Sanity Checks
if exists('g:loaded_ale_dont_use_this_in_other_plugins_please')
finish
endif
" Set a special flag used only by this plugin for preventing doubly
" loading the script.
let g:loaded_ale_dont_use_this_in_other_plugins_please = 1
" A flag for detecting if the required features are set.
if has('nvim')
let s:has_features = has('timers')
else
" Check if Job and Channel functions are available, instead of the
" features. This works better on old MacVim versions.
let s:has_features = has('timers') && exists('*job_start') && exists('*ch_close_in')
endif
if !s:has_features
" Only output a warning if editing some special files.
if index(['', 'gitcommit'], &filetype) == -1
echoerr 'ALE requires NeoVim >= 0.1.5 or Vim 8 with +timers +job +channel'
echoerr 'Please update your editor appropriately.'
endif
" Stop here, as it won't work.
finish
endif
" This flag can be set to 0 to disable emitting conflict warnings.
let g:ale_emit_conflict_warnings = get(g:, 'ale_emit_conflict_warnings', 1)
if g:ale_emit_conflict_warnings
" Add the after directory to the runtimepath
let &runtimepath .= ',' . expand('<sfile>:p:h:h') . '/after'
endif
" Set this flag so that other plugins can use it, like airline.
let g:loaded_ale = 1
" Set the TMPDIR environment variable if it is not set automatically.
" This can automatically fix some environments.
if has('unix') && empty($TMPDIR)
let $TMPDIR = '/tmp'
endif
" This global variable is used internally by ALE for tracking information for
" each buffer which linters are being run against.
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let g:ale_buffer_info = {}
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" User Configuration
" This option prevents ALE autocmd commands from being run for particular
" filetypes which can cause issues.
let g:ale_filetype_blacklist = [
\ 'dirvish',
\ 'nerdtree',
\ 'qf',
\ 'tags',
\ 'unite',
\]
" This Dictionary configures which linters are enabled for which languages.
let g:ale_linters = get(g:, 'ale_linters', {})
" This Dictionary configures which functions will be used for fixing problems.
let g:ale_fixers = get(g:, 'ale_fixers', {})
" This Dictionary allows users to set up filetype aliases for new filetypes.
let g:ale_linter_aliases = get(g:, 'ale_linter_aliases', {})
" This flag can be set with a number of milliseconds for delaying the
" execution of a linter when text is changed. The timeout will be set and
" cleared each time text is changed, so repeated edits won't trigger the
" jobs for linting until enough time has passed after editing is done.
let g:ale_lint_delay = get(g:, 'ale_lint_delay', 200)
" This flag can be set to 'never' to disable linting when text is changed.
" This flag can also be set to 'insert' or 'normal' to lint when text is
" changed only in insert or normal mode respectively.
let g:ale_lint_on_text_changed = get(g:, 'ale_lint_on_text_changed', 'always')
" This flag can be set to 1 to enable linting when leaving insert mode.
let g:ale_lint_on_insert_leave = get(g:, 'ale_lint_on_insert_leave', 0)
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" This flag can be set to 0 to disable linting when the buffer is entered.
let g:ale_lint_on_enter = get(g:, 'ale_lint_on_enter', 1)
" This flag can be set to 1 to enable linting when a buffer is written.
let g:ale_lint_on_save = get(g:, 'ale_lint_on_save', 1)
" This flag can be set to 1 to enable linting when the filetype is changed.
let g:ale_lint_on_filetype_changed = get(g:, 'ale_lint_on_filetype_changed', 1)
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call ale#Set('fix_on_save', 0)
" This flag may be set to 0 to disable ale. After ale is loaded, :ALEToggle
" should be used instead.
let g:ale_enabled = get(g:, 'ale_enabled', 1)
" These flags dictates if ale uses the quickfix or the loclist (loclist is the
" default, quickfix overrides loclist).
let g:ale_set_loclist = get(g:, 'ale_set_loclist', 1)
let g:ale_set_quickfix = get(g:, 'ale_set_quickfix', 0)
" This flag dictates if ale open the configured loclist
let g:ale_open_list = get(g:, 'ale_open_list', 0)
" This flag dictates if ale keeps open loclist even if there is no error in loclist
let g:ale_keep_list_window_open = get(g:, 'ale_keep_list_window_open', 0)
" The window size to set for the quickfix and loclist windows
call ale#Set('list_window_size', 10)
" This flag can be set to 0 to disable setting signs.
" This is enabled by default only if the 'signs' feature exists.
let g:ale_set_signs = get(g:, 'ale_set_signs', has('signs'))
" This flag can be set to some integer to control the maximum number of signs
" that ALE will set.
let g:ale_max_signs = get(g:, 'ale_max_signs', -1)
" This flag can be set to 1 to enable changing the sign column colors when
" there are errors.
call ale#Set('change_sign_column_color', 0)
" This flag can be set to 0 to disable setting error highlights.
let g:ale_set_highlights = get(g:, 'ale_set_highlights', has('syntax'))
" These variables dictate what sign is used to indicate errors and warnings.
call ale#Set('sign_error', '>>')
call ale#Set('sign_style_error', g:ale_sign_error)
call ale#Set('sign_warning', '--')
call ale#Set('sign_style_warning', g:ale_sign_warning)
call ale#Set('sign_info', g:ale_sign_warning)
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" This variable sets an offset which can be set for sign IDs.
" This ID can be changed depending on what IDs are set for other plugins.
" The dummy sign will use the ID exactly equal to the offset.
let g:ale_sign_offset = get(g:, 'ale_sign_offset', 1000000)
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" This flag can be set to 1 to keep sign gutter always open
let g:ale_sign_column_always = get(g:, 'ale_sign_column_always', 0)
" String format for the echoed message
" A %s is mandatory
" It can contain 2 handlers: %linter%, %severity%
let g:ale_echo_msg_format = get(g:, 'ale_echo_msg_format', '%s')
" Strings used for severity in the echoed message
let g:ale_echo_msg_error_str = get(g:, 'ale_echo_msg_error_str', 'Error')
let g:ale_echo_msg_warning_str = get(g:, 'ale_echo_msg_warning_str', 'Warning')
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" This flag can be set to 0 to disable echoing when the cursor moves.
let g:ale_echo_cursor = get(g:, 'ale_echo_cursor', 1)
" Controls the milliseconds delay before echoing a message.
let g:ale_echo_delay = get(g:, 'ale_echo_delay', 10)
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" This flag can be set to 0 to disable balloon support.
call ale#Set('set_balloons', has('balloon_eval'))
" A deprecated setting for ale#statusline#Status()
" See :help ale#statusline#Count() for getting status reports.
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let g:ale_statusline_format = get(g:, 'ale_statusline_format',
\ ['%d error(s)', '%d warning(s)', 'OK']
\)
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" This flag can be set to 0 to disable warnings for trailing whitespace
let g:ale_warn_about_trailing_whitespace =
\ get(g:, 'ale_warn_about_trailing_whitespace', 1)
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" A flag for controlling the maximum size of the command history to store.
let g:ale_max_buffer_history_size = get(g:, 'ale_max_buffer_history_size', 20)
" A flag for enabling or disabling the command history.
let g:ale_history_enabled = get(g:, 'ale_history_enabled', 1)
" A flag for storing the full output of commands in the history.
let g:ale_history_log_output = get(g:, 'ale_history_log_output', 1)
" A dictionary mapping regular expression patterns to arbitrary buffer
" variables to be set. Useful for configuration ALE based on filename
" patterns.
call ale#Set('pattern_options', {})
call ale#Set('pattern_options_enabled', !empty(g:ale_pattern_options))
" A maximum file size for checking for errors.
call ale#Set('maximum_file_size', 0)
" Remapping of linter problems.
call ale#Set('type_map', {})
" Enable automatic completion with LSP servers and tsserver
call ale#Set('completion_enabled', 0)
call ale#Set('completion_delay', 100)
call ale#Set('completion_max_suggestions', 50)
function! ALEInitAuGroups() abort
" This value used to be a Boolean as a Number, and is now a String.
let l:text_changed = '' . g:ale_lint_on_text_changed
augroup ALEPatternOptionsGroup
autocmd!
if g:ale_enabled && g:ale_pattern_options_enabled
autocmd BufEnter,BufRead * call ale#pattern_options#SetOptions()
endif
augroup END
augroup ALERunOnTextChangedGroup
autocmd!
if g:ale_enabled
if l:text_changed is? 'always' || l:text_changed is# '1'
autocmd TextChanged,TextChangedI * call ale#Queue(g:ale_lint_delay)
elseif l:text_changed is? 'normal'
autocmd TextChanged * call ale#Queue(g:ale_lint_delay)
elseif l:text_changed is? 'insert'
autocmd TextChangedI * call ale#Queue(g:ale_lint_delay)
endif
endif
augroup END
augroup ALERunOnEnterGroup
autocmd!
if g:ale_enabled
" Handle everything that needs to happen when buffers are entered.
autocmd BufEnter * call ale#events#EnterEvent(str2nr(expand('<abuf>')))
endif
if g:ale_enabled && g:ale_lint_on_enter
autocmd BufWinEnter,BufRead * call ale#Queue(0, 'lint_file', str2nr(expand('<abuf>')))
" Track when the file is changed outside of Vim.
autocmd FileChangedShellPost * call ale#events#FileChangedEvent(str2nr(expand('<abuf>')))
endif
augroup END
augroup ALERunOnFiletypeChangeGroup
autocmd!
if g:ale_enabled && g:ale_lint_on_filetype_changed
" Only start linting if the FileType actually changes after
" opening a buffer. The FileType will fire when buffers are opened.
autocmd FileType * call ale#events#FileTypeEvent(
\ str2nr(expand('<abuf>')),
\ expand('<amatch>')
\)
endif
augroup END
augroup ALERunOnSaveGroup
autocmd!
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if (g:ale_enabled && g:ale_lint_on_save) || g:ale_fix_on_save
autocmd BufWritePost * call ale#events#SaveEvent(str2nr(expand('<abuf>')))
endif
augroup END
augroup ALERunOnInsertLeave
autocmd!
if g:ale_enabled && g:ale_lint_on_insert_leave
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autocmd InsertLeave * call ale#Queue(0)
endif
augroup END
augroup ALECursorGroup
autocmd!
if g:ale_enabled && g:ale_echo_cursor
autocmd CursorMoved,CursorHold * call ale#cursor#EchoCursorWarningWithDelay()
" Look for a warning to echo as soon as we leave Insert mode.
" The script's position variable used when moving the cursor will
" not be changed here.
autocmd InsertLeave * call ale#cursor#EchoCursorWarning()
endif
augroup END
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if !g:ale_enabled
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if !g:ale_fix_on_save
augroup! ALERunOnSaveGroup
endif
augroup! ALEPatternOptionsGroup
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augroup! ALERunOnTextChangedGroup
augroup! ALERunOnEnterGroup
augroup! ALERunOnInsertLeave
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augroup! ALECursorGroup
endif
endfunction
function! s:ALEToggle() abort
let g:ale_enabled = !get(g:, 'ale_enabled')
if g:ale_enabled
" Set pattern options again, if enabled.
if g:ale_pattern_options_enabled
call ale#pattern_options#SetOptions()
endif
" Lint immediately, including running linters against the file.
call ale#Queue(0, 'lint_file')
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if g:ale_set_balloons
call ale#balloon#Enable()
endif
else
for l:key in keys(g:ale_buffer_info)
" The key could be a filename or a buffer number, so try and
" convert it to a number. We need a number for the other
" functions.
let l:buffer = str2nr(l:key)
if l:buffer > 0
" Stop all jobs and clear the results for everything, and delete
" all of the data we stored for the buffer.
call ale#engine#Cleanup(l:buffer)
endif
endfor
" Remove highlights for the current buffer now.
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if g:ale_set_highlights
call ale#highlight#UpdateHighlights()
endif
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if g:ale_set_balloons
call ale#balloon#Disable()
endif
endif
call ALEInitAuGroups()
endfunction
call ALEInitAuGroups()
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if g:ale_set_balloons
call ale#balloon#Enable()
endif
if g:ale_completion_enabled
call ale#completion#Enable()
endif
" Define commands for moving through warnings and errors.
command! -bar ALEPrevious :call ale#loclist_jumping#Jump('before', 0)
command! -bar ALEPreviousWrap :call ale#loclist_jumping#Jump('before', 1)
command! -bar ALENext :call ale#loclist_jumping#Jump('after', 0)
command! -bar ALENextWrap :call ale#loclist_jumping#Jump('after', 1)
command! -bar ALEFirst :call ale#loclist_jumping#JumpToIndex(0)
command! -bar ALELast :call ale#loclist_jumping#JumpToIndex(-1)
" A command for showing error details.
command! -bar ALEDetail :call ale#cursor#ShowCursorDetail()
" Define commands for turning ALE on or off.
command! -bar ALEToggle :call s:ALEToggle()
command! -bar ALEEnable :if !g:ale_enabled | ALEToggle | endif
command! -bar ALEDisable :if g:ale_enabled | ALEToggle | endif
" A command for linting manually.
command! -bar ALELint :call ale#Queue(0, 'lint_file')
" Define a command to get information about current filetype.
command! -bar ALEInfo :call ale#debugging#Info()
" The same, but copy output to your clipboard.
command! -bar ALEInfoToClipboard :call ale#debugging#InfoToClipboard()
" Fix problems in files.
command! -bar ALEFix :call ale#fix#Fix()
" Suggest registered functions to use for fixing problems.
command! -bar ALEFixSuggest :call ale#fix#registry#Suggest(&filetype)
" <Plug> mappings for commands
nnoremap <silent> <Plug>(ale_previous) :ALEPrevious<Return>
nnoremap <silent> <Plug>(ale_previous_wrap) :ALEPreviousWrap<Return>
nnoremap <silent> <Plug>(ale_next) :ALENext<Return>
nnoremap <silent> <Plug>(ale_next_wrap) :ALENextWrap<Return>
nnoremap <silent> <Plug>(ale_first) :ALEFirst<Return>
nnoremap <silent> <Plug>(ale_last) :ALELast<Return>
nnoremap <silent> <Plug>(ale_toggle) :ALEToggle<Return>
nnoremap <silent> <Plug>(ale_lint) :ALELint<Return>
nnoremap <silent> <Plug>(ale_detail) :ALEDetail<Return>
nnoremap <silent> <Plug>(ale_fix) :ALEFix<Return>
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" Housekeeping
augroup ALECleanupGroup
autocmd!
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" Clean up buffers automatically when they are unloaded.
autocmd BufUnload * call ale#engine#Cleanup(str2nr(expand('<abuf>')))
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autocmd QuitPre * call ale#events#QuitEvent(str2nr(expand('<abuf>')))
augroup END
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" Backwards Compatibility
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function! ALELint(delay) abort
call ale#Queue(a:delay)
endfunction
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function! ALEGetStatusLine() abort
return ale#statusline#Status()
endfunction