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
execute 'echoerr ''ALE requires NeoVim >= 0.1.5 or Vim 8 with +timers +job +channel'''
execute 'echoerr ''Please update your editor appropriately.'''
endif
" Stop here, as it won't work.
finish
endif
if has('nvim') && !has('nvim-0.2.0') && !get(g:, 'ale_use_deprecated_neovim')
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execute 'echom ''ALE support for NeoVim versions below 0.2.0 is deprecated.'''
execute 'echom ''Use `let g:ale_use_deprecated_neovim = 1` to silence this warning for now.'''
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 option can be changed to only enable explicitly selected linters.
let g:ale_linters_explicit = get(g:, 'ale_linters_explicit', 0)
" 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)
" This flag can be set to 1 to enable automatically fixing files on save.
let g:ale_fix_on_save = get(g:, 'ale_fix_on_save', 0)
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" 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 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 0 to disable setting error highlights.
let g:ale_set_highlights = get(g:, 'ale_set_highlights', has('syntax'))
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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)
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" This flag can be set to 0 to disable balloon support.
let g:ale_set_balloons = get(g:, 'ale_set_balloons',
\ (has('balloon_eval') && has('gui_running'))
\ || (has('balloon_eval_term') && !has('gui_running'))
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\)
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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)
" This flag can be set to 0 to disable warnings for trailing blank lines
let g:ale_warn_about_trailing_blank_lines = get(g:, 'ale_warn_about_trailing_blank_lines', 1)
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" 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)
" Enable automatic completion with LSP servers and tsserver
let g:ale_completion_enabled = get(g:, 'ale_completion_enabled', 0)
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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 ale#toggle#Toggle()
command! -bar ALEEnable :call ale#toggle#Enable()
command! -bar ALEDisable :call ale#toggle#Disable()
command! -bar ALEReset :call ale#toggle#Reset()
" Commands for turning ALE on or off for a buffer.
command! -bar ALEToggleBuffer :call ale#toggle#ToggleBuffer(bufnr(''))
command! -bar ALEEnableBuffer :call ale#toggle#EnableBuffer(bufnr(''))
command! -bar ALEDisableBuffer :call ale#toggle#DisableBuffer(bufnr(''))
command! -bar ALEResetBuffer :call ale#toggle#ResetBuffer(bufnr(''))
" A command to stop all LSP-like clients, including tsserver.
command! -bar ALEStopAllLSPs :call ale#lsp#reset#StopAllLSPs()
" 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()
" Copy ALE information to a file.
command! -bar -nargs=1 ALEInfoToFile :call ale#debugging#InfoToFile(<f-args>)
" Fix problems in files.
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command! -bar -nargs=* -complete=customlist,ale#fix#registry#CompleteFixers ALEFix :call ale#fix#Fix(bufnr(''), '', <f-args>)
" Suggest registered functions to use for fixing problems.
command! -bar ALEFixSuggest :call ale#fix#registry#Suggest(&filetype)
" Go to definition for tsserver and LSP
command! -bar ALEGoToDefinition :call ale#definition#GoTo({})
command! -bar ALEGoToDefinitionInTab :call ale#definition#GoTo({'open_in_tab': 1})
" Find references for tsserver and LSP
command! -bar ALEFindReferences :call ale#references#Find()
" Get information for the cursor.
TUI / GUI tooltip with content from ALEHover (#1556) * Guard the ballooneval settings * Mark main objectives to do to get nice Hover * Make tweaks to make the tooltip work - See " XXX: comments * Guard balloon_show call * Use return instead of finish for functions * ale#hover#show : Add optional arguments to specify arbtirary position This change is requested to be able to call the function with mouse position to enable hover information in vim's balloon * ale#ballon#Disable : Remove feature guards * ale#balloon : Show 'ALEHover' output on balloon if no diagnostic found * ale#hover#HandleLSPResponse : remove the check for cursor position This check prevented the 'ALEHover in balloon' feature, since mouse position is almost never cursor position. * ale#balloon#MessageForPos : Change the return of balloonexpr balloonexpr evaluation now works even without balloon_show for basic diagnostics, leaving the balloon_show call to ale#hover#Show, which can then feature guard the call to avoid errors * ale#hover#Response : Feature guard balloon_show calls * ale#hover : always display 'Hover' information in messages Also add a small comment to warn readers the different outputs the ale#hover#Show will write to * {LSP,TS}Response : use only variables from the Response It is clearer that we only rely on l:options to get the relevant data to build the LSP Response string * hover#ShowDetails : fix an issue where not having focus broke balloons The issue was caused by not using a buffer-specific version of getline() to cap the value of the column sent in the message to LSP. Therefore a cursor on column 10 in an inactive window could send a message with column=0, if the active window had a buffer with too few lines * {LSP,TS}Response : Remove redundant checks for balloon_show call With the upcoming change in ale_set_balloons default value (see Pull Request w0rp/ale#1565), this check will be useless * balloonexpr? : Add a flag to separate hover#Show() calls The goal of this flag is to make `:ALEHover` calls not pop a balloon under the cursor, since the user has probably no interest in their cursor while typing the command The flag is a default argument which is overridden only in ballonexpr call of ale#hover#Show, and stays set in the hover_map until the callback for the LSP handles it. There are no automated tests for this feature right now, and the nature of the addition (one optional argument in the API) should make it transparent to existing tests. Since the differentiation is now possible, the check for moved cursor has been put back in ale#hover#HandleLSPResponse * ale#hover#hover_map : Protect accesses to hover_map Using get() is safer than trying to access directly with ., as the tests show. * Raise timeout to try to get Appveyor happy * Review : Fix comments * Review : pass the optional argument 'called_from_balloonexpr' in a Dict This optional dictionary has documentation just before the function using it, ale#hover#Show, and allows easier extension in the future.
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command! -bar ALEHover :call ale#hover#Show(bufnr(''), getcurpos()[1],
\ getcurpos()[2], {})
" <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_enable) :ALEEnable<Return>
nnoremap <silent> <Plug>(ale_disable) :ALEDisable<Return>
nnoremap <silent> <Plug>(ale_reset) :ALEReset<Return>
nnoremap <silent> <Plug>(ale_toggle_buffer) :ALEToggleBuffer<Return>
nnoremap <silent> <Plug>(ale_enable_buffer) :ALEEnableBuffer<Return>
nnoremap <silent> <Plug>(ale_disable_buffer) :ALEDisableBuffer<Return>
nnoremap <silent> <Plug>(ale_reset_buffer) :ALEResetBuffer<Return>
nnoremap <silent> <Plug>(ale_lint) :ALELint<Return>
nnoremap <silent> <Plug>(ale_detail) :ALEDetail<Return>
nnoremap <silent> <Plug>(ale_fix) :ALEFix<Return>
nnoremap <silent> <Plug>(ale_go_to_definition) :ALEGoToDefinition<Return>
nnoremap <silent> <Plug>(ale_go_to_definition_in_tab) :ALEGoToDefinitionInTab<Return>
nnoremap <silent> <Plug>(ale_find_references) :ALEFindReferences<Return>
nnoremap <silent> <Plug>(ale_hover) :ALEHover<Return>
" Set up autocmd groups now.
call ale#autocmd#InitAuGroups()
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" Housekeeping
augroup ALECleanupGroup
autocmd!
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" Clean up buffers automatically when they are unloaded.
autocmd BufDelete * 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
if !get(g:, 'ale_deprecation_ale_lint', 0)
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execute 'echom ''ALELint() is deprecated, use ale#Queue() instead.'''
let g:ale_deprecation_ale_lint = 1
endif
call ale#Queue(a:delay)
endfunction
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function! ALEGetStatusLine() abort
if !get(g:, 'ale_deprecation_ale_get_status_line', 0)
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execute 'echom ''ALEGetStatusLine() is deprecated.'''
let g:ale_deprecation_ale_get_status_line = 1
endif
return ale#statusline#Status()
endfunction