Fix #257 in preparation for #427, standardise options with fallbacks, and make it so every value can be computed dynamically

ale_linters/c/cppcheck.vim

@@ -4,12 +4,16 @@
 " Set this option to change the cppcheck options
 let g:ale_c_cppcheck_options = get(g:, 'ale_c_cppcheck_options', '--enable=style')
 
+function! ale_linters#c#cppcheck#GetCommand(buffer) abort
+    return 'cppcheck -q --language=c '
+    \   . g:ale_c_cppcheck_options
+    \   . ' %t'
+endfunction
+
 call ale#linter#Define('c', {
 \   'name': 'cppcheck',
 \   'output_stream': 'both',
 \   'executable': 'cppcheck',
-\   'command': 'cppcheck -q --language=c '
-\       . g:ale_c_cppcheck_options
-\       . ' %t',
+\   'command_callback': 'ale_linters#c#cppcheck#GetCommand',
 \   'callback': 'ale#handlers#HandleCppCheckFormat',
 \})

ale_linters/elm/make.vim

@@ -62,4 +62,3 @@ call ale#linter#Define('elm', {
 \    'command_callback': 'ale_linters#elm#make#GetCommand',
 \    'callback': 'ale_linters#elm#make#Handle'
 \})
-

ale_linters/erlang/erlc.vim

@@ -5,6 +5,7 @@ let g:ale_erlang_erlc_options = get(g:, 'ale_erlang_erlc_options', '')
 function! ale_linters#erlang#erlc#GetCommand(buffer) abort
     let l:output_file = tempname()
     call ale#engine#ManageFile(a:buffer, l:output_file)
+
     return 'erlc -o ' . fnameescape(l:output_file) . ' ' . g:ale_erlang_erlc_options . ' %t'
 endfunction
 

ale_linters/fortran/gcc.vim

@@ -52,12 +52,16 @@ function! ale_linters#fortran#gcc#Handle(buffer, lines) abort
     return l:output
 endfunction
 
+function! ale_linters#fortran#gcc#GetCommand(buffer) abort
+    return 'gcc -S -x f95 -fsyntax-only -ffree-form '
+    \   . g:ale_fortran_gcc_options
+    \   . ' -'
+endfunction
+
 call ale#linter#Define('fortran', {
 \   'name': 'gcc',
 \   'output_stream': 'stderr',
 \   'executable': 'gcc',
-\   'command': 'gcc -S -x f95 -fsyntax-only -ffree-form '
-\       . g:ale_fortran_gcc_options
-\       . ' -',
+\   'command_callback': 'ale_linters#fortran#gcc#GetCommand',
 \   'callback': 'ale_linters#fortran#gcc#Handle',
 \})

ale_linters/html/tidy.vim

@@ -3,7 +3,9 @@
 
 " CLI options
 let g:ale_html_tidy_executable = get(g:, 'ale_html_tidy_executable', 'tidy')
-let g:ale_html_tidy_args = get(g:, 'ale_html_tidy_args', '-q -e -language en')
+" Look for the old _args variable first.
+let s:default_options = get(g:, 'ale_html_tidy_args', '-q -e -language en')
+let g:ale_html_tidy_options = get(g:, 'ale_html_tidy_options', s:default_options)
 
 function! ale_linters#html#tidy#GetCommand(buffer) abort
     " Specify file encoding in options
@@ -25,9 +27,13 @@ function! ale_linters#html#tidy#GetCommand(buffer) abort
 
     return printf('%s %s %s -',
     \   g:ale_html_tidy_executable,
-    \   g:ale_html_tidy_args,
+    \   g:ale_html_tidy_options,
     \   l:file_encoding
-    \ )
+    \)
+endfunction
+
+function! ale_linters#html#tidy#GetExecutable(buffer) abort
+    return g:ale_html_tidy_executable
 endfunction
 
 function! ale_linters#html#tidy#Handle(buffer, lines) abort
@@ -63,7 +69,7 @@ endfunction
 
 call ale#linter#Define('html', {
 \   'name': 'tidy',
-\   'executable': g:ale_html_tidy_executable,
+\   'executable_callback': 'ale_linters#html#tidy#GetExecutable',
 \   'output_stream': 'stderr',
 \   'command_callback': 'ale_linters#html#tidy#GetCommand',
 \   'callback': 'ale_linters#html#tidy#Handle',

ale_linters/lua/luacheck.vim

@@ -4,6 +4,15 @@
 let g:ale_lua_luacheck_executable =
 \   get(g:, 'ale_lua_luacheck_executable', 'luacheck')
 
+function! ale_linters#lua#luacheck#GetExecutable(buffer) abort
+    return g:ale_lua_luacheck_executable
+endfunction
+
+function! ale_linters#lua#luacheck#GetCommand(buffer) abort
+    return ale_linters#lua#luacheck#GetExecutable(a:buffer)
+    \   . ' --formatter plain --codes --filename %s -'
+endfunction
+
 function! ale_linters#lua#luacheck#Handle(buffer, lines) abort
     " Matches patterns line the following:
     "
@@ -33,7 +42,7 @@ endfunction
 
 call ale#linter#Define('lua', {
 \   'name': 'luacheck',
-\   'executable': g:ale_lua_luacheck_executable,
-\   'command': g:ale_lua_luacheck_executable . ' --formatter plain --codes --filename %s -',
+\   'executable_callback': 'ale_linters#lua#luacheck#GetExecutable',
+\   'command_callback': 'ale_linters#lua#luacheck#GetCommand',
 \   'callback': 'ale_linters#lua#luacheck#Handle',
 \})

ale_linters/nim/nimcheck.vim

@@ -1,7 +1,6 @@
 " Author: Baabelfish
 " Description: Typechecking for nim files
 
-
 function! ale_linters#nim#nimcheck#Handle(buffer, lines) abort
     let l:buffer_filename = fnamemodify(bufname(a:buffer), ':p:t')
     let l:pattern = '^\(.\+\.nim\)(\(\d\+\), \(\d\+\)) \(.\+\)'
@@ -52,7 +51,10 @@ endfunction
 
 
 function! ale_linters#nim#nimcheck#GetCommand(buffer) abort
-    return 'nim check --path:' . fnameescape(fnamemodify(bufname(a:buffer), ':p:h')) . ' --threads:on --verbosity:0 --colors:off --listFullPaths %t'
+    let l:directory = fnameescape(fnamemodify(bufname(a:buffer), ':p:h'))
+
+    return 'nim check --path:' . l:directory
+    \   . ' --threads:on --verbosity:0 --colors:off --listFullPaths %t'
 endfunction
 
 

ale_linters/nix/nix.vim

@@ -2,7 +2,6 @@
 " Description: nix-instantiate linter for nix files
 
 function! ale_linters#nix#nix#Handle(buffer, lines) abort
-
     let l:pattern = '^\(.\+\): \(.\+\), at .*:\(\d\+\):\(\d\+\)$'
     let l:output = []
 

ale_linters/php/phpmd.vim

@@ -4,6 +4,12 @@
 " Set to change the ruleset
 let g:ale_php_phpmd_ruleset = get(g:, 'ale_php_phpmd_ruleset', 'cleancode,codesize,controversial,design,naming,unusedcode')
 
+function! ale_linters#php#phpmd#GetCommand(buffer) abort
+    return 'phpmd %s text '
+    \   . g:ale_php_phpmd_ruleset
+    \   . ' --ignore-violations-on-exit %t'
+endfunction
+
 function! ale_linters#php#phpmd#Handle(buffer, lines) abort
     " Matches against lines like the following:
     "
@@ -33,6 +39,6 @@ endfunction
 call ale#linter#Define('php', {
 \   'name': 'phpmd',
 \   'executable': 'phpmd',
-\   'command': 'phpmd %s text ' . g:ale_php_phpmd_ruleset . ' --ignore-violations-on-exit %t',
+\   'command_callback': 'ale_linters#php#phpmd#GetCommand',
 \   'callback': 'ale_linters#php#phpmd#Handle',
 \})

ale_linters/python/flake8.vim

@@ -4,8 +4,10 @@
 let g:ale_python_flake8_executable =
 \   get(g:, 'ale_python_flake8_executable', 'flake8')
 
-let g:ale_python_flake8_args =
-\   get(g:, 'ale_python_flake8_args', '')
+" Support an old setting as a fallback.
+let s:default_options = get(g:, 'ale_python_flake8_args', '')
+let g:ale_python_flake8_options =
+\   get(g:, 'ale_python_flake8_options', s:default_options)
 
 " A map from Python executable paths to semver strings parsed for those
 " executables, so we don't have to look up the version number constantly.

ale_linters/python/mypy.vim

@@ -53,7 +53,7 @@ function! g:ale_linters#python#mypy#Handle(buffer, lines) abort
     return l:output
 endfunction
 
-call g:ale#linter#Define('python', {
+call ale#linter#Define('python', {
 \   'name': 'mypy',
 \   'executable': 'mypy',
 \   'command_callback': 'ale_linters#python#mypy#GetCommand',

ale_linters/sml/smlnj.vim

@@ -1,12 +1,6 @@
 " Author: Paulo Alem    <paulo.alem@gmail.com>
 " Description: Rudimentary SML checking with smlnj compiler
 
-if exists('g:loaded_ale_sml_smlnj_checker')
-    finish
-endif
-
-let g:loaded_ale_sml_smlnj_checker = 1
-
 function! ale_linters#sml#smlnj#Handle(buffer, lines) abort
     " Try to match basic sml errors
 

ale_linters/vim/vint.vim

@@ -5,20 +5,25 @@
 let g:ale_vim_vint_show_style_issues =
 \   get(g:, 'ale_vim_vint_show_style_issues', 1)
 
-let s:warning_flag = g:ale_vim_vint_show_style_issues ? '-s' : '-w'
 let s:vint_version = ale#semver#Parse(system('vint --version'))
 let s:has_no_color_support = ale#semver#GreaterOrEqual(s:vint_version, [0, 3, 7])
 let s:enable_neovim = has('nvim') ? ' --enable-neovim ' : ''
 let s:format = '-f "{file_path}:{line_number}:{column_number}: {severity}: {description} (see {reference})"'
 
+function! ale_linters#vim#vint#GetCommand(buffer) abort
+    let l:warning_flag = g:ale_vim_vint_show_style_issues ? '-s' : '-w'
+
+    return 'vint '
+    \   . l:warning_flag . ' '
+    \   . (s:has_no_color_support ? '--no-color ' : '')
+    \   . s:enable_neovim
+    \   . s:format
+    \   . ' %t'
+endfunction
+
 call ale#linter#Define('vim', {
 \   'name': 'vint',
 \   'executable': 'vint',
-\   'command': 'vint '
-\       . s:warning_flag . ' '
-\       . (s:has_no_color_support ? '--no-color ' : '')
-\       . s:enable_neovim
-\       . s:format
-\       . ' %t',
+\   'command_callback': 'ale_linters#vim#vint#GetCommand',
 \   'callback': 'ale#handlers#gcc#HandleGCCFormat',
 \})

custom-checks

@@ -71,5 +71,7 @@ check_errors ' \+$' 'Trailing whitespace'
 check_errors '^ * end\?i\? *$' 'Write endif, not en, end, or endi'
 check_errors '^  [^ ]' 'Use four spaces, not two spaces'
 check_errors $'\t' 'Use four spaces, not tabs'
+# This check should prevent people from using a particular inconsistent name.
+check_errors 'let g:ale_\w\+_\w\+_args =' 'Name your option g:ale_<filetype>_<lintername>_options instead'
 
 exit $RETURN_CODE

doc/ale-html.txt

@@ -47,7 +47,7 @@ g:ale_html_tidy_executable                         *g:ale_html_tidy_executable*
   This variable can be changed to change the path to tidy.
 
 
-g:ale_html_tidy_args                                     *g:ale_html_tidy_args*
+g:ale_html_tidy_options                               *g:ale_html_tidy_options*
 
   Type: |String|
   Default: `'-q -e -language en'`

doc/ale-python.txt

@@ -13,7 +13,7 @@ g:ale_python_flake8_executable                 *g:ale_python_flake8_executable*
   This variable can be changed to modify the executable used for flake8.
 
 
-g:ale_python_flake8_args                             *g:ale_python_flake8_args*
+g:ale_python_flake8_options                       *g:ale_python_flake8_options*
 
   Type: |String|
   Default: `''`
@@ -25,7 +25,7 @@ g:ale_python_flake8_args                             *g:ale_python_flake8_args*
   Python 3, you may want to set >
 
   let g:ale_python_flake8_executable = 'python3'   " or 'python' for Python 2
-  let g:ale_python_flake8_args = '-m flake8'
+  let g:ale_python_flake8_options = '-m flake8'
 <
   after making sure it's installed for the appropriate Python versions (e.g.
   `python3 -m pip install --user flake8`).