Add new fixer tslint for typescript, fixes #932

autoload/ale/fix/registry.vim

@@ -102,6 +102,11 @@ let s:default_registry = {
 \       'suggested_filetypes': ['go'],
 \       'description': 'Fix Go files with go fmt.',
 \   },
+\   'tslint': {
+\       'function': 'ale#fixers#tslint#Fix',
+\       'suggested_filetypes': ['typescript'],
+\       'description': 'Fix typescript files with tslint --fix.',
+\   },
 \}
 
 " Reset the function registry to the default entries.

autoload/ale/fixers/tslint.vim

@@ -0,0 +1,22 @@
+" Author: carakan <carakan@gmail.com>
+" Description: Fixing files with tslint.
+
+function! ale#fixers#tslint#Fix(buffer) abort
+    let l:executable = ale_linters#typescript#tslint#GetExecutable(a:buffer)
+
+    let l:tslint_config_path = ale#path#ResolveLocalPath(
+    \   a:buffer,
+    \   'tslint.json',
+    \   ale#Var(a:buffer, 'typescript_tslint_config_path')
+    \)
+    let l:tslint_config_option = !empty(l:tslint_config_path)
+    \   ? ' -c ' . ale#Escape(l:tslint_config_path)
+    \   : ''
+
+    return {
+    \   'command': ale#node#Executable(a:buffer, l:executable)
+    \       . l:tslint_config_option
+    \       . ' --fix %t',
+    \   'read_temporary_file': 1,
+    \}
+endfunction

test/fixers/test_tslint_fixer_callback.vader

@@ -0,0 +1,41 @@
+Before:
+  Save g:ale_typescript_tslint_executable
+  Save g:ale_typescript_tslint_config_path
+
+  let g:ale_typescript_tslint_executable = 'xxxinvalid'
+  let g:ale_typescript_tslint_config_path = ''
+
+  call ale#test#SetDirectory('/testplugin/test/fixers')
+  silent cd ..
+  silent cd command_callback
+  let g:dir = getcwd()
+
+After:
+  Restore
+
+  call ale#test#RestoreDirectory()
+
+Execute(The tslint callback should return the correct default values):
+  call ale#test#SetFilename('../prettier-test-files/testfile.ts')
+
+  AssertEqual
+  \ {
+  \   'read_temporary_file': 1,
+  \   'command': ale#Escape(g:ale_typescript_tslint_executable)
+  \     . ' -c tslint.json'
+  \     . ' --fix %t',
+  \ },
+  \ ale#fixers#tslint#Fix(bufnr(''))
+
+Execute(The tslint callback should include custom tslint config option):
+  let g:ale_typescript_tslint_config_path = '.tslintrc'
+  call ale#test#SetFilename('../prettier-test-files/testfile.ts')
+
+  AssertEqual
+  \ {
+  \   'read_temporary_file': 1,
+  \   'command': ale#Escape(g:ale_typescript_tslint_executable)
+  \     . ' -c ' . ale#Escape(g:ale_typescript_tslint_config_path)
+  \     . ' --fix %t',
+  \ },
+  \ ale#fixers#tslint#Fix(bufnr(''))