feat: add autoimport fixer

autoload/ale/fix/registry.vim

@@ -12,6 +12,11 @@ let s:default_registry = {
 \       'suggested_filetypes': ['help'],
 \       'description': 'Align help tags to the right margin',
 \   },
+\   'autoimport': {
+\       'function': 'ale#fixers#autoimport#Fix',
+\       'suggested_filetypes': ['python'],
+\       'description': 'Fix import issues with autoimport.',
+\   },
 \   'autopep8': {
 \       'function': 'ale#fixers#autopep8#Fix',
 \       'suggested_filetypes': ['python'],

autoload/ale/fixers/autoimport.vim

@@ -0,0 +1,25 @@
+" Author: lyz-code
+" Description: Fixing Python imports with autoimport.
+
+call ale#Set('python_autoimport_executable', 'autoimport')
+call ale#Set('python_autoimport_options', '')
+call ale#Set('python_autoimport_use_global', get(g:, 'ale_use_global_executables', 0))
+
+function! ale#fixers#autoimport#Fix(buffer) abort
+    let l:options = ale#Var(a:buffer, 'python_autoimport_options')
+
+    let l:executable = ale#python#FindExecutable(
+    \   a:buffer,
+    \   'python_autoimport',
+    \   ['autoimport'],
+    \)
+
+    if !executable(l:executable)
+        return 0
+    endif
+
+    return {
+    \   'command': ale#path#BufferCdString(a:buffer)
+    \   .   ale#Escape(l:executable) . (!empty(l:options) ? ' ' . l:options : '') . ' -',
+    \}
+endfunction