feat: Add ALE fixer for astyle

autoload/ale/fixers/astyle.vim

@@ -0,0 +1,14 @@
+" Author: James Kim <jhlink@users.noreply.github.com>
+" Description: Fix C/C++ files with astyle.
+
+call ale#Set('c_astyle_executable', 'astyle')
+
+function! ale#fixers#astyle#Fix(buffer) abort
+    let l:executable = ale#Var(a:buffer, 'c_astyle_executable')
+
+    return {
+    \   'command': ale#Escape(l:executable)
+    \       . ' %t',
+    \   'read_temporary_file': 1,
+    \}
+endfunction