I broke up with neovim....vim is my best friend now

dot_vim/plugged/ale/ale_linters/rust/analyzer.vim

@@ -0,0 +1,36 @@
+" Author: Jon Gjengset <jon@thesquareplanet.com>
+" Description: The next generation language server for Rust
+
+call ale#Set('rust_analyzer_executable', 'rust-analyzer')
+call ale#Set('rust_analyzer_config', {})
+
+function! ale_linters#rust#analyzer#GetCommand(buffer) abort
+    return '%e'
+endfunction
+
+function! ale_linters#rust#analyzer#GetProjectRoot(buffer) abort
+    " Try to find nearest Cargo.toml for cargo projects
+    let l:cargo_file = ale#path#FindNearestFile(a:buffer, 'Cargo.toml')
+
+    if !empty(l:cargo_file)
+        return fnamemodify(l:cargo_file, ':h')
+    endif
+
+    " Try to find nearest rust-project.json for non-cargo projects
+    let l:rust_project = ale#path#FindNearestFile(a:buffer, 'rust-project.json')
+
+    if !empty(l:rust_project)
+        return fnamemodify(l:rust_project, ':h')
+    endif
+
+    return ''
+endfunction
+
+call ale#linter#Define('rust', {
+\   'name': 'analyzer',
+\   'lsp': 'stdio',
+\   'initialization_options': {b -> ale#Var(b, 'rust_analyzer_config')},
+\   'executable': {b -> ale#Var(b, 'rust_analyzer_executable')},
+\   'command': function('ale_linters#rust#analyzer#GetCommand'),
+\   'project_root': function('ale_linters#rust#analyzer#GetProjectRoot'),
+\})