Add tflint fot Terraform

ale_linters/terraform/tflint.vim

@@ -0,0 +1,61 @@
+" Author: Nat Williams <nat.williams@gmail.com>
+" Description: tflint for Terraform files
+"
+" See: https://www.terraform.io/
+"      https://github.com/wata727/tflint
+
+call ale#Set('terraform_tflint_options', '')
+call ale#Set('terraform_tflint_executable', 'tflint')
+
+function! ale_linters#terraform#tflint#Handle(buffer, lines) abort
+    let l:output = []
+
+    for l:error in ale#util#FuzzyJSONDecode(a:lines, [])
+        if l:error.type is# 'ERROR'
+            let l:type = 'E'
+        elseif l:error.type is# 'NOTICE'
+            let l:type = 'I'
+        else
+            let l:type = 'W'
+        endif
+
+        call add(l:output, {
+        \   'lnum': l:error.line,
+        \   'text': l:error.message,
+        \   'type': l:type,
+        \})
+    endfor
+
+    return l:output
+endfunction
+
+function! ale_linters#terraform#tflint#GetExecutable(buffer) abort
+    return ale#Var(a:buffer, 'terraform_tflint_executable')
+endfunction
+
+function! ale_linters#terraform#tflint#GetCommand(buffer) abort
+    let l:cmd = ale#Escape(ale#Var(a:buffer, 'terraform_tflint_executable'))
+
+    let l:config_file = ale#path#FindNearestFile(a:buffer, '.tflint.hcl')
+    if !empty(l:config_file)
+        let l:cmd .= ' --config ' . ale#Escape(l:config_file)
+    endif
+
+    let l:opts = ale#Var(a:buffer, 'terraform_tflint_options')
+    if !empty(l:opts)
+        let l:cmd .= ' ' . l:opts
+    endif
+
+    let l:cmd .= ' -f json'
+
+    return l:cmd
+endfunction
+
+call ale#linter#Define('terraform', {
+\   'name': 'tflint',
+\   'executable_callback': 'ale_linters#terraform#tflint#GetExecutable',
+\   'command_callback': 'ale_linters#terraform#tflint#GetCommand',
+\   'callback': 'ale_linters#terraform#tflint#Handle',
+\})
+
+" vim:sw=4