Adding custom go-metalinter script

Only runs on files which have been modified.

.vimrc

@@ -114,9 +114,8 @@ au FileType go nmap <Leader>gl <Plug>(go-metalinter)
 let g:go_auto_type_info = 0
 let g:go_fmt_command = "goimports"
 let g:go_metalinter_autosave = 1
-let g:go_metalinter_autosave_enabled = ['vet', 'golint', 'errcheck', 'varcheck']
-let g:go_metalinter_enabled = ['vet', 'golint', 'errcheck', 'varcheck', 'aligncheck', 'ineffassign', 'gosimple', 'staticcheck']
-let g:go_metalinter_deadline = '10s'
+let g:go_metalinter_command = "git metalinter"
+
 
 " Python Support {{{1
 Plug 'klen/python-mode'

bin/git-metalint

@@ -0,0 +1,30 @@
+#!/usr/bin/python
+
+import subprocess
+import sys
+import os
+from os import path
+
+# Find the git root directory
+cwd = os.getcwd()
+while (".git" not in os.listdir(cwd)) and cwd != "/":
+    cwd = path.dirname(cwd)
+
+if cwd == "/":
+    print("Could not find the git repository root")
+    sys.exit(1)
+
+# Run the metalinter commands from the root directory
+os.chdir(cwd)
+
+files = subprocess.check_output(["git", "diff", "--name-only"])
+files_list = files.splitlines()
+
+if len(files_list) == 0:
+    sys.exit(0)
+
+dirs_list = map(path.dirname, files_list)
+dirs_list = set(dirs_list)
+
+for dir in dirs_list:
+    subprocess.call(["gometalinter", dir])