Start github-linguist rewrite

build.py

@@ -0,0 +1,43 @@
+#!/usr/bin/env python3
+
+import yaml
+import urllib.request as request
+
+url = 'https://raw.githubusercontent.com/github/linguist/master/lib/linguist/languages.yml'
+data = yaml.safe_load(request.urlopen(url))
+
+lines = []
+
+def language(name,
+             filetype=None,
+             polyglot=None,
+             extensions=None,
+             filenames=None,
+             extra_extensions=[],
+             extra_filenames=[]
+):
+    language = data.get(name, {})
+    filetype_name = filetype or name.lower().replace(" ", "")
+    polyglot_name = polyglot or filetype_name
+    lines.append(f"if index(g:polyglot_disabled, '{polyglot_name}') == -1")
+    for ext in (extensions or language.get("extensions", [])) + extra_extensions:
+        lines.append(f"  au BufNewFile,BufRead *{ext} set ft={filetype_name}")
+    for fn in (filenames or language.get("filenames", [])) + extra_filenames:
+        lines.append(f"  au BufNewFile,BufRead {fn} set ft={filetype_name}")
+    lines.append("endif")
+    lines.append("")
+
+language("ASL", polyglot="acpiasl", extensions=[".asl", ".dsl"])
+language("API Blueprint")
+language("AppleScript")
+language("Processing", filetype="arduino", extra_extensions=[".ino"])
+language("AsciiDoc")
+language("Blade")
+language("Caddyfile", extensions=["Caddyfile"])
+language("Carp", extensions=[".carp"])
+language("CoffeeScript", filetype="coffee")
+language("Clojure")
+
+f = open("ftdetect/polyglot_auto.vim", "w")
+f.write("\n".join(lines))
+f.close()