Revert "remove attrs"

This reverts commit 103138a.

Author: wangxufire

.gitattributes

@@ -0,0 +1,40 @@
+# All text files should have the "lf" (Unix) line endings
+* text eol=lf
+
+# Explicitly declare text files you want to always be normalized and converted
+# to native line endings on checkout.
+*.java text
+*.go text
+*.json text
+*.kt text
+*.css text
+*.sass text
+*.scss text
+*.less text
+*.xml text
+*.yml text
+*.yaml text
+*.properties text
+*.html text
+*.sh text
+*.md text
+*.txt text
+*.sql text
+*.gradle text
+*.service text
+*.bat text eol=crlf
+*.js text
+*.js linguist-language=Swift
+
+# Denote all files that are truly binary and should not be modified.
+*.png binary
+*.jpg binary
+*.jar binary
+*.pdf binary
+*.eot binary
+*.ttf binary
+*.gzip binary
+*.gz binary
+*.ai binary
+*.eps binary
+*.swf binary