Vendor include all legal files (#7480)

Author: gregwebs

hack/clean_vendor.sh

@@ -1,6 +1,15 @@
-find vendor \( -type f -or -type l \)  -not -name "*.go" -not -name "LICENSE" -not -name "*.s" -not -name "PATENTS" -not -name "*.h" -not -name "*.c" | xargs -I {} rm {}
-# delete all test files
+# delete internal vendor folders
+find vendor -type d -name "_vendor" | xargs -I {} rm -r {}
+# delete all files that are not go, c, h, or legal
+find vendor -type f -not -name "*.go" -not -name "NOTICE*" -not -name "COPYING*"  -not -name "LICENSE*" -not -name "*.s" -not -name "PATENTS*" -not -name "*.h" -not -name "*.c" | xargs -I {} rm {}
+# delete all generated files
 find vendor -type f -name "*_generated.go" | xargs -I {} rm {}
+# delete all test files
 find vendor -type f -name "*_test.go" | xargs -I {} rm {}
-find vendor -type d -name "_vendor" | xargs -I {} rm -rf {}
-find vendor -type d -empty | xargs -I {} rm -rf {}
+find vendor -type d -name "fixtures" | xargs -I {} rm -r {}
+# Delete documentation files. Keep doc.go.
+find vendor -type d -name "Documentation" | xargs -I {} rm -r {}
+find vendor -type d -name "tutorial" | xargs -I {} rm -r {}
+find vendor -name "*.md" | xargs -I {} rm {}
+# Delete unused languages
+find vendor -type d -name "ruby" | xargs -I {} rm -r {}