added some functions for git

.gitconfig

@@ -22,6 +22,8 @@
         purge-last-commit = reset --hard HEAD~1
         pushdetachedhead = push origin HEAD:master
         getbranchauthor = "!f() { git for-each-ref --format='%(committerdate) %09 %(authorname) %09 %(refname)' | sort -k5n -k2M -k3n -k4n; }; f"
+        grepp = grep --break --heading --line-number
+        grephist = "!f() { regex=$1; git grep --break --heading --line-number -e $regex $(git rev-list --all); }; f"
 [merge]
 	conflictstyle = diff3
 	tool = vimdiff