Cacher is the code snippet organizer for pro developers

# detailed stats for an individual 
git log --shortstat --author=AUTHOR --since=9-1-2013 --until=9-30-2013 | grep "files changed" | awk '{files+=$1; inserted+=$4; deleted+=$6} END {print "files changed: ", files, "\nlines inserted: ", inserted, "\nlines deleted: ", deleted}'
 
# commit numbers by author for the repo
git log --pretty=format:%an --since=10-1-2011 | awk '{ ++c[$0]; } END { for(cc in c) printf "%5d %s\n",c[cc],cc; }' | sort -r
 
# detailed stats per author, including contribution to the total change
git log --numstat --since=8-1-2014 --until=8-31-2014 | awk '
function printStats(author) {
  printf "%s:\n", author
  printf "  insertions: %d  (%.0f%%)\n", more[author], (more[author] / more["total"] * 100)
  printf "  deletions: %d  (%.0f%%)\n", less[author], (less[author] / less["total"] * 100)
  printf "  files: %d  (%.0f%%)\n", file[author], (file[author] / file["total"] * 100)
  printf "  commits: %d  (%.0f%%)\n", commits[author], (commits[author] / commits["total"] * 100)
}
 
/^Author:/ {
  author           = $2 " " $3
  commits[author] += 1
  commits["total"]  += 1
}
 
/^[0-9]/ {
  more[author] += $1
  less[author] += $2
  file[author] += 1
 
  more["total"]  += $1
  less["total"]  += $2
  file["total"]  += 1
}
 
END {
  for (author in commits) {
    if (author != "total") {
      printStats(author)
    }
  }
  printStats("total")
}'