Which Git commit stats are easy to pull

Question

Previously I have enjoyed TortoiseSvn's ability to generate simple commit stats for a given SVN repository. I wonder what is available in Git and am particularly interested in :

• Number of commits per user
• Number of lines changed per user
• activity over time (for instance aggregated weekly changes)

Any ideas?

Answer 1

Here are ways to get stats for a specific branch or two hashs.

key here is the ability to do HASH..HASH

Below I am using the first hash from a branch to the HEAD which is the end of that branch.

Show total commits in a branch

• git log FIRST_HASH..HEAD --pretty=oneline | wc -l
• Output 53

Show total commits per author

• git shortlog FIRST_HASH..HEAD -sne
• Output
• 24 Author Name
• 9 Author Name

Answer 2

Modify https://stackoverflow.com/a/18797915/3243930 . the output is much closed to the graph data of github.

#!/usr/bin/ruby

# takes the output of this on stdin: git log --numstat --prety='%an'

map = Hash.new{|h,k| h[k] = [0,0,0]}
who = nil
memo = nil
STDIN.read.split("\n").each do |line|
  parts = line.split("\t")
  next if parts.size == 0
  if parts[0].match(/[a-zA-Z]+|[^\u0000-\u007F]+/)
    if who
      map[who][0] += memo[0]
      map[who][1] += memo[1]
      if memo[0] > 0 || memo[1] > 0 
        map[who][2] += 1
      end
    end
    who = parts[0]
    memo = [0,0]
    next
  end
  if who
    memo[0]+=parts[0].to_i
    memo[1]+=parts[1].to_i
  end
end

puts map.to_a.map{|x| [x[0], x[1][0], x[1][1], x[1][2]]}.sort_by{|x| -x[1] - x[2]}.map{|x|x.inspect.gsub("[", "").gsub("]","")}.join("\n")

Answer 3

DataHero now makes it easy to pull in Github data and get stats. We use it internally to track our progress on each milestone.

https://datahero.com/partners/github/

How we use it internally: https://datahero.com/blog/2013/08/13/managing-github-projects-with-datahero/

Disclosure: I work for DataHero

Answer 4

See this gitstat project

http://mirror.celinuxforum.org/gitstat/

Answer 5

Actually, git already has a command for this:

git shortlog

in your case, it sounds like you're interested in this form:

git shortlog -sne

See the --help for various options.

You may also be interested in the GitStats project. They have a few examples, including the stats for the Git project. From the GitStat main page:

Here is a list of some statistics generated currently:

• General statistics: total files, lines, commits, authors.
• Activity: commits by hour of day, day of week, hour of week, month of year, year and month, and year.
• Authors: list of authors (name, commits (%), first commit date, last commit date, age), author of month, author of year.
• Files: file count by date, extensions
• Lines: Lines of Code by date

Answer 6

Thanks to hacker for answering this question. However, I found these modified versions to be better for my particular usage:

git log --pretty=format:%an \
| awk '{ ++c[$0]; } END { for(cc in c) printf "%5d %s\n",c[cc],cc; }'\
| sort -r

(using awk as I don't have gawk on my mac, and sorting with most active comitter on top.) It outputs a list like so:

 1205 therikss
 1026 lsteinth
  771 kmoes
  720 minielse
  507 pagerbak
  269 anjohans
  205 mfoldbje
  188 nstrandb
  133 pmoller
   58 jronn
   10 madjense
    3 nlindhol
    2 shartvig
    2 THERIKSS