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

Answer 1

Note that, if your repo is on GitHub, you now (May 2013) have a new set of GitHub API to get interesting statistics.
See "File CRUD and repository statistics now available in the API"

That would include:

• Contributors
• Commit Activity
• Code Frequency
• Participation
• Punch Card

Answer 2

Here is a simple ruby script that I used to get author, lines added, lines removed, and commit count from git. It does not cover commits over time.

Note that I have a trick where it ignores any commit that adds/removes more than 10,000 lines because I assume that this is a code import of some sort, feel free to modify the logic for your needs. You can put the below into a file called gitstats-simple.rb and then run

git log --numstat --pretty='%an' | ruby gitstats-simple.rb

contents of gitstats-simple.rb

#!/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
  next if parts.size == 0
  if parts[0].match(/[a-z]+/)
    if who && memo[0] + memo[1] < 2000
      map[who][0] += memo[0]
      map[who][1] += memo[1]
      map[who][2] += 1
    end
    who = parts[0]
    memo = [0,0]
    next
  end
  if who
    memo[0]+=line[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

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 4

I've written a small shell script that calculates merge statistics (useful when dealing with a feature-branch-based workflow). Here's an example output on a small repository:

[$]> git merge-stats
% of Total Merges               Author  # of Merges  % of Commits
            57.14     Daniel Beardsley            4          5.63
            42.85        James Pearson            3         30.00

Answer 5

The best tool so far I identfied is gitinspector. It give the set report per user, per week etc

You can install like below with npm

npm install -g gitinspector

Details to get the links are below

https://www.npmjs.com/package/gitinspector
https://github.com/ejwa/gitinspector/wiki/Documentation
https://github.com/ejwa/gitinspector

example commands are

gitinspector -lmrTw
gitinspector --since=1-1-2017

etc

Answer 6

See this gitstat project

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