git blame across the entire codebase
A few years ago, a script showed up on the git mailing list that would effectively run "git blame" across the entire tree, and aggregate the line counts by author. Here's the first 50 authors as of commit 86714aaae213175ea8c716ad22c1e10300d5bf61:
Total lines: 2200186
516667 23.48% Jarkko Hietaniemi
205425 9.34% Karl Williamson
200933 9.13% Chris 'BinGOs' Williams
145825 6.63% Nicholas Clark
86205 3.92% Rafael Garcia-Suarez
82823 3.76% Gurusamy Sarathy
57861 2.63% Larry Wall
53781 2.44% Steve Peters
49052 2.23% Paul Marquess
46528 2.11% Perl 5 Porters
45927 2.09% Father Chrysostomos
40271 1.83% Sullivan Beck
34158 1.55% Steve Hay
28840 1.31% David Mitchell
28330 1.29% David Golden
27898 1.27% Ricardo Signes
27055 1.23% Nick Ing-Simmons
25204 1.15% Ilya Zakharevich
23394 1.06% Marcus Holland-Moritz
18139 0.82% Yves Orton
16877 0.77% Andy Dougherty
16330 0.74% Steffen Mueller
16202 0.74% Michael G. Schwern
15076 0.69% Zefram
14224 0.65% Brian Fraser
13507 0.61% Dave Mitchell
13494 0.61% Dan Kogai
13257 0.60% H.Merijn Brand
10307 0.47% Jerry D. Hedden
9667 0.44% Tels
9443 0.43% Jesse Vincent
8610 0.39% Andreas Koenig
8266 0.38% Craig A. Berry
7453 0.34% Abhijit Menon-Sen
7328 0.33% Hugo van der Sanden
7051 0.32% Vadim Konovalov
7016 0.32% Jim Cromie
6946 0.32% Tom Christiansen
6648 0.30% John E. Malmberg
6305 0.29% Shlomi Fish
6276 0.29% Abigail
5917 0.27% Radu Greab
5877 0.27% Yitzchak Scott-Thoennes
5860 0.27% Jos I. Boumans
5558 0.25% Marc Green
5472 0.25% Paul Fenwick
5323 0.24% Dave Rolsky
5240 0.24% Jan Dubois
5138 0.23% Andy Lester
5089 0.23% Tony Cook
print "Just another Perl hacker"; # the original!
28840 1.31% David Mitchell
13507 0.61% Dave Mitchell
Is it two different people with a similar name or the same person under two different names?
And what about linking your post to that script?