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-rwxr-xr-xcontrib/stats/mailmap.pl38
1 files changed, 38 insertions, 0 deletions
diff --git a/contrib/stats/mailmap.pl b/contrib/stats/mailmap.pl
new file mode 100755
index 0000000..4b852e2
--- /dev/null
+++ b/contrib/stats/mailmap.pl
@@ -0,0 +1,38 @@
+#!/usr/bin/perl -w
+my %mailmap = ();
+open I, "<", ".mailmap";
+while (<I>) {
+ chomp;
+ next if /^#/;
+ if (my ($author, $mail) = /^(.*?)\s+<(.+)>$/) {
+ $mailmap{$mail} = $author;
+ }
+}
+close I;
+
+my %mail2author = ();
+open I, "git log --pretty='format:%ae %an' |";
+while (<I>) {
+ chomp;
+ my ($mail, $author) = split(/\t/, $_);
+ next if exists $mailmap{$mail};
+ $mail2author{$mail} ||= {};
+ $mail2author{$mail}{$author} ||= 0;
+ $mail2author{$mail}{$author}++;
+}
+close I;
+
+while (my ($mail, $authorcount) = each %mail2author) {
+ # %$authorcount is ($author => $count);
+ # sort and show the names from the most frequent ones.
+ my @names = (map { $_->[0] }
+ sort { $b->[1] <=> $a->[1] }
+ map { [$_, $authorcount->{$_}] }
+ keys %$authorcount);
+ if (1 < @names) {
+ for (@names) {
+ print "$_ <$mail>\n";
+ }
+ }
+}
+