From: Junio C Hamano <gitster@pobox.com>
Date: Wed, 3 Feb 2010 07:12:24 +0000 (-0800)
Subject: Script to count contributors and commits per development cycle
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ece251b6407cf83959e595c3057c4f23b418dbb3;p=thirdparty%2Fgit.git

Script to count contributors and commits per development cycle
---

diff --git a/count-contributors.sh b/count-contributors.sh
new file mode 100755
index 0000000000..4ee57f57f8
--- /dev/null
+++ b/count-contributors.sh
@@ -0,0 +1,73 @@
+#!/bin/sh
+
+LC_ALL=C LANG=C
+export LC_ALL LANG
+
+fmt="%-10s | %7d %7d %7d | %7d %7d | %-10s\n"
+hfmt=$(printf "%s" "$fmt" | sed -e 's/d/s/g')
+head=$(printf "$hfmt" release new this total this total date)
+
+old= ocommitcnt=
+git for-each-ref --format='%(refname:short)' refs/tags/ |
+perl -w -e '
+	use strict;
+	my @version = ();
+	my %asked = map { $_ => $_ } @ARGV;
+
+	while (<STDIN>) {
+		next unless (/^(v(\d+)\.(\d+)(?:\.(\d+))?(?:-rc(\d+))?)$/);
+		# $1 = tag == v$2.$3(.$4)?(-rc$5)?
+
+		if (exists $asked{$1}) {
+			; # ok
+		} elsif (defined $5) {
+			# skip -rc releases
+			next;
+		} elsif ($2 == 0) {
+			# not worth showing breakdown during v0.99 period
+			next unless ($1 eq "v0.99");
+		} elsif ($2 == 1) {
+			# not worth showing breakdown before v1.4.0
+			next if ($3 < 4 && $4);
+		}
+		push @version, [$1, $2, $3, $4, $5];
+	}
+	for (sort { (
+		$a->[1] <=> $b->[1] ||
+		$a->[2] <=> $b->[2] ||
+		$a->[3] <=> $b->[3] ||
+		( (defined $a->[4] && defined $b->[4])
+		  ? $a->[4] <=> $b->[4]
+		  : defined $a->[4]
+		  ? -1 : 1 ) ); } @version) {
+		print $_->[0], "\n";
+	}
+' "$@" |
+while read new
+do
+	commitcnt=$(git rev-list --no-merges "$new" | wc -l)
+	git shortlog -s -n "$new" |
+	sed -e 's/^[ 	0-9]*//' |
+	sort >/var/tmp/new
+	if test -n "$old"
+	then
+		comm -13 /var/tmp/old /var/tmp/new >"/var/tmp/cont-$new"
+		i=$(git shortlog -s -n "$old..$new" |
+			sed -e 's/^[ 	0-9]*//' |
+			wc -l)
+		cc=$(( $commitcnt - $ocommitcnt ))
+	else
+		i=$(wc -l </var/tmp/new)
+		cat /var/tmp/new >"/var/tmp/cont-$new"
+		cc=$(( $commitcnt + 0 ))
+	fi
+	old=$new
+	mv /var/tmp/new /var/tmp/old
+	n=$(wc -l <"/var/tmp/cont-$new")
+	c=$(wc -l <"/var/tmp/old")
+	t=$(git show -s --format="%ci" "$old^0" | sed -e "s/ .*//")
+	ocommitcnt=$commitcnt
+	test -z "$head" || echo "$head"
+	printf "$fmt" $new $n $i $c $cc $commitcnt $t
+	head=
+done