From 1ceae9ed8d6766cbe5c8d2c683ac8ebdda2c3f8f Mon Sep 17 00:00:00 2001
From: Rudolf Polzer <divverent@alientrap.org>
Date: Thu, 29 Mar 2012 13:36:59 +0200
Subject: [PATCH] new repos library file, not used yet, meant to replace the
 old mess

---
 misc/tools/all/repos.subr | 130 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 130 insertions(+)
 create mode 100644 misc/tools/all/repos.subr

diff --git a/misc/tools/all/repos.subr b/misc/tools/all/repos.subr
new file mode 100644
index 00000000..aa77bb3f
--- /dev/null
+++ b/misc/tools/all/repos.subr
@@ -0,0 +1,130 @@
+allmirrors()
+{
+	"$@" git '' git://git.xonotic.org/xonotic/ ''
+	"$@" http '' http://git.xonotic.org/xonotic/ ''
+	"$@" ssh '' ssh://xonotic@git.xonotic.org/ ''
+
+	"$@" ssh push ssh://xonotic@push.git.xonotic.org/ ''
+
+	"$@" git de git://de.git.xonotic.org/xonotic/ ''
+	"$@" http de http://de.git.xonotic.org/xonotic/ ''
+
+	"$@" git nl git://nl.git.xonotic.org/xonotic/ '*3/2'
+	"$@" http nl http://nl.git.xonotic.org/xonotic/ '*3/2'
+
+	"$@" git us git://us.git.xonotic.org/xonotic/ ''
+	"$@" http us http://us.git.xonotic.org/xonotic/ ''
+}
+
+allrepos()
+{
+	"$@" .                             xonotic.git                  master         ""
+	"$@" data/xonotic-data.pk3dir      xonotic-data.pk3dir.git      master         ""
+	"$@" data/xonotic-music.pk3dir     xonotic-music.pk3dir.git     master         ""
+	"$@" data/xonotic-nexcompat.pk3dir xonotic-nexcompat.pk3dir.git master         "no"
+	"$@" darkplaces                    darkplaces.git               div0-stable    "svn"
+	"$@" netradiant                    netradiant.git               master         ""
+	"$@" div0-gittools                 div0-gittools.git            master         "no"
+	"$@" d0_blind_id                   d0_blind_id.git              master         ""
+	"$@" data/xonotic-maps.pk3dir      xonotic-maps.pk3dir.git      master         ""
+	"$@" mediasource                   mediasource.git              master         "no"
+	"$@" fteqcc                        fteqcc.git                   xonotic-stable "noautocrlf"
+}
+
+mirrorspeed()
+{
+	if ! { time -p true; } >/dev/null 2>&1; then
+		echo 0
+		return
+	fi
+	# first result is to be ignored, but we use it to check status
+	git ls-remote "$1" refs/heads/master >/dev/null 2>&1 || return 1
+	# now actually time it
+	(
+		set +x
+		{ time -p git ls-remote "$1" refs/heads/master; } 2>&1 >/dev/null | head -n 1 | cut -d ' ' -f 2 | tr -d . | sed 's,^0*,,' | grep . || echo 0
+			# unit: clock ticks (depends on what "time" returns
+	)
+}
+bestmirror()
+{
+	oldurl="$1"
+	newprotocol="$2"
+	newlocation="$3"
+	oldprotocol=
+	oldlocation=
+	testrepo=
+	bestmirror_firstrepo()
+	{
+		if [ -z "$testrepo" ]; then
+			testrepo=$2
+		fi
+	}
+	allrepos bestmirror_firstrepo
+	bestmirror_findold()
+	{
+		if [ x"$oldurl" = x"$3" ]; then
+			oldprotocol=$1
+			oldlocation=$2
+		fi
+	}
+	allmirrors bestmirror_findold
+	besturl=
+	bestlocation=
+	besttime=
+	bestcount=
+	bestmirror_benchmark()
+	{
+		if [ -z "$2" ]; then
+			# empty location is not allowed
+			return
+		fi
+		if [ x"$1" != x"$newprotocol" ]; then
+			return
+		fi
+		# only working mirrors
+		if ! thistime=`mirrorspeed "$3$testrepo"`; then
+			return
+		fi
+		thistime=$(($thistime $4))
+		# anything is better than nothing
+		if [ -z "$besttime" ]; then
+			besturl=$3
+			bestlocation=$2
+			besttime=$thistime
+			bestcount=1
+			return
+		fi
+		# prefer location match
+		if [ x"$2" = x"$newlocation" ]; then
+			if [ x"$bestlocation" != x"$newlocation" ]; then
+				besturl=$3
+				bestlocation=$2
+				besttime=$thistime
+				bestcount=1
+				return
+			fi
+		else
+			if [ x"$bestlocation" = x"$newlocation" ]; then
+				return
+			fi
+		fi
+		# if we get here, we must compare mirror speed as we have more than one match
+		if [ $thistime -gt $besttime ]; then
+			return
+		elif [ $thistime -lt $besttime ]; then
+			besturl=$3
+			besttime=$thistime
+			bestcount=1
+			return
+		fi
+		# both location and time match. Random decision.
+		bestcount=$(($bestcount + 1))
+		if [ $((($RANDOM + 0) % $bestcount)) -eq 0 ]; then
+			besturl=$3
+		fi
+	}
+	allmirrors bestmirror_benchmark
+	echo "$besturl"
+}
+
-- 
2.39.2