From 8d60e3109a47b62fc78815e8c3e54da84b038429 Mon Sep 17 00:00:00 2001
From: Rudolf Polzer <divverent@xonotic.org>
Date: Mon, 14 May 2012 15:31:07 +0200
Subject: [PATCH] add a conflict detector that outputs to per-branchowner RSS
 feeds

---
 misc/tools/conflict-rss.sh | 126 +++++++++++++++++++++++++++++++++++++
 1 file changed, 126 insertions(+)
 create mode 100755 misc/tools/conflict-rss.sh

diff --git a/misc/tools/conflict-rss.sh b/misc/tools/conflict-rss.sh
new file mode 100755
index 00000000..5b61861a
--- /dev/null
+++ b/misc/tools/conflict-rss.sh
@@ -0,0 +1,126 @@
+#!/bin/sh
+
+set -e
+
+action=$1
+outdir=$2
+repodir=$3
+
+branches()
+{
+	git for-each-ref 'refs/remotes' | grep -vE '	refs/remotes/([^/]*/HEAD|.*/archived/.*)$'
+}
+
+escape_html()
+{
+	sed -e 's/&/\&amp;/g; s/</&lt;/g; s/>/&gt;/g'
+}
+
+to_rss()
+{
+	outdir=$1
+	name=$2
+	hash=$3
+	branch=$4
+
+	filename=$outdir/`echo -n "$name" | tr -c 'A-Za-z0-9' '_'`.xml
+	datetime=`date --rfc-2822`
+	branch=`echo "$branch" | escape_html`
+
+	if ! [ -f "$filename" ]; then
+		cat >"$filename" <<EOF
+<?xml version="1.0" encoding="UTF-8" ?>
+<rss version="2.0">
+<channel>
+	<title>Merge conflicts for $name</title>
+	<link>...</link>
+	<description>...</description>
+	<lastBuildDate>$datetime</lastBuildDate>
+	<ttl>3600</ttl>
+EOF
+	fi
+	cat >>"$filename" <<EOF
+	<item>
+		<title>$branch ($hash)</title>
+		<link>...</link>
+		<description><![CDATA[
+EOF
+
+	escape_html >>"$filename"
+
+	cat >>"$filename" <<EOF
+		]]></description>
+	</item>
+EOF
+}
+
+finish_rss()
+{
+	cat <<EOF >>"$1"
+</channel>
+</rss>
+EOF
+}
+
+if [ -z "$outdir" ]; then
+	set --
+fi
+
+case "$action" in
+	--init)
+		rm -rf "$outdir"
+		mkdir -p "$outdir"
+		;;
+	--finish)
+		for f in "$outdir"/*; do
+			[ -f "$f" ] || continue
+			finish_rss "$f"
+		done
+		;;
+	--add)
+		(
+		 	if [ -n "$repodir" ]; then
+				cd "$repodir"
+			fi
+			branches
+		) | while read -r HASH TYPE REFNAME; do
+			echo >&2 -n "$repodir $REFNAME..."
+			out=$( (
+				if [ -n "$repodir" ]; then
+					cd "$repodir"
+				fi
+				git reset --hard >/dev/null 2>&1
+				if out=`git merge --no-commit -- "$REFNAME" 2>&1`; then
+					good=true
+				else
+					good=false
+					echo "$out"
+				fi
+				git reset --hard >/dev/null 2>&1
+			) )
+			if [ -n "$out" ]; then
+				n=${REFNAME#refs/remotes/[^/]*/}
+				case "$n" in
+					*/*)
+						b=${n#*/}
+						n=${n%%/*}
+						;;
+					*)
+						b="/$n"
+						n=divVerent
+						;;
+				esac
+				echo "$out" | to_rss "$outdir" "$n" "$HASH" "$b"
+				echo >&2 " CONFLICT"
+			else
+				echo >&2 " ok"
+			fi
+		done
+		;;
+	*)
+		echo "Usage: $0 --init OUTDIR"
+		echo "       $0 --add OUTDIR [REPODIR]"
+		echo "       $0 --finish OUTDIR"
+		exit 1
+		;;
+esac
-- 
2.39.2