From e33c46249d18d013a3c8354d413ae37464860da3 Mon Sep 17 00:00:00 2001
From: Mathieu Maret <mathieu.maret@gmail.com>
Date: Wed, 26 Apr 2017 18:00:50 +0200
Subject: [PATCH] script: generate patch from svn

---
 scripts/svn_patch | 59 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 59 insertions(+)
 create mode 100755 scripts/svn_patch

diff --git a/scripts/svn_patch b/scripts/svn_patch
new file mode 100755
index 0000000..a08bb60
--- /dev/null
+++ b/scripts/svn_patch
@@ -0,0 +1,59 @@
+#!/bin/bash
+set -euo pipefail
+IFS=$'\n\t'
+
+addHeader=false
+
+function usage {
+	echo -e "Usage: $(basename $0) [NB_COMMIT]"
+}
+
+while getopts ":h" opt; do
+	case $opt in
+		h) echo "Printing headers"
+                addHeader=true
+		;;
+		\?)
+		echo "Invalid option: -$OPTARG" >&2
+		usage
+		exit 1
+		;;
+	esac
+done
+shift $(( OPTIND - 1 ))
+
+if [ $# != 1 ]; then
+        usage
+        exit 1
+fi
+
+nb_rev=$1
+nb_rev=$((nb_rev+1))
+revisions=$(svn log -l $nb_rev | grep -e "^r[0-9]" | cut -f1 -d" " | cut -c2-)
+i=0
+prev=0
+first=0
+for rev in $revisions; do
+        if [ $prev == 0 ]; then
+                first=${rev}
+                prev=${rev}
+                continue
+        fi
+        commit_msg=$(svn log -r${prev}| sed '4q;d')
+        commit_msg=${commit_msg// /_}
+        commit_msg=${commit_msg//\//_}
+        file_name=$(printf "%04d_r%d_%s.patch" ${i} ${prev} ${commit_msg})
+        i=$((i+1))
+        echo "Create path ${file_name}"
+        if $addHeader; then
+                svn log -r${prev} > $file_name
+                svn diff -r${rev}:${prev} >> $file_name
+        else
+                svn diff -r${rev}:${prev} > $file_name
+        fi
+        prev=${rev}
+done
+
+root=$(svn info | grep "Relative URL" | cut -d"^" -f2)
+files=$(svn log -r${rev}:${first} --verbose | grep "   [AM] " | awk '{print $2}' | sort -u | sed "s#${root}##" |sed "s#^/##" | sed '/^$/d')
+echo $files > modified_files