From 40e562a93a293b65b85d7980c871219d8218ec6a Mon Sep 17 00:00:00 2001
From: Erich Eckner <git@eckner.net>
Date: Fri, 9 Jun 2017 14:53:53 +0200
Subject: introduce lock file for package database

---
 bin/return-assignment | 6 ++++++
 conf/default.conf     | 4 ++++
 2 files changed, 10 insertions(+)

diff --git a/bin/return-assignment b/bin/return-assignment
index b217409..04648ca 100755
--- a/bin/return-assignment
+++ b/bin/return-assignment
@@ -22,13 +22,19 @@
 # Create a lock file and a trap.
 
 exec 9> "${build_list_lock_file}"
+exec 8> "${package_database_lock_file}"
 if ! flock -n 9; then
   >&2 echo 'come back (shortly) later - I cannot lock build list.'
   exit 1
 fi
+if ! flock -n 8; then
+  >&2 echo 'come back (shortly) later - I cannot lock package database.'
+  exit 1
+fi
 
 function clean_up_lock_file {
   rm -f "${build_list_lock_file}"
+  rm -f "${package_database_lock_file}"
 }
 
 trap clean_up_lock_file EXIT
diff --git a/conf/default.conf b/conf/default.conf
index 1d29509..947196f 100755
--- a/conf/default.conf
+++ b/conf/default.conf
@@ -42,6 +42,10 @@ if [ -z "${build_list_lock_file}" ]; then
   build_list_lock_file="${work_dir}/build-list.lock"
 fi
 
+if [ -z "${package_database_lock_file}" ]; then
+  package_database_lock_file="${work_dir}/package-database.lock"
+fi
+
 mkdir -p "${work_dir}"
 touch "${work_dir}/build-list"
 touch "${work_dir}/deletion-list"
-- 
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