1 files changed, 46 insertions, 0 deletions
diff --git a/bin/retry b/bin/retry
new file mode 100755
index 000000000..419ece62a
--- /dev/null
+++ b/bin/retry
@@ -0,0 +1,46 @@
+#!/bin/bash
+# https://github.com/travis-ci/travis-build/blob/cbe49ea239ab37b9b38b5b44d287b7ec7a108c16/lib/travis/build/templates/header.sh#L243-L260
+#
+# MIT LICENSE
+#
+# Copyright (c) 2016 Travis CI GmbH <contact@travis-ci.org>
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+retry() {
+  local result=0
+  local count=1
+
+  while [ $count -le 3 ]; do
+    if [ $result -ne 0 ]; then
+      echo -e "\n${ANSI_RED}The command \"$@\" failed. Retrying, $count of 3.${ANSI_RESET}\n" >&2
+    fi
+
+    "$@" && { result=0 && break; } || result=$?
+    count=$(($count + 1))
+    sleep 1
+  done
+
+  if [ $count -gt 3 ]; then
+    echo -e "\n${ANSI_RED}The command \"$@\" failed 3 times.${ANSI_RESET}\n" >&2
+  fi
+
+  return $result
+}
+
+retry $@