A non-zero exit status will be returned on one or more failure

Tool will now use date-based versioning scheme: '%Y%m%d.N', where N will
get incremented if multiple releases happen during a day. This is not done
automatically currently.

Some additional smaller changes were done to support exit status and
versioning.

1 files changed, 35 insertions, 3 deletions

diff --git a/mirror.sh b/mirror.sh
index 4ded042..49a3057 100644
--- a/mirror.sh
+++ b/mirror.sh
@@ -1,4 +1,16 @@
 #!/bin/sh
+_version() {
+	echo "@VERSION@"
+	exit 0
+}
+
+
+_usage() {
+	echo "Usage: $0 [-v] [list]"
+	exit 1
+} >&2
+
+
 _path() {
 	local path="$(url %h%p $1)"
 	case "${path}" in
@@ -11,14 +23,34 @@ _path() {
 _update() {
 	local repo="$1"
 	local path="$(_path ${repo})"
-	test -d "${path}" || git clone -q --mirror "${repo}" "${path}"
-	git -C "${path}" fetch -q && echo "Updated ${path}" || echo "Failed to update ${path}"
+	test -d "${path}" || git clone -q --mirror "${repo}" "${path}" || return 1  # TODO: Check if remotes are the same?
+	if git -C "${path}" fetch -q; then
+		echo "Updated ${path}"
+	else
+		echo "Failed to update ${path}" >&2
+		return 1
+	fi
 }
 
 
+while getopts :v opt; do
+	case ${opt} in
+		v) _version;;
+		?) _usage;;
+	esac
+done
+shift $(( ${OPTIND} - 1 ))
 list="${1:-repositories.list}"
 test -f "${list}" || exit 1
+pids=
 while read repo; do
 	_update "${repo}" &
+	pids="${pids} $!"
 done <"${list}"
-wait
+failed=0
+for pid in ${pids}; do
+	if ! wait ${pid}; then
+		failed=1
+	fi
+done
+exit ${failed}